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:
Dec. 12, 1989
Filed:
Dec. 03, 1987
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A rotary type hydraulic damper for motorcycle suspension application is disclosed in which a shaft and a housing each containing oppositely extending vanes are arranged for relative rotational movement. The vanes cooperate to define alternately spaced expansion and compression chambers between which hydraulic fluid is passed in response to relative movement between the shaft and the housing. According to one aspect of the invention, a manifold arrangement includes the interconnection of the expansion chambers at one end of the housing and that of the compression chambers at the other end thereof, and a throttling device restricts the flow of fluid between the respective chambers to provide a damping force generator. According to another aspect of the invention the damper shaft provides structural support for the motorcycle drive sprocket, whereby strength requirements for the sprocket bearing case are reduced.