FUEL INJECTOR
    1.
    发明申请
    FUEL INJECTOR 审中-公开

    公开(公告)号:US20200271078A1

    公开(公告)日:2020-08-27

    申请号:US16066811

    申请日:2016-12-02

    申请人: Robert Bosch GmbH

    IPC分类号: F02M51/06 F02M61/18

    摘要: The fuel injector according to the invention is distinguished in that a particularly high structural strength and vibration resistance of the valve seat body (5) is provided. The fuel injector (1) includes an excitable actuator for actuating a valve closing body, which forms a seal seat together with a valve seat surface (6) formed on a valve seat body (5), and injection openings (7), which are formed downstream of the valve seat surface (6), the injection openings (7) being introduced into a middle area (44) of the valve seat body (5) protruding outwardly like a cone in the injection direction. The cone-like axially protruding middle area (44) of the valve seat body (5) ends radially outside the orifice areas of all injection openings (7) in a recessed depression (47), from which, in turn, an axially protruding border area (48) of the valve seat body (5) adjoins radially outwardly, so that an overall wavy cone contour of the valve seat body (5) is formed in cross section. The fuel injector is particularly suitable for direct injection of fuel into a combustion chamber of a mixture-compressing spark-ignited internal combustion engine.

    System having a fuel distributor and multiple fuel injectors

    公开(公告)号:US10648439B2

    公开(公告)日:2020-05-12

    申请号:US14397383

    申请日:2013-03-22

    申请人: Robert Bosch GmbH

    IPC分类号: F02M61/14 F02M41/00 F02M61/16

    摘要: A system, which is used especially as a fuel injection system for the high-pressure injection in internal combustion engines, includes a fuel distributor and a plurality of fuel injectors. Each fuel injector is situated on a cup of the fuel distributor. At least one of the fuel injectors is fastened to the associated cup by a holding element. The holding element has an at least essentially straight first leg and an at least essentially straight second leg. The cup includes at least one recess, which extends through a wall of the cup. The first leg and the second leg are guided through the at least one recess. Furthermore, the connection sleeve of the fuel injector has a collar, which is braced on the first leg of the holding element and on the second leg of the holding element in order to secure the fuel injector on the cup.

    ARRANGEMENT WITH A FUEL DISTRIBUTOR AND MULTIPLE FUEL INJECTION VALVES
    5.
    发明申请
    ARRANGEMENT WITH A FUEL DISTRIBUTOR AND MULTIPLE FUEL INJECTION VALVES 审中-公开
    燃油分配器和多个燃油喷射阀的安装

    公开(公告)号:US20150083082A1

    公开(公告)日:2015-03-26

    申请号:US14396607

    申请日:2013-04-02

    申请人: Robert Bosch GmbH

    IPC分类号: F02M55/04 F02M55/02 F02M55/00

    摘要: A fuel injection system has a fuel distributor and multiple fuel injection valves each disposed on a cup of the fuel distributor. At least one injection valve is mounted on the associated cup by way of at least one holding element. An abutment surface is provided on the outer side of the cup. A support surface is configured on the underside of the cup. The holding element is moreover configured as a holding clamp. An abutment surface is provided on an outer side of the fuel injection valve. The holding clamp engages on the one hand behind the abutment surface of the cup and on the other hand behind the abutment surface of the fuel injection valve. The holding clamp furthermore pushes the fuel injection valve toward the support surface.

    摘要翻译: 燃料喷射系统具有燃料分配器和多个燃料喷射阀,每个燃料分配器设置在燃料分配器的杯上。 至少一个注射阀通过至少一个保持元件安装在相关联的杯上。 在杯的外侧设置有邻接表面。 支撑表面配置在杯的下侧。 此外,保持元件构造为保持夹具。 在燃料喷射阀的外侧设置有抵接面。 保持夹一方面在杯子的邻接表面后面接合,另一方面在燃料喷射阀的邻接表面之后。 夹持夹具还将燃料喷射阀推向支撑表面。