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. 04, 2003
Filed:
Nov. 19, 2001
Hitachi, Ltd., Tokyo, JP;
Abstract
A turbine rotor comprises first and second wheels each having turbine blades fixed to a peripheral portion thereof, and a spacer arranged so as to be sandwiched between the first and second wheels, and is characterized in that in a partitioning member is provided between the spacer and at least one of the first and second wheels, coolant paths in which coolant for cooling the turbine blades flows are provided inside the turbine blades, and a cavity formed by the partitioning member and the spacer is provided in a recovery course through which the coolant passed through the coolant paths is exhausted from the turbine blades. A gas turbine comprising the turbine rotor as mentioned above and a cooling method of the turbine rotor are disclosed.