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. 27, 2025
Filed:
Jun. 10, 2021
Mitsubishi Heavy Industries Engine & Turbocharger, Ltd., Sagamihara, JP;
Tadashi Kanzaka, Tokyo, JP;
Kenichiro Iwakiri, Tokyo, JP;
Yutaka Fujita, Tokyo, JP;
Hironori Honda, Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD., Sagamihara, JP;
Abstract
An impeller () of a centrifugal compressor () is provided with a hub () and a plurality of blades () provided at intervals in a circumferential direction of the impeller () on an outer peripheral surface of the hub (). In a meridian plane shape of the blades (), as the coordinate axes with the origin at a tip end () of a trailing edge () of the blades (), an X-axis connecting the tip end () and a base end () of the trailing edge () and a Y-axis orthogonal to the X-axis are defined. When a direction from the tip end () toward the base end () along the X-axis is defined as a positive direction of the X-axis and a direction toward the outside in a radial direction of the impeller () along the Y-axis is defined as a positive direction of the Y-axis, the trailing edge () in the meridian plane shape of the blades () includes a first decrease section () extending so that the Y-coordinate decreases as the X-coordinate increases, and a first increase section () positioned between the first decrease section () and the base end () and extending so that the Y-coordinate increases as the X-coordinate increases.