IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0885896
(1992-05-20)
|
발명자
/ 주소 |
- Fellows Oscar L. (P.O. Box 201207 Austin TX 78720)
|
인용정보 |
피인용 횟수 :
11 인용 특허 :
0 |
초록
▼
A radial, hot-gas engine which derives the necessary phase angle between hot and cold cylinders by locating them ninety degrees apart around the circumference of the crankcase, thereby eliminating complicated piston connecting rod linkages and permitting use of a simple eccentric and roller-follower
A radial, hot-gas engine which derives the necessary phase angle between hot and cold cylinders by locating them ninety degrees apart around the circumference of the crankcase, thereby eliminating complicated piston connecting rod linkages and permitting use of a simple eccentric and roller-follower drive arrangement between pistons and crankshaft. The radial design permits use of the crankcase as a pressure vessel and storage reservoir for the working fluid while keeping crankcase mass low relative to conventional engine designs. The invention also eliminates critical seals by application of an integral pump that scavenges working fluid from the crankcase reservoir and pressurizes the working cylinders when the engine is started, and maintains working pressure while the engine is in operation. Check valves, relief valves and an unloader valve arrangement control pressure, and equalize the pressure across the pistons when the engine is turned off by allowing the working fluid to return to the crankcase reservoir. An internal rotor winding resides within the crankshaft eccentric, and forms half of a combination starting motor/generator and electric transmission. Crankcase sections, each with its own array of pistons, cylinders and starter/generator windings, may be ganged to increase engine displacement and power.
대표청구항
▼
A radial, hot-gas engine of the stirling cycle class, comprised of a plurality of working cylinders of even number, said cylinders being disposed on perpendicular planes around the perimeters of a multiplicity of crankcase sections in the manner of a radial arc, half of said cylinders comprising hot
A radial, hot-gas engine of the stirling cycle class, comprised of a plurality of working cylinders of even number, said cylinders being disposed on perpendicular planes around the perimeters of a multiplicity of crankcase sections in the manner of a radial arc, half of said cylinders comprising hot-side heat exchangers fitted with heating means, and the remaining half comprising cold-side heat exchangers fitted with cooling means, each hot-side cylinder connected via a connecting means and regenerator apparatus through which a working fluid can pass, to a cold-side cylinder located ninety degrees around the perimeter of the crankcase from said hot-side cylinder, each pair of hot and cold cylinders so connected comprising a working pair, each of said cylinders housing a close fitting, sliding piston, said piston being fitted with sealing means, and with a roller-follower bearing assembly at the base; and passing through the central axis of the aforementioned crankcase, a crankshaft to which is affixed a multiplicity of eccentrics, said crankshaft being supported at multiple points by bearings which fit around the crankshaft, said bearings in turn being supported on their outside diameter by bearing support plates which are disposed at multiple points along the length of the sectional crankcase, between said crankcase sections and at the terminus ends of the consolidated crankcase; a pressure pump assembly comprised of a similarly designed crankcase, piston and cylinder arrangement, said pump piston being driven by one of the aforementioned eccentrics, the working fluid passages of said pump being connected to the engine crankcase and working cylinders via a connecting means which permits the pumping of a working fluid from the crankcase reservoir into the working cylinders of the engine, and its return from the working cylinders to the crankcase reservoir; a multiplicity of valves, said valves constituting the means by which the working fluid is controlled, and by which the internal working-fluid passages are isolated from the external environment, or connected to external charging and evacuation apparatus; filter apparatus and cooler apparatus which removes lubricant vapors from the working-fluid extracted from the crankcase; a cavity within the crankshaft eccentrics for housing electrical windings and pole-pieces, said windings and pole-pieces comprising the rotor of a combination electrical generator and starter motor; a fixed stator winding which is housed in the crankcase endplate, and disposed inside the aforementioned crankshaft rotor when the engine is assembled; an electric transmission which is housed in the crankcase endplate; and a cooler apparatus which cools the working fluid returned to the crankcase reservoir from the working cylinders.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.