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公开(公告)号：US20150167604A1
公开(公告)日：2015-06-18
申请号：US14612575
申请日：2015-02-03
Applicant: Robert Bosch GmbH , Audi AG
Inventor： Dirk Hoefner , Sven Troester , Bernd Schroeder , Berthold Pfuhl , Maximilian Stichlmeir , Martin Laich
CPC classification number: F02M37/0047 , F02M21/0212 , F02M21/0245 , F02M43/00 , F02M53/00 , F02M59/00 , F02M63/0001 , F02M63/029 , F02M69/046
Abstract: In a fuel system of an internal combustion engine, a low-pressure delivery unit for the fuel, at least indirectly delivers fuel to at least one low-pressure injection device. The fuel system further provides a high-pressure delivery unit, which has a drive region and a delivery region and at least indirectly delivers fuel to at least one high-pressure injection device. According to the invention, the fuel is first delivered by the low-pressure delivery unit to the drive region of the high-pressure delivery unit and from there onward to the low-pressure injection device and/or to the delivery region of the high-pressure delivery unit.
Abstract translation: 在内燃机的燃料系统中，用于燃料的低压输送单元至少间接地向至少一个低压喷射装置输送燃料。 燃料系统还提供高压输送单元，其具有驱动区域和输送区域，并且至少间接地将燃料递送到至少一个高压注射装置。 根据本发明，燃料首先由低压输送单元输送到高压输送单元的驱动区域，并从那里向低压喷射装置和/或高压输送单元的输送区域输送， 压力输送单元。
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公开(公告)号：US09422897B2
公开(公告)日：2016-08-23
申请号：US14612575
申请日：2015-02-03
Applicant: Robert Bosch GmbH , Audi AG
Inventor： Dirk Hoefner , Sven Troester , Bernd Schroeder , Berthold Pfuhl , Maximilian Stichlmeir , Martin Laich
CPC classification number: F02M37/0047 , F02M21/0212 , F02M21/0245 , F02M43/00 , F02M53/00 , F02M59/00 , F02M63/0001 , F02M63/029 , F02M69/046
Abstract: In a fuel system of an internal combustion engine, a low-pressure delivery unit for the fuel, at least indirectly delivers fuel to at least one low-pressure injection device. The fuel system further provides a high-pressure delivery unit, which has a drive region and a delivery region and at least indirectly delivers fuel to at least one high-pressure injection device. According to the invention, the fuel is first delivered by the low-pressure delivery unit to the drive region of the high-pressure delivery unit and from there onward to the low-pressure injection device and/or to the delivery region of the high-pressure delivery unit.
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公开(公告)号：US20160319795A1
公开(公告)日：2016-11-03
申请号：US15210120
申请日：2016-07-14
Applicant: Robert Bosch GmbH
Inventor： Bernd Schroeder , Berthold Pfuhl , Peter Ropertz
CPC classification number: F02M63/005 , F02M59/46 , F02M63/0225 , F02M63/0245 , F02M63/0265
Abstract: A high pressure fuel pump for an internal combustion engine with direct fuel injection includes a pump housing, a pressure damper, and a pressure regulating valve. The pressure damper is connected to a pump inlet in a low pressure region via a first bore in the housing, and to a pump outlet in a high pressure region via a second bore in the housing. The pressure regulating valve has a limit pressure, is disposed in the second bore, is configured to open in response to a pressure in the high pressure region being greater than the limit pressure, and is configured to close in response to the pressure in the high pressure region being less than the limit pressure, such that pressure in the high-pressure region is regulated toward a constant value of the limit pressure.
Abstract translation: 用于具有直接燃料喷射的内燃机的高压燃料泵包括泵壳体，压力阻尼器和压力调节阀。 压力阻尼器通过壳体中的第一孔连接到低压区域中的泵入口，并且经由壳体中的第二孔连接到高压区域中的泵出口。 压力调节阀具有极限压力，设置在第二孔中，构造成响应于高压区域中的压力大于极限压力而打开，并且被配置为响应于高压中的压力而闭合 压力区域小于极限压力，使得高压区域中的压力被调节到极限压力的恒定值。
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