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:
Aug. 11, 2026
Filed:
Feb. 21, 2023
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
A turbine housing has a scroll passage wall surface connecting an outer peripheral end of a scroll passage and an outer peripheral end of a hub-side passage wall surface. In a cross-section along the axis of a turbine rotor passing through a tongue portion. the scroll passage wall surface includes: a first arc portion extending from an outer peripheral end connected to the outer peripheral end of the scroll passage inward in a radial direction of the turbine rotor; and a cliff portion connecting an inner peripheral end of the first arc portion and the outer peripheral end of the hub-side passage wall surface. The cliff portion includes a second arc portion connected to the inner peripheral end of the first arc portion and forming an inflection point between the first arc portion and the second arc portion. The inflection point is located offset frontward from the outer peripheral end of the hub-side passage wall surface in an axial direction of the turbine rotor and outward from the outer peripheral end of the hub-side passage wall surface in the radial direction.