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:
Jul. 13, 2021
Filed:
Nov. 20, 2017
Mitsubishi Heavy Industries Engine & Turbocharger, Ltd., Sagamihara, JP;
Gaku Sasaki, Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD., Sagamihara, JP;
Abstract
A centrifugal compressor includes an impeller and a housing having a scroll passage of spiral shape formed on an outer peripheral side of the impeller. When a circumferential-directional position of the scroll passage is represented by an angular position with respect to a scroll end of the scroll passage, and in a cross-section obtained by cutting the scroll passage along a plane including a rotational axis of the impeller at a circumferential-directional position where the angular position is θ, F(θ) is defined as: F(θ)=(A/R)/r, where A is a cross-sectional area of the scroll passage, R is a distance from the rotational axis to a scroll center of the cross-section of the scroll passage, and r is a radius of the impeller, 0.35≤F(360°)≤0.65, and 0.08×F(360°)≤F(60°)≤0.4×F(360°).