Engines driven by liquified or compressed gas
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F01K-025/06
F01K-025/00
출원번호
US-0204292
(2001-02-15)
우선권정보
GB-0004007(2000-02-22)
국제출원번호
PCT/GB01/000619
(2001-02-15)
§371/§102 date
20021202
(20021202)
국제공개번호
WO01/063099
(2001-08-30)
발명자
/ 주소
Dearman,Peter Thomas
출원인 / 주소
Highview Enterprises Limited
대리인 / 주소
Barnes &
인용정보
피인용 횟수 :
3인용 특허 :
7
초록▼
An engine has a chamber (3) accommodating a rotor (5) providing shaft power from the expansion in the chamber ( 3) of a refrigerated or compressed drive fluid admitted to the chamber ( 3). A heat-exchange liquid is also admitted to the chamber (3). The heat-exchange liquid gives up heat energy to t
An engine has a chamber (3) accommodating a rotor (5) providing shaft power from the expansion in the chamber ( 3) of a refrigerated or compressed drive fluid admitted to the chamber ( 3). A heat-exchange liquid is also admitted to the chamber (3). The heat-exchange liquid gives up heat energy to the expanding drive fluid in the chamber (3), and the cooled heat-exchange fluid is withdrawn from the chamber by a return pipe (16), passed through a heat exchanger (20) to raise its temperature to ambient and then reintroduced into the chamber (3).
대표청구항▼
What is claimed is: 1. An engine comprising an expansion chamber, the chamber accommodating a drive member movable within a housing, the drive member being movable with respect to the housing to produce shaft power, the engine further comprising inlet means for admitting to the chamber a drive flui
What is claimed is: 1. An engine comprising an expansion chamber, the chamber accommodating a drive member movable within a housing, the drive member being movable with respect to the housing to produce shaft power, the engine further comprising inlet means for admitting to the chamber a drive fluid, comprising a refrigerated liquified gas, and also for admitting to the chamber a heat-exchange liquid, outlet means for withdrawing the heat-exchange liquid, in a cooled state, from the chamber and a heat exchanger for increasing the temperature of the withdrawn heat-exchange liquid prior to re-circulation of the heat-exchange liquid through the chamber, in use the drive fluid expanding in the chamber and the heat-exchange liquid giving up heat energy to the expanding to a gaseous state drive fluid, the expansion of the drive fluid, in the expansion chamber, causing the generation of shaft power by the engine. 2. An engine according to claim 1, wherein the drive fluid is liquified nitrogen, liquified air, liquified carbon dioxide or a mixture thereof. 3. An engine according to claim 1, wherein the drive member is rotatably mounted in the housing. 4. An engine according to claim 3, wherein the drive member carries vanes which engage the inner periphery of the housing as the member rotates. 5. An engine according to claim 1, wherein the drive member is a piston and the housing is a cylinder within which the piston is reciprocatable, the piston driving a crankshaft to produce the shaft power. 6. An engine according to claims 1 , wherein the heat exchanger has a length of flexible pipe or tube through which the heat-exchange fluid flows, drive means being provided to apply a repetitive flexing movement to the pipe or tube to prevent the accumulation of ice on the external surface of the pipe or tube. 7. A method of generating shaft power from a drive fluid, comprising a refrigerated liquified gas, the method comprising admitting the drive fluid to an expansion chamber, allowing the drive fluid to expand in the chamber to produce shaft power, wherein a heat-exchange liquid is additionally admitted to the chamber where the heat-exchange liquid gives up heat energy to the expanding drive fluid, the cooled heat-exchange liquid being withdrawn from the chamber, heated and re-circulated to the chamber. 8. A method according to claim 7, wherein the heat-exchange liquid is at or close to ambient temperature when it is supplied to the chamber. 9. A method according to claim 7, wherein the drive fluid is admitted to the chamber in a liquid state and expands to a gaseous state in the chamber. 10. A method according to claim 9, wherein the drive fluid is a liquified gas or a liquified mixture of gases. 11. A method according to claim 10, wherein the gas is nitrogen or carbon dioxide, and the mixture of gases is air. 12. A method according to claim 7, wherein the drive fluid is a compressed gas or mixture of gases. 13. A method according to claim 12, wherein the gas is nitrogen, or the mixture of gases is air. 14. An engine according to claim 1, in which said shaft power is caused by the expansion of the drive fluid against the drive member. 15. An engine according to claim 1, in which the inlet means is operable to admit the heat exchange liquid to the chamber prior to the introduction of the liquefied, refrigerated gas. 16. A method according to claim 7 in which the heat exchange liquid is admitted to the chamber prior to the drive fluid.
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이 특허에 인용된 특허 (7)
Long Aden B. (P. O. Box 221 Hamilton MT 59840), Air-water power generator.
Glen John S. (Deep River FL CAX) Edwards Thomas C. (Rockledge FL), Heat engine, refrigeration and heat pump cycles approximating the Carnot cycle and apparatus therefor.
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