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:
Apr. 28, 2009
Filed:
Oct. 22, 2004
Tomihisa Tsuchiya, Toyota, JP;
Kenji Ohkubo, Toyota, JP;
Masaaki Yano, Nishikamo-gun, JP;
Iwao Taira, Nihonmatsu, JP;
Junichi Nakayama, Fujisawa, JP;
Tomihisa Tsuchiya, Toyota, JP;
Kenji Ohkubo, Toyota, JP;
Masaaki Yano, Nishikamo-gun, JP;
Iwao Taira, Nihonmatsu, JP;
Junichi Nakayama, Fujisawa, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi, JP;
NOK Corporation, Tokyo, JP;
Abstract
Leakage of a combustion gas is prevented by installing a seal ring in an annular groove provided in the outer peripheral surface of a fuel injection valve. Further, a combustion gas leaked from the seal ring is sealed in by providing a seal washer more on the rear end side of the fuel injection valve than the seal ring. Thus a combustion gas seal for an injection valve is provided, and the combustion gas seal is capable of exhibiting excellent sealing ability for a long term with a simple structure.