EP0756068A2 - Machine rotative à combustion interne - Google Patents

Machine rotative à combustion interne Download PDF

Info

Publication number
EP0756068A2
EP0756068A2 EP96110913A EP96110913A EP0756068A2 EP 0756068 A2 EP0756068 A2 EP 0756068A2 EP 96110913 A EP96110913 A EP 96110913A EP 96110913 A EP96110913 A EP 96110913A EP 0756068 A2 EP0756068 A2 EP 0756068A2
Authority
EP
European Patent Office
Prior art keywords
piston
internal combustion
combustion engine
housing
carrier
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Withdrawn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
EP96110913A
Other languages
German (de)
English (en)
Other versions
EP0756068A3 (fr
Inventor
Wilfried Ball
Peter Rönnberg
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 EP0756068A2 publication Critical patent/EP0756068A2/fr
Publication of EP0756068A3 publication Critical patent/EP0756068A3/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four

Definitions

  • the invention relates to a rotary piston internal combustion engine according to the preamble of the main claim.
  • Such rotary piston internal combustion engines are provided with a control device which controls the rotary movement of the two piston carriers in such a way that working spaces formed between two different piston carriers belonging to adjacent pistons within the cylinder space are alternately enlarged and reduced during the rotational movement of the pistons and that during the non-uniform rotary movement of the Piston carrier performs a uniform rotary movement.
  • the angular position of the enlarging and reducing spaces relative to the cylinder space is fixed.
  • the cylinder space is provided with at least one inlet opening in the area of an enlarging space and at least one outlet opening in the area of a shrinking space, between which an ignition area is formed in the cylinder space, within which the working spaces circulating between the pistons assume a minimum volume and in them contained ignitable mixture ignites.
  • Such a rotary piston internal combustion engine is known from US Pat. No. 3,890,939.
  • the seal between the housing and the piston carriers is provided by sealing rings, which are each arranged in opposing annular grooves formed in the housing and the adjacent piston carrier or the two piston carriers, and depending on the radial pressure difference on the radially outer or radially inner surfaces of these ring grooves.
  • the seal achieved is heavily dependent on tolerances.
  • the invention has for its object to provide a generic rotary piston internal combustion engine, the cylinder chamber is reliably sealed.
  • a rotary piston internal combustion engine has a housing, designated overall by 2, which consists of a motor housing 4 and a gear housing 6.
  • the motor housing consists of two shells 4a, 4b, which enclose between them an inwardly open annular cylinder space 8, and whose shell 4a is blocked with the transmission housing 2.
  • a total of 4 pistons, not shown in FIG. 1, circulate in the cylinder chamber 8, two of which are fastened diametrically opposite one another to one of two piston carriers 10 and 12.
  • the piston carriers are provided towards the cylinder chamber 8 with such peripheral surfaces that they complement the inner surface of the cylinder chamber to a circular cross-section, the one piston carrier forming a running surface for the pistons not attached to it.
  • the piston carrier 12 is connected in a rotationally fixed manner to a hollow shaft 14 which projects into the gear housing 6 and has a radial arm 16 which is connected to a crankshaft 20 via a connecting rod 18.
  • piston carrier 10 is rigidly attached to a shaft 22 which extends within the hollow shaft 14 into the gear housing 6 and ends in a radial arm 24 which is connected to a crankshaft 28 via a connecting rod 26.
  • crankshafts 26 and 28 are mounted in a crankcase 30 and end in gearwheels 32, 34 connected to them in a rotationally fixed manner, which mesh with a gearwheel 26 fixed to the gearbox housing.
  • the crankcase 30 is rotatable within the gear housing 6 and extends with an output shaft 38 through the gear housing.
  • the number of teeth of the gears 32, 34 and 36 are matched to one another such that the crankshafts 20 and 28 rotate during one revolution of the crankcase 30 Turn twice so that each working space formed between the pistons in the cylinder space 8 increases and decreases twice in the course of a complete revolution, so that a four-stroke working method can be carried out in the presence of an intake duct and an exhaust duct, not shown.
  • FIG. 3 shows a view according to FIG. 1 from the left with the shell 4a partially cut open.
  • the two piston carriers 10 and 12 are visible, the diameter of the piston carrier 12 being shown somewhat enlarged, and one each of the pistons 38 and 40 fastened to the piston carriers.
  • the working space 42 enclosed between the pistons 38 and 40 is just minimal in size and is located in the area of a spark plug 44, which is provided when the internal combustion engine is operating as a gasoline engine.
  • Fig. 4 shows the formation of a mechanical seal, as it can be used at points designated by X in Fig. 1 between two movable components, that is, the housing shell and piston carrier or the two piston carriers.
  • the seal sits between the shell 4a and the piston carrier 10.
  • the shell 4a is provided with an annular groove 46, in which a sealing ring 47, which acts as a sliding ring, is arranged, which over a large area rests against the piston carrier 10 in the annular groove 46.
  • blind holes 48 are distributed over the circumference of the annular groove 46, in each of which a spring 50 is arranged which presses a pin 52 into a recess in the sealing ring 47 . It goes without saying that a pin does not have to be present in each of the blind holes, since the rotation lock is already achieved, for example, with three pins distributed at equal angular intervals.
  • a plurality of springs 50 for example 18, evenly over the circumference of the annular groove 46.
  • the sealing ring 47 is provided with a circumferential annular groove 58, into which two spring rings 60, 62 which act as sealing rings are inserted such that their gaps are mutually rotated, for example, by 180 °.
  • the sealing rings 60, 62 can be held in a rotationally fixed manner by means of suitable means, for example pins or bulges of the base of the annular groove 58.
  • the arrangement of the sealing rings 60, 62 on the radially outer side has the advantage that lubricant coming from the shafts 14, 22 or according to FIG. 4 can penetrate into the gap between the sealing ring 47 and the shell 4a, so that it additionally supports the installation of the sealing ring 47 on the piston carrier 10.
  • the piston carrier 10 is fastened to the shaft 22 via an internal toothing.
  • the piston carrier 10 comprises two spokes 64, of which only the upper spoke with the piston 38 formed in one piece with it is shown.
  • a ring part 66 is attached to the spoke 64, which rotates together with the piston carrier 22 and, together with a corresponding ring part 68 fastened to the other piston carrier, closes off the cylinder space 8 in the direction of the shaft 22.
  • the piston 38 is arranged eccentrically to the cylinder space 8 when the engine is not in the operating state, so that it moves into a central position when heated due to the expansion of its material and the material of the spoke 64.
  • the seal between the piston 38 and the inner wall of the cylinder space 8 is taken over by piston rings 70.
  • the piston carrier 10, 12 consist of a material with a lower coefficient of thermal expansion than the material of the motor housing 4, since the motor housing 4 can be directly water-cooled, whereas the piston carrier are difficult to access for water cooling.
  • the illustrated embodiment of the piston carrier 10 with the spokes 64 and the ring part 66 has the following advantage:

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
EP96110913A 1995-07-27 1996-07-05 Machine rotative à combustion interne Withdrawn EP0756068A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19527396 1995-07-27
DE19527396A DE19527396C2 (de) 1995-07-27 1995-07-27 Drehkolben-Brennkraftmaschine

Publications (2)

Publication Number Publication Date
EP0756068A2 true EP0756068A2 (fr) 1997-01-29
EP0756068A3 EP0756068A3 (fr) 1998-01-28

Family

ID=7767885

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96110913A Withdrawn EP0756068A3 (fr) 1995-07-27 1996-07-05 Machine rotative à combustion interne

Country Status (3)

Country Link
US (1) US5740765A (fr)
EP (1) EP0756068A3 (fr)
DE (1) DE19527396C2 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5996538A (en) * 1998-06-03 1999-12-07 Rocha; Octavio Two-cycle internal combustion engine and method of operation
US6289867B1 (en) * 1999-03-31 2001-09-18 Cummins Engine Company, Inc. Rotary engine
NZ513155A (en) * 2001-07-25 2004-02-27 Shuttleworth Axial Motor Compa Improvements relating to axial motors
RU2343290C2 (ru) * 2003-09-15 2009-01-10 Вячеслав Иванович Коваленко Роторный двигатель внутреннего сгорания
US6895922B1 (en) 2004-08-09 2005-05-24 Gloria Snowden-Wood Rotary opposed piston engine
RU2281400C1 (ru) * 2005-02-17 2006-08-10 Государственное образовательное учреждение высшего профессионального образования "Тюменский государственный нефтегазовый университет" Роторная машина
US7600490B2 (en) * 2006-05-30 2009-10-13 Reisser Heinz-Gustav A Internal combustion engine
US7730869B2 (en) * 2007-04-13 2010-06-08 Yan Li Housing wheel engine
EP2643553B1 (fr) 2010-11-25 2017-03-29 AVL List GmbH Machine à piston rotatif, en particulier moteur à piston rotatif

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1778182A (en) * 1927-01-03 1930-10-14 Frank A Bullington Annular-cylinder combustion engine
US1994858A (en) * 1932-07-29 1935-03-19 Stromberg Seal for rotary engines and the like
DE1450405A1 (de) * 1964-03-26 1969-03-06 Sabet Dipl Ing Huschang Kreisringfoermiges Dichtelement,insbesondere fuer Rotationskolben-Verbrennungskraftmaschinen
US3516392A (en) * 1968-07-01 1970-06-23 Bruce Wiley Oscillating piston internal combustion engine
US3644069A (en) * 1969-08-11 1972-02-22 George R Stewart Rotary engine construction
US3854457A (en) * 1971-10-11 1974-12-17 Taurozzi A Rotary engine
US3890939A (en) * 1973-03-22 1975-06-24 Alex A Mcintosh Rotary engine with improved seal and timing mechanism providing linear acceleration between pistons during the power stroke
US4072447A (en) * 1973-07-02 1978-02-07 Peter Gaspar Alternating piston rotary apparatus
JPS54160954A (en) * 1978-06-12 1979-12-20 Arai Pump Mfg Seal ring
US4951615A (en) * 1989-08-17 1990-08-28 Pahis Nikolaos S Motion-conversion mechanism for a four stroke oscillating piston internal combustion engine
US5222463A (en) * 1992-07-23 1993-06-29 Monti Farrell Oscillating piston engine
US5203287A (en) * 1992-08-07 1993-04-20 Tommy Hasbun Oscillating piston engine
US5363813A (en) * 1993-06-30 1994-11-15 Conrad Paarlberg Dual rocker shaft internal combustion diesel engine

Also Published As

Publication number Publication date
EP0756068A3 (fr) 1998-01-28
DE19527396C2 (de) 1998-11-12
DE19527396A1 (de) 1997-02-06
US5740765A (en) 1998-04-21

Similar Documents

Publication Publication Date Title
DE10230108B4 (de) Vorrichtung zum Verstellen des Hubs eines von einer Nockenwelle betätigten Ventils
EP0599125B1 (fr) Propulsion d'un arbre d'équilibrage d'un moteur en V
DE19646930A1 (de) Verbesserter Dualkompressions- und Dualexpansionsmotor
DE68903984T2 (de) Kolbenmaschine mit rotierendem Zylinderblock.
DE60204691T2 (de) Stern-verbrennungsmotor mit schwimmendem ausgeglichenem kolben
DE68914852T2 (de) Brennkraftmaschine mit rohrförmigem drehschieber.
DE19527396C2 (de) Drehkolben-Brennkraftmaschine
DE2921291A1 (de) Kolben-zylinder-maschine
DE3150654C2 (de) Rotationskolben-Brennkraftmaschine
DE2215007A1 (de) Antriebsmaschine, insbesondere brennkraftmaschine, mit kurbelwellenfreier kraftuebertragung
WO1995034749A1 (fr) Moteur a combustion interne
EP0548297A1 (fr) Moteur a pistons oscillants.
DE2412438A1 (de) Rotations-druckvorrichtung fuer fluide
WO1988008483A1 (fr) Moteur a combustion interne a piston rotatif
EP0217813B1 (fr) Machine a piston rotatif avec vitesses de rotation variables periodiquement
EP0214959A1 (fr) Moteur a combustion interne a piston rotatif
DE2153946A1 (de) Motor
DE3205207C2 (de) Rotationskolben-Brennkraftmaschine mit exzentrisch gelagertem Kolben
DE3923906A1 (de) Brennkraftmaschine
DE885023C (de) Brennkraftmaschine mit Zylindern, deren Achsen sich parallel zur Achse der Maschinenwelle erstrecken
EP0345745A2 (fr) Moteur à piston rotatif
DE391397C (de) Verbrennungsmotor mit zwei in einer Achse angeordneten Zylindern
DE3913862A1 (de) Verbrennungsmotor
DE9320837U1 (de) Brennkraftmaschine, insbesondere Brennkraftmaschine mit umlaufenden Kolben als 3-Scheiben-Kreiskolbenmotor
DE69408636T2 (de) Viertaktbrennkraftmaschine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE ES FR GB IT

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE ES FR GB IT

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19980729