Title:
ELECTROMAGNETIC FUEL INJECTION VALVE
Document Type and Number:
WIPO Patent Application WO/2023/119852
Kind Code:
A1
Abstract:
In an electromagnetic fuel injection valve (I), when a fuel filter (20) and an orifice member (21) are press-fitted onto the inner peripheral surface of a cylindrical fuel inlet portion (7), interference of press-fit allowances of the fuel filter (20) and orifice member (21) is prevented and press-fit fixation thereof is ensured. In the inner peripheral surface of the cylindrical fuel inlet portion (7), a first cylindrical press-fit surface (23) onto which the fuel filter (20) is press-fitted and a second cylindrical press-fit surface (24) which continuously extends to the outer end of the first cylindrical press-fit surface (23) via a stepped portion (25), which is larger in diameter than the first cylindrical press-fit surface (23), and onto which the orifice member (21) is press-fitted are formed.
Inventors:
OUCHI NORIHIDE (JP)
SUZUKI YUYA (JP)
NABESHIMA YASUHIKO (JP)
AZUMA KOHEI (JP)
SUZUKI YUYA (JP)
NABESHIMA YASUHIKO (JP)
AZUMA KOHEI (JP)
Application Number:
PCT/JP2022/039775
Publication Date:
June 29, 2023
Filing Date:
October 25, 2022
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
F02M55/02; F02M37/48; F02M51/08; F02M61/16
Foreign References:
| JP2007285283A | 2007-11-01 | |||
| JP2014169668A | 2014-09-18 | |||
| JP2004239245A | 2004-08-26 |
Attorney, Agent or Firm:
SATO & ASSOCIATES (JP)
Download PDF: