Invention Grant
- Patent Title: Fuel injection valve
- Patent Title (中): 燃油喷射阀
-
Application No.: US12273335Application Date: 2008-11-18
-
Publication No.: US08128009B2Publication Date: 2012-03-06
- Inventor: Akio Shingu , Masayuki Aota , Tsuyoshi Munezane
- Applicant: Akio Shingu , Masayuki Aota , Tsuyoshi Munezane
- Applicant Address: JP Tokyo
- Assignee: Mitsubishi Electric Corporation
- Current Assignee: Mitsubishi Electric Corporation
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2008-134535 20080522
- Main IPC: B05B1/30
- IPC: B05B1/30

Abstract:
The objective of the present invention is to realize the structure, of a fuel injection valve, in which bouncing of the needle can be suppressed and the armature position can be fixed while the valve is closed, without increasing the number of components and the number of processes. In a fuel injection valve including an armature that is repelled or attracted by a core, by de-energizing or energizing a coil; a needle that opens or closes a valve seat in accordance with a reciprocal travel of the armature; and a valve-closing spring that biases the needle so as to close the valve, when the coil is de-energized, the needle and the armature are fixed in such a way that the armature can travel in an axis direction by a predetermined amount with respect to the needle, and the coil is preliminarily energized while the fuel injection valve is closed by the needle.
Public/Granted literature
- US20090289131A1 FUEL INJECTION VALVE Public/Granted day:2009-11-26
Information query