skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Turbine airfoil cooling system with cooling systems using high and low pressure cooling fluids

Patent ·
OSTI ID:1404936

A turbine airfoil cooling system including a low pressure cooling system and a high pressure cooling system for a turbine airfoil of a gas turbine engine is disclosed. In at least one embodiment, the low pressure cooling system may be an ambient air cooling system, and the high pressure cooling system may be a compressor bleed air cooling system. In at least one embodiment, the compressor bleed air cooling system in communication with a high pressure subsystem that may be a snubber cooling system positioned within a snubber. A delivery system including a movable air supply tube may be used to separate the low and high pressure cooling subsystems. The delivery system may enable high pressure cooling air to be passed to the snubber cooling system separate from low pressure cooling fluid supplied by the low pressure cooling system to other portions of the turbine airfoil cooling system.

Research Organization:
SIEMENS ENERGY, INC. Orlando, FL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC26-05NT42644
Assignee:
SIEMENS ENERGY, INC.
Patent Number(s):
9,797,259
Application Number:
14/200,168
OSTI ID:
1404936
Resource Relation:
Patent File Date: 2014 Mar 07
Country of Publication:
United States
Language:
English

References (25)

Gas Turbine Rotor Assembly patent April 1960
Airfoil with dual source cooling patent March 1996
Gas turbine moving blade steam cooling system patent October 1999
Dual cooled shroud patent November 1999
Combustion turbine cooling media supply system and related method patent May 2002
Method and apparatus for cooling high temperature components in a gas turbine patent December 2002
Dual coolant turbine blade patent November 2005
Part load blade tip clearance control patent November 2005
Modulated flow turbine nozzle patent March 2006
Blade and disk radial pre-swirlers patent March 2007
Turbine blade with vibration damper patent September 2007
Integrated turbine sealing air and active clearance control system and method patent November 2007
Methods and apparatus for cooling gas turbine rotor blades patent April 2009
Turbine last stage blade with forced vortex driven cooling air patent March 2010
Compound turbine cooled engine patent June 2010
Interstage cooled turbine engine patent January 2011
Compound nozzle cooled engine patent January 2011
Dual interstage cooled engine patent April 2011
Turbine blade with single tip rail with a mid-positioned deflector portion patent April 2012
Gas turbine blade with double impingement cooled single suction side tip rail patent May 2012
Turbine blade squealer tip rail with fence members patent November 2012
Snubber Assembly for Turbine Blades patent-application August 2011
Cooled Snubber Structure for Turbine Blades patent-application August 2011
Bicast Turbine Engine Components patent-application February 2014
Bucket Assembly for Use in a Turbine Engine patent-application April 2015