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EP0947680A3 - Free-piston gas generator - Google Patents

Free-piston gas generator Download PDF

Info

Publication number
EP0947680A3
EP0947680A3 EP99113550A EP99113550A EP0947680A3 EP 0947680 A3 EP0947680 A3 EP 0947680A3 EP 99113550 A EP99113550 A EP 99113550A EP 99113550 A EP99113550 A EP 99113550A EP 0947680 A3 EP0947680 A3 EP 0947680A3
Authority
EP
European Patent Office
Prior art keywords
cylinder
exhaust gas
free
gas generator
component
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Withdrawn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
EP99113550A
Other languages
German (de)
French (fr)
Other versions
EP0947680A2 (en
Inventor
Magnar Jarle Forde
Rolf Kvamsdal
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.)
Kvaerner ASA
Original Assignee
Kvaerner ASA
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 Kvaerner ASA filed Critical Kvaerner ASA
Publication of EP0947680A2 publication Critical patent/EP0947680A2/en
Publication of EP0947680A3 publication Critical patent/EP0947680A3/en
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • F02B75/04—Engines with variable distances between pistons at top dead-centre positions and cylinder heads
    • 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
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

Improvement in diesel free-piston gas generators with, e.g., a cylinder in which there are provided two pistons, which are moved synchronously towards or from each other. At the ends of the cylinder the cylinder and the pistons define a combustion chamber which can be connected to a pipe for the supply of high-energy exhaust gas to a consumer thereof. According to the invention, the device comprises at least one exhaust gas valve, which is arranged in an exhaust gas port provided in the cylinder section, which port constantly communicates with the combustion chamber. The exhaust gas valve is operated by an activator which is controlled, e.g., by a computer which via sensors very rapidly establishes values for operating parameters for the gas generator. Furthermore, the cylinder portion of the buffer chamber comprises a component which is movable relative to the rest of the cylinder portion, by means of which component the volume of the buffer chamber is variable.
EP99113550A 1996-01-30 1997-01-29 Free-piston gas generator Withdrawn EP0947680A3 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NO960402A NO305451B1 (en) 1996-01-30 1996-01-30 Device for preventing collision between a piston and a cylinder of a free piston device
NO960402 1996-01-30
EP97902766A EP0877858A1 (en) 1996-01-30 1997-01-29 An improvement in free-piston devices

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP97902766A Division EP0877858A1 (en) 1996-01-30 1997-01-29 An improvement in free-piston devices

Publications (2)

Publication Number Publication Date
EP0947680A2 EP0947680A2 (en) 1999-10-06
EP0947680A3 true EP0947680A3 (en) 1999-10-27

Family

ID=19898987

Family Applications (2)

Application Number Title Priority Date Filing Date
EP99113550A Withdrawn EP0947680A3 (en) 1996-01-30 1997-01-29 Free-piston gas generator
EP97902766A Ceased EP0877858A1 (en) 1996-01-30 1997-01-29 An improvement in free-piston devices

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP97902766A Ceased EP0877858A1 (en) 1996-01-30 1997-01-29 An improvement in free-piston devices

Country Status (4)

Country Link
EP (2) EP0947680A3 (en)
JP (1) JP2000504084A (en)
NO (1) NO305451B1 (en)
WO (1) WO1997028363A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6925971B1 (en) * 2004-05-20 2005-08-09 Ford Global Technologies, Llc Exhaust gas recirculation for a free piston engine
US20080271711A1 (en) * 2005-11-22 2008-11-06 Peter Charles Cheeseman Four-Stroke Free Piston Engine
DE202006018098U1 (en) * 2006-11-27 2008-04-10 Jung, Nadine Energy conversion system
CN103967604A (en) * 2013-01-28 2014-08-06 安徽中鼎动力有限公司 Free piston type engine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE536930C (en) * 1928-04-23 1931-10-28 Robert Lee Gray Internal combustion engine with adjustable compression by adjusting a piston
CH498290A (en) * 1969-03-06 1970-10-31 Braun Anton Free piston engine
GB2214569A (en) * 1988-01-21 1989-09-06 Barry John Rymer Free-piston I.C engine
US4876991A (en) * 1988-12-08 1989-10-31 Galitello Jr Kenneth A Two stroke cycle engine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4369021A (en) * 1980-05-16 1983-01-18 Heintz Richard P Free-piston engine pump
US4653274A (en) * 1984-03-06 1987-03-31 David Constant V Method of controlling a free piston external combustion engine
US5363651A (en) * 1993-07-12 1994-11-15 Knight Arthur G Free piston internal combustion engine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE536930C (en) * 1928-04-23 1931-10-28 Robert Lee Gray Internal combustion engine with adjustable compression by adjusting a piston
CH498290A (en) * 1969-03-06 1970-10-31 Braun Anton Free piston engine
GB2214569A (en) * 1988-01-21 1989-09-06 Barry John Rymer Free-piston I.C engine
US4876991A (en) * 1988-12-08 1989-10-31 Galitello Jr Kenneth A Two stroke cycle engine

Also Published As

Publication number Publication date
EP0877858A1 (en) 1998-11-18
EP0947680A2 (en) 1999-10-06
JP2000504084A (en) 2000-04-04
NO960402L (en) 1997-08-25
NO305451B1 (en) 1999-05-31
WO1997028363A1 (en) 1997-08-07
NO960402D0 (en) 1996-01-30

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