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:
Jan. 07, 2014
Filed:
Jan. 28, 2008
Masatoshi Eguchi, Tokyo, JP;
Kazuhiro Onitsuka, Tokyo, JP;
Masahiro Shimizu, Tokyo, JP;
IHI Corporation, Tokyo, JP;
Abstract
The invention provides a supercharger which is provided with a thrust bearing in an outer side of a radial bearing, and can smoothly discharge a fed lubricating oil from a bearing portion so as to reduce a resistance generated by the lubricating oil. The supercharger is provided with a thrust bearing () rotatably supporting a thrust force applied to a turbine shaft (). The thrust bearing () is constituted by a disc-shaped thrust collar () rotating together with the turbine shaft, and a turbine side thrust bearing () and a compressor side thrust bearing () inhibiting a movement in an axial direction of the thrust collar. The compressor side thrust bearing () has an oil feed flow path () feeding a lubricating oil to a surface coming into contact with a thrust collar from an inner side of a housing, an annular concave groove () provided in an inner surface of a hollow through hole through which the turbine shaft passes, and an oil discharge flow path () dropping down the lubricating oil reserved within the concave groove downward.