The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 19, 2005
Filed:
Feb. 27, 2002
Katsuyoshi Terakado, Ibaraki, JP;
Mizuho Yokoyama, Hitachinaka, JP;
Arata Kagiyama, Ibaraki, JP;
Noboru Baba, Hitachiohta, JP;
Masahiro Souma, Hitachi, JP;
Katsuyoshi Terakado, Ibaraki, JP;
Mizuho Yokoyama, Hitachinaka, JP;
Arata Kagiyama, Ibaraki, JP;
Noboru Baba, Hitachiohta, JP;
Masahiro Souma, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An electronic fuel injector capable of supplying fuel in a stable manner is provided by employing a swirler, which is manufactured at a lower cost and has durability, and by ensuring superior wear resistance of the swirler and a valve member provided on a movable part, which is put into frictional contact with the swirler. The electronic fuel injector comprises a movable part, a valve member, a valve seat, a swirler, a stopper, a stator core, a casing, a spring, and an electromagnetic coil. A valve member is provided at a fore end of the movable part. The swirler serves not only to swirl fuel, but also to guide movement of the valve member provided at the fore end of the movable part. The swirler is formed of a powder sintered compact of martensitic stainless steel having corrosion resistance and wear resistance.