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. 28, 2014
Filed:
Dec. 04, 2009
Kiyokazu Nagata, Tokyo, JP;
Keigo Yasuda, Sagamihara, JP;
Masatoshi Fujise, Saitama, JP;
Kayaba Industry Co., Ltd., Tokyo, JP;
Abstract
A working fluid flow rate flowing from a second port () to a first port () is controlled using a solenoid (S). A pilot pin () of a pilot valve (V) driven by the solenoid (S) regulates an auxiliary pilot pressure. An opening of an auxiliary valve (V) is varied according to the auxiliary pilot pressure, whereby the auxiliary valve (V) causes working oil to flow out to the first port () from the second port () and varies a main pilot pressure according to the working oil flow rate. An opening of a main valve (V) is varied according to the main pilot pressure, whereby the main valve (V) causes the working oil to flow out to the first port () from the second port (). Precise flow control at a low flow rate and responsive flow control at a high flow rate are thereby realized.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile