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公开(公告)号:US5967123A
公开(公告)日:1999-10-19
申请号:US29973
申请日:1998-03-10
Applicant: Manfred Ruoff , Helmut Rembold , Hans-Peter Stiefel , Gottlob Haag , Karl Gmelin , Volkmar Goldschmitt , Karlheinz Schmidtpeter , Matthias Einecke , Uwe Mueller
Inventor: Manfred Ruoff , Helmut Rembold , Hans-Peter Stiefel , Gottlob Haag , Karl Gmelin , Volkmar Goldschmitt , Karlheinz Schmidtpeter , Matthias Einecke , Uwe Mueller
CPC classification number: F02M59/44 , F02M37/04 , F04B1/0443
Abstract: A piston pump for pumping fuel in which a risk of fuel getting into the area of a shaft seal is limited. The fuel pump includes a separation chamber which is provided between a shaft seal and a fuel chamber that contains fuel. Located in the separation chamber is for instance air as a separator means, and the separation chamber communicates with an air inlet of the engine. This assures that fuel cannot get into the area of the shaft seal or escape to the outside. The fuel pump is suitable in particular for internal combustion engines in which the fuel must be delivered at high pressure.
Abstract translation: PCT No.PCT / DE97 / 00777 Sec。 371日期1998年3月10日 102(e)1998年3月10日PCT PCT 1997年4月18日PCT公布。 公开号WO98 / 01673 日期1998年1月13日用于泵送燃料的活塞泵,其中进入轴封区域的燃料的风险受到限制。 燃料泵包括设置在轴封和包含燃料的燃料室之间的分离室。 位于分离室中的是例如作为分离装置的空气,分离室与发动机的进气口连通。 这确保燃料不能进入轴封的区域或逃逸到外部。 燃油泵特别适用于必须在高压下输送燃油的内燃机。