EP1239137A3 - Piston and cylinders for a Stirling engine - Google Patents

Piston and cylinders for a Stirling engine Download PDF

Info

Publication number
EP1239137A3
EP1239137A3 EP02400014A EP02400014A EP1239137A3 EP 1239137 A3 EP1239137 A3 EP 1239137A3 EP 02400014 A EP02400014 A EP 02400014A EP 02400014 A EP02400014 A EP 02400014A EP 1239137 A3 EP1239137 A3 EP 1239137A3
Authority
EP
European Patent Office
Prior art keywords
piston
cylinders
stirling engine
ring groove
stroke
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
EP02400014A
Other languages
German (de)
French (fr)
Other versions
EP1239137B1 (en
EP1239137A2 (en
Inventor
Andreas Baumüller
Andreas Laug
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.)
SOLO STIRLING GMBH
Original Assignee
Solo Kleinmotoren GmbH
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 Solo Kleinmotoren GmbH filed Critical Solo Kleinmotoren GmbH
Publication of EP1239137A2 publication Critical patent/EP1239137A2/en
Publication of EP1239137A3 publication Critical patent/EP1239137A3/en
Application granted granted Critical
Publication of EP1239137B1 publication Critical patent/EP1239137B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G1/00—Hot gas positive-displacement engine plants
    • F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
    • F02G1/043—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
    • F02G1/053—Component parts or details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G1/00—Hot gas positive-displacement engine plants
    • F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
    • F02G1/043—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G2243/00—Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes
    • F02G2243/30—Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes having their pistons and displacers each in separate cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G2244/00—Machines having two pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G2244/00—Machines having two pistons
    • F02G2244/02—Single-acting two piston engines
    • F02G2244/06—Single-acting two piston engines of stationary cylinder type
    • F02G2244/10—Single-acting two piston engines of stationary cylinder type having cylinders in V-arrangement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G2270/00—Constructional features
    • F02G2270/40—Piston assemblies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G2270/00—Constructional features
    • F02G2270/45—Piston rods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
    • F05C2225/04—PTFE [PolyTetraFluorEthylene]

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Abstract

The piston and cylinder unit includes a piston with at least one piston ring groove (35). The spacing between the piston ring groove closest to the crankshaft and the bottom edge (43) of the piston body (41) is between 0.66 and 1.5 times the piston stroke, preferably between 0.9 and 1.1 times the piston stroke. The cylinder is made of globular gray-cast iron, and its running surface is induction-hardened.
EP02400014A 2001-03-05 2002-03-05 Piston and cylinders for a Stirling engine Expired - Lifetime EP1239137B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10110446 2001-03-05
DE10110446A DE10110446A1 (en) 2001-03-05 2001-03-05 Pistons and cylinders for a Stirling engine

Publications (3)

Publication Number Publication Date
EP1239137A2 EP1239137A2 (en) 2002-09-11
EP1239137A3 true EP1239137A3 (en) 2003-05-28
EP1239137B1 EP1239137B1 (en) 2009-05-27

Family

ID=7676308

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02400014A Expired - Lifetime EP1239137B1 (en) 2001-03-05 2002-03-05 Piston and cylinders for a Stirling engine

Country Status (3)

Country Link
EP (1) EP1239137B1 (en)
AT (1) ATE432413T1 (en)
DE (2) DE10110446A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102041370B (en) * 2010-11-12 2012-05-23 江南大学 Steel-top aluminium-skirt piston ring groove induction strengthened self-tempering preventor
SE541815C2 (en) * 2018-01-02 2019-12-17 Maston AB Stirling engine comprising a metal foam regenerator
SE541814C2 (en) * 2018-01-02 2019-12-17 Maston AB Stirling engine comprising a transition flow element
SE541816C2 (en) * 2018-01-02 2019-12-17 Maston AB A Stirling engine arranged with a gas channel comprising three heat exchangers

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR935169A (en) * 1945-10-29 1948-06-11 Philips Nv Improvements to hot gas piston machines
CH347677A (en) * 1956-01-24 1960-07-15 Energy Limited Hot gas piston machine with external heating
DE2851806A1 (en) * 1978-11-30 1980-06-12 Briggs & Stratton Corp Combustion or solar energy Stirling engine - has hot exhaust passed to cold space which is replenished with fresh gas for next stroke
JPS5896148A (en) * 1981-12-02 1983-06-08 Aisin Seiki Co Ltd Piston of gas engine
US5755100A (en) * 1997-03-24 1998-05-26 Stirling Marine Power Limited Hermetically sealed stirling engine generator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR935169A (en) * 1945-10-29 1948-06-11 Philips Nv Improvements to hot gas piston machines
CH347677A (en) * 1956-01-24 1960-07-15 Energy Limited Hot gas piston machine with external heating
DE2851806A1 (en) * 1978-11-30 1980-06-12 Briggs & Stratton Corp Combustion or solar energy Stirling engine - has hot exhaust passed to cold space which is replenished with fresh gas for next stroke
JPS5896148A (en) * 1981-12-02 1983-06-08 Aisin Seiki Co Ltd Piston of gas engine
US5755100A (en) * 1997-03-24 1998-05-26 Stirling Marine Power Limited Hermetically sealed stirling engine generator

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 007, no. 197 (M - 239) 27 August 1983 (1983-08-27) *

Also Published As

Publication number Publication date
EP1239137B1 (en) 2009-05-27
DE10110446A1 (en) 2002-09-19
DE50213570D1 (en) 2009-07-09
ATE432413T1 (en) 2009-06-15
EP1239137A2 (en) 2002-09-11

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