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:
Oct. 26, 1999
Filed:
Apr. 30, 1997
Applicant:
Inventors:
Motoya Ito, Hekinan, JP;
Takeshi Matsuda, Anjo, JP;
Assignee:
Denso Corporation, Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
411238 ; 4174237 ;
Abstract
A fuel pump is composed of a permanent-magnet motor section and a pump section. The yoke of the motor section is designed as a part of the magnetic circuit which is saturated with magnetic flux. The quantity of the discharged fuel is adjusted by covering from outside an auxiliary yoke which is changeable according to a difference between the actual quantity of the discharged fuel and a required quantity of the fuel.