WO2001012970A1 - Hot-gas engine with pistons that work inside one another - Google Patents

Hot-gas engine with pistons that work inside one another Download PDF

Info

Publication number
WO2001012970A1
WO2001012970A1 PCT/DE2000/002756 DE0002756W WO0112970A1 WO 2001012970 A1 WO2001012970 A1 WO 2001012970A1 DE 0002756 W DE0002756 W DE 0002756W WO 0112970 A1 WO0112970 A1 WO 0112970A1
Authority
WO
WIPO (PCT)
Prior art keywords
piston
hollow
working
gas engine
pistons
Prior art date
Application number
PCT/DE2000/002756
Other languages
German (de)
French (fr)
Inventor
Andreas Gimsa
Original Assignee
Enerlyt Potsdam 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
Priority claimed from DE1999138023 external-priority patent/DE19938023C2/en
Priority claimed from DE2000116707 external-priority patent/DE10016707C2/en
Application filed by Enerlyt Potsdam Gmbh filed Critical Enerlyt Potsdam Gmbh
Priority to JP2001517041A priority Critical patent/JP2003507618A/en
Priority to DE10082399T priority patent/DE10082399D2/en
Publication of WO2001012970A1 publication Critical patent/WO2001012970A1/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
    • F02G1/0435—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 the engine being of the free piston type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B7/00—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders
    • F01B7/20—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders with two or more pistons reciprocating one within another, e.g. one piston forming cylinder of the other
    • 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
    • F02G2243/02—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
    • F02G2244/00—Machines having two pistons
    • F02G2244/50—Double acting piston machines
    • 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

Definitions

  • the present invention represents a novel hot gas engine with two movable pistons, in which one of the two pistons runs in the interior of the other and thus the outer piston is simultaneously the cylinder of the inner piston and the stroke range of the inner piston is centered or approximately centered in the stroke range of the outer piston maintains (delta type)
  • This system can be nested as required, combined, simple and double-acting to manufacture, because of the symmetry, free-piston versions are particularly inexpensive to perform, since it is structurally simple to generate an electromagnetic alternating field that can be tapped to the outside or to allow the outer cylinders to oscillate, are perfect dense hot gas motors can be realized, which drive machines, vehicles or generators directly via the movable cylinders.
  • ring-shaped or other types of permanent magnets or coils can be integrated in each of the oscillating piston rods alternating voltages can then be induced in the outer containment tube
  • At least two nested pairs of an outer and an inner piston which are firmly connected in series, offer immense advantages over all previous Stirhng motors with their crosswise coupling, especially if the chaining is done via at least one hollow piston rod a simple system with 2 identical work cycles can be built up.
  • These pairs can be designed particularly well as free-piston engines, since the phase offset can be set in a defined manner via the distance between the outer cylinders and can also be regulated when the load changes by means of a spring preload that can be changed from the outside Double-acting double-acting systems can be produced very compactly.
  • a double motor only consists of 3 main assemblies, 2 of which are movable. The two pneumatically separated gas spaces make it possible to work with two different gases as well as coupling processes with internal and external combustion in one engine
  • Phase displacement of free piston systems can be defined and regulated. Complete tightness in free piston systems or oscillating cylinders. Complete mass compensation with mutual coupling of piston pairs with 180 degree phase displacement. Free piston springs can all be on the cold engine side

Abstract

The invention relates to a hot-gas engine with moveable outer and inner pistons. One of the pistons works inside the other piston. The outer piston thus is the cylinder of the inner piston. The stroke area of the inner piston is arranged in a centric or approximately centric manner in relation to the stroke area of the outer piston.

Description

Heißgasmotor mit ineinander laufenden Kolben Hot gas engine with reciprocating pistons
Beschreibungdescription
Ein Heißgasmotor, bei dem ein Arbeitskolben innerhalb eines Verdrangers lauft, der gleichzeitig Arbeitszylinder ist, wurde erstmals in der Patentschrift DE 199 38 023 offenbart Die Patentschrift US 1 128 860 offenbart eine anscheinend ähnliche Anordnung, nur bewegt sich bei diesem Patent ein Arbeitskolben nicht direkt im Verdranger, sondern in einer mit ihm verbundenen beweglichen Hülse Die Kühlung des Arbeitsgases ist konstruktiv schwierig und durch die notwendige zusätzliche Warmeleitung in der beweglichen Hülse eingeschränkt Durch den allseitig geschlossenen Verdrangeraufsatz ist das System nicht verschachtelbar Ein weiterer Nachteil ist die große Baulange des Motors, die sich durch den Verdrangeraufsatz ergibtA hot gas engine in which a working piston runs within a displacer, which is also a working cylinder, was first disclosed in the patent specification DE 199 38 023. The patent specification US 1 128 860 discloses an apparently similar arrangement, only with this patent a working piston does not move directly in the Displacer, but in a movable sleeve connected to it The cooling of the working gas is structurally difficult and limited by the additional heat conduction required in the movable sleeve. The system is not nestable due to the all-round closed displacement displacer. Another disadvantage is the large length of the motor, which results from the displacer attachment
Die vorliegende Erfindung stellt einen neuartigen Heißgasmotor mit zwei beweglichen Kolben dar, bei dem einer der beiden Kolben im Innenraum des anderen lauft und damit der äußere Kolben gleichzeitig Zylinder des inneren Kolbens ist und der Hubbereich des inneren Kolbens mittig oder annähernd mittig im Hubbereich des äußeren Kolbens hegt (Delta- Typ) Dieses System ist beliebig verschachtelbar, kombinierbar, einfach- und doppeltwirkend herzustellen Symmetriebedingt sind Freikolbenvarianten besonders gunstig auszufuhren Da konstruktiv einfach die Möglichkeit besteht, ein nach außen abgreifbares elektromagnetisches Wechselfeld zu erzeugen oder die äußeren Zylinder oszillieren zu lassen, sind vollkommen dichte Heißgasmotoren realisierbar, die über die beweglichen Zylinder direkt Maschinen , Fahrzeuge oder Generatoren antreiben Beispielsweise kann man in jede der oszillierenden Kolbenstangen ringförmige oder anders geartete Permanentmagnete oder Spulen integrieren In den Spulen des äußeren Umschließungsrohres können dann Wechsel-Spannungen induziert werdenThe present invention represents a novel hot gas engine with two movable pistons, in which one of the two pistons runs in the interior of the other and thus the outer piston is simultaneously the cylinder of the inner piston and the stroke range of the inner piston is centered or approximately centered in the stroke range of the outer piston maintains (delta type) This system can be nested as required, combined, simple and double-acting to manufacture, because of the symmetry, free-piston versions are particularly inexpensive to perform, since it is structurally simple to generate an electromagnetic alternating field that can be tapped to the outside or to allow the outer cylinders to oscillate, are perfect dense hot gas motors can be realized, which drive machines, vehicles or generators directly via the movable cylinders. For example, ring-shaped or other types of permanent magnets or coils can be integrated in each of the oscillating piston rods alternating voltages can then be induced in the outer containment tube
Mindestens zwei ineinander verschachtelte Paare je eines äußeren und eines inneren Kolbens, die in Reihe fest miteinander verbunden sind, bieten bei ihrer kreuzweisen Umschließungs-Kopplung immense Vorteile gegenüber allen bisherigen Stirhng-Motoren Insbesondere dann, wenn die Verkettung über mindestens eine hohle Kolbenstange geschieht Es laßt sich ein einfaches System mit 2 identischen Arbeitszyklen aufbauen Solche Paare lassen sich besonders gut als Freikolbenmotoren ausfuhren, da der Phasenversatz über den Abstand der äußeren Zylinder definiert einstellbar und bei Lastwechseln über eine von außen anderbare Federvorspannung auch regelbar ist Dadurch, daß ein Umschließungs-Kolben 4 Arbeitsseiten haben kann, sind zweifach doppeltwirkende Systeme sehr kompakt herzustellen So ein Doppel-Motor besteht lediglich aus 3 Hauptbaugruppen, von denen 2 beweglich sind Durch die beiden pneumatisch getrennten Gasraume besteht die Möglichkeit, mit zwei verschiedenen Gasen zu arbeiten sowie Prozesse mit interner und externer Verbrennung in einem Motor zu koppelnAt least two nested pairs of an outer and an inner piston, which are firmly connected in series, offer immense advantages over all previous Stirhng motors with their crosswise coupling, especially if the chaining is done via at least one hollow piston rod a simple system with 2 identical work cycles can be built up.These pairs can be designed particularly well as free-piston engines, since the phase offset can be set in a defined manner via the distance between the outer cylinders and can also be regulated when the load changes by means of a spring preload that can be changed from the outside Double-acting double-acting systems can be produced very compactly. A double motor only consists of 3 main assemblies, 2 of which are movable. The two pneumatically separated gas spaces make it possible to work with two different gases as well as coupling processes with internal and external combustion in one engine
Vorteile gegenüber bisherigen Konstruktionen Konstruktiv einfacher AufbauAdvantages compared to previous designs Simple construction
Hohe massen- und volumenbezogene Energiedichte (Wegfall eines Zylinders, als doppeltwirkendes System sehr kompakt)High mass and volume-related energy density (omission of a cylinder, very compact as a double-acting system)
Bei oszillierenden Zylindern gute Wärmeübergänge durch hohe Reynoldszahlen an Kuhler, Erhitzer und im RegeneratorGood heat transfer in oscillating cylinders due to high Reynolds numbers on the cooler, heater and in the regenerator
Phasenversatz von Freikolbensystemen definiert einstell- und regelbar Vollständige Dichtigkeit bei Freikolbensystemen oder oszillierenden Zylindern Vollständiger Massenausgleich bei wechselseitiger Kopplung von Kolbenpaaren mit 180 Grad Phasenversatz, Freikolbenfedern können alle auf der kalten Motorseite liegen Einfacher Anschluß von Lineargeneratoren im Verbindungsglied zweier Kolbenpaare Phase displacement of free piston systems can be defined and regulated. Complete tightness in free piston systems or oscillating cylinders. Complete mass compensation with mutual coupling of piston pairs with 180 degree phase displacement. Free piston springs can all be on the cold engine side

Claims

Patentansprücheclaims
1 Heißgasmotor mit beweglichen Außen- und Innenkolben, bei dem einer der beiden Kolben im Innenraum des anderen lauft und damit der äußere Kolben gleichzeitig Zylinder des inneren Kolbens ist und der Hubbereich des inneren Kolbens mittig oder annähernd mittig im Hubbereich des äußeren Kolbens liegt1 hot gas engine with movable outer and inner pistons, in which one of the two pistons runs in the interior of the other and thus the outer piston is simultaneously the cylinder of the inner piston and the stroke range of the inner piston is centered or approximately centered in the stroke range of the outer piston
2 Heißgasmotor nach Anspruch 1 , dadurch gekennzeichnet, daß ein Arbeitskolben im Verdranger lauft Dabei kann der Phasenversatz und die Arbeitsentnahme sowohl über einen Kurbeltrieb als auch mittels Freikolbensystem, bei dem der äußere hohle Kolben am inneren Zylindergehause mindestens einseitig als Freikolben aufgehängt wird und bei dem der innere Kolben mindestens einseitig von innen am äußeren Kolben als Freikolben aufgehängt wird, erreicht werden2 hot gas engine according to claim 1, characterized in that a working piston runs in the displacer, the phase shift and the work removal both via a crank mechanism and by means of a free piston system in which the outer hollow piston is suspended on one side as a free piston on the inner cylinder housing and in which the inner piston is suspended at least on one side from the inside on the outer piston as a free piston
3 Heißgasmotor nach Anspruch 1 mit mindestens 2 beweglichen Einheiten aus jeweils einem hohlem Außenkolben und einem Innenkolben, dadurch gekennzeichnet, daß der hohle Innenraum des herausragenden Kolbenstangenendes des ersten Innenkolbens zu einem ersten Außenkolben aufgeweitet ist (oder mit dem Innenraum eines hohlen Außenkolbens fest verbunden ist) Dieser erste Außenkolben enthalt wiederum einen zweiten Innenkolben, dessen Kolbenstange mit dem zweiten Außenkolben, der den ersten Innenkolben umschließt, fest verbunden ist und in der hohlen Kolbenstange des ersten Innenkolbens lauft Es besteht also eine wechselseitige Umhüllung der Außenkolben mindestens zweier Paare hintereinander liegender, fest gekoppelter Einheiten aus Innenkolben und Außenkolben Beide hohlen Außenkolben oszillieren in je einem druckdichten Zylindergehause Beide Gehäuse sind über ein druckdichtes Rohr, das die beiden Kolbenstangen umschließt, fest verbunden Heißgasmotor nach Anspruch 1 , 2 und 3 mit mindestens 2 beweglichen Einheiten aus jeweils hohlem Verdranger und Arbeitskolben, dadurch gekennzeichnet, daß der hohle Innenraum des herausragenden Kolbenstangenendes des ersten Arbeitskolbens zu einem ersten Verdranger aufgeweitet ist Dieser erste Verdranger enthalt wiederum einen zweiten Arbeitskolben, dessen Kolbenstange mit dem zweiten Verdranger der den ersten Arbeitskolben umschließt, fest verbunden ist und in der hohlen Kolbenstange des ersten Arbeitskolbens lauft Es besteht also eine wechselseitige Umhüllung der Verdranger mindestens zweier Paare hintereinander liegender, fest gekoppelter Einheiten aus Arbeitskolben und Verdranger sowie ein Druckverbund des über die hohle Kolbenstange gebildeten gemeinsamen Volumens beider Verdranger3 hot gas engine according to claim 1 with at least 2 movable units each having a hollow outer piston and an inner piston, characterized in that the hollow interior of the protruding piston rod end of the first inner piston is expanded to a first outer piston (or is firmly connected to the interior of a hollow outer piston) This first outer piston in turn contains a second inner piston, the piston rod of which is firmly connected to the second outer piston, which surrounds the first inner piston, and runs in the hollow piston rod of the first inner piston. There is therefore a mutual covering of the outer pistons of at least two pairs of firmly coupled ones lying one behind the other Units consisting of inner piston and outer piston Both hollow outer pistons oscillate in a pressure-tight cylinder housing. Both housings are firmly connected via a pressure-tight tube which encloses the two piston rods. Hot gas engine according to claim 1, 2 and 3 mi t at least 2 movable units, each of a hollow displacer and working piston, characterized in that the hollow interior of the protruding piston rod end of the first working piston is expanded to form a first displacer. This first displacer in turn contains a second working piston, the piston rod of which, with the second displacer, of the first working piston encloses, is firmly connected and runs in the hollow piston rod of the first working piston.Therefore, there is a mutual covering of the displacers of at least two pairs of successively coupled units of working pistons and displacers as well as a pressure bond of the common volume of the two displacers formed by the hollow piston rod
5 Heißgasmotor nach Anspruch 1 und 3 mit mindestens 2 beweglichen Einheiten eines äußeren und eines inneren Kolbens, dadurch gekennzeichnet, daß eine paarweise Verbindung der 4 druckdichten Hohlräume einer Kolbeneinheit über Offnungen in der Kolbenwand des äußeren Kolbens besteht, so daß keine aneinander grenzenden Hohlräume verbunden werden Außerdem besteht eine äußere wechselseitige Verbindung zweier Einheiten über Regeneratoren für ein zweifach doppeltwirkendes System mit 2 identischen Arbeitsgaszyklen5 hot gas engine according to claim 1 and 3 with at least 2 movable units of an outer and an inner piston, characterized in that there is a pair connection of the 4 pressure-tight cavities of a piston unit via openings in the piston wall of the outer piston, so that no adjacent cavities are connected There is also an external mutual connection of two units via regenerators for a double, double-acting system with 2 identical working gas cycles
6 Heißgasmotor nach Anspruch 1 , 3, 4 und 5 mit mindestens 2 beweglichen Einheiten eines äußeren und eines inneren Kolbens, dadurch gekennzeichnet, daß die Kolbenstange des inneren Kolbens als Steg fest mit dem druckdichten Zylindergehause des äußeren Kolbens verbunden ist und den inneren Kolben im Zentrum des Zylindergehauses fixiert Der äußere Kolben kann sich frei innerhalb seines Zylinders, der gleichzeitig auch sein innerer Kolben ist, bewegen Genauso kann das Zylindergehause beweglich sein Dabei ist die eine Seite des äußeren Kolbens geschlossen und die andere Seite umschließt den Steg des inneren Kolbens druckdicht 6 hot gas engine according to claim 1, 3, 4 and 5 with at least 2 movable units of an outer and an inner piston, characterized in that the piston rod of the inner piston is fixed as a web with the pressure-tight cylinder housing of the outer piston and the inner piston in the center of the cylinder housing fixed The outer piston can move freely within its cylinder, which is also its inner piston, in the same way the cylinder housing can be moved. One side of the outer piston is closed and the other side encloses the web of the inner piston in a pressure-tight manner
PCT/DE2000/002756 1999-08-11 2000-08-10 Hot-gas engine with pistons that work inside one another WO2001012970A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2001517041A JP2003507618A (en) 1999-08-11 2000-08-10 Hot gas engine with multiple pistons moving relative to each other
DE10082399T DE10082399D2 (en) 1999-08-11 2000-08-10 Hot gas engine with reciprocating pistons

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE19938023.6 1999-08-11
DE1999138023 DE19938023C2 (en) 1999-08-11 1999-08-11 Hot gas engine with a working piston that moves within a positive displacement piston
DE2000116707 DE10016707C2 (en) 1999-08-11 2000-03-29 Hot gas engine with a working piston that moves within a positive displacement free piston
DE10016707.1 2000-03-29
DE10037167.1 2000-07-20
DE10037167 2000-07-20

Publications (1)

Publication Number Publication Date
WO2001012970A1 true WO2001012970A1 (en) 2001-02-22

Family

ID=27213791

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2000/002756 WO2001012970A1 (en) 1999-08-11 2000-08-10 Hot-gas engine with pistons that work inside one another

Country Status (3)

Country Link
JP (1) JP2003507618A (en)
DE (1) DE10082399D2 (en)
WO (1) WO2001012970A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10050828C1 (en) * 2000-10-09 2002-06-13 Enerlyt Potsdam Gmbh Double-action single-cylinder hot gas engine with inner and outer pistons has two compression cavities and two expansion cavities
EP1306539A2 (en) * 2001-10-24 2003-05-02 Enerlyt Potsdam GmbH Two cycle hot gas engine
CN102094708A (en) * 2010-12-20 2011-06-15 罗吉庆 Self-cooling backheating movable cylinder fuel-air engine and Stirling engine
WO2012062231A1 (en) * 2010-11-09 2012-05-18 Libis Jiri Double acting displacer with separate hot and cold space and the heat engine with a double acting displacer
DE10248785B4 (en) * 2002-10-15 2013-01-17 STIP - Stirling Technologie Institut Potsdam gemeinnützige GmbH Two-cycle hot gas engine with two moving parts
DE10329977B4 (en) * 2002-10-15 2013-10-24 Andreas Gimsa 2-cycle hot gas engine with increased compression ratio

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1128860A (en) 1914-05-08 1915-02-16 George W Stahl Caloric engine.
US4248050A (en) * 1980-01-22 1981-02-03 The United States Of America As Represented By The Secretary Of The Army Double-yoke balanced compressor
JPS60101249A (en) * 1983-11-07 1985-06-05 Matsushita Electric Ind Co Ltd Stirling engine
US4683723A (en) * 1986-03-25 1987-08-04 Kawasaki Jukogyo Kabushiki Kaisha Heat activated heat pump
EP0345841A1 (en) * 1988-05-19 1989-12-13 Koninklijke Philips Electronics N.V. Piston engine, and a compression device provided with two piston engines and a cryogenic cooler
US4945726A (en) * 1989-08-23 1990-08-07 Sunpower, Inc. Leaky gas spring valve for preventing piston overstroke in a free piston stirling engine
US5022229A (en) * 1990-02-23 1991-06-11 Mechanical Technology Incorporated Stirling free piston cryocoolers
EP0741232A1 (en) * 1995-05-03 1996-11-06 Richard Weiss 3 chamber cylinder
DE19938023A1 (en) 1999-08-11 2000-04-27 Enerlyt Potsdam Gmbh En Umwelt Stirling motor has working piston moving in displacement piston inside outer rigid displacement cylinder, and short-term heat store to utilize residual heat

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1128860A (en) 1914-05-08 1915-02-16 George W Stahl Caloric engine.
US4248050A (en) * 1980-01-22 1981-02-03 The United States Of America As Represented By The Secretary Of The Army Double-yoke balanced compressor
JPS60101249A (en) * 1983-11-07 1985-06-05 Matsushita Electric Ind Co Ltd Stirling engine
US4683723A (en) * 1986-03-25 1987-08-04 Kawasaki Jukogyo Kabushiki Kaisha Heat activated heat pump
EP0345841A1 (en) * 1988-05-19 1989-12-13 Koninklijke Philips Electronics N.V. Piston engine, and a compression device provided with two piston engines and a cryogenic cooler
US4945726A (en) * 1989-08-23 1990-08-07 Sunpower, Inc. Leaky gas spring valve for preventing piston overstroke in a free piston stirling engine
US5022229A (en) * 1990-02-23 1991-06-11 Mechanical Technology Incorporated Stirling free piston cryocoolers
EP0741232A1 (en) * 1995-05-03 1996-11-06 Richard Weiss 3 chamber cylinder
DE19938023A1 (en) 1999-08-11 2000-04-27 Enerlyt Potsdam Gmbh En Umwelt Stirling motor has working piston moving in displacement piston inside outer rigid displacement cylinder, and short-term heat store to utilize residual heat

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 009, no. 249 (M - 419) 5 October 1985 (1985-10-05) *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10050828C1 (en) * 2000-10-09 2002-06-13 Enerlyt Potsdam Gmbh Double-action single-cylinder hot gas engine with inner and outer pistons has two compression cavities and two expansion cavities
EP1306539A2 (en) * 2001-10-24 2003-05-02 Enerlyt Potsdam GmbH Two cycle hot gas engine
EP1306539A3 (en) * 2001-10-24 2003-10-22 Enerlyt Potsdam GmbH Two cycle hot gas engine
US6968688B2 (en) * 2001-10-24 2005-11-29 Enerlyt Potsdam Gmbh Two-cycle hot-gas engine
DE10248785B4 (en) * 2002-10-15 2013-01-17 STIP - Stirling Technologie Institut Potsdam gemeinnützige GmbH Two-cycle hot gas engine with two moving parts
DE10329977B4 (en) * 2002-10-15 2013-10-24 Andreas Gimsa 2-cycle hot gas engine with increased compression ratio
WO2012062231A1 (en) * 2010-11-09 2012-05-18 Libis Jiri Double acting displacer with separate hot and cold space and the heat engine with a double acting displacer
CN102094708A (en) * 2010-12-20 2011-06-15 罗吉庆 Self-cooling backheating movable cylinder fuel-air engine and Stirling engine

Also Published As

Publication number Publication date
DE10082399D2 (en) 2001-12-13
JP2003507618A (en) 2003-02-25

Similar Documents

Publication Publication Date Title
EP1917434B1 (en) 4-cycle stirling engine with two double piston units
DE60224261T2 (en) DRIVE UNIT WITH LINEAR LIFTING MOVEMENT BASED ON A STIRLING ENGINE AND METHOD USED IN THE DRIVE SYSTEM
DE102006043250A1 (en) Multi-cylinder free piston Stirling engines and heat pumps in alpha arrangement with graduated pistons
EP0500992B1 (en) Cryogenic refrigerator
WO2001012970A1 (en) Hot-gas engine with pistons that work inside one another
EP1306539B1 (en) Two cycle hot gas engine
EP0188742A2 (en) Heat engine
WO2014023722A2 (en) Heat engine and thermodynamic cycle for converting heat into useful work
EP1411235B1 (en) Two cycle hot gas engine with two movable parts
EP3942172B1 (en) Stirling engine
DE4429602C2 (en) Stirling engine
DE4424319C1 (en) Hot gas engine
DE102006021497A1 (en) Thermal engine for use as current generator, has connecting pipe connecting displacement and working cylinders with each other and exchanging working medium between cylinders, and regenerator arranged in displacement cylinder
DE10050828C1 (en) Double-action single-cylinder hot gas engine with inner and outer pistons has two compression cavities and two expansion cavities
DE10019108A1 (en) Oscillating piston drive
DE3834071C2 (en)
DE4320356A1 (en) Displacement-type Stirling heat engine
DE3709014A1 (en) Stirling engine with rotary piston situated in a gas-tight inner chamber of a housing
DE19502188C2 (en) Process for controlling the power of a heating and cooling machine
DE102020119548A1 (en) Double combustion chamber engine
DE10051115A1 (en) Pulse-tube cooler for cooling cryogenic spacecraft applications has given phase difference between compression cylinder and expansion cylinder
AT407774B (en) Internal combustion engine with a two-stage process
DE102004018782A1 (en) Two cycle hot gas engine has a working piston coaxial to a compression piston and linked by flexible means
DE3508689A1 (en) Heat engine
DE10248785B4 (en) Two-cycle hot gas engine with two moving parts

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): CN DE JP US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE

ENP Entry into the national phase

Ref document number: 2001 517041

Country of ref document: JP

Kind code of ref document: A

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 09807199

Country of ref document: US

REF Corresponds to

Ref document number: 10082399

Country of ref document: DE

Date of ref document: 20011213

WWE Wipo information: entry into national phase

Ref document number: 10082399

Country of ref document: DE

122 Ep: pct application non-entry in european phase