Title:
COOLING ARRANGEMENTS IN TURBINE BLADES
Document Type and Number:
WIPO Patent Application WO/2017/020178
Kind Code:
A1
Abstract:
A rotor blade for a turbine (12) of a gas turbine (10) includes an airfoil (25). The airfoil (25) may have a leading edge (28), a trailing edge (29), an outboard (31), and an inboard end that attaches to a root (21) configured to couple the rotor blade to a rotor disc. The airfoil (25) may have a cooling configuration that includes elongated cooling channels (33) for receiving and directing a coolant through the airfoil (25). The rotor blade may further include: a tip shroud (55) connected to the airfoil (25); outlet ports (37) formed through an outboard face (60) of the tip shroud (55) that fluidly communicate with the cooling channels; and flow directing structure formed on the outboard surface (60) of the tip shroud (55). The flow directing structure may be positioned relative to the outlet ports (37) and configured for directing the flow of coolant discharged from the outlet ports (37). The rotor blade may be useful to reduce local tip shroud temperature as well as improved stage aerodynamic efficiency by reducing the coolant supply needed to maintain the component at desired temperature levels.
Inventors:
TAYLOR ZACHARY JAMES (US)
ZHOU YING (CN)
SURTI ANKIT RAJESH (IN)
MISTRY HITESHKUMAR RAMESHCHANDRA (IN)
ZHOU YING (CN)
SURTI ANKIT RAJESH (IN)
MISTRY HITESHKUMAR RAMESHCHANDRA (IN)
Application Number:
PCT/CN2015/085745
Publication Date:
February 09, 2017
Filing Date:
July 31, 2015
Export Citation:
Assignee:
GEN ELECTRIC (US)
TAYLOR ZACHARY JAMES (US)
ZHOU YING (CN)
SURTI ANKIT RAJESH (IN)
MISTRY HITESHKUMAR RAMESHCHANDRA (IN)
TAYLOR ZACHARY JAMES (US)
ZHOU YING (CN)
SURTI ANKIT RAJESH (IN)
MISTRY HITESHKUMAR RAMESHCHANDRA (IN)
International Classes:
F01D5/22; F01D5/18
Foreign References:
| US20090304520A1 | 2009-12-10 | |||
| CN103133040A | 2013-06-05 | |||
| CN103119247A | 2013-05-22 | |||
| CN103422909A | 2013-12-04 | |||
| EP2851511A2 | 2015-03-25 | |||
| CN103061824A | 2013-04-24 | |||
| CN104685160A | 2015-06-03 | |||
| CN104791018A | 2015-07-22 | |||
| US5531568A | 1996-07-02 | |||
| EP2607629A1 | 2013-06-26 | |||
| EP2149675A2 | 2010-02-03 | |||
| US6761534B1 | 2004-07-13 |
Other References:
See also references of EP 3329099A4
Attorney, Agent or Firm:
CHINA PATENT AGENT (H.K.) LTD. (CN)
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