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:
May. 14, 2024
Filed:
May. 21, 2020
Mitsubishi Heavy Industries Engine & Turbocharger, Ltd., Sagamihara, JP;
Kenichiro Iwakiri, Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD., Sagamihara, JP;
Abstract
A scroll casing for a centrifugal compressor satisfies a relationship of Tb/Ta≥1.0 in a range of an angular position around a scroll center of the scroll passage from 180 degrees to 360 degrees, where Ta is a passage width of the diffuser passage along an axial direction of the centrifugal compressor, Tb is a shortest distance from a start position which is a connection position with a hub-side passage surface of the diffuser passage on an inner peripheral surface of a scroll portion forming the scroll passage to a virtual arc that touches an end position which is a position opposite to the start position on the inner peripheral surface, and the angular position is defined so that the angle gradually increases from a merging position between a scroll start and a scroll end of the scroll passage of 60 degrees to the downstream side of the scroll passage.