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EP0456677A1 - Moteur a combustion interne a pistons rotatifs - Google Patents

Moteur a combustion interne a pistons rotatifs

Info

Publication number
EP0456677A1
EP0456677A1 EP90902243A EP90902243A EP0456677A1 EP 0456677 A1 EP0456677 A1 EP 0456677A1 EP 90902243 A EP90902243 A EP 90902243A EP 90902243 A EP90902243 A EP 90902243A EP 0456677 A1 EP0456677 A1 EP 0456677A1
Authority
EP
European Patent Office
Prior art keywords
ring gear
rotor
internal combustion
rotary piston
combustion engine
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.)
Withdrawn
Application number
EP90902243A
Other languages
German (de)
English (en)
Inventor
Huschang Sabet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0456677A1 publication Critical patent/EP0456677A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/30—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapers; for testing the alignment of axes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/02—Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F01C1/063—Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents with coaxially-mounted members having continuously-changing circumferential spacing between them
    • F01C1/07—Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents with coaxially-mounted members having continuously-changing circumferential spacing between them having crankshaft-and-connecting-rod type drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/008—Driving elements, brakes, couplings, transmissions specially adapted for rotary or oscillating-piston machines or engines
    • 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
    • F02B53/00—Internal-combustion aspects of rotary-piston or oscillating-piston engines
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the invention relates to a rotary piston internal combustion engine with a rotor rotating within a stationary cylindrical housing at a uniform speed, with at least four ribs pointing essentially radially inwards from a cylindrical outer wall of the rotor, with a non-uniform speed inside the rotor Concentric to the rotor rotating hub, with at least four at equal angular distances from each other projecting radially over the hub, engaging in the space between two ribs and carrying out an oscillating movement relative to these, with at least four pistons Ribs of the rotor axially penetrating, by the oscillating movement of the pistons by means of connecting rods rotatable crankshafts and with rotatably arranged on the crankshaft gears, which mesh with an internally toothed ring gear elastically connected to the housing.
  • a rotary piston displacement engine of this type is known (EP-B-00351136), in which a light and compact design is ensured by the fact that the crankshafts are guided through the ribs of the rotor.
  • the crankshafts In order to avoid imbalance, the crankshafts must be arranged symmetrically with respect to the axis of rotation of the rotor, so that four crankshafts must also be provided in a machine with four pistons.
  • the crankshafts are guided in plain bearings within the rotor. To compensate for dimensional deviations there is therefore only a small amount of play available on the crankshafts during the manufacture and assembly of the connecting rods.
  • the causes for this were, on the one hand, the shock-like loads occurring during the running of the four gear wheels and, on the other hand, a different thermal expansion of the housing cover and the ring gear.
  • the different thermal expansion leads to constant compression of the sleeves in the radial direction during operation, which is overlaid by the tangential, shock-like surface pressures.
  • the invention has for its object to improve the known rotary piston internal combustion engine of the type specified in such a way that the alternating loads occurring between the ring gear and the housing cover can be permanently absorbed.
  • the part of the connecting bolts which engages in the pocket holes of the housing cover is provided with a coating of rubber-elastic material and that the part of the connecting bolts which projects beyond the housing cover is Fit fits into the end holes of the ring gear.
  • the rubber-elastic coating should lie tightly against the wall and the bottom of the blind hole in question in the unloaded state at operating temperature.
  • the rubber-elastic coating is permanently connected to the connecting bolts, preferably vulcanized onto them.
  • the hole circle diameter of the blind holes in the housing cover which is preferably made of light metal, is smaller than that at ambient temperature Pitch circle diameter of the holes in the ring gear made of hardened steel.
  • the diameters of the bolt circles are expediently chosen so that they are essentially the same size at operating temperature.
  • a second variant of the invention provides that at least one damping layer of rubber-elastic material bridging the gap and connecting the ring gear to the housing cover is provided between the surfaces of the ring gear that lie opposite one another and a housing cover, leaving a gap.
  • the mutually opposite surfaces connected by the damping layer form a circumferential or surface toothing between the ring gear and the housing cover.
  • the damping layer can either be composed of pieces arranged at a distance from one another or be formed as a continuous layer extending over the entire gap length or the gap circumference.
  • the damping layer is advantageously vulcanized between the opposing surfaces of the ring gear and the housing cover.
  • the ring gear is secured against axial displacement by a locking ring which is arranged in a circumferential inner groove of the housing and is preferably designed as an open spring ring.
  • the inner groove expediently has twice the width of the securing ring.
  • FIG. 1 shows a longitudinal section through a rotary piston internal combustion engine in two sectional planes forming an angle with one another along the section lines 1-1 of FIG. 2,
  • FIG. 2 shows a section along the section line 2-2 of FIG. 1;
  • FIG. 3 shows an embodiment example of a rotary piston internal combustion engine modified in comparison with FIG. 1 in a halved longitudinal section;
  • FIG. 4 shows a section along the section line 4-4 of FIG. 3.
  • the rotary piston internal combustion engine essentially consists of a stationary housing 11, preferably made of aluminum, with a housing 11 of the same type. shaped speed rotating rotor 10, and in the rotor 10 mounted and rotating at a non-uniform speed hub 30 with four radially outwardly projecting piston-shaped pistons 32.
  • the fuel which is injected into two combustion chambers at the same time via two opposite inlet openings 80 is compressed by the oscillating movement between the pistons 32 and the side walls 14 of the ribs 12 and ignited by two spark plugs 84 screwed into the housing jacket 20. Sealing rings 64 and sealing strips 66 seal the combustion chambers 73, 74 from the housing 11 and from one another.
  • the expanding combustion gases drive the pistons 32 and the ribs 12 apart and escape through the outlet openings 82.
  • the relative movement between the piston 32 and the rotor 10 is carried out by means of four connecting rods 22 articulated on bolts 52 of the hub 30 onto the crank pins 46 of four Transmit ribs 12 axially penetrating crankshafts 24 and thus converted into a rotary movement.
  • Gears 27 connected on the end face to the crankshafts 24 mesh with the teeth 88 of an internal ring gear 28 connected to the housing 11 and thereby convert the rotary movement of the crankshafts 24 into one Rotary movement of the rotor 10 relative to the housing 11.
  • the rotor rotation can be transmitted to a consumer by means of an output shaft 34 connected in one piece to the end face part 19 and mounted in the bearings 42, 44 of the housing covers 40 and 41.
  • the crankshafts 24 are mounted in slide bearings 56 and 58 in the end parts 17 and 19 connected by the outer wall 15 and by an axially arranged piston shaft 72.
  • the large eye 48 of one of the four connecting rods 22 is pushed onto the crank pin 46 of the crankshafts 24, while the small eye 45 of the connecting rods 22 is connected to a bolt 52 inserted into the hub 30.
  • the hub 30 is slidably supported on the piston shaft 72.
  • the piston shaft tapers slightly conically in the direction of the connecting rod side, so that there is a greater bearing play in area 79 than in area 75.
  • the bore 78 in the end face part 17 has a corresponding oversize in relation to the outer diameter of the hub in the area in question.
  • the hub 30 is not positively centered in the articulation plane of the connecting rods 22. Its axis of rotation is defined by three of the four connecting rods 22 and may in the event of dimensional variations in the manufacture or the assembly in Ra 'hmen these deviations deviate from the central axis of the rotor.
  • the axis of rotation of the hub 30 is statically overdetermined by the fourth connecting rod. Dimensional deviations of the connecting rods 22 can therefore lead to uneven loads on the connecting rod Guide rods 22, the crankshafts 24 and the gears 27 and thus the ring gear 28. In order to absorb and dampen these loads, the ring gear 28 is elastically connected to the housing cover 40.
  • the elastic connection takes place with the help of approximately forty cylindrical connecting bolts 36 made of steel, which have one end 33 in blind holes 38 of the aluminum housing cover 40 and the other end 35 in engage axial bores 29 of the ring gear 28 made of steel.
  • the parts 33 of the bolts 36 which engage in the blind holes 38 of the housing cover 40 have a larger diameter than the parts 35 inserted with a fit into the bores 29 of the ring gear 28.
  • the parts 33 are also provided with a rubber-elastic coating 31 which, in the unloaded state, lies tightly against the wall and the bottom of the blind holes 38 and which is adapted to the loads occurring with regard to material thickness and Shore hardness.
  • the pitch circle diameter of the blind holes 38 in the housing cover 40 is chosen to be slightly smaller at ambient temperature than the pitch circle diameter of the bores 29 in the ring gear 28.
  • the elastic coating 31 occurs only in the cold state of the engine, which in the operating state due to the different Chen thermal expansion of the housing cover 40 and the ring gear 28 is compensated for and is therefore not superimposed with the running alternating load during operation.
  • the ring gear 28 is provided with a radially outwardly pointing spline 90 which meshes with an internal toothing 92 on the housing cover 40 with the release of a continuous gap.
  • damping layer 94 made of elastomeric material, which ensures an elastic connection between ring gear 28 and housing cover 40.
  • a damping layer 94 which is connected in the circumferential direction is provided, in which material which contracts in the event of load will expand primarily axially. In principle, however, it is possible to interrupt the damping layer 94 to form free spaces in the circumferential direction, so that the displaced material can penetrate the relevant cavities in the event of a load.
  • the damping layer must have a sufficient wall thickness, especially in the area of the tooth flanks, so that the shear forces that occur during shock loads can be absorbed.
  • a surface toothing between the ring gear 28 and the housing cover 40 which is not shown in the drawing and is bridged by a damping layer, is in principle also possible. If the rubber-elastic damping layer is vulcanized into the gap to produce a sufficient adhesive bond, toothing between the ring gear 28 and the housing cover 40 may also be dispensed with.
  • a resilient ring 96 which is inserted into a double-wide inner groove 98 of the housing 20 and is supported on an inner shoulder 100 of the ring gear 28, ensures that the ring gear 28 is held immovably in the axial direction and that between the fixed ring gear 28 and the end face part 19 of the rotor 10, an axial gap 102 remains free.
  • the pipe 47 is used to feed the cooling and lubricating oil axially, from which the oil is fed directly to the rotor bearings 42, 44 and the crankshaft bearings 56 and 58.
  • the oil reaches the cooling coils 57 arranged in the pistons 32 and the cooling channels 61 arranged in the outer wall 15 of the rotor 10.
  • the oil is circulated by means of a gear pump 55 designed as a sickle pump .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Rotary Pumps (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Transmission Devices (AREA)

Abstract

Dans des moteurs à combustion interne à pistons rotatifs qui fonctionnent selon le principe du chat et de la souris, le mouvement oscillant des pistons (32) est transmis par des bielles (22) à des vilebrequins (24) et des engrenages (27). Ces engrenages (27) s'engrènent avec une couronne de train planétaire (28), et le mouvement des pistons est ainsi converti en un mouvement rotatif (28) du rotor (10). La coïncidence statique de l'axe central du moyeu (30) reliant les pistons (32) s'effectue par les quatre bielles (22). Afin d'absorber les contraintes résultantes, des moyens élastiques de raccordement (36; 94) sont prévues entre la couronne de train planétaire (28) et le carter (11).
EP90902243A 1989-02-03 1990-01-10 Moteur a combustion interne a pistons rotatifs Withdrawn EP0456677A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3903197 1989-02-03
DE3903197A DE3903197A1 (de) 1989-02-03 1989-02-03 Rotationskolbenverbrennungskraftmaschine

Publications (1)

Publication Number Publication Date
EP0456677A1 true EP0456677A1 (fr) 1991-11-21

Family

ID=6373356

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90902243A Withdrawn EP0456677A1 (fr) 1989-02-03 1990-01-10 Moteur a combustion interne a pistons rotatifs

Country Status (7)

Country Link
US (1) US5324182A (fr)
EP (1) EP0456677A1 (fr)
JP (1) JPH0733774B2 (fr)
AU (1) AU5021690A (fr)
DE (3) DE3903197A1 (fr)
RU (1) RU2039878C1 (fr)
WO (1) WO1990008879A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991010811A1 (fr) * 1990-01-20 1991-07-25 Huschang Sabet Moteur a combustion interne a piston rotatif
DE9412914U1 (de) * 1994-08-10 1995-12-14 Pelz, Peter, 82547 Eurasburg Kolbenkühlsystem für eine Drehkolben-Arbeitsmaschine
US6210135B1 (en) 1997-11-20 2001-04-03 Valery Rassin Internal combustion rotary engine
WO2007132071A1 (fr) * 2006-05-12 2007-11-22 Mrcc Industries Sas Lubrification et refroidissement des machines a pistons rotatifs
DE102007012428A1 (de) * 2006-10-06 2008-04-10 Reyhani Design United Services Gmbh Umlaufkolben-Brennkraftmaschine
JP4969654B2 (ja) * 2006-10-06 2012-07-04 レイハニ デザイン ユナイテッド サービシーズ ゲーエムベーハー ロータリーピストン式内燃機関
DE102020131974B3 (de) * 2020-12-02 2022-03-10 Vibracoustic Se Baugruppe mit Entkopplungsring für ein Planetengetriebe und Planetengetriebe mit Entkopplungsring
CN217463124U (zh) * 2022-04-24 2022-09-20 杭州天铭科技股份有限公司 减速箱
US12431699B2 (en) * 2022-05-27 2025-09-30 Schaeffler Technologies AG & Co. KG Cable gland

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1060865A (en) * 1911-11-16 1913-05-06 August Sundh Combined friction and spur gearing.
US1874515A (en) 1930-04-11 1932-08-30 Continental Motors Corp Vibration damper
US1892793A (en) 1931-04-15 1933-01-03 Archibald A Warner Vibration damper
GB901960A (en) * 1960-03-01 1962-07-25 Leipzig Getriebewerke Improvements in or relating to planetary gear arrangements
SE7512492L (sv) * 1975-11-07 1977-05-08 Stal Laval Turbin Ab Anordning for momentoverforing i epicyklisk vexel
DE2902915A1 (de) * 1979-01-26 1980-07-31 Sabet Huschang Mittelachsige umlaufkolben-brennkraftmaschine
DE3006940C2 (de) * 1980-02-25 1983-01-27 Sabet, Huschang, Dipl-.Ing., 7000 Stuttgart Mittelachsige Umlaufkolben-Brennkraftmaschine
DE3516604A1 (de) * 1985-05-08 1986-11-13 Ube Industries, Ltd., Ube, Yamaguchi Planetengetriebe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9008879A1 *

Also Published As

Publication number Publication date
DE3903197A1 (de) 1990-08-09
JPH04501902A (ja) 1992-04-02
JPH0733774B2 (ja) 1995-04-12
US5324182A (en) 1994-06-28
DE4090110D2 (en) 1992-04-23
AU5021690A (en) 1990-08-24
WO1990008879A1 (fr) 1990-08-09
RU2039878C1 (ru) 1995-07-20
DE4090110C1 (de) 1999-12-09

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