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. 19, 1980
Filed:
Nov. 28, 1978
Applicant:
Inventor:
Shunsaku Ohnishi, Toyota, JP;
Assignee:
Nippondenso Co., Ltd., Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B / ; F04B / ;
U.S. Cl.
CPC ...
417424 ; 417366 ; 417435 ;
Abstract
A motor fuel pump comprises a motor unit, a pump unit and a common driving shaft. The pump housing of the pump unit has a frustum-shaped ceiling with a central opening at the top thereof. The pump impeller has a flat member to which a plurality of outwardly extending blades are secured. Since the central opening of the frustum-shaped ceiling is approximately equal to the fringe of the flat member and opens therebove, vapor generated from the fuel in the pump housing is readily evacuated from the pump housing and cavitation may be prevented.