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:
Aug. 26, 2003
Filed:
Feb. 13, 2002
Yasunori Kiriki, Chiryu, JP;
Takashi Iwanaga, Toyohashi, JP;
Denso Corporation, Kariya, JP;
Abstract
In a fuel injection nozzle for an internal combustion engine, a frictional force reducing member is interposed between a seating surface of a shoulder portion of a nozzle body and an inner seating surface of a bearing portion of a retaining nut, whereby a frictional force developed between both seating surfaces and can be diminished without performing a high-degree of surface machining on the inner seating surface of a bearing portion of the retaining nut, even if the surface roughness of the inner seating surface of a bearing portion of the retaining nut is large. Consequently, it is possible to prevent deformation of a slide portion of the nozzle needle which is attributable to a twist of the nozzle body caused by frictional force.