[특허]Engine induction valve with reduced backflow

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특허 상세정보

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Engine induction valve with reduced backflow

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02B-033/04
미국특허분류(USC)	123/073.V; 137/512.15; 137/855; 137/543.15
출원번호	US-0948308 (2001-09-06)
발명자 / 주소	Holtzman, Barry L
인용정보	피인용 횟수 : 6 인용 특허 : 7

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This invention is an effective engine induction valve which provides a decrease in engine blowback while maintaining engine power. This valve uses a moveable member made from a heat-setting material, this member being bent into an elliptical curve when the member is in the closed position. This elliptical curve has an included angle at the edge of the member which opens toward the engine, this orientation being beneficial in reducing blowback. Using springs to limit the force attaching the moveable member to the valve body prevents unwanted buckling of this member when exposed to elevated temperature and fuel. An embodiment is described which provides a valve with a uniform frequency response at various operating conditions, especially different temperatures. en ring (84); an output shaft (108) rotatably mounted within said input member, said output shaft having a fan (110); a drive ring (74) coupled to said output shaft; a plurality of drive ring partial concentric hoops (76) coupled to said drive ring (74) by pressing each of said plurality of drive ring partial concentric hoops (76) into a groove (78) and bending each of said plurality of drive ring partial concentric hoops (76) over a drive ring tab (76a) contained in a drive ring pocket (87) on an outer side (80) of said drive ring (74); an impeller assembly (112) coupled to an electronic control unit coupled to said coil (62) for controlling an amount of electrical current flowing through said coil; a driven ring (84) coupled to said input member; a plurality of driven ring partial concentric hoops (90) coupled to said driven ring (84) by pressing each of said a plurality of driven ring partial concentric hoops (90) into a cur groove (92) and bending each of said plurality of driven ring partial concentric hoops (90) ova a driven ring tab (92a) contained in a pocket (94) on said driven ring (84); an output shaft (108) rotatably mounted within said input member, said output shaft having a fan (110); a drive ring (74) coupled to said output shaft; a plurality of drive ring partial concentric hoops (76) coupled to said drive ring (74) by pressing each of said plurality of drive ring partial concentric hoops (76) into a groove (78) and bending each of said plurality of drive ring partial concentric hoops (76) over a drive ring tab (76a) contained in a drive ring pocket (87) on an outer side (80) of said drive ring (74); an impeller assembly (112) coupled to said driven ring (84) used to pump an engine coolant from an engine coolant chamber (121) to an engine; a working chamber (91) located between said drive ring (74) and said driven ring (84); and a quantity of magnetorheological fluid within said working chamber (91), wherein said drive ring (74) is driven by a shearing of said quantity of magnetorheological fluid said driven ring (84); a working chamber (91) located between said chive ring (74) and said driven ring (84); and a quantity of magnetorheological fluid within said working chamber (91); coupling an electronic control unit to said electronic coil (62) of said water-cooled magnetorheological fluid controlled combination fan drive and water pump (60); and activating said electronic coil (62) to increase the rotational speed of said fan (110). 9. The method of claim 8, wherein the step of operatively coupling a water-cooled magnetorheological fluid controlled combination fan drive and water pump (60) to the engine comprises the step of coupling the engine to an input member of said water-cooled magnetorheological fluid controlled combination fan drive and water pump (60) via a drive belt (100), wherein said drive belt (100) is capable of rotating in response to engine speed, thereby rotating said input member. 10. The method of claim 8, wherein the step of activating said electronic coil (62) to increase the rotational speed of said fan (110) and the rotational speed of said impeller assembly (112) comprises the steps of: determining a current engine operating speed and a current engine block temperature; transmitting said current operating speed and said current engine block temperature to said electronic control unit; determining an amount of electrical current to introduce to said electronic coil (62) as a function of said current engine operating speed and said current engine block temperature to achieve a desired rotational speed of said fan (110) and said impeller assembly (112); directing the introduction of said amount of electrical current to said electronic coil (62) from said electronic control unit to achieve said desired rotational speed. 11. The method of claim 10, wherein the step of determining an amount of current to introduce to said electronic coil (62) comprises the step of determ ining an amount of current to introduce to said electronic coil (62) as a function of said current engine operating speed, said current engine block temperature, the size of said working chamber (91), the flow rate of said quantity of magnetorheological fluid through said working chamber (91), and the composition of said quantity of magnetorheological fluid to achieve a desired rotational speed of said fan (110) and said impeller assembly (112). 12. The method of claim 10, wherein the step of directing the introduction of said amount of electrical current through said electrical coil (62) comprises the step of directing the introduction of said amount of electrical current though said electronic coil (62) to create a magnetic field within a working chamber (91) of said water-cooled magnetorheological fluid controlled combination fan drive and water pump (60), wherein said magnetic field changes said quantity of magnetorheological fluid flowing though said working chamber (91) from a free flowing liquid to a semi-solid state magnetorheological fluid, wherein said semi-solid state magnetorheological fluid has a higher viscosity than said free flowing liquid, said higher viscosity thereby creating additional torque to rotate a drive ring (74) closely coupled with a driven ring (84) within said working chamber (91), thereby increasing the rotation of said fan (110) and said impeller assembly (112) coupled with said drive ring (74). 13. A method of controlling engine temperature, the method comprising the steps of: operatively coupling a water-cooled magnetorheological fluid controlled combination fan drive and water pump (60) to the engine said water-cooled magnetorheological fluid controlled combination fan drive and water pump (60) having an input member coupled to a drive belt (100); a support housing (64) closely coupled to said input member having a coil (62); a driven ring (84) coupled to said input member; a plurality of driven ring partial concentric hoops (90) coupled to said driven ring (84) by pressing each of said a plurality of driven ring partial concentric hoops (90) into a cur groove (92) and bending each of said plurality of driven ring partial concentric hoops (90) over a driven ring tab (92a) contained in a pocket (94) on said driven ring (84); an output shaft (108) rotatably mounted within said input member, said output shaft having a fan (110); a drive ring (74) coupled to said output shaft; a plurality of drive ring partial concentric hoops (76) coupled to said drive ring (74) by pressing each of said plurality of drive ring partial concentric hoops (76) into a groove (78) and bending each of said plurality of drive ring partial concentric hoops (76) over a drive ring tab (76a) contained in a drive ring pocket (87) on an outer side (80) of said drive ring (74); an impeller assembly (112) coupled to said driven ring (84); a working chamber (91) located between said drive ring (74) and said driven ring (84); and a quantity of magnetorheological fluid within said working chamber (91); and increasing the viscosity of a quantity of magnetorheological fluid flowing through a working chamber (91) of said water-cooled magnetorheological fluid controlled combination fan drive and water pump (60), thereby increasing the torque to drive a drive ring (74) of said water-cooled magnetorheological fluid controlled combination fan drive and water pump (60), said drive ring (74) being coupled to a fan (110), thereby increasing the rotational speed of said fan (110). 14. The method of claim 13, wherein the step of increasing the viscosity of said quantity of magnetorheological fluid contained within said working chamber (91) comprises the step of increasing the viscosity of said quantity of magnetorheological fluid by changing said quantity of magnetorheological fluid flowing through said working chamber (91) from a free flowing liquid to a semi-solid state. 15. The method of claim 14, wherein the step of increasing the

이 특허에 인용된 특허 (7)

이 특허를 인용한 특허 피인용횟수: 6

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Engine induction valve with reduced backflow

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이 특허에 인용된 특허 (7)

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Engine induction valve with reduced backflow

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이 특허에 인용된 특허 (7)

이 특허를 인용한 특허 피인용횟수: 6

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