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EP1009914A1 - Machine a piston rotatif - Google Patents

Machine a piston rotatif

Info

Publication number
EP1009914A1
EP1009914A1 EP98941136A EP98941136A EP1009914A1 EP 1009914 A1 EP1009914 A1 EP 1009914A1 EP 98941136 A EP98941136 A EP 98941136A EP 98941136 A EP98941136 A EP 98941136A EP 1009914 A1 EP1009914 A1 EP 1009914A1
Authority
EP
European Patent Office
Prior art keywords
housing
rotor
axis
slide
wall
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.)
Granted
Application number
EP98941136A
Other languages
German (de)
English (en)
Other versions
EP1009914B1 (fr
Inventor
Michael Rechberger
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 EP1009914A1 publication Critical patent/EP1009914A1/fr
Application granted granted Critical
Publication of EP1009914B1 publication Critical patent/EP1009914B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • F01C21/04—Lubrication
    • 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
    • F01C21/10—Outer members for co-operation with rotary pistons; Casings
    • F01C21/104—Stators; Members defining the outer boundaries of the working chamber
    • F01C21/106—Stators; Members defining the outer boundaries of the working chamber with a radial surface, e.g. cam rings

Definitions

  • the invention relates to a rotary piston machine in which a rotor rotates in a housing and radially displaceable slides form variable-volume chambers between the housing and the rotor, an even number of slides being provided and diametrically opposed slides being combined to form a rigid unit are.
  • Such a rotary piston machine is known from GB 430 715 B.
  • the housing has the shape of a Reuleaux triangle and the rotor is arranged centrally in this triangle.
  • the advantage of such an arrangement compared to the use of one-sided, spring-loaded slide is that in the course of the rotation of the rotor, the housing walls only have to overcome the inertial mass of the slide for its reciprocating movement, while the centrifugal acceleration due to the combination of diametrically opposite slides is at least essentially canceled out and spring forces, as must always be provided in the case of individual slides in order to press the sliders against the housing wall, are eliminated at all.
  • a rotary lobe machine of the type mentioned at the outset is therefore subjected to significantly reduced wear compared to other rotary lobe machines with individually movable slides.
  • DD-33 914 A in which the housing has a circular cross section and the rotor arranged eccentrically in the housing also essentially has a circular shape, but with recesses, the in cross section are delimited by a circular arc section from which the rotor is cut out in order to increase the size of the chambers which form.
  • the (four) slides are pressed by springs from the rotor outwards against the casing wall, which together with the centrifugal acceleration leads to high contact pressures and high wear.
  • the invention aims to remedy this situation and to provide a rotary piston machine of the type defined in the introduction, in which each slide is only reciprocated once in the course of one revolution of the rotor.
  • r ( ⁇ ) ⁇ from 2 / [a 2 cos 2 (l ( ⁇ + ⁇ / 2)) + b 2 sin 2 (1 ( ⁇ + ⁇ / 2))] ⁇ l / 2
  • Embodiments of the invention relate to the formation of the slide and their guidance in the rotot or along the housing.
  • FIG. 4 shows a section through a turbine or fan
  • FIG. 5 shows a section through a 2-stage rotary piston internal combustion engine
  • FIG. 6 shows an axial section through a rotary piston internal combustion engine
  • FIG. 7 8 shows a section through a rotary piston internal combustion engine
  • FIG. 8 shows a slide in section, top view and side view
  • FIG. 9 shows a spring clip in front view, in top view and in side view
  • FIGS. 1 to 3 show different designs of housing shapes that can be used according to the invention depending on the ratio of parameters a and b.
  • the coordinate systems used, the south pole S and the distances b and d are entered, where b is fixed at 1, since the shape of the curve depends only on the ratio a / b and thus also according to the above relationship a / d.
  • Useful ratios a / b are between 1.0 and 2.5, preferably between 1.25 and 2.0, where a and b have the meaning given above.
  • Fig. 4 shows a section normal to the axis of rotation of a turbine according to the invention or an inventive
  • FIG. 5 shows a section normal to the axis of rotation of a rotary piston internal combustion engine.
  • An intake opening 17 of a compressor stage is shown schematically in the housing wall 32, furthermore an overflow duct 18 which leads from the pressure side of the compressor stage to the intake side of the engine stage and there an injection nozzle 20 is introduced in the area of the expansion chamber.
  • the slides 1 of the compressor stage are again guided in the oil in the rotor 19; for slides 21 of the rotor 22 in the combustion chamber, this is not possible for thermal reasons.
  • FIG. 6 shows a section through the parallel rotor axes of the two rotors 19, 22 of FIG. 5.
  • the rounded corner design of the housing chamber can be seen from this figure.
  • the bearings 29 for the rotors 19, 22 and the toothed wheels 31 which drive the compressor rotor 19 are entered.
  • Fig. 7 shows a section normal to the rotor axes of a rotary piston internal combustion engine.
  • a pre-compressor outlet opening 26 opens into an expansion chamber 27, which ends in the discharge nozzle 28.
  • the schematically drawn intake opening 17 and the overflow channel 18, which leads from the pre-compressor stage into the expansion stage, can also be seen.
  • the guided in the compressor rotor 19 Sliders 1 are preferably again guided in the oil, while this is not possible in the case of the sliders in the rotor 22 which are thermally highly loaded by the combustion process.
  • FIG. 8 shows a slide 1 which is preferred according to the invention in section, in side view and in plan view, grooves 3 being visible, in which spring clips 4, one of which is shown in FIG. 9, can be used.
  • oil channels 2 are provided, which, due to the centrifugal acceleration, transport oil to the outside in the region of its axis of rotation, which is supplied to the rotor in which the slide 1 is used, and there the slide 1 or the spring clip 4 during its rotation lubricates and cools along the inside wall of the housing.
  • FIG. 9 shows a spring clip 4 which can be inserted into the grooves 3 of a slide 1 and which is provided with lubrication openings 5 from which the lubricating fluid can escape.
  • the arrows indicate the direction of the (slight) elastic deformation due to the centrifugal acceleration, which improves the seal on the inner wall of the housing.
  • the webs 34 between the two ends of the slide 1 are offset in the individual sliders of a rotor by at least the web width, so that the individual sliders are arranged in the rotor so as to be radially movable past one another.
  • Fig. 10 shows a rotor for oil-lubricated slide 1, which is therefore not thermally high load, otherwise the oil will become blocked.
  • Liquids other than 01 can also be used for lubrication, whereby both 01 and the other liquids can be used for cooling.
  • the slide can be cooled by liquids such as water and Lubrication is important, especially since the oil contamination can no longer be removed from the vacuum.
  • Such a rotor preferably consists of rotor segments 7, which are held together by rotor side walls 6. Ellipse rings 13 (FIG. 11) are inserted into grooves 8. The grooves 9 receive segment seals 15 (FIG. 13), the oil supply for the slide 1 or the spring clip 4 takes place through an inlet opening 10 in the rotor shaft.
  • the 11 shows an ellipse ring 13 in a side view and a top view.
  • the direction of pressure is indicated by arrows.
  • the ellipse ring 13 has an opening 16 for pressure and expansion compensation.
  • the ellipse ring 13 serves to seal the slide 1 from the rotor.
  • two such ellipse rings are provided on each side of the rotor for each of the slide 1, thus four ellipse rings per slide.
  • FIG. 12 A rotor segment in front and side view can be seen from FIG. 12, from which the grooves 8 for the elliptical rings 13 and the grooves 9 for the segment seal 15 (FIG. 13) can also be seen.
  • the holes 14 are used to mount the side windows 6.
  • a segment seal 15 is shown in front and side view. This segment seal 15 seals the rotor from the side housing wall and is designed to be self-pressing.
  • FIG. 14 shows a thermally highly resilient rotor in axial section, a combustion chamber trough 26 being provided in each segment.
  • a single rotor segment is shown in front and side view in FIG. 15, FIG. 16 shows an associated slide 21, which differs from the slide 1 due to the lack of oil supply and thus of the lubrication differs.
  • the webs 34 are arranged as in the slide 1 (FIG. 8).
  • the method of operation of the rotary lobe machine according to the invention is the same as that of the conventional rotary lobe machines, except for the dynamic improvements in the slide movements and the special design of the slide, which is possible as a result, since the operation has not changed compared to the prior art.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary Pumps (AREA)
  • Hydraulic Motors (AREA)

Abstract

L'invention concerne une machine à piston rotatif, dans laquelle un rotor tourne dans une cage, et des tiroirs déplaçables radialement dans le rotor forment des chambres à volume variable entre la cage et le rotor. Un nombre pair de tiroirs est prévu et des tiroirs diamétralement opposés forment une unité rigide. L'invention est caractérisée en ce que le rotor est disposé de manière excentrique dans la cage et en ce que la paroi intérieure de cette cage satisfait à l'équation suivante, exprimée en coordonnées polaires avec le centre dans l'axe du rotor: r(γ) = {a?2b2/[a2cos2¿(l(γ+π/2)) + b2sin2(1(γ+π/2))]}1/2, dans laquelle b est la plus courte distance entre l'axe du rotor et la cage dans le pôle sud (S), et a est défini par la formule a(d,b) = {[3(d/2)?4 - 2b2(d/2)2¿]/[2(d/2)?2 - b2]}1/2¿, d étant la longueur du tiroir et l étant défini par la formule l = 2/π arccos({[a?2 - (a4+b4-a¿2b?2)1/2]/(a2-b2)}1/2¿).
EP98941136A 1997-08-28 1998-08-27 Machine a piston rotatif Expired - Lifetime EP1009914B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT0144697A AT413423B (de) 1997-08-28 1997-08-28 Drehkolbenmaschine
AT144697 1997-08-28
PCT/AT1998/000204 WO1999011907A1 (fr) 1997-08-28 1998-08-27 Machine a piston rotatif

Publications (2)

Publication Number Publication Date
EP1009914A1 true EP1009914A1 (fr) 2000-06-21
EP1009914B1 EP1009914B1 (fr) 2002-07-31

Family

ID=3514072

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98941136A Expired - Lifetime EP1009914B1 (fr) 1997-08-28 1998-08-27 Machine a piston rotatif

Country Status (8)

Country Link
US (1) US6227832B1 (fr)
EP (1) EP1009914B1 (fr)
JP (1) JP2001515166A (fr)
AT (1) AT413423B (fr)
AU (1) AU8963898A (fr)
DE (1) DE59805027D1 (fr)
ES (1) ES2181259T3 (fr)
WO (1) WO1999011907A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018123016A1 (de) 2017-09-21 2019-03-21 Bitter Engineering & Systemtechnik Gmbh Drehkolbenmaschine

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2833048B1 (fr) 2001-11-30 2004-01-16 Rene Snyders Machine volumetrique rotative fonctionnant sans frottement dans le volume de travail et supportant des pressions et des temperatures elevees
RU2283961C1 (ru) * 2005-01-11 2006-09-20 Сергей Геннадьевич Чиненов Роторно-пластинчатая машина
DE102008057227A1 (de) * 2008-11-04 2010-05-12 Joma-Hydromechanic Gmbh Flügel für eine Einflügelvakuumpumpe
US8539931B1 (en) * 2009-06-29 2013-09-24 Yousry Kamel Hanna Rotary internal combustion diesel engine
DE102020107485A1 (de) * 2020-03-18 2021-09-23 Schwäbische Hüttenwerke Automotive GmbH Geräuschreduzierte Rotationspumpe

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DE165176C (fr) *
DD33914A (fr)
US2013916A (en) * 1932-09-24 1935-09-10 Jerome O Connor Internal combustion rotary engine
US2347944A (en) * 1942-05-22 1944-05-02 Fowler Elbert Rotary pump
US2985110A (en) * 1956-11-19 1961-05-23 Bendix Corp Pump construction
US3499600A (en) * 1968-03-21 1970-03-10 Whirlpool Co Rotary compressor
GB1241841A (en) * 1968-08-06 1971-08-04 Saniosh Kumar Banerjea A rotary internal combustion engine
AU5157373A (en) * 1972-02-02 1974-08-01 Noel Goulter James IMPROVED ROTARY MOTOR Provisional Specifi OR PUMPING UNIT cation
US3785758A (en) * 1972-04-24 1974-01-15 Abex Corp Vane pump with ramp on minor diameter
DE2249591C3 (de) * 1972-10-10 1975-08-14 Danfoss A/S, Nordborg (Daenemark) Fördermengenregelbare Rotationskolbenpumpe
GB1426126A (en) * 1973-02-16 1976-02-25 Komiya S Movable vane type compressor
JPS5797094A (en) * 1980-12-09 1982-06-16 Nippon Soken Inc Rotary compressor
US4484873A (en) * 1980-12-09 1984-11-27 Nippon Soken, Inc. Through vane type rotary compressor with specific chamber configuration
JPS57206788A (en) * 1981-06-15 1982-12-18 Mitsubishi Heavy Ind Ltd Sliding-vane type rotary compressor
JPS60192892A (ja) * 1984-03-14 1985-10-01 Nippon Soken Inc ベ−ン型圧縮機
DE3427030A1 (de) * 1984-07-21 1986-01-23 Martin 8900 Augsburg Eberlein Turbine
SU1321919A1 (ru) * 1985-10-22 1987-07-07 Каунасский Политехнический Институт Им.Антанаса Снечкуса Ротационный пластинчатый компрессор
JPS62271985A (ja) * 1986-05-20 1987-11-26 Matsushita Electric Ind Co Ltd 密閉型回転式圧縮機
JPH01125588A (ja) * 1987-11-11 1989-05-18 Tama Seisakusho:Kk 回転圧縮機
DE3824882A1 (de) * 1988-07-19 1990-01-25 Mannesmann AG, 4000 Düsseldorf Fluegelzellenverdichter
FR2711395B1 (fr) * 1993-10-20 1997-05-23 Joel Arnaud Moteur ou pompe universelle pour tous fluides et surtout la vapeur.

Non-Patent Citations (1)

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Title
See references of WO9911907A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018123016A1 (de) 2017-09-21 2019-03-21 Bitter Engineering & Systemtechnik Gmbh Drehkolbenmaschine

Also Published As

Publication number Publication date
WO1999011907A1 (fr) 1999-03-11
DE59805027D1 (de) 2002-09-05
AU8963898A (en) 1999-03-22
EP1009914B1 (fr) 2002-07-31
JP2001515166A (ja) 2001-09-18
US6227832B1 (en) 2001-05-08
AT413423B (de) 2006-02-15
ES2181259T3 (es) 2003-02-16
ATA144697A (de) 2005-07-15

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