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. 07, 2009
Filed:
Dec. 21, 2004
Nobuo Aoki, Shiki, JP;
Kazuya Kubota, Higashimatsuyama, JP;
Takeshi Terada, Tsurugashima, JP;
Noriyuki Kobayashi, Higashimatsuyama, JP;
Nobuo Aoki, Shiki, JP;
Kazuya Kubota, Higashimatsuyama, JP;
Takeshi Terada, Tsurugashima, JP;
Noriyuki Kobayashi, Higashimatsuyama, JP;
Bosch Automotive Systems Corporation, Tokyo, JP;
Abstract
A fuel supply pump with a large fuel discharge amount and a tappet structure body, which are suitably used for an accumulated pressure-type fuel injection device that mechanically amplifies pressure, is provided. A fuel supply pump has a tappet structural body and a spring sheet, wherein a penetration portion for allowing passage of a lubricant or a fuel for lubrication therethrough by coordinating the tappet structure and the spring sheet is provided between a spring-holding chamber for holding a spring to be used for pulling up a plunger and a cam chamber for housing a cam to be used for moving the plunger up and down.