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:
Nov. 28, 1995
Filed:
Aug. 27, 1993
Fujikura Ltd., Tokyo, JP;
Abstract
There is disclosed a fluid clutch device for controlling transmission of motive power of a vehicular engine to accessory equipment such as an oil pump for a power steering mechanism or an air compressor for an air conditioner. The clutch device includes first and second members arranged for relative rotation about a common axis. The first member is operated by the vehicular engine while the second member is constructed to operate the accessory equipment. The first and second members are accommodated in a hermetically sealed clutch casing which is filled with an electroviscous fluid. A source of high voltage potential is provided for applying a voltage to the electroviscous fluid, and various units for generating information regarding driving of the accessory equipment are also used. A clutch control unit is electrically connected to the source of high voltage potential and the information-generating units, and regulates the voltage applied to the electroviscous fluid based on the information generated from the information-generating units to vary a driving power for operating the accessory equipment.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile