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. 29, 1989
Filed:
Apr. 29, 1987
Applicant:
Inventors:
Koh Uchida, Tokyo, JP;
Takashi Kurihara, Atsugi, JP;
Assignee:
Nissan Motor Co., Ltd., Yokohama, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F15B / ;
U.S. Cl.
CPC ...
9137 / ; 91443 ; 13762524 ; 13759612 ; 180142 ; 180143 ;
Abstract
A steering control valve for a power steering system for a vehicle includes a valve structure which defines a plurality of variable flow orifices as steering input torque is applied thereby creating pressure differential acting on fluid motor. A solenoid operated variable flow orifice valve is operable in response to a control factor, such as vehicle speed, other than the steering input torque defines a variable flow orifice connected in series with one of the plurality of variable flow orifices.