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公开(公告)号：US3610377A
公开(公告)日：1971-10-05
申请号：US3610377D
申请日：1969-10-29
Applicant: GEN MOTORS CORP
Inventor： LEFFERT CHARLES B
IPC: F16D65/833 , F16D65/82
CPC classification number: F16D65/833 , F28D15/0275
Abstract: A brake cooling system in which the brake drum is in heat transfer contact with the evaporator section of a heat pipe arrangement. The heat transferred during low levels of braking is transmitted to ambient air or other heat exchange means by conduction and convection. When sufficiently severe braking loads occur so that the conduction mode of heat transfer will not carry away the heat at a sufficient rate, the heat pipe liquid is vaporized and builds up vapor pressure to bring the heat pipe into efficient operation. As the cooling system quickly shifts into this mode of operation the entire heat pipe assembly in effect suddenly increases its thermal conductivity by several orders of magnitude and the heat is rapidly carried away to the heat pipe condenser section, where it is then removed by a suitable heat exchanger arrangement.
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公开(公告)号：US3585421A
公开(公告)日：1971-06-15
申请号：US3585421D
申请日：1969-07-15
Applicant: GEN MOTORS CORP
Inventor： MUENCH NILS L , LEFFERT CHARLES B
IPC: H02N3/00
CPC classification number: H02N3/00
Abstract: An electrogasdynamic converter is attached to the exhaust port of an internal combustion reciprocating engine so that the exhaust gases assist in operation of the converter which produces a pulse of electrical energy for each pulse of exhaust gas. For a multicylinder engine, an EGD converter is provided for each cylinder and the converters are connected in parallel to produce a high voltage DC output or are connected in pairs with opposite polarities to provide a multiphase AC output.
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公开(公告)号：US3093567A
公开(公告)日：1963-06-11
申请号：US80295859
申请日：1959-03-30
Applicant: GEN MOTORS CORP
Inventor： JABLONSKI FRANCIS E , LEFFERT CHARLES B
CPC classification number: G21D7/04 , G21C3/40 , Y02E30/38 , Y10S376/901
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公开(公告)号：US3592297A
公开(公告)日：1971-07-13
申请号：US3592297D
申请日：1969-07-02
Applicant: GEN MOTORS CORP
Inventor： LEFFERT CHARLES B
CPC classification number: F16D65/84 , F16D2065/781
Abstract: A disc brake cooling arrangement in which the rotating brake disc friction surfaces are in heat transfer contact with the evaporator section of a heat pipe arrangement. The heat transferred during low levels of braking is transmitted to ambient air or other heat exchange means by conduction and convection. When sufficiently severe braking loads occur so that the conduction mode of heat transfer will not carry away the heat at a sufficient rate, the heat pipe liquid is vaporized and builds up vapor pressure to bring the heat pipe into efficient operation. As the cooling system quickly shifts into this mode of operation the entire heat pipe assembly in effect suddenly increases its thermal conductivity by several orders of magnitude and the heat is rapidly carried away to the heat pipe condenser section, where it is then removed by a suitable heat exchanger arrangement. The heat pipe assembly is provided as a part of each disc brake pad assembly, and is replaceable with the pad.
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公开(公告)号：US3683214A
公开(公告)日：1972-08-08
申请号：US3683214D
申请日：1970-05-25
Applicant: GEN MOTORS CORP
Inventor： LEFFERT CHARLES B
Abstract: For converting heat to electrical energy, a heat pipe is fitted with attractor, collector and wire electrodes to form an electrogasdynamic converter within the heat pipe. In one embodiment, a high voltage is supplied across the attractor and wire electrodes to produce a corona for ionizing the vapor within the heat pipe. In another, Uranium-235 in the heat pipe subject to a neutron flux produces fission fragments which ionize the vapor by bombardment.
Abstract translation: 为了将热量转换为电能，热管装配有吸引子，集电极和线电极，以在热管内形成电动力转换器。 在一个实施例中，跨越吸引器和线电极提供高电压以产生用于使热管内的蒸气电离的电晕。 另一方面，受到中子通量的热管中的铀-235产生裂变碎片，其通过轰击使蒸气电离。
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Patent Agency Ranking
公开(公告)号：US3670495A
公开(公告)日：1972-06-20
申请号：US3670495D
申请日：1970-07-15
Applicant: GEN MOTORS CORP
Inventor： LEFFERT CHARLES B
CPC classification number: F01K7/00
Abstract: A closed cycle vapor engine has evaporator and condensor elements utilizing liquid carrying wick means arranged to provide surfaces for the evaporation and condensation of the engine working fluid and to transport said fluid in liquid form from the condensor to a condensate pump and from the condensate pump to the evaporator. Vapor passages connect the evaporator and condensor with the intake and exhaust openings of the expander, providing a closed system in which the evaporator and condensor operate essentially on the principle of a heat pipe.
Abstract translation: 封闭循环蒸汽发动机具有蒸发器和冷凝器元件，其利用液体承载芯装置，其布置成提供用于发动机工作流体的蒸发和冷凝的表面，并将液体形式的液体从冷凝器输送到冷凝水泵，并从冷凝泵输送到 蒸发器。 蒸气通道将蒸发器和冷凝器与膨胀机的进气和排气开口连接，提供了一种封闭系统，其中蒸发器和冷凝器基本上以热管的原理运行。
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公开(公告)号：US3621906A
公开(公告)日：1971-11-23
申请号：US3621906D
申请日：1969-09-02
Applicant: GEN MOTORS CORP
Inventor： LEFFERT CHARLES B
IPC: F28D15/06 , G05D23/185 , F28D15/00
CPC classification number: F28D15/06 , F28F2200/005
Abstract: In preferred form, a heat pipe joining a heat source and a heat sink through an evacuated control section. A reservoir is located in direct fluid communication with the evacuated control section and has a predetermined quantity of control fluid therein. A heat-pipe wick within the control section has its wetness varied in accordance with changes in the condition of the control fluid to vary the rate of heat transport between the heat source and heat sink by the heat pipe itself; ''''wetness'''' hereinafter being taken as the fraction of total interconnected void volume of the wick that is filled with liquid. In a test device heat transport in the ''''off'''' state was increased by a factor of approximately 6 in the ''''on'''' state.
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公开(公告)号：US3592298A
公开(公告)日：1971-07-13
申请号：US3592298D
申请日：1969-07-02
Applicant: GEN MOTORS CORP
Inventor： LEFFERT CHARLES B , HAFSTAD LAWRENCE R
CPC classification number: F16D65/84 , F16D2065/781 , F16D2065/789
Abstract: A brake-cooling system in which the rotating brake friction surfaces are in heat transfer contact with the evaporator section of a heat pipe arrangement. The heat transferred during low levels of braking is transmitted to ambient air or other heat exchange means by conduction and convection. When sufficiently severe braking loads occur so that the conduction mode of heat transfer will not carry away the heat at a sufficient rate, the heat pipe liquid is vaporized and builds up vapor pressure to bring the heat pipe into efficient operation. As the cooling system quickly shifts into this mode of operation the entire heat pipe assembly in effect suddenly increases its thermal conductivity by several orders of magnitude and the heat is rapidly carried away to the heat pipe condenser section, where it is then removed by a suitable heat exchanger arrangement.
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公开(公告)号：US3480803A
公开(公告)日：1969-11-25
申请号：US3480803D
申请日：1965-10-20
Applicant: GEN MOTORS CORP
Inventor： JAMERSON FRANK E , LEFFERT CHARLES B , REES DAVID B
CPC classification number: H01J45/00
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10.发明授权
公开(公告)号：US3455781A
公开(公告)日：1969-07-15
申请号：US3455781D
申请日：1967-04-20
Applicant: GEN MOTORS CORP
Inventor： LEFFERT CHARLES B
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