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. 14, 2011
Filed:
Dec. 12, 2007
Shigenobu Sekiya, Saitama, JP;
Yoshitomo Azekatsu, Saitama, JP;
Shigenobu Sekiya, Saitama, JP;
Yoshitomo Azekatsu, Saitama, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
In a variable damper using magneto-rheological fluid that comprises a cylinder () filled with the fluid, a piston () slidably received in the cylinder and including an inner yoke (), an outer yoke () and a coil (), a piston rod () having an inner end attached to the piston and an outer end extending out of the cylinder and a magnetic valve formed in a gap between the inner and outer yokes, at least one of the outer yoke and inner yoke consisting of at least two parts that are joined to each other in an axial direction. The two piece arrangement of the inner yoke or outer yoke allows the end plates to be omitted because the gap spacer can be installed without requiring end plates, and this contributes to a compact design and a favorable damping property. Also, the manufacturing and servicing of the damper can be simplified. When end plates () are used, the freedom in the positioning of the coil is increased.