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. 16, 2020
Filed:
Mar. 24, 2015
Mitsubishi Heavy Industries Engine & Turbocharger, Ltd., Kanagawa, JP;
Ryoji Okabe, Tokyo, JP;
Yasunori Watanabe, Tokyo, JP;
Isao Tomita, Tokyo, JP;
Takashi Arai, Tokyo, JP;
Hiroyuki Arimizu, Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD., Sagamihara-Shi, JP;
Abstract
This impeller cover is provided with: a machinable abradable seal section which has a shroud surface, which faces the outer peripheral surface of an impeller rotating about its axis, and which provides a seal between the outer peripheral surface and the shroud surface; a cover body which covers the impeller from the outside and which has a seal housing section for housing the abradable seal section therein; and a filling material which is interposed between the abradable seal section and the cover body. The seal housing section has a fitting inner peripheral surface which is extended along the axis in order for the outer peripheral surface of the abradable seal section to fit thereto, a reference surface which is used for axial positioning of the abradable seal section by being brought into contact with the abradable seal section from one side in an axial direction, and a capturing part which forms a gap in at least at a part of the section between the abradable seal section and the seal housing section in order to capture any excess filling material.