SE1850007A1 - Stirling engine comprising pressure regulating means arranged in a working piston - Google Patents

Stirling engine comprising pressure regulating means arranged in a working piston

Info

Publication number
SE1850007A1
SE1850007A1 SE1850007A SE1850007A SE1850007A1 SE 1850007 A1 SE1850007 A1 SE 1850007A1 SE 1850007 A SE1850007 A SE 1850007A SE 1850007 A SE1850007 A SE 1850007A SE 1850007 A1 SE1850007 A1 SE 1850007A1
Authority
SE
Sweden
Prior art keywords
working
displacer
cylinder
chamber
piston
Prior art date
Application number
SE1850007A
Other versions
SE541777C2 (en
Inventor
Stefan Mastonstråle
Original Assignee
Maston AB
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 Maston AB filed Critical Maston AB
Priority to SE1850007A priority Critical patent/SE541777C2/en
Priority to PCT/SE2018/051354 priority patent/WO2019135697A1/en
Publication of SE1850007A1 publication Critical patent/SE1850007A1/en
Publication of SE541777C2 publication Critical patent/SE541777C2/en

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
    • 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
    • F02G1/045—Controlling
    • F02G1/05—Controlling by varying the rate of flow or quantity of the working gas
    • 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
    • F02G1/06—Controlling
    • 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
    • F02G2270/30—Displacer 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
    • F02G2270/40—Piston assemblies

Abstract

A Stirling engine comprising: a crank case (1) with a crank shaft (2) arranged therein, a displacer cylinder (3) with a reciprocatingly arranged displacer piston (4) therein, said displacer piston (4) being connected to said crank shaft (2) via a connecting rod (5) extending through a first end of said displacer cylinder (3), and wherein the displacer cylinder (3) defines a hot chamber (6) and a cool chamber (7) separated by the displacer piston (4), a working cylinder (8) defining a working cylinder chamber (11) with a reciprocatingly arranged working piston (9) therein, said working piston (9) being connected to said crank shaft (2) via a connecting rod (10) extending through a first end of the working cylinder (8), wherein the working cylinder chamber (11) is divided by the working piston (9) into a first part (12), through which said rod (10) extends, and a second part (13) configured to house a working gas during operation of the Stirling engine, wherein said second part (13) of the working cylinder chamber (11) is in fluid communication with the hot chamber (6) of the displacer cylinder (3) for the transportation of the working gas between said second part (13) and the hot chamber (6) during operation of the engine, means (23, 24) for regulating the pressure difference between said first part (12) and second part (13) of the working cylinder chamber (11), a heater device (14), arranged at a second end of said displacer cylinder (3) opposite to said first end and configured to heat a working gas which is present in the hot chamber (6) of the displacer cylinder (3) and in fluid communication with the working cylinder chamber (11) through a working gas channel which comprises a first heat exchanger (16) extending from a head (19) of the displacer cylinder (3) into the heater device (14), and a second heat exchanger (17) formed by a regenerator arranged outside the heater device (14). The means (23, 24) for regulating the pressure difference between said first part and second part of the working cylinder chamber (11) comprises a channel (23) extending through the working piston (9) from a first side of the working piston (9) turned towards said first part (12) of the working cylinder chamber (11) to a second side of the working piston (9) turned towards the second part (13) of the working cylinder chamber (11), and there is provided a valve (24) in said channel that is configured to open for fluid flow from said first part (12) to said second part (13) when the gas pressure P1 in the first part (12) exceeds the gas pressure P2 in the second part (13) with a predetermined amount.
SE1850007A 2018-01-02 2018-01-02 Stirling engine comprising pressure regulating means arranged in a working piston SE541777C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE1850007A SE541777C2 (en) 2018-01-02 2018-01-02 Stirling engine comprising pressure regulating means arranged in a working piston
PCT/SE2018/051354 WO2019135697A1 (en) 2018-01-02 2018-12-20 Stirling engine comprising pressure regulating means arranged in a working piston

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1850007A SE541777C2 (en) 2018-01-02 2018-01-02 Stirling engine comprising pressure regulating means arranged in a working piston

Publications (2)

Publication Number Publication Date
SE1850007A1 true SE1850007A1 (en) 2019-07-03
SE541777C2 SE541777C2 (en) 2019-12-17

Family

ID=67144166

Family Applications (1)

Application Number Title Priority Date Filing Date
SE1850007A SE541777C2 (en) 2018-01-02 2018-01-02 Stirling engine comprising pressure regulating means arranged in a working piston

Country Status (2)

Country Link
SE (1) SE541777C2 (en)
WO (1) WO2019135697A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01249948A (en) * 1988-03-31 1989-10-05 Toshiba Corp Stirling engine
JPH09152211A (en) * 1995-11-30 1997-06-10 Sanyo Electric Co Ltd Piston for external combustion engine
US20050274110A1 (en) * 2004-06-14 2005-12-15 Toyota Jidosha Kabushiki Kaisha Stirling engine
WO2015110726A1 (en) * 2014-01-27 2015-07-30 Alain De Larminat Internal combustion engine
WO2017145804A1 (en) * 2016-02-26 2017-08-31 ヤンマー株式会社 Output adjusting device for stirling engine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01249948A (en) * 1988-03-31 1989-10-05 Toshiba Corp Stirling engine
JPH09152211A (en) * 1995-11-30 1997-06-10 Sanyo Electric Co Ltd Piston for external combustion engine
US20050274110A1 (en) * 2004-06-14 2005-12-15 Toyota Jidosha Kabushiki Kaisha Stirling engine
WO2015110726A1 (en) * 2014-01-27 2015-07-30 Alain De Larminat Internal combustion engine
WO2017145804A1 (en) * 2016-02-26 2017-08-31 ヤンマー株式会社 Output adjusting device for stirling engine

Also Published As

Publication number Publication date
WO2019135697A1 (en) 2019-07-11
SE541777C2 (en) 2019-12-17

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