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:
Jul. 18, 1989
Filed:
May. 18, 1988
Applicant:
Inventors:
Ryuichi Komine, Osaka, JP;
Osamu Sano, Osaka, JP;
Assignee:
Koyo Seiko Co., Ltd., Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
B62D / ;
U.S. Cl.
CPC ...
180142 ; 180143 ;
Abstract
Apparatus for controlling the steering power of a power steering system of a vehicle wherein there are employed two variable throttles and a fixed throttle between the variable throttles connected to a pump discharge, each variable throttle having an opening controlled in accordance with the vehicle speed or a steering angle and regulated oil pressure between the fixed throttles and one of the variable throttles is led to a hydraulic reaction chamber when the vehicle is running at low or middle speed and regulated oil pressure between the two variable throttles is led to the hydraulic reaction chamber when the vehicle is running at a high speed.