EP0025071A1 - Machine motrice à piston alternatif - Google Patents

Machine motrice à piston alternatif Download PDF

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Publication number
EP0025071A1
EP0025071A1 EP79103361A EP79103361A EP0025071A1 EP 0025071 A1 EP0025071 A1 EP 0025071A1 EP 79103361 A EP79103361 A EP 79103361A EP 79103361 A EP79103361 A EP 79103361A EP 0025071 A1 EP0025071 A1 EP 0025071A1
Authority
EP
European Patent Office
Prior art keywords
piston engine
engine
piston
eccentric shaft
reciprocating
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Withdrawn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
EP79103361A
Other languages
German (de)
English (en)
Inventor
Friedhelm Schwarz
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
Priority to EP79103361A priority Critical patent/EP0025071A1/fr
Publication of EP0025071A1 publication Critical patent/EP0025071A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B9/00—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups
    • F01B9/04—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups with rotary main shaft other than crankshaft
    • 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
    • F02B57/00—Internal-combustion aspects of rotary engines in which the combusted gases displace one or more reciprocating pistons
    • F02B57/08—Engines with star-shaped cylinder arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B9/00—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups
    • F01B9/04—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups with rotary main shaft other than crankshaft
    • F01B9/042—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups with rotary main shaft other than crankshaft the connections comprising gear transmissions
    • F01B2009/045—Planetary gearings
    • 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
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B2075/1804—Number of cylinders
    • F02B2075/1816—Number of cylinders four

Definitions

  • the invention relates to a reciprocating piston engine with cylindrical rotating pistons and rotating cylinders according to the preamble of the main claim.
  • the reciprocating piston engine or Otto engine with piston, piston connecting rod and crankshaft is known, the combustion of the compressed fuel-air mixture being initiated by time-controlled spark ignition.
  • These engines work according to the four-stroke principle, i.e. H. the individual phases of suction, compression, expansion and ejection run separately and in succession.
  • the reciprocating piston engine with the reciprocating movement has the disadvantage that a complete mass balance is not possible.
  • the rotary piston machine which also works according to the four-stroke principle, that is to say also has the individual phases of suction, compression, expansion and ejection, which run separately from one another. and run sequentially. With these engines no means are necessary to convert the reciprocating movement into a rotating movement.
  • the rotary piston engines have the disadvantage that a reliable effective sealing system is very difficult to achieve and with complex means.
  • the invention has for its object to provide a reciprocating piston engine that has a reliable effective sealing system according to the piston with a circular cross-section and allows a complete mass balance.
  • the reciprocating piston engine according to the invention has the advantage over the classic reciprocating piston engine that a complete mass balance is achieved. In addition, a high gas throughput is achieved in relation to the construction volume.
  • 1.2 is a Doppelcxzenterwelle 30 with two 180 ° offset eccentrics in a housing 60, which consists of side windows 20 and a circular outer ring 10, so that the center offset of the shaft bearing corresponds exactly to the eccentricity of the eccentric shaft.
  • a cylinder body 40 with two cylinder bores offset by 90 is also mounted in the side windows 20 of the housing 60. However, this storage is arranged centrally to the housing.
  • two pistons 50 are guided, which are shaped so that the piston ends are suitable for receiving normal piston rings.
  • the central part of the piston 50 is advantageously designed so that it is suitable for receiving the eccentric bearing and only a slight center offset of the two pistons is required.
  • the dead center is given at an angle ⁇ of 180 0th
  • the reciprocating piston engine also works according to the displacement system, in which depending on the direction of rotation, compression takes place on one side and expansion of the enclosed stroke volume on the other side.
  • the cylinder body 40 can be used directly to control the gas exchange.
  • planetary piston engine for example as a compressor, air motor or as an internal combustion engine
  • openings for the gas inlet and the gas outlet are to be provided in the outer ring 10 of the housing 60 in accordance with the work flow, the control times and the desired compression or expansion conditions.
  • the full cylinder head surface is available, whereby the two-stroke principle is system-dependent.
  • the advantage of the planetary piston engine is that exhaust, purging and charging take place in succession as in the four-stroke engine.
  • no effective volume is lost through the use of the cylinder head surface as a gas passage.
  • the planetary piston engine is used as an internal combustion engine, then both the principle of internal combustion as with a gasoline or diesel engine and the principle of external combustion, e.g. for the turbine and the swashplate motor.
  • the non-contact seal requires certain minimum speeds, since the gap losses, which are dependent on the pressure gradient, account for too high a percentage of the gas volume that is passed through at a low throughput volume, so that the efficiency is then adversely affected.
  • the cylinder chambers must be secured against gas loss by a sliding head seal.
  • a special seal is recommended, which has already been used for a special type of radial engine, the so-called Sklenan engine.
  • the inner surface of the outer housing ring 10 is spherical, and the sealing rings arranged around the cylinder bores on the sealing surface are also spherical. Due to the system-related axial center movement of the cylinder bores to the center of the spherical inner surface of the housing in the planetary piston engine, the sealing rings are forced to slide, so-called lapping movement, so that the entire sealing surface is subject to relatively favorable, since even, wear conditions.
  • the sealing ring itself is not slotted and can be designed according to the known principles of pressure relief, so that the gas forces do not cause a specific pressure on the slideway that is higher than that required for the seal.
  • a second, but slotted ring which is arranged under or in the aforementioned sealing ring and is designed as a normal piston ring, ensures that the sliding sealing ring is sealed against the cylinder bore.
  • the planetary piston engine has the advantage over the turbine due to the displacement principle used that gas throughput and speed are linearly related to one another, so that there is no risk of pumping, which can occur in turbo compressors under different load conditions.
  • the speed range is much lower than that of the turbines, so that the use of gear drives for further speed reduction is easily possible.
  • higher pressure drops can be easily withstood in one step.
  • a very particularly significant advantage is the fact that, due to the natural cooling through the alternation of hot and cold cycles, as in the classic reciprocating piston engines, the propellant gases can be run at higher temperatures, which has a favorable effect on the thermal efficiency. It is also advantageous for the cooling that only one surface of the engine parts is swept by the hot propellant gases, so that the counter surfaces are accessible for cooling by air, oil or water. In addition, as with the turbine, the hot propellant gases can be localized by the use of cold blocking air in such a way that overheating of the engine is prevented.
  • Such an interconnection can significantly improve the specific power-to-weight ratio and fuel consumption.
EP79103361A 1979-09-08 1979-09-08 Machine motrice à piston alternatif Withdrawn EP0025071A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP79103361A EP0025071A1 (fr) 1979-09-08 1979-09-08 Machine motrice à piston alternatif

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP79103361A EP0025071A1 (fr) 1979-09-08 1979-09-08 Machine motrice à piston alternatif

Publications (1)

Publication Number Publication Date
EP0025071A1 true EP0025071A1 (fr) 1981-03-18

Family

ID=8186190

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79103361A Withdrawn EP0025071A1 (fr) 1979-09-08 1979-09-08 Machine motrice à piston alternatif

Country Status (1)

Country Link
EP (1) EP0025071A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2568949A1 (fr) * 1984-06-29 1986-02-14 Ilka Luft & Kaeltetechnik Mecanisme a manivelle pour machines a pistons, en particulier pour compresseurs a piston pour refrigerant
DE3919168A1 (de) * 1989-06-12 1990-12-13 Josef Gail Kolbenmaschine
WO1990015918A1 (fr) * 1989-06-12 1990-12-27 Josef Gail Machine a piston
US5123334A (en) * 1988-01-08 1992-06-23 H.P. Van Der Waal B.V.I.O. Pump or motor with secondary piston connected to guide member of a main piston
WO1995006195A1 (fr) * 1993-08-24 1995-03-02 Logic Innovationssysteme Gmbh Moteur a combustion interne a piston rotatif
EP0961016A3 (fr) * 1998-05-29 2000-09-20 Antonios Parathiras Moteur à combustion interne
US7975667B2 (en) * 2008-05-12 2011-07-12 Michael Inden Crankshaft-free drive shaft and piston assembly of a split-cycle four-stroke engine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2216809A1 (de) * 1971-04-07 1972-10-19 Esso Research and Engineering Co , Linden, NJ (VStA) Kolbenmaschine
DE2339958A1 (de) * 1972-08-12 1974-02-28 Anidyne Corp Maschine fuer den betrieb als verbrennungsmotor, verdichter, pumpe oder druckmittelbetaetigter motor
DE2502709A1 (de) * 1974-01-24 1975-07-31 Peugeot Viertakt-verbrennungsmotor mit in einem gehaeuse umlaufenden radialzylindern
US4086038A (en) * 1974-01-22 1978-04-25 Jurgen Hans Wilhelm Lambrecht Rotary piston machine of trochoidal construction

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2216809A1 (de) * 1971-04-07 1972-10-19 Esso Research and Engineering Co , Linden, NJ (VStA) Kolbenmaschine
DE2339958A1 (de) * 1972-08-12 1974-02-28 Anidyne Corp Maschine fuer den betrieb als verbrennungsmotor, verdichter, pumpe oder druckmittelbetaetigter motor
US4086038A (en) * 1974-01-22 1978-04-25 Jurgen Hans Wilhelm Lambrecht Rotary piston machine of trochoidal construction
DE2502709A1 (de) * 1974-01-24 1975-07-31 Peugeot Viertakt-verbrennungsmotor mit in einem gehaeuse umlaufenden radialzylindern

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2568949A1 (fr) * 1984-06-29 1986-02-14 Ilka Luft & Kaeltetechnik Mecanisme a manivelle pour machines a pistons, en particulier pour compresseurs a piston pour refrigerant
US5123334A (en) * 1988-01-08 1992-06-23 H.P. Van Der Waal B.V.I.O. Pump or motor with secondary piston connected to guide member of a main piston
DE3919168A1 (de) * 1989-06-12 1990-12-13 Josef Gail Kolbenmaschine
WO1990015918A1 (fr) * 1989-06-12 1990-12-27 Josef Gail Machine a piston
US5375564A (en) * 1989-06-12 1994-12-27 Gail; Josef Rotating cylinder internal combustion engine
WO1995006195A1 (fr) * 1993-08-24 1995-03-02 Logic Innovationssysteme Gmbh Moteur a combustion interne a piston rotatif
EP0961016A3 (fr) * 1998-05-29 2000-09-20 Antonios Parathiras Moteur à combustion interne
US7975667B2 (en) * 2008-05-12 2011-07-12 Michael Inden Crankshaft-free drive shaft and piston assembly of a split-cycle four-stroke engine

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

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Effective date: 19820222