Methods and designs for increasing efficiency in engines
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02G-003/00
F02C-005/00
출원번호
US-0398182
(2009-03-05)
등록번호
US-8578695
(2013-11-12)
발명자
/ 주소
Fluhler, Herbert U.
출원인 / 주소
Fluhler, Herbert U.
대리인 / 주소
Clodfelter, Mark
인용정보
피인용 횟수 :
2인용 특허 :
3
초록▼
An efficient thermal engine is disclosed. In some embodiments, a remainder of energy remaining after an expansion cycle is used to power a subsequent compression cycle. In other embodiments, novel configurations for a larger expansion volume than compression volume are provided. In addition, work of
An efficient thermal engine is disclosed. In some embodiments, a remainder of energy remaining after an expansion cycle is used to power a subsequent compression cycle. In other embodiments, novel configurations for a larger expansion volume than compression volume are provided. In addition, work of compression may be reduced in a compression cycle, and recovered in an expansion cycle.
대표청구항▼
1. A thermal engine for more efficient production of power comprising: a working medium in either a closed cycle or an open cycle with respect to its environment, and a series of thermo-cyclic phases further comprising;a cyclic intake means for aspirating a quantity of said working medium,a cyclic c
1. A thermal engine for more efficient production of power comprising: a working medium in either a closed cycle or an open cycle with respect to its environment, and a series of thermo-cyclic phases further comprising;a cyclic intake means for aspirating a quantity of said working medium,a cyclic compressing means for compressing said working medium,a cyclic means for reducing work of compression, with the reduction of said work of compression occurring exclusively during a single compression cycle or phase,a cyclic means for adding heat to said working medium to imbue said working medium with potential energy for the production of power, effect operation and maximize engine efficiency, said means for adding said heat being by internal combustion, external combustion or any hot heat source, anda cyclic expansion means for allowing said working medium to expand while developing mechanical energy,a cyclic means for temporarily storing energy from prior cycles of compression and/or expansion to help power said compression means for one or more subsequent cycles,a means for extracting power from said thermal engine, anda means for exhausting the spent working medium in open cycles or recovering the spent working medium in closed cycles. 2. The engine as set forth in claim 1 wherein said cyclic means for reducing work of compression further comprises a means for extracting heat during compression of said working medium. 3. The engine as set forth in claim 1 wherein said cyclic means for reducing work of compression further comprises configuring a compression ratio of said compression means smaller than an expansion ratio of said expansion means. 4. The engine as set forth in claim 1 wherein said cyclic means for reducing said work of compression further comprises holding a working medium valve open during up to about two thirds of a compression stroke, allowing up to about two thirds of said working medium to be expelled through said working medium valve, thereby reducing said work of compression by about two thirds, with further compression of said compression stroke compressing a remaining said working medium to support said cyclic means for adding heat and subsequent expansion and production of power. 5. The engine as set forth in claim 4 wherein said working medium valve is an intake working medium valve. 6. The engine as set forth in claim 4 wherein said working medium valve directs said expelled working medium to said cyclic means for temporarily storing energy. 7. The engine as set forth in claim 6 wherein said cyclic means for temporarily storing energy further comprises a pressurizable volume for receiving said expelled working medium under pressure and for releasing said pressurized working medium into an expansion volume of said cyclic expansion means during a latter portion of an expansion cycle. 8. The engine as set forth in claim 7 wherein said cyclic means for temporarily storing energy further comprises a heat transfer means for heating said expelled and pressurized working medium until released into an expansion volume during the latter portion of an expansion cycle, in order to obtain additional expansion during said latter portion of said expansion cycle, recuperating heat applied to the heat transfer means, and thereby increasing the power, torque and efficiency of the engine. 9. The engine as set forth in claim 8 wherein said heat transfer means further comprises connecting at least an exhaust from said cyclic expansion means to said heat transfer means, for heating said expelled and pressurized working medium, and recuperating heat from said exhaust. 10. The engine as set forth in claim 8 further comprising directing a heated said working medium to said cyclic expansion means to provide a boost of expansion near an end of said expansion cycle, thereby recovering work of compression of said expelled and pressurized working medium. 11. The engine as set forth in claim 1 wherein said cyclic means for adding heat adds only an amount of heat to provide less than a full expansion of said expansion means, with a remainder of heat to effect full expansion provided by said cyclic means for temporarily storing energy. 12. The engine of claim 1 further comprising a single constraining volume for said cyclic compression means and said cyclic expansion means, said volume at least as large as a maximum volume of said cyclic expansion means, and further comprising a volume modification means that sequentially instantiates each of said cyclic intake means, said cyclic compressing means, said cyclic means for reducing work of compression, said cyclic means for adding heat, said cyclic expansion means, said cyclic means for temporarily storing energy, said means for extracting power and said means for exhausting. 13. The engine of claim 12 further comprising a means to recycle heat from the exhausted working medium, or recycle heat from a separate additional adjunct heat source. 14. The engine of claim 12 wherein said constraining volume further comprises a single cylinder, with said volume modification means comprising a piston operating within said single cylinder, and configured so that a compression stroke of said piston within said single cylinder has a volume less than an expansion stroke of said piston within said single cylinder. 15. The engine of claim 14 further comprising configuring said volume modification means to expel up to about two thirds of at least said working medium from said cylinder prior to said compression stroke. 16. The engine of claim 1 further comprising a plurality of constraining volumes for said cyclic compression means and said cyclic expansion means, with a total volume of said plurality of constraining volumes being at least as large as a maximum volume of said cyclic expansion means, and further comprising a plurality of volume modification means that sequentially instantiate said cyclic intake means, said cyclic compressing means, said cyclic means for reducing work of compression, said cyclic means for adding heat, said cyclic expansion means, said cyclic means for temporarily storing energy, said means for extracting power and said means for exhausting so that said cyclic intake means, said cyclic compressing means, said cyclic means for reducing work of compression, said cyclic means for adding heat, said cyclic expansion means, said cyclic means for temporarily storing energy, said means for extracting power and said means for exhausting are distributed among said plurality of constraining volumes. 17. The engine of claim 16 further comprising a means to recycle heat from the exhausted working medium, or recycle heat from a separate additional adjunct heat source. 18. The engine of claim 16 wherein said plurality of constraining volumes further comprises a plurality of cylinders, with said plurality of associated volume modification means comprising a plurality of pistons, each operating within a respective one of said plurality of cylinders, said plurality of cylinders and respective said pistons configured to have a larger expansion stroke than a compression stroke. 19. The engine of claim 18 further comprising configuring said volume modification means to expel of up to about two thirds of at least said working medium from those said cylinders used for compression prior to said compression stroke.
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