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. 21, 2000
Filed:
Aug. 05, 1998
Takanori Okabe, Kariya, JP;
Takashi Ban, Kariya, JP;
Shigeru Suzuki, Kariya, JP;
Tatsuya Hirose, Kariya, JP;
Abstract
A viscous fluid type heat generator including a housing assembly defining therein a heat generating chamber and a heat receiving chamber, a drive shaft rotatably supported by the housing assembly, a rotor element mounted to be rotationally driven by the drive shaft for rotation within the heat generating chamber, and a viscous fluid, held in a gap defined between the inner wall surfaces of the heat generating chamber and the outer surfaces of the rotor element, for heat generation under shearing stress applied by the rotation of the rotor element. At least a part of the housing assembly, which defines the heat generating chamber, is made of a material of which a linear expansion coefficient is larger than that of a material of the rotor element.