- 专利标题: Fuel injection valve
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申请号: US16795946申请日: 2020-02-20
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公开(公告)号: US11193464B2公开(公告)日: 2021-12-07
- 发明人: Hiroki Tanada , Naofumi Adachi , Masayuki Suzuki , Toshiaki Hijima , Motoya Kambara
- 申请人: DENSO CORPORATION
- 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: JPJP2017-161662 20170824,JPJP2018-134992 20180718
- 主分类号: F02M1/00
- IPC分类号: F02M1/00 ; F02M47/02 ; F02M63/00
摘要:
A fuel injection valve includes a needle valve that controls communication between a high pressure chamber and an injection hole, a follower valve provided inside a control chamber controlled by fuel pressure inside an intermediate chamber, and an open-close valve that controls communication between a first passage and a low pressure passage and communication between a second passage and the low pressure passage. The fuel injection valve is configured to control the gradient of the fuel injection rate from the injection hole with an improved configuration.
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