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. 18, 2021
Filed:
Apr. 25, 2019
Doosan Heavy Industries & Construction Co., Ltd., Changwon-si, KR;
Seok Beom Kim, Seoul, KR;
Other;
Abstract
A turbine blade includes a root to be mounted to a rotor; a platform having an inner side and an outer side, the inner side being coupled to the root; an airfoil extending from the outer side of the platform in a radial direction of the rotor and including an outer end on which a blade tip is formed; a protrusion formed in the blade tip; and a blade cooling passage that is formed inside the airfoil and communicates with an exit hole formed in the blade tip, the blade cooling passage to pass cooling fluid through the airfoil such that the cooling fluid exits the airfoil through the exit hole. The protrusion includes an outer side surface that is flush with an outer end surface of the airfoil and protrudes in a direction perpendicular to the radial direction to prevent hot combustion gas from invading the blade cooling passage.