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. 11, 2012
Filed:
Mar. 17, 2008
Dwayne Robert Taylor, Livonia, MI (US);
Dwayne Robert Taylor, Livonia, MI (US);
DENSO International America, Inc., Southfield, MI (US);
Abstract
An apparatus to rotate a cooling fan may employ an engine coolant radiator having a radiator inlet tank attached at an end of the radiator. The radiator inlet tank may be filled with engine coolant and transfer heat into a fan system evaporator contained inside the radiator inlet tank. The tank may contain a liquid working fluid capable of absorbing heat from the engine coolant and becoming a gaseous working fluid. A gas expander with an impeller may be employed to receive the gaseous working fluid from the fan system evaporator and impart rotation in a shaft to which the impeller of the gas expander and cooling fan is attached. A fan system condenser may receive the gaseous working fluid from the gas expander and condense the gaseous working fluid to form a liquid working fluid. A pump pumps the liquid working fluid back to the fan system evaporator.