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:
Oct. 24, 1989
Filed:
Feb. 10, 1988
Applicant:
Inventor:
Shintaro Uchiyama, Tokorozawa, JP;
Assignee:
Fuji Jukogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60K / ;
U.S. Cl.
CPC ...
180233 ; 74711 ; 180247 ; 180249 ; 192 / ; 36442405 ;
Abstract
A viscous coupling is provided in a power transmitting system for transmitting power of an engine to auxiliary driving wheels, and a lock device is provided for locking the viscous coupling so as to directly transmit the power to the auxiliary driving wheels. Driving torque of the engine is detected and compared with a predetermined driving torque and an output signal is produced when the detected driving torque exceeds the predetermined driving torque. An actuator responds to the output signal for operating the lock device to lock the viscous coupling.