EP4273393A3 - Hot gas engine having a step piston - Google Patents

Hot gas engine having a step piston Download PDF

Info

Publication number
EP4273393A3
EP4273393A3 EP23177758.2A EP23177758A EP4273393A3 EP 4273393 A3 EP4273393 A3 EP 4273393A3 EP 23177758 A EP23177758 A EP 23177758A EP 4273393 A3 EP4273393 A3 EP 4273393A3
Authority
EP
European Patent Office
Prior art keywords
hot gas
stepped piston
section
piston
gas engine
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.)
Pending
Application number
EP23177758.2A
Other languages
German (de)
French (fr)
Other versions
EP4273393A2 (en
Inventor
Josef Frauscher
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.)
Frauscher Holding GmbH
Original Assignee
Frauscher Holding 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 Frauscher Holding GmbH filed Critical Frauscher Holding GmbH
Publication of EP4273393A2 publication Critical patent/EP4273393A2/en
Publication of EP4273393A3 publication Critical patent/EP4273393A3/en
Pending 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
    • 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
    • F02G1/044—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 having at least two working members, e.g. pistons, delivering power output
    • 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
    • F02G2243/02—Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes having pistons and displacers in the same cylinder
    • 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
    • F02G2243/02—Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes having pistons and displacers in the same cylinder
    • F02G2243/04—Crank-connecting-rod drives
    • 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
    • F02G2270/00—Constructional features
    • F02G2270/40—Piston assemblies

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)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

Es wird eine Heißgasmaschine, insbesondere ein Stirlingmaschine beschrieben. Gemäß einem Ausführungsbeispiel umfasst die Heißgasmaschine ein Getriebe, das in einem Getrieberaum angeordnet ist, in dem Umgebungsdruck herrscht, und einen in einem Zylinder angeordneten doppeltwirkenden Stufenkolben, der einen ersten Abschnitt mit einen größeren Durchmesser und einen zweiten Abschnitt mit einem kleineren Durchmesser aufweist. Der Stufenkolben ist zumindest teilweise hohl und weist im inneren eine Kolbenstange auf, die mit dem Getriebe mechanisch gekoppelt ist. Der dem Getriebe zugewandte zweite Abschnitt des Stufenkolbens mündet in einen Pufferraum für das Arbeitsgas der Heißgasmaschine, wobei im Inneren des Stufenkolbens zumindest ein Teil einer Dichtungsvorrichtung angeordnet ist, welche eine Durchführung der Kolbenstange zwischen Pufferraum und Getrieberaum abdichtet.A hot gas engine, in particular a Stirling engine, is described. According to an exemplary embodiment, the hot gas machine comprises a gear that is arranged in a gear room in which ambient pressure prevails, and a double-acting stepped piston arranged in a cylinder and having a first section with a larger diameter and a second section with a smaller diameter. The stepped piston is at least partially hollow and has a piston rod inside that is mechanically coupled to the transmission. The second section of the stepped piston facing the transmission opens into a buffer space for the working gas of the hot gas machine, with at least part of a sealing device being arranged inside the stepped piston, which seals a passage of the piston rod between the buffer space and the gearbox space.

EP23177758.2A 2017-05-09 2018-05-03 Hot gas engine having a step piston Pending EP4273393A3 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102017109967.0A DE102017109967B9 (en) 2017-05-09 2017-05-09 STIRLING MACHINE WITH STEPPING PISTON
EP18722503.2A EP3622167B1 (en) 2017-05-09 2018-05-03 Hot gas engine having a step piston
PCT/EP2018/061441 WO2018206412A1 (en) 2017-05-09 2018-05-03 Hot gas engine having a step piston

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP18722503.2A Division EP3622167B1 (en) 2017-05-09 2018-05-03 Hot gas engine having a step piston

Publications (2)

Publication Number Publication Date
EP4273393A2 EP4273393A2 (en) 2023-11-08
EP4273393A3 true EP4273393A3 (en) 2024-01-10

Family

ID=62116448

Family Applications (2)

Application Number Title Priority Date Filing Date
EP18722503.2A Active EP3622167B1 (en) 2017-05-09 2018-05-03 Hot gas engine having a step piston
EP23177758.2A Pending EP4273393A3 (en) 2017-05-09 2018-05-03 Hot gas engine having a step piston

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP18722503.2A Active EP3622167B1 (en) 2017-05-09 2018-05-03 Hot gas engine having a step piston

Country Status (8)

Country Link
US (2) US11215139B2 (en)
EP (2) EP3622167B1 (en)
JP (1) JP7202365B2 (en)
CA (1) CA3096716C (en)
DE (1) DE102017109967B9 (en)
ES (1) ES2951904T3 (en)
PL (1) PL3622167T3 (en)
WO (1) WO2018206412A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017109967B9 (en) * 2017-05-09 2020-05-07 Frauscher Holding Gmbh STIRLING MACHINE WITH STEPPING PISTON

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1313393A (en) * 1969-04-17 1973-04-11 Philips Nv Piston-and-cylinder device having a rolling-diaphragm seal
US4452042A (en) * 1982-09-30 1984-06-05 Mechanical Technology Incorporated Piston rod seal

Family Cites Families (31)

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DE259159C (en) *
US2567637A (en) * 1947-01-31 1951-09-11 Hartford Nat Bank & Trust Co Hot gas piston apparatus with flexible crank coupling
US3074229A (en) * 1960-06-22 1963-01-22 Philips Corp Hot-gas reciprocating machine and system composed of a plurality of these machines
NL6410513A (en) * 1964-09-10 1966-03-11
US3940934A (en) 1971-09-20 1976-03-02 Kommanditbolaget United Stirling (Sweden) Ab & Co. Stirling engines
GB1315889A (en) * 1971-12-21 1973-05-02 United Stirling Ab & Co Two-cylinder hot gas engines
FR2167154A5 (en) * 1971-12-30 1973-08-17 Avermaete Gilbert
JPS4873602A (en) * 1971-12-30 1973-10-04
US4044558A (en) * 1974-08-09 1977-08-30 New Process Industries, Inc. Thermal oscillator
US4069671A (en) 1976-07-02 1978-01-24 Kommanditbolaget United Stirling (Sweden) Ab & Co. Stirling engine combustion assembly
US4183219A (en) * 1977-02-25 1980-01-15 Vargas Eduardo A Self starting hot gas engine with means for changing the expansion ratio
US4107925A (en) * 1977-03-14 1978-08-22 Sanders Chapman Watson Stirling engine
GB1521444A (en) 1977-04-07 1978-08-16 United Stirling Ab & Co Multi-cylinder double-acting hot gas engine
US4195482A (en) * 1978-07-28 1980-04-01 Moloney John S Stirling cycle machine
DE8004988U1 (en) * 1980-02-25 1980-07-17 Witzenmann Gmbh, Metallschlauch- Fabrik Pforzheim, 7530 Pforzheim CYLINDER PISTON UNIT, ESPECIALLY FOR STIRLING MACHINES
US4563131A (en) * 1984-04-30 1986-01-07 Mechanical Technology Incorporated Variable displacement blower
US4698970A (en) 1985-04-25 1987-10-13 Sanden Corporation Stirling cycle type engine
GB2243192B (en) * 1990-04-17 1993-12-01 Energy For Sustainable Dev Lim Stirling engines
GB9008522D0 (en) * 1990-04-17 1990-06-13 Energy For Suitable Dev Limite Reciprocatory displacement machine
US5103643A (en) * 1991-03-11 1992-04-14 Ross Melvin A Transposed compression piston and cylinder
KR0131481Y1 (en) * 1995-09-04 1998-12-15 구자홍 Supporting structure of piston for stirling engine
DE19904269C2 (en) 1999-02-03 2001-07-05 Michael Ruppel Hot air engine
US6324933B1 (en) * 1999-10-06 2001-12-04 Agere Systems Guardian Corp. Planar movable stage mechanism
DE10229442B4 (en) 2002-07-01 2008-12-24 Pasemann, Lutz, Dr. Heat exchanger for cooling the working gas of a Stirling engine
JP4873602B2 (en) 2005-03-31 2012-02-08 月島機械株式会社 Continuous feed reactor and method thereof
JP4868937B2 (en) 2005-05-20 2012-02-01 富士フイルム株式会社 Image recording apparatus and method, and density correction coefficient determination method
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JP5507135B2 (en) 2009-07-08 2014-05-28 Ｊｒ東日本メカトロニクス株式会社 Obstacle detection device, platform door system provided with the same, and obstacle detection method
GB2554458A (en) 2016-09-29 2018-04-04 Kontax Eng Ltd Improvement to manson engine
DE102017109967B9 (en) * 2017-05-09 2020-05-07 Frauscher Holding Gmbh STIRLING MACHINE WITH STEPPING PISTON

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1313393A (en) * 1969-04-17 1973-04-11 Philips Nv Piston-and-cylinder device having a rolling-diaphragm seal
US4452042A (en) * 1982-09-30 1984-06-05 Mechanical Technology Incorporated Piston rod seal

Also Published As

Publication number Publication date
DE102017109967A1 (en) 2018-11-15
US20220106926A1 (en) 2022-04-07
DE102017109967B9 (en) 2020-05-07
JP2020519813A (en) 2020-07-02
EP3622167C0 (en) 2023-06-07
DE102017109967B4 (en) 2018-11-29
JP7202365B2 (en) 2023-01-11
EP3622167A1 (en) 2020-03-18
US20200408168A1 (en) 2020-12-31
CA3096716A1 (en) 2018-11-15
EP4273393A2 (en) 2023-11-08
CA3096716C (en) 2023-12-19
ES2951904T3 (en) 2023-10-25
EP3622167B1 (en) 2023-06-07
WO2018206412A1 (en) 2018-11-15
PL3622167T3 (en) 2023-08-21
US11725607B2 (en) 2023-08-15
US11215139B2 (en) 2022-01-04

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