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. 16, 1986
Filed:
Jul. 26, 1984
Applicant:
Inventors:
Masayuki Kodama, Hachiohji, JP;
Kenichi Yamada, Mitaka, JP;
Assignee:
Fuji Jukogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H / ; F16H / ; F16H / ; B60K / ;
U.S. Cl.
CPC ...
7475 / ; 74762 ; 74688 ; 74866 ; 7466 / ; 180247 ;
Abstract
An overdrive system for a four-wheel drive vehicle has an automatic transmission the output of which is transmitted to front wheels and to rear wheels through a drive gear and a driven gear and a hydraulically operated four-wheel drive clutch. The system comprises an overdrive clutch for coupling an oil pump drive shaft of the automatic transmission to the driven gear. When the overdrive clutch is engaged, the rotation of the oil pump drive shaft is transmitted to the front wheels through the clutch and driven gear and drive gear for overdriving the vehicle.