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:
May. 05, 1998
Filed:
May. 23, 1996
Applicant:
Inventors:
Michael Frederick Hammer, Carmel, IN (US);
Robert Franklin Combs, Mulberry, IN (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P / ;
U.S. Cl.
CPC ...
290 / ; 322 40 ; 475149 ; 123 4149 ;
Abstract
The cooling for large track laying type vehicles is provided by a fan which circulates air through the powertrain compartment and a radiator. The fan speed is varied to reduce the power requirement when maximum air flow is not needed. The speed of the fan is modulated relative to the engine speed by a separate drive mechanism. The electrical generator speed can also be modulated simultaneously with the fan drive. To provide a compact arrangement, the fan input shaft and generator input shaft are coaxially disposed such that the fan structure surrounds the outer periphery of the generator.