发明授权
- 专利标题： Fuel injection device
- 专利标题（中）： 燃油喷射装置
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申请号： US13318527申请日： 2011-03-31
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公开(公告)号： US09127629B2公开(公告)日： 2015-09-08
- 发明人: Masato Yamada , Yoichi Kobane , Naofumi Adachi , Tsukasa Yamashita
- 申请人： Masato Yamada , Yoichi Kobane , Naofumi Adachi , Tsukasa Yamashita
- 申请人地址： JP Kariya
- 专利权人： DENSO CORPORATION
- 当前专利权人： DENSO CORPORATION
- 当前专利权人地址： JP Kariya
- 代理机构： Nixon & Vanderhye P.C.
- 优先权： JP2010-80838 20100331; JP2010-270647 20101203
- 国际申请： PCT/JP2011/001970 WO 20110331
- 国际公布： WO2011/122051 WO 20111006
- 主分类号： F02M61/10
- IPC分类号： F02M61/10 ; F02M61/00 ; F02M47/02 ; F02M61/16
摘要：
A fuel injection device (100) includes a control body (40) provided with an injection hole (44), a nozzle needle (60) that opens or closes the injection hole (44), a pressure control chamber (53) controlling a movement of the nozzle needle (60), an inflow channel (52) through which high-pressure fuel is introduced to the pressure control chamber (53), an outflow channel (54) through which the fuel from the pressure control chamber (53) is discharged, and a floating plate (70) that opens or closes the inflow channel (52). In the fuel injection device (100), the control body (40) includes a cylinder (56) defining the pressure control chamber (53) in a radial direction thereof, and an inner wall portion (56a) of the cylinder (56) includes a communication groove (57a) which causes an inflow chamber (53a) that is provided within the pressure control chamber (53) at a side of the inflow channel (52) relative to the floating plate (70), to communicate with a back pressure chamber (53b) that is provided within the pressure control chamber (53) at a side of the nozzle needle (60) relative to the floating plate (70).
公开/授权文献
- US20120042852A1 FUEL INJECTION DEVICE 公开/授权日：2012-02-23