JPH0447150A - Free-piston stirling engine - Google Patents

Free-piston stirling engine

Info

Publication number
JPH0447150A
JPH0447150A JP15603790A JP15603790A JPH0447150A JP H0447150 A JPH0447150 A JP H0447150A JP 15603790 A JP15603790 A JP 15603790A JP 15603790 A JP15603790 A JP 15603790A JP H0447150 A JPH0447150 A JP H0447150A
Authority
JP
Japan
Prior art keywords
displacer
small
cylinder
piston
spring constant
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
JP15603790A
Other languages
Japanese (ja)
Inventor
Kazunori Tsuchino
Kazuhiko Kawajiri
Michio Fujiwara
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP15603790A priority Critical patent/JPH0447150A/en
Publication of JPH0447150A publication Critical patent/JPH0447150A/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

Abstract

PURPOSE: To prevent a displacer from colliding against a cylinder so as to attain low noise and low vibration by providing collision preventing mechanism, formed of a non-linear spring provided with a comparatively strong spring constant, in the vicinity of both stroke ends of at least one of a displacer and a piston.
CONSTITUTION: A vertical pair of small cylinders 17a, 17a are disposed at a specified space apart inside a cylinder 1 for enclosing a displacer rod 14 connected to a displacer 13, and a small piston 17b is connected to the lower end of the displacer rod 14. This small piston 17 enters into each small cylinder 17a only in the vicinity of both ends of its stroke, and this small piston 17b and each small cylinder 17a form a gas spring space 18. Also collision preventing mechanism 17 is formed in the vicinity of the stroke of the displacer 13. The gas spring space 18 is so formed that its gas spring constant presents a non-linear spring constant enlarged suddenly as the small piston 17b approaches the small cylinder 17a, while a gas spring space 15 in the cylinder 1 is so set as to present an approximately linear spring constant.
COPYRIGHT: (C)1992,JPO&Japio
JP15603790A 1990-06-14 1990-06-14 Free-piston stirling engine Pending JPH0447150A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15603790A JPH0447150A (en) 1990-06-14 1990-06-14 Free-piston stirling engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15603790A JPH0447150A (en) 1990-06-14 1990-06-14 Free-piston stirling engine

Publications (1)

Publication Number Publication Date
JPH0447150A true JPH0447150A (en) 1992-02-17

Family

ID=15618943

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15603790A Pending JPH0447150A (en) 1990-06-14 1990-06-14 Free-piston stirling engine

Country Status (1)

Country Link
JP (1) JPH0447150A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100477352B1 (en) * 1997-02-20 2005-07-18 산요덴키가부시키가이샤 Pre-piston type viru cycle engine
WO2006013380A1 (en) 2004-08-06 2006-02-09 Microgen Energy Limited A linear free piston stirling machine
GB2455566A (en) * 2007-12-14 2009-06-17 Sunpower Inc Free piston Stirling engine with friction element to control excessive movement
JP2010090764A (en) * 2008-10-07 2010-04-22 Mitsubishi Electric Corp Ignition device for internal combustion engine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100477352B1 (en) * 1997-02-20 2005-07-18 산요덴키가부시키가이샤 Pre-piston type viru cycle engine
WO2006013380A1 (en) 2004-08-06 2006-02-09 Microgen Energy Limited A linear free piston stirling machine
GB2455566A (en) * 2007-12-14 2009-06-17 Sunpower Inc Free piston Stirling engine with friction element to control excessive movement
JP2010090764A (en) * 2008-10-07 2010-04-22 Mitsubishi Electric Corp Ignition device for internal combustion engine

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