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. 23, 2017
Filed:
Nov. 12, 2013
Yoji Okita, Tokyo, JP;
Yoji Okita, Tokyo, JP;
IHI CORPORATION, , JP;
Abstract
The gas turbine engine (S) includes: turbine blades (); and a cooling air supply unit () to supply cooling air to the turbine blades (). A flow path surface () is formed so as to be positioned in an upstream side of the turbine blades () and so as to be connected to a base surface () in which the turbine blades () are provided. The flow path surface () includes: depression portions () depressed relative to the base surface (), each depression portion () including at least an area overlapping with a front end () of each turbine blade (), when viewed from a direction of the turbine axis (L); and protrusion portions () protruding relative to the base surface (), each protrusion portion () being at least part of each area positioned between front ends () of the turbine blades (), when viewed from the above direction.