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. 28, 2010
Filed:
Oct. 17, 2006
Takao Yokoyama, Nagasaki-ken, JP;
Seiichi Ibaraki, Nagasaki-ken, JP;
Katsuyuki Osako, Kanagawa-ken, JP;
Motoki Ebisu, Kanagawa-ken, JP;
Takao Yokoyama, Nagasaki-ken, JP;
Seiichi Ibaraki, Nagasaki-ken, JP;
Katsuyuki Osako, Kanagawa-ken, JP;
Motoki Ebisu, Kanagawa-ken, JP;
Abstract
An exhaust turbo-supercharger having a high efficiency is provided. The exhaust turbo-supercharger includes therein an exhaust turbine housing including a spiral channel and a turbine-accommodating chamber connected to an innermost peripheral part of the spiral channel; an exhaust turbine provided in the turbine-accommodating chamber so that the axial line of the exhaust turbine is parallel to that of the spiral channel; a shaft that is concentrically connected to one side of the exhaust turbine in the axial line direction; a bearing housing disposed at the side of the exhaust turbine in the axial line direction so as to be adjacent to the exhaust turbine housing; a bearing that is provided in the bearing housing and that rotatably supports the shaft around the axial line; and a heat shield component interposed between the exhaust turbine housing and the bearing housing. The heat shield component constitutes a part disposed near the entrance of the turbine-accommodating chamber, the part being a part of the inner wall surface of the spiral channel. The part composed of the heat shield component, the part being a part of the inner wall surface of the spiral channel, forms a protruding part protruding toward the inside of the channel relative to an upstream part.