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:
Feb. 18, 2025
Filed:
Dec. 13, 2021
Mitsubishi Heavy Industries Engine & Turbocharger, Ltd., Sagamihara, JP;
MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD., Sagamihara, JP;
Abstract
A variable geometry turbine includes a variable nozzle unit for adjusting a flow of exhaust gas in an exhaust gas passage for introducing exhaust gas to the turbine rotor. The variable nozzle unit includes a plurality of nozzle vanes disposed in the exhaust gas passage at intervals in the circumferential direction of the turbine rotor. When the exhaust gas passage is divided into a near-tongue region in the vicinity of a tongue portion of the scroll passage and a far-tongue region which is a region other than the near-tongue region, the plurality of nozzle vanes includes at least one near-tongue nozzle vane disposed in the near-tongue region and at least one far-tongue nozzle vane disposed in the far-tongue region. The at least one near-tongue nozzle vane has, in at least one of a leading edge or a trailing edge of the near-tongue nozzle vane, a notch that is cut out to a greater extent than a leading edge or a trailing edge of the far-tongue nozzle vane.