NOZZLE PLATE FOR FUEL INJECTION UNIT
    70.
    发明申请

    公开(公告)号:US20170292489A1

    公开(公告)日:2017-10-12

    申请号:US15513026

    申请日:2015-07-16

    发明人: Koji NOGUCHI

    IPC分类号: F02M61/18 F02M61/08 B05B1/34

    摘要: A nozzle hole of a nozzle plate is connected to a fuel injection nozzle of a fuel injection unit through a swirl chamber and first and second fuel guide grooves opened to the swirl chamber. The swirl chamber is an oval recess provided with the nozzle orifice in its center. A first fuel guide groove is opened to one end side of a major axis of the oval recess, and a second fuel guide groove is opened to the other end side of the major axis of the oval recess. The first and second fuel guide grooves are formed such that the same amount of fuel flows to the swirl chamber. The same amount of fuel flowing from the first and second fuel guide grooves to the swirl chamber is guided to the nozzle orifice at the same time while revolving inside the swirl chamber in the same direction.