To provide an electromagnetic fuel injection valve in which the strength of a coil assembly can be enhanced while the reduction in cross-sectional area of magnetic path of a coil housing is prevented, and moreover the sound insulating properties are excellent.
A first sound insulating resin layer 41 is formed at the outer periphery of the coil assembly 30, and the first sound insulating resin layer 41 and a coupler 42 are molded integrally to form the coil assembly 30 with the coupler 42. A bobbin 31 of the coil assembly 30 with the coupler 42 is fitted onto the outer peripheral surfaces of a valve housing 1 and a stationary core 5, and a sound insulating air layer 43 is formed between the fitted peripheral surfaces. The coil housing 45 for accommodating the coil assembly 30 with the coupler 42 is fitted and fixed to the valve housing 1 and the stationary core 5, and a second sound insulating resin layer 49 is formed to cover the outer periphery of the valve housing and the outer periphery of the root of the coupler 42.
| WO/2002/050428 | FUEL INJECTION VALVE |
| JP2003511609 | PROBLEM TO BE SOLVED: To adjust a flow rate in a fuel injection valve. |
| JP2000064929 | FUEL INJECTION VALVE |
MATSUO DAISUKE
SATO KAZUHIKO
| JP2006083808A | 2006-03-30 | |||
| JP2005098172A | 2005-04-14 | |||
| JPH1047198A | 1998-02-17 | |||
| JP2003166455A | 2003-06-13 | |||
| JP2005256639A | 2005-09-22 | |||
| JPH01277677A | 1989-11-08 | |||
| JP2005240731A | 2005-09-08 |
Kazuaki Niki
Nude Shima Shinji