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:
Jun. 25, 2002
Filed:
Sep. 11, 2000
George Moser, Mason, MI (US);
Gordon Sommer, Plymouth, MI (US);
Engineered Dynamics Corporation, Plymouth, MI (US);
Abstract
A fluid coupling assembly is provided and includes a stationary housing , which h forms a first chamber ; an inner housing or output member which is rotatably disposed within chamber and which forms a second chamber ; and a rotor or drive member , which is rotatably disposed within chamber . An amount of fluid is contained within chambers and and is used to transmit torque between the rotor and the inner housing . Assembly further includes a pump assembly which is effective to circulate the fluid through assembly . An electrical valve is coupled to housing and is effective to selectively control the flow of fluid into chambers and . A water jacket within housing is used to cool the fluid flowing through assembly . Assembly selectively transmits torque from rotor to housing , thereby driving the rotation of a fan assembly . Valve is selectively actuated according to a predetermined algorithm or program which controls the flow of fluid into rotor and cavity , thereby controlling the torque and rotational speed transmitted to housing from rotor