US3289649A - Rotary piston engine - Google Patents
Rotary piston engine Download PDFInfo
- Publication number
- US3289649A US3289649A US398367A US39836764A US3289649A US 3289649 A US3289649 A US 3289649A US 398367 A US398367 A US 398367A US 39836764 A US39836764 A US 39836764A US 3289649 A US3289649 A US 3289649A
- Authority
- US
- United States
- Prior art keywords
- casing
- pores
- sprayed
- internal combustion
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000002485 combustion reaction Methods 0.000 claims description 26
- 239000000126 substance Substances 0.000 claims description 23
- 229910052751 metal Inorganic materials 0.000 claims description 21
- 239000002184 metal Substances 0.000 claims description 21
- 230000001050 lubricating effect Effects 0.000 claims description 20
- 238000010276 construction Methods 0.000 claims description 19
- 238000007789 sealing Methods 0.000 claims description 15
- 229920003002 synthetic resin Polymers 0.000 claims description 7
- 239000000057 synthetic resin Substances 0.000 claims description 7
- 239000000945 filler Substances 0.000 description 27
- 239000011148 porous material Substances 0.000 description 27
- 239000000463 material Substances 0.000 description 15
- 239000010687 lubricating oil Substances 0.000 description 6
- 239000003921 oil Substances 0.000 description 6
- 238000005461 lubrication Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 239000005083 Zinc sulfide Substances 0.000 description 4
- 229910002804 graphite Inorganic materials 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- 229920001568 phenolic resin Polymers 0.000 description 4
- 239000005011 phenolic resin Substances 0.000 description 4
- 229910052984 zinc sulfide Inorganic materials 0.000 description 4
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 3
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 229910000669 Chrome steel Inorganic materials 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 229920001342 Bakelite® Polymers 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000004637 bakelite Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B55/00—Internal-combustion aspects of rotary pistons; Outer members for co-operation with rotary pistons
- F02B55/08—Outer members for co-operation with rotary pistons; Casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/02—Surface coverings of combustion-gas-swept parts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S417/00—Pumps
- Y10S417/01—Materials digest
Definitions
- the closing of the pores with a filler offers the advantage that any dust produced during grinding or honing cannot become deposited in the pores, out of which it may leave again in due course and may give rise to operating failures and breakdowns.
- substances 6 with lubricating properties are embedded into the ller material 5.
- the substances 6, schematically illustrated in the drawing by dots, may consist of colloidal graphite, of molybdenum disultide or of zinc sulfide or mixtures therein in smallest or finest particle size. Consequently, if the lubrication with the usual lubricants should not suice temporarily or at certain places of the casing surface 2, the substances 6 in the filler 5 produce excellent emergency running characteristics so that the lack of lubrication is bridged without danger for the engine.
- the housing casing in accordance with the present invention prevents to a certain extent that the sealing bars or strips sliding along the inner casing surface 2 adapt themselves well to the casing surface by the usual grinding action, it is advantageous to subject the casing housing in engine operation to a running-in period of short duration with the use of runningin oil, for example, plain or non-additive oil. As borne out in practice, a running-in period of about two hours suffices.
- said filler means having admixed thereto at least over a portion of the inner runner surfaces a subsance with lubricating properties and selected from the group essentially consisting of graphite, molybdenum disulfide, zinc sulfide and mixtures thereof.
- a housing casing of a rotary piston internal combustion engine, especially of trochoidal construction comprising:
- the substance with lubricating properties being admixed in the filler means only over a predetermined section of the circumference of the inner surfaces of the casing means in relation to the direction of rotation thereof.
- filler means essentially consisting of synthetic resin applied to said sprayed-on layer for closing the pores thereof,
- a rotary piston internal combustion engine of trochoidal construction which comprises a casing, a polygonal piston rotatable within said casing and having sealing strips at the corners thereof, inlet and outlet means in said casing, a sprayed-on relatively hard metal layer on the inside of the housing casing serving as inner runner surfaces for the rotating piston and ller means essentially consisting of a synthetic resin applied to said layer for closing the pores thereof, said filler means having admixed thereto over at least a portion of the runner surfaces a substance with lubricating properties,
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Description
De@ 6, 1966 H. LAMM 3,289,649
ROTARY PISTON ENGINE Filed sept. 22, 1964 HQI l N v r; MOR. HEINZ LAMM A Y y ORNE VLSI United States Patent O 3,289,649 ROTARY PISTON ENGINE Heinz Lamm, Stuttgart-Bad Cannstatt, Germany, assigner to Daimler-Benz Aktiengesellschaft, Stuttgart-Unterturkheim, Germany Filed Sept. 22, 1964, Ser. No. 393,367
Claims priority, application Germany, Sept. 26, 1963,
12 Claims. (Cl. 12S- 8) The present invention relates to a housing case for a rotary piston internal combustion engine, especially of trochoidal construction, which consists preferably of lightweight metal and which is provided with an inner casing surface serving as cam track or runner surface for the piston and consisting of a sprayed-on metal, for example, of a steel containing chrome.
In the actual operation of rotary piston internal combustion engines, it has been found that with an inner casing surface consisting of a sprayed-on metal as cam track or runner surface for the piston, the lubricating oil is pressed into the pores of the inner casing surface by the sealing strips or bars arranged at the piston so that these pores become filled with a mixture of air bubbles and oil. This mixture of air bubbles and oil falls back or disappears elastically yieldingly into the bottom of the pores when a sealing strip or bar is guided along the casing surface, and as a result thereof, a metallic contact takes place between the sealing strip and the casing surface with all the disadvanltageous consequences thereof for the operation and length of life of internal combustion engine.
The present invention aims at eliminating the aforementioned disadvantages. In solution of the underlying problems the present invention essentially consists in that a filler material, for example, a synthetic resin solution, is applied onto the casing surface consisting of sprayedon metal for closing the pores which resin solution is provided with substances having lubricating properties, for example, graphite, molybdenum disulfide or zinc sulfide.
By the application of a filler enriched with substances having lubricating properties onto the casing surface of fthe housing case, there is achieved a closing of the pores of the sprayed-on metal and there is prevented that the lubricating oil reaches into the pores where it no longer can fulill its task to lubricate the movement of the sealing bars along the casing surface. The arrangement of substances with lubricating properties in the ller serves to counter the diiiculties in the establishment of sumciently good lubricating conditions which occur nonetheless at times. In those cases or places where customary lubricants no longer suice, the substances inserted into or embedded in the filler produce excellent emergency running properties. Furthermore, the closing of the pores with a filler, when it takes place prior to grinding or honing of the casing surface, offers the advantage that any dust produced during grinding or honing cannot become deposited in the pores, out of which it may leave again in due course and may give rise to operating failures and breakdowns.
According to a further feature of the present invention, the arrangement may be so made thatas related to the circumference of the casing surface-the substances with lubricating properties in the ller material are arranged only in certain sections thereof. With rotary piston internal combustion engines of trochoidal construction the substances with lubricating properties may be arranged within the filler material along those parts of the casing surfaces which enclose the suction space and the compression space of the internal combustion engine.
The iiller material may consist advantageously of a commercially available phenolic resin.
Furthermore, the housing case may be subjected with an engine operation to a brief running-in period utilizing a running-in oil, for example, a plain or non-additive type motor oil, in order to achieve in this manner that the sealing elements sliding along the inner casing surfaces of the casing adapt themselves well to the casing surface by the resulting grinding action.
Accordingly, it is an object of the present invention to provide a rotary piston internal combustion engine of the type described above which eliminates the aforementioned drawbacks encountered with the prior art constructions by simple and relatively inexpensive means.
Another object of the present invention resides in the provision of a casing for an internal combustion engine of trochoidal construction which assures adequate lubrication under all operating conditions for the sliding movements of the sealing bars arranged at the corners of the piston.
A further object of the present invention resides in the provision of a housing for an internal combustion engine of the type described above provided with a sprayed-on metallic casing surface in which the sprayed-on surface is so prepared and treated as to prevent Athe disappearance of the lubricating oil into the pores of the surface.
Another object of the present invention resides in the provision of a rotary piston internal combustion engine of trochoidal construction in which metal-to-metal contact between the sealing bars at the piston corners and the internal surfaces of the housing casing are prevented under all operating conditions.
Still a further object of the present invention resides in the provision of an internal combustion engine of the type described above, especially of a rotary piston internal combustion engine of trochoidal construction provided with an aluminum housing to which is applied a relatively very hard sprayed-on metal surface, which assures proper operation and relatively long length of life of the engine.
Still another object of the present invention resides in the provision of a rotary piston internal combustion engine'with a sprayed-on metal casing surface in which the pores are lled with a material having lubricating properties.
A further object of the present invention resides in the provision of a sprayed-on hard metallic surface along the inner walls of the housing of a rotary piston internal cornbustion engine in which the pores are closed to prevent the accumulation of dust that may result during grinding and/ or honing of the surfaces.
These and other objects, features and advantages of the present invention will become more obvious from the following description when taken in connection with the accompanying drawing which shows, for purposes of illustration only, one embodiment in accordance with the present invention, and wherein FIGURE l is a schematic longitudinal cross sectional View, taken transversely to the axial direction, through a housing casing for a rotary piston internal combustion engine of trochoidal construction in accordance with the present invention, and
FIGURE 2 is a partial cross sectional view, on an enlarged scale, through the housing casing of FIGURE 1.
Referring now to the drawing wherein like reference numerals are used throughout the two views to designate like parts, the housing casing ll of FiGURE l for a rotary piston internal combustion engine of trochoidal construction consists of light metal, such as aluminum, aluminum alloy and the like and is provided as running-surface for the piston with a two-arched internal casing surface 2 which is constituted by a layer 3 of sprayed-on metal, for example, by a sprayed-on layer of chrome-steel, of carbon steel, or the like, The casing surface 2 is very Wearresistant but is provided with a large number of pores by reason of the fact that the layer 3 is sprayed on. These pores are illustrated in FIGURE 2 greatly enlarged and are designated therein by reference numeral 4.
In order that no lubricating oil can be pressed into the pores 4 during operation of the internal combustion engine by the sealing bars of conventional construction arranged at the piston corners, the pores 4 are closed With a filler material This filler material 5, which consists for example, of a phenolic resin combined or mixed with Bakelite as binder is appropriately applied directly after the spraying operation of the layer 3 in liquid form, that is, when the casing surface Z is still completely free of any fat or greasy substance. The liller material 5 penetrates deep into the pores 4, fills the same substantially completely and then solidies so that no lubricating oil can disappear into the pores 4 or can be pressed into the pores 4 by the sealing bars (not shown). Nevertheless, in order to have available a corresponding emergency running characteristic during an interruption of the lubrication as may occur occasionally in engine operation, substances 6 with lubricating properties are embedded into the ller material 5. The substances 6, schematically ilustrated in the drawing by dots, may consist of colloidal graphite, of molybdenum disultide or of zinc sulfide or mixtures therein in smallest or finest particle size. Consequently, if the lubrication with the usual lubricants should not suice temporarily or at certain places of the casing surface 2, the substances 6 in the filler 5 produce excellent emergency running characteristics so that the lack of lubrication is bridged without danger for the engine.
As exhaustive practical tests with rotary-piston internalcombustion-engines have demonstrated, it sufces if the substances 6 with the lubricating properties are admixed to the filler material 5 in the so-called cold arc" '7 (FIG. l) of the inner casing surface 2 which extends from the center between inlet and outlet channels in the direction of rotation of the piston up to within proximity of the spark plug; for the danger exists more likely within the cold arc that the lubrication with the lubricating Oil is so impaired by the fuel that the internal combustion engine is relegated to the emergency running properties provided by the substances 6. Within the remaining socalled warm arc of the inner surfaces 2, the surface of the filler material 5, which is not enriched with the substances 6, produces an extraordinarily smooth and sliding oxidation layer in combination with the petroleum hydrocarbons which, as has been discovered, prevents the wear-appearances produced by the sealing bars at the inner casing surfaces 2.
Appropriately, the lling out of the pores 4 with the filler 5 with or without added substance 6 takes place prior to grinding or honing of the inner casing surface 2 because filler 5 prevents that, for example, grinding dust gets into the pores 4.
Since the construction of the housing casing in accordance with the present invention prevents to a certain extent that the sealing bars or strips sliding along the inner casing surface 2 adapt themselves well to the casing surface by the usual grinding action, it is advantageous to subject the casing housing in engine operation to a running-in period of short duration with the use of runningin oil, for example, plain or non-additive oil. As borne out in practice, a running-in period of about two hours suffices.
While I have shown and described one embodiment in accordance with the present invention, it is understood that the present invention is not limited thereto, but is susceptible of numerous changes and modifications as known to a person skilled in the art. The particular type of filler material and/or of the lubricating additives admixed to the filler material may be varied at will, depending on availability of the particular or equivalent materials and on the desired characteristics to be obtained.
Furthermore, any commercially available type of material of the type mentioned above or equivalent thereof is satisfactory for purposes of the present invention. Additionally the details of construction of the rotary piston internal combustion engine may be varied at will as known by a person skilled in the art.
Thus, while I have shown and described only one embodiment in accordane with the present invention, it is understood that the same is not limited thereto but is susceptible of numerous changes and modifications as known to a person skilled in the art, and I therefore do not wish to be limited to the details shown and described herein but intend to cover all such changes and modifications as are encompassed by the scope of the appended claims.
I claim:
1. A housing casing of a rotary piston internal combustion engine, especiallyof trochoidal construction, comprising:
housing casing means,
a sprayed-on relatively hard metal layer on the inside of the housing casing means and serving as inner running surfaces for the rotating piston,
and filler means applied to said sprayed-on layer for closing the pores thereof.
2. A housing casing according to claim 1, wherein said filler means essentially consists of a synthetic resin.
3. A housing casing according to claim 1, wherein said ller means essentially consists of phenolic resin.
4. A housing casing of a rotary piston internal combustion engine, especially of trochoidal construction, comprising:
housing casing means,
a sprayed-on relatively hard metal layer on the inside of the housing casing means and serving as inner runner surfaces for the rotating piston,
and filler means applied to said sprayed-on layer for closing the pores thereof,
said filler means having admixed thereto at least over a portion of the inner runner surfaces a substance with lubricating properties.
5. A housing casing of a rotary piston internal combustion engine, especially of trochoidal construction, comprising:
housing casing means,
a sprayed-on relatively hard metal layer on the inside of the housing casing means and serving as inner runner surfaces for the rotating piston,
and filler means essentially consisting of synthetic resin applied to said sprayed-on layer for closing the pores thereof,
said filler means having admixed thereto at least over a portion of the inner runner surfaces a subsance with lubricating properties and selected from the group essentially consisting of graphite, molybdenum disulfide, zinc sulfide and mixtures thereof.
6. A housing casing of a rotary piston internal combustion engine, especially of trochoidal construction, comprising:
housing casing means,
a `sprayed-on relatively hard metal layer on the inside of the housing casing means and serving as inner runner surfaces for the rotating piston,
and filler means applied to said sprayed-on layer for closing the pores thereof,
said ller means having admixed thereto at least over a portion of the inner runner surfaces a substance with lubricating properties,
the substance with lubricating properties being admixed in the filler means only over a predetermined section of the circumference of the inner surfaces of the casing means in relation to the direction of rotation thereof.
7. A housing casing of a rotary piston internal combuston engine, especially of trochoidal construction, comprising:
housing casing means,
a sprayed-on relatively hard metal layer on the inside of the housing casing means and serving as inner runner surfaces for the rotating pistons,
and filler means applied to said sprayed-on layer for closing the pores thereof,
said filler means having admixed thereto at least over a portion of the inner runner surfaces a substance with lubricating properties,
the substance with lubricating properties being admixed in the filler means only over a predetermined section of the circumference of the inner surfaces of the casing means in relation to the direction of rotation thereof,
said Isection essentially consisting of the suction space and compression space of the internal combustion engine.
8. A housing casing of a rotary piston internal combustion engine, especially of trochoidal construction, cornprising:
housing casing means of light metal,
a sprayed-on relatively hard metal layer on the inside of the housing casing means and serving as inner rtmner surfaces for the rotating piston,
and filler means essentially consisting of synthetic resin applied to said sprayed-on layer for closing the pores thereof,
said ller means having admixed thereto at least over a portion of the inner runner surfaces a substance with lubricating properties and selected from the group essentially consisting of graphite, molybdenum disulfide, zinc sulfide and mixtures thereof,
the substance with lubricating properties being admixed in the ller means only over a predetermined section of the circumference of the inner surfaces of the casing means in relation to the direction of rotation thereof,
said section essentially consisting of the suction space and compression space of the internal combustion engine.
9. A housing casing according to claim 6, wherein said synthetic resin is phenolic resin.
10. A housing casing according to claim 9, wherein said housing casing means essentially consists of aluminum or aluminum alloy.
11. A housing casing according to claim 1t), wherein said sprayed-on metal layer essentially consists of a hard metal selected from the group of chrome and carbon steels.
12. In a rotary piston internal combustion engine of trochoidal construction, which comprises a casing, a polygonal piston rotatable within said casing and having sealing strips at the corners thereof, inlet and outlet means in said casing, a sprayed-on relatively hard metal layer on the inside of the housing casing serving as inner runner surfaces for the rotating piston and ller means essentially consisting of a synthetic resin applied to said layer for closing the pores thereof, said filler means having admixed thereto over at least a portion of the runner surfaces a substance with lubricating properties,
the improvement essentially consisting of operating said engine during a short running-in period with the use lof a plain running-in oil to adapt the sealing strips to said inner runner surfaces.
References Cited by the Examiner UNITED STATES PATENTS Re. 24,932 l/1961 Davey 103-216 X 3,155,313 11/1964 Bentele 123-8 X FOREIGN PATENTS 718,866 3/1942 Germany.
MARK NEWMAN, Primary Examiner SAMUEL LEVINE, Examiner.
F. T. SADLER, Assistant Examiner.
Claims (1)
12. IN A ROTARY PISTON INTERNAL COMBUSTION ENGINE OF TROCHOIDAL CONSTRUCTION, WHICH COMPRISES A CASING, A POLYGONAL PISTON ROTATABLE WITHIN SAID CASING AND HAVING SEALING STRIPS AT THE CORNERS THEREOF, AND OUTLET MEANS IN SAID CASING, A SPRAYED-ON RELATIVELY HARD METAL LAYER ON THE INSIDE OF THE HOUSING CASING SERVING AS INNER RUNNER SURFACES FOR THE ROTATING PISTON AND FILLER MEANS ESSENTIALLY CONSISTING OF A SYNTHETIC RESIN APPLIED TO SAID LAYER FOR CLOSING THE PORES THEREOF, SAID FILLER MEANS HAVING ADMIXED THERETO OVER AT LEAST A PORTION OF THE RUNNER SURFACES A SUBSTANCE WITH LUBRICATING PROPERTIES, THE IMPROVEMENT ESSENTIALLY CONSISTING OF OPERATING SAID ENGINE DURING A SHORT RUNNING-IN PERIOD WITH THE USE OF A PLAIN RUNNING-IN OIL TO ADAPT THE SEALING STRIPS TO SAID INNER RUNNER SURFACES.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DED0042569 | 1963-09-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3289649A true US3289649A (en) | 1966-12-06 |
Family
ID=7046951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US398367A Expired - Lifetime US3289649A (en) | 1963-09-26 | 1964-09-22 | Rotary piston engine |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3289649A (en) |
| DE (1) | DE1451711A1 (en) |
| GB (1) | GB1006859A (en) |
Cited By (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3359953A (en) * | 1965-03-10 | 1967-12-26 | Nsu Motorenwerke Ag | Rotary internal combustion engine |
| US3359956A (en) * | 1966-04-19 | 1967-12-26 | Curtiss Wright Corp | Rotor construction for rotary engines |
| US3359615A (en) * | 1963-03-06 | 1967-12-26 | Nat Lead Co | Method of making a die cast cylinder for internal combustion engines |
| US3518920A (en) * | 1968-07-17 | 1970-07-07 | Charles W Bimba | Fluid power motor with non-rotating piston rod |
| US3608535A (en) * | 1968-11-06 | 1971-09-28 | Outboard Marine Corp | Sealant for wear-resistant coating |
| US3693608A (en) * | 1971-01-15 | 1972-09-26 | Toyo Kogyo Co | End wall construction for a rotary piston internal combusion engine |
| US3771904A (en) * | 1971-03-16 | 1973-11-13 | Audi Ag | Rotor for rotary-piston mechanism |
| US3778201A (en) * | 1972-03-23 | 1973-12-11 | Davey Compressor Co | Compressor blade |
| US3809020A (en) * | 1970-01-22 | 1974-05-07 | H Takitani | Sliding vane rotary engines and process for obtaining high torque power |
| US3830209A (en) * | 1973-03-05 | 1974-08-20 | Robert Jones | Cylinder head and method of reconstructing same |
| US3841724A (en) * | 1972-10-19 | 1974-10-15 | Du Pont | Wear resistant frictionally contacting surfaces |
| US3860367A (en) * | 1973-08-24 | 1975-01-14 | Ford Motor Co | Controlled porous coating for rotary engine side housing |
| US3877854A (en) * | 1972-09-12 | 1975-04-15 | Nippon Piston Ring Co Ltd | Relative combination of apex seal and rotor housing in rotary piston internal combustion engine |
| US3890067A (en) * | 1973-08-24 | 1975-06-17 | Ford Motor Co | Rubbing seal system for a rotary combustion engine |
| US3890950A (en) * | 1973-10-02 | 1975-06-24 | Megatech Corp | Piston lubricating |
| US3904327A (en) * | 1971-11-10 | 1975-09-09 | Rovac Corp | Rotary compressor-expander having spring biased vanes |
| US3973883A (en) * | 1972-07-25 | 1976-08-10 | Vandervell Products Limited | Rotary piston machines |
| US4044589A (en) * | 1973-07-20 | 1977-08-30 | Vandervell Products Limited | Rotary piston machines |
| US4509906A (en) * | 1983-03-31 | 1985-04-09 | Toyo Kogo Co., Ltd. | Vane type rotary compressor having a wear resistant resin coating |
| US4724819A (en) * | 1987-01-23 | 1988-02-16 | Precision National Plating Services, Inc. | Cylinder liner reconditioning process and cylinder liner produced thereby |
| US4758139A (en) * | 1985-10-30 | 1988-07-19 | Mazda Motor Corporation | Side housing for a rotary piston engine and a method for manufacturing the same |
| US4772187A (en) * | 1986-09-08 | 1988-09-20 | Thompson George A | Rotary pump |
| US4986231A (en) * | 1989-05-04 | 1991-01-22 | Outboard Marine Corporation | Piston with graphite fiber mesh |
| US6005214A (en) * | 1996-06-26 | 1999-12-21 | Cramer; Margaret D. | Method of making wear resistant material lined housings |
| US6044820A (en) * | 1995-07-20 | 2000-04-04 | Spx Corporation | Method of providing a cylinder bore liner in an internal combustion engine |
| WO2011045179A3 (en) * | 2009-10-14 | 2012-02-23 | Brinkmann Pumpen K.H. Brinkmann Gmbh & Co. Kg | Screw spindle machine and method of manufacturing the same |
| US10718328B2 (en) * | 2015-11-30 | 2020-07-21 | Brinkmann Pumpen K.H. Brinkmann Gmbh & Co. Kg | Threaded spindle machine |
| US11333068B1 (en) * | 2021-03-23 | 2022-05-17 | Pratt & Whitney Canada Corp. | Side wall for rotary engine housing |
| US20240110480A1 (en) * | 2022-09-29 | 2024-04-04 | Knapp e-mobility GmbH | Method for Producing a Housing, and Shell Housing and Housing for a Rotary Piston Engine |
| US12291991B1 (en) * | 2023-12-14 | 2025-05-06 | Pratt & Whitney Canada Corp. | Housing assembly for rotary engine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE718866C (en) * | 1939-04-09 | 1942-03-24 | Goetzewerke | Machine part in internal combustion engines covered with a graphite-containing sliding layer |
| USRE24932E (en) * | 1961-01-31 | Light metal vane for rotary compressors | ||
| US3155313A (en) * | 1962-10-01 | 1964-11-03 | Cuertiss Wright Corp | Rotor housing construction of rotating combustion engine |
-
1963
- 1963-09-26 DE DE19631451711 patent/DE1451711A1/en active Pending
-
1964
- 1964-09-22 US US398367A patent/US3289649A/en not_active Expired - Lifetime
- 1964-09-25 GB GB39280/64A patent/GB1006859A/en not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE24932E (en) * | 1961-01-31 | Light metal vane for rotary compressors | ||
| DE718866C (en) * | 1939-04-09 | 1942-03-24 | Goetzewerke | Machine part in internal combustion engines covered with a graphite-containing sliding layer |
| US3155313A (en) * | 1962-10-01 | 1964-11-03 | Cuertiss Wright Corp | Rotor housing construction of rotating combustion engine |
Cited By (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3359615A (en) * | 1963-03-06 | 1967-12-26 | Nat Lead Co | Method of making a die cast cylinder for internal combustion engines |
| US3359953A (en) * | 1965-03-10 | 1967-12-26 | Nsu Motorenwerke Ag | Rotary internal combustion engine |
| US3359956A (en) * | 1966-04-19 | 1967-12-26 | Curtiss Wright Corp | Rotor construction for rotary engines |
| US3518920A (en) * | 1968-07-17 | 1970-07-07 | Charles W Bimba | Fluid power motor with non-rotating piston rod |
| US3608535A (en) * | 1968-11-06 | 1971-09-28 | Outboard Marine Corp | Sealant for wear-resistant coating |
| US3809020A (en) * | 1970-01-22 | 1974-05-07 | H Takitani | Sliding vane rotary engines and process for obtaining high torque power |
| US3693608A (en) * | 1971-01-15 | 1972-09-26 | Toyo Kogyo Co | End wall construction for a rotary piston internal combusion engine |
| US3771904A (en) * | 1971-03-16 | 1973-11-13 | Audi Ag | Rotor for rotary-piston mechanism |
| US3904327A (en) * | 1971-11-10 | 1975-09-09 | Rovac Corp | Rotary compressor-expander having spring biased vanes |
| US3778201A (en) * | 1972-03-23 | 1973-12-11 | Davey Compressor Co | Compressor blade |
| US3973883A (en) * | 1972-07-25 | 1976-08-10 | Vandervell Products Limited | Rotary piston machines |
| US3877854A (en) * | 1972-09-12 | 1975-04-15 | Nippon Piston Ring Co Ltd | Relative combination of apex seal and rotor housing in rotary piston internal combustion engine |
| US3841724A (en) * | 1972-10-19 | 1974-10-15 | Du Pont | Wear resistant frictionally contacting surfaces |
| US3830209A (en) * | 1973-03-05 | 1974-08-20 | Robert Jones | Cylinder head and method of reconstructing same |
| US4044589A (en) * | 1973-07-20 | 1977-08-30 | Vandervell Products Limited | Rotary piston machines |
| US3890067A (en) * | 1973-08-24 | 1975-06-17 | Ford Motor Co | Rubbing seal system for a rotary combustion engine |
| US3860367A (en) * | 1973-08-24 | 1975-01-14 | Ford Motor Co | Controlled porous coating for rotary engine side housing |
| US3890950A (en) * | 1973-10-02 | 1975-06-24 | Megatech Corp | Piston lubricating |
| US4509906A (en) * | 1983-03-31 | 1985-04-09 | Toyo Kogo Co., Ltd. | Vane type rotary compressor having a wear resistant resin coating |
| US4758139A (en) * | 1985-10-30 | 1988-07-19 | Mazda Motor Corporation | Side housing for a rotary piston engine and a method for manufacturing the same |
| US4772187A (en) * | 1986-09-08 | 1988-09-20 | Thompson George A | Rotary pump |
| US4724819A (en) * | 1987-01-23 | 1988-02-16 | Precision National Plating Services, Inc. | Cylinder liner reconditioning process and cylinder liner produced thereby |
| US4986231A (en) * | 1989-05-04 | 1991-01-22 | Outboard Marine Corporation | Piston with graphite fiber mesh |
| US6044820A (en) * | 1995-07-20 | 2000-04-04 | Spx Corporation | Method of providing a cylinder bore liner in an internal combustion engine |
| US6005214A (en) * | 1996-06-26 | 1999-12-21 | Cramer; Margaret D. | Method of making wear resistant material lined housings |
| WO2011045179A3 (en) * | 2009-10-14 | 2012-02-23 | Brinkmann Pumpen K.H. Brinkmann Gmbh & Co. Kg | Screw spindle machine and method of manufacturing the same |
| CN102695879A (en) * | 2009-10-14 | 2012-09-26 | K.H.布林克曼泵两合有限公司 | Screw spindle machine and method of manufacturing the same |
| US8794944B2 (en) | 2009-10-14 | 2014-08-05 | Brinkmann Pumpen K.H. Brinkmann Gmbh & Co. Kg | Screw spindle machine and method of manufacturing the same |
| CN102695879B (en) * | 2009-10-14 | 2015-06-17 | K.H.布林克曼泵两合有限公司 | Screw spindle machine and method of manufacturing the same |
| US10718328B2 (en) * | 2015-11-30 | 2020-07-21 | Brinkmann Pumpen K.H. Brinkmann Gmbh & Co. Kg | Threaded spindle machine |
| US11333068B1 (en) * | 2021-03-23 | 2022-05-17 | Pratt & Whitney Canada Corp. | Side wall for rotary engine housing |
| US20240110480A1 (en) * | 2022-09-29 | 2024-04-04 | Knapp e-mobility GmbH | Method for Producing a Housing, and Shell Housing and Housing for a Rotary Piston Engine |
| US12291991B1 (en) * | 2023-12-14 | 2025-05-06 | Pratt & Whitney Canada Corp. | Housing assembly for rotary engine |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1006859A (en) | 1965-10-06 |
| DE1451711A1 (en) | 1969-01-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3289649A (en) | Rotary piston engine | |
| US3033180A (en) | Rotating combustion engine seal construction | |
| US3155313A (en) | Rotor housing construction of rotating combustion engine | |
| US4010727A (en) | Internal combustion engine | |
| US3196849A (en) | Apex seal construction for rotary combustion engine | |
| US3522950A (en) | Piston and ptfe ring assembly for internal combustion engines | |
| US3261542A (en) | Rotor and seal construction for rotary mechanisms | |
| US4116593A (en) | Lubricant metering system for rotary piston mechanism | |
| US3174762A (en) | Piston and fire ring construction | |
| US4230027A (en) | Reciprocating piston | |
| US3215340A (en) | Rotary-piston engine construction | |
| US3990818A (en) | Lubrication system for rotary piston mechanisms | |
| US3834845A (en) | Side gas seal means for rotary mechanisms | |
| US3844691A (en) | Lubricant supply system for rotary piston engine | |
| US2613651A (en) | Engine | |
| US3809021A (en) | Rotary-piston injection-type internal combustion engine | |
| US3420214A (en) | Rotary piston engine | |
| US3265046A (en) | Rotary internal combustion engine | |
| US1392536A (en) | Piston-ring | |
| Rogers et al. | Lubricant Studies in Rotary-Combustion Engines | |
| US3944236A (en) | Piston ring | |
| US3730655A (en) | Sealing bar for a rotary piston internal combustion engine | |
| US3693608A (en) | End wall construction for a rotary piston internal combusion engine | |
| US1313905A (en) | Arden j | |
| US1682561A (en) | Motor fuel |