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. 07, 2011
Filed:
Dec. 21, 2007
Satoshi Chikamatsu, Tokyo, JP;
Kouichi Watanabe, Tokyo, JP;
Satoshi Chikamatsu, Tokyo, JP;
Kouichi Watanabe, Tokyo, JP;
Kayaba Industry Co., Ltd., Tokyo, JP;
Abstract
A damping valve () resists a flow of fluid from a first fluid chamber () to a second fluid chamber () which are separated by a piston (). A partitioning member (-) partitions an inflow space (A, B) of a passage () in the first fluid chamber (). A spool () decreases a flow cross-sectional area of a flow path from the first fluid chamber () into the inflow space (A, B) according to a differential pressure between the fluid chambers. By ensuring a gap between the outer circumference of the valve disk () and the partitioning member (-) which permanently allows fluid to flow from the first chamber () into the inflow space (A, B), the damping force characteristic in a high speed region of piston displacement can be set independently of the damping force characteristic in other regions.