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WO2008065081A3 - Free-piston engine - Google Patents

Free-piston engine Download PDF

Info

Publication number
WO2008065081A3
WO2008065081A3 PCT/EP2007/062822 EP2007062822W WO2008065081A3 WO 2008065081 A3 WO2008065081 A3 WO 2008065081A3 EP 2007062822 W EP2007062822 W EP 2007062822W WO 2008065081 A3 WO2008065081 A3 WO 2008065081A3
Authority
WO
WIPO (PCT)
Prior art keywords
free
piston engine
compressor
piston
reciprocated
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.)
Ceased
Application number
PCT/EP2007/062822
Other languages
German (de)
French (fr)
Other versions
WO2008065081A2 (en
Inventor
Bernd Jung
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 EP07847354A priority Critical patent/EP2106495A2/en
Publication of WO2008065081A2 publication Critical patent/WO2008065081A2/en
Publication of WO2008065081A3 publication Critical patent/WO2008065081A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • F02B71/00—Free-piston engines; Engines without rotary main shaft
    • F02B71/04—Adaptations of such engines for special use; Combinations of such engines with apparatus driven thereby
    • F02B71/06—Free-piston combustion gas generators per se
    • 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
    • F01B11/00—Reciprocating-piston machines or engines without rotary main shaft, e.g. of free-piston type
    • F01B11/001—Reciprocating-piston machines or engines without rotary main shaft, e.g. of free-piston type in which the movement in the two directions is obtained by one double acting piston motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L11/00—Valve arrangements in working piston or piston-rod
    • F01L11/02—Valve arrangements in working piston or piston-rod in piston
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L23/00—Valves controlled by impact by piston, e.g. in free-piston machines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
    • 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
    • F02B25/00—Engines characterised by using fresh charge for scavenging cylinders
    • F02B25/02—Engines characterised by using fresh charge for scavenging cylinders using unidirectional scavenging
    • F02B25/04—Engines having ports both in cylinder head and in cylinder wall near bottom of piston stroke
    • F02B25/06—Engines having ports both in cylinder head and in cylinder wall near bottom of piston stroke the cylinder-head ports being controlled by working pistons, e.g. by sleeve-shaped extensions thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C5/00—Gas-turbine plants characterised by the working fluid being generated by intermittent combustion
    • F02C5/06—Gas-turbine plants characterised by the working fluid being generated by intermittent combustion the working fluid being generated in an internal-combustion gas generated of the positive-displacement type having essentially no mechanical power output
    • F02C5/08—Gas-turbine plants characterised by the working fluid being generated by intermittent combustion the working fluid being generated in an internal-combustion gas generated of the positive-displacement type having essentially no mechanical power output the gas generator being of the free-piston type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/20—Shapes or constructions of valve members, not provided for in preceding subgroups of this group
    • F01L3/205—Reed valves
    • 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
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/60—Efficient propulsion technologies, e.g. for aircraft

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Supercharger (AREA)

Abstract

The invention relates to a free-piston engine that is connected to a pre-compressor (14) and a turbine (16) by pressurized gas. The free-piston engine (18) according to the invention has at least one piston (20) that can be reciprocated in a cylinder compartment and divides the same up into two combustion chambers (36, 38), the pre-compressor being operable electrically and/or assisted by exhaust gas.
PCT/EP2007/062822 2006-11-27 2007-11-26 Free-piston engine Ceased WO2008065081A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07847354A EP2106495A2 (en) 2006-11-27 2007-11-26 Free-piston engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202006018097U DE202006018097U1 (en) 2006-11-27 2006-11-27 Free piston engine
DE202006018097.4 2006-11-27

Publications (2)

Publication Number Publication Date
WO2008065081A2 WO2008065081A2 (en) 2008-06-05
WO2008065081A3 true WO2008065081A3 (en) 2008-11-06

Family

ID=39301123

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/062822 Ceased WO2008065081A2 (en) 2006-11-27 2007-11-26 Free-piston engine

Country Status (3)

Country Link
EP (1) EP2106495A2 (en)
DE (1) DE202006018097U1 (en)
WO (1) WO2008065081A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2476495A (en) * 2009-12-24 2011-06-29 Libertine Fpe Ltd Free piston engine
US9038581B2 (en) 2013-02-07 2015-05-26 GM Global Technology Operations LLC Linear alternator assembly with four-stroke working cycle and vehicle having same
US11008864B2 (en) 2014-04-24 2021-05-18 Aquarius Engines (A.M.) Ltd. Engine with work stroke and gas exchange through piston rod
ES2973012T3 (en) 2014-04-24 2024-06-18 Aquarius Engines A M Ltd free piston engine
US11346219B2 (en) 2014-04-24 2022-05-31 Aquarius Engines (A.M.) Ltd. Engine with work stroke and gas exchange through piston rod
JP6826098B2 (en) 2015-07-15 2021-02-03 アクエリアス・エンジンズ・（エイ・エム）・リミテッドＡｑｕａｒｉｕｓ Ｅｎｇｉｎｅｓ （Ａ．Ｍ．） Ｌｔｄ． Free piston engine
WO2017068427A1 (en) 2015-10-20 2017-04-27 Shaul Yaakoby Vibration prevention in a linear actuator
US10641166B1 (en) 2018-12-03 2020-05-05 Aquarius Engines (A.M.) Ltd. Piston rod and free piston engine
US11008959B2 (en) 2019-06-28 2021-05-18 Aquarius Engines Central Europe Sp. z o.o. System and method for controlling engine using reference point

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB286141A (en) * 1927-04-25 1928-03-01 Walter Gustav Noack Internal combustion power plant
GB292150A (en) * 1927-06-15 1929-12-16 Aktiengesellschaft Brown, Boveri & Cie.
DE2355734A1 (en) * 1972-12-15 1974-06-20 Stroemungsmasch Veb DRIVE SYSTEM, IN PARTICULAR FOR LOCOMOTIVES
DE2901833A1 (en) * 1979-01-18 1980-07-31 Franz Ruppert Two=stroke internal combustion engine - has piston in two sections of different diameters. for effective unidirectional scavenging
DE3607421A1 (en) * 1986-03-06 1987-09-10 Zott Kg Double-acting two-stroke internal combustion engine
US5158046A (en) * 1991-10-02 1992-10-27 Rucker Richard D Two-stroke cycle engine having linear gear drive
US5894821A (en) * 1994-05-18 1999-04-20 Chatelain; Michel Air valve system combined with a distribution chamber
US7117827B1 (en) * 1972-07-10 2006-10-10 Hinderks Mitja V Means for treatment of the gases of combustion engines and the transmission of their power

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE947825C (en) * 1953-07-25 1956-08-23 Willi Kastert System for generating compressed air
DE2818543A1 (en) * 1978-04-27 1979-10-31 Daimler Benz Ag Combined domestic heat and power system - has gas turbine driving heat pump to recover waste heat via heat exchanger

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB286141A (en) * 1927-04-25 1928-03-01 Walter Gustav Noack Internal combustion power plant
GB292150A (en) * 1927-06-15 1929-12-16 Aktiengesellschaft Brown, Boveri & Cie.
US7117827B1 (en) * 1972-07-10 2006-10-10 Hinderks Mitja V Means for treatment of the gases of combustion engines and the transmission of their power
DE2355734A1 (en) * 1972-12-15 1974-06-20 Stroemungsmasch Veb DRIVE SYSTEM, IN PARTICULAR FOR LOCOMOTIVES
DE2901833A1 (en) * 1979-01-18 1980-07-31 Franz Ruppert Two=stroke internal combustion engine - has piston in two sections of different diameters. for effective unidirectional scavenging
DE3607421A1 (en) * 1986-03-06 1987-09-10 Zott Kg Double-acting two-stroke internal combustion engine
US5158046A (en) * 1991-10-02 1992-10-27 Rucker Richard D Two-stroke cycle engine having linear gear drive
US5894821A (en) * 1994-05-18 1999-04-20 Chatelain; Michel Air valve system combined with a distribution chamber

Also Published As

Publication number Publication date
EP2106495A2 (en) 2009-10-07
WO2008065081A2 (en) 2008-06-05
DE202006018097U1 (en) 2008-04-30

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