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. 23, 2020
Filed:
Feb. 25, 2014
Mitsubishi Heavy Industries Engine & Turbocharger, Ltd., Sagamihara-shi, Kanagawa, JP;
Takaya Futae, Tokyo, JP;
Hiroshi Suzuki, Tokyo, JP;
Noriyuki Hayashi, Tokyo, JP;
Takuya Miyazawa, Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD., Sagamihara-Shi, JP;
Abstract
An object is to provide a seal structure capable of reducing abrasion of a seal ring without increasing the number of components and of minimizing generation of abrasion powder. A seal structure to seal clearance between an outer peripheral surfaceof a rotary shaftand an inner peripheral surfaceof a bearing housingincludes: a first seal grooveA formed on the outer peripheral surfaceof the rotary shaft; a second seal grooveB disposed between the first seal groove and the impeller; a first seal ringto be mounted to the first seal groove; and a second seal ringto be mounted to the second seal groove. The first seal ringincludes a first-seal body portionA mounted to the first seal groove, and a first-seal protruding portionB protruding from the first-seal body portion toward the second seal ring, and being configured to be in contact with the second seal ring contacting a bearing-side wall surfaceBa of the second seal groove, in a state in which the first-seal body portion is in contact with a bearing-side wall surfaceAa of the first seal groove.