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:
Sep. 09, 2014
Filed:
Mar. 25, 2009
Terumitsu Takahata, Osaka, JP;
Terumitsu Takahata, Osaka, JP;
Yanmar Co., Ltd., Osaka-shi, Osaka, JP;
Abstract
In order to reduce radiation heat from the turbine housing of a supercharger, the turbine housing is conventionally water-cooled or covered with a heat shielding material, but it is required to control heat loss due to excessive water cooling or high temperature on the outer surface of the heat shielding material. On the contrary, a solution by a cooling structure consisting of an inner thermal insulation portion of an air layer and an outer low temperature portion covering the inner thermal insulation portion has an inevitable problem of increasing number of components and upsizing. In a cooling structure of a supercharger () equipped with a turbine wheel () which rotates with exhaust gas from an engine () and provided, on the periphery of a turbine housing () for housing the turbine wheel (), with a cooling structure () consisting of an inner thermal insulation portion of an air layer () and an outer low temperature portion covering the inner thermal insulation portion, the outer low temperature portion is constituted by integrally forming a circulation passage () of fresh water in a turbine cover () which covers and protects the turbine housing ().