Cooled turbine stator vane

Details Cooled turbine stator vane Cooled turbine stator vane

2011-04-12

2011-04-12

Cuff, Michael (Department: 3741)

Power plants

Combustion products used as motive fluid

Combustion products generator

C415S115000, C416S09700R

Reexamination Certificate

active

07921654

ABSTRACT:
A first stage turbine stator vane used in an industrial gas turbine engine, the vane having an outer endwall and an inner endwall with the airfoil extending between the two endwalls. A showerhead arrangement of film cooling holes is located along the leading edge region, and a row of exit cooling air slots is located along the trailing edge of the airfoil. A slanted rib extends from the outer endwall to the inner endwall and separates the vane into a forward cavity and an aft cavity. A leading edge impingement tube is secured within the forward cavity to provide impingement cooling to the leading edge walls of the airfoil. The leading edge impingement tube includes a cooling air inlet section extending out from the inner endwall so that a vena contractor forms in the tube entrance before the impingement holes begin. The leading edge impingement tube narrows in the cooling air flow direction. The trailing edge impingement tube has similar construction but has the cooling air inlet extending out from the outer endwall. With this design, the first stage vane can use both impingement cooling of the leading edge region and showerhead film cooling of the leading edge airfoil surface to allow for a higher gas flow temperature across the vane.

REFERENCES:
patent: 3628880 (1971-12-01), Smuland et al.
patent: 4153386 (1979-05-01), Leogrande et al.
patent: 4252501 (1981-02-01), Peill
patent: 4297077 (1981-10-01), Durgin et al.
patent: 4616976 (1986-10-01), Lings et al.
patent: 5392515 (1995-02-01), Auxier et al.
patent: 5405242 (1995-04-01), Auxier et al.
patent: 5511937 (1996-04-01), Papageorgiou
patent: 5591002 (1997-01-01), Cunha et al.
patent: 5609466 (1997-03-01), North et al.
patent: 5762471 (1998-06-01), Cunha
patent: 5829245 (1998-11-01), McQuiggan et al.
patent: 6019572 (2000-02-01), Cunha
patent: 6089822 (2000-07-01), Fukuno
patent: 6200087 (2001-03-01), Tung et al.
patent: 6270317 (2001-08-01), Manning et al.
patent: 6345955 (2002-02-01), Heffron et al.
patent: 6761529 (2004-07-01), Soechting et al.
patent: 7004720 (2006-02-01), Synnott et al.
patent: 7008185 (2006-03-01), Peterman et al.
patent: 7090461 (2006-08-01), Liang
patent: 7097418 (2006-08-01), Trindade et al.
patent: 7179047 (2007-02-01), Cooper
patent: 7204675 (2007-04-01), Texier
patent: 2002/0090294 (2002-07-01), Keith et al.
patent: 2004/0265129 (2004-12-01), Pabion et al.

Affiliated with

Also associated with

Rating

Cooled turbine stator vane does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cooled turbine stator vane, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cooled turbine stator vane will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2654760