Invention Grant
- Patent Title: Fuel injection valve
- Patent Title (中): 燃油喷射阀
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Application No.: US11806729Application Date: 2007-06-04
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Publication No.: US07651039B2Publication Date: 2010-01-26
- Inventor: Keisuke Suzuki
- Applicant: Keisuke Suzuki
- Applicant Address: JP Kariya
- Assignee: Denso Corporation
- Current Assignee: Denso Corporation
- Current Assignee Address: JP Kariya
- Agency: Nixon & Vanderhye, PC
- Priority: JP2006-159256 20060608; JP2007-002516 20070110
- Main IPC: F02M47/02
- IPC: F02M47/02 ; F02M41/16 ; F02M61/10

Abstract:
A fuel injection valve includes a valve chamber, a control valve, an actuator, a control chamber, and a nozzle. The control valve is provided in the valve chamber. The actuator actuates the control valve. The control chamber is always communicated with the valve chamber through a communication passage. The nozzle has a needle for opening and closing an injection orifice, wherein the needle is biased in a valve closing direction for closing the injection orifice by pressure of fuel in the control chamber. High pressure fuel in a high-pressure fuel passage is introduced into the control chamber only through the communication passage in a state, where communication between the valve chamber and the high-pressure fuel passage is allowed by the control valve. The communication passage has a common orifice.
Public/Granted literature
- US20070284455A1 Fuel injection valve Public/Granted day:2007-12-13
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