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:
Mar. 05, 1985
Filed:
Feb. 19, 1982
Fujio Makita, Hachioji, JP;
Fuji Jukogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A system for preventing the overheating of an electromagnetic clutch of an internal combustion engine mounted on a vehicle caused by slipping of the clutch for a considerably long time. The electromagnetic clutch has a drive member secured to a crankshaft of the internal combustion engine, a driven member adjacent to the drive member, and a magnetizing coil provided in one of said members. The heat quantity generated in the clutch is calculated by an operation circuit. A clutch current control circuit is provided such that when the heat quantity exceeds a predetermined value, the electromagnetic clutch is applied with a rated clutch current to engage the clutch without slipping for preventing overheating by the slipping.