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:
Jun. 21, 1988
Filed:
Mar. 30, 1987
Applicant:
Inventor:
Junichiro Sakurai, Toyota, JP;
Assignee:
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Primary Examiner:
Int. Cl.
CPC ...
F04D / ;
U.S. Cl.
CPC ...
415 12 ; 415 48 ; 415131 ; 415157 ; 416 39 ; 416133 ;
Abstract
A water pump having a pump impeller and a cup-like disk disposed to be movable along a rotation shaft driven by the engine, a space for passing water being formed between the pump impeller and the cup-like disk, the pump impeller and the cup-like disk being engaged each other by the engagement of vanes and grooves formed at least one side of them respectively, the distance between the pump impeller and the cup-like disk being varied according to the change of water temperature or the change of rotation speed of the engine, thereby to make it possible to adjust the water flow rate of the pump.