Tail pipe of gas turbine combustor and gas turbine combustor hav

Details Tail pipe of gas turbine combustor and gas turbine combustor hav Tail pipe of gas turbine combustor and gas turbine combustor hav

1997-04-30

1999-11-16

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

Combustion products generator

60752, F02C 314, F23R 342

Patent

active

059836415

ABSTRACT:
In a tail pipe of gas turbine combustor, the portion just in front of the outlet 104 of tail pipe of gas turbine combustor has a shape such as to be inclined with respect to the axial direction so that the direction changes from the rearward direction to the direction toward the rear in the substantially axial direction, and at this portion, the position of center of curvature 103 in the axial direction on the rotor side lies on the upstream side from the position of center of curvature 102 on the casing side, a bent portion of tail pipe serves as a suction duct, and the occurrence of a negative pressure zone is prevented. Also, by using the tail pipe, a combustor inner tube or a burner provided on the upstream side of the tail pipe having a straight or substantially straight axis is disposed so that the axis of the combustion inner tube or the burner makes an angle with respect to the axis of the tail pipe in such a manner that combustion gas collides with the back side of the tail pipe.

REFERENCES:
patent: 3657883 (1972-04-01), DeCorso
patent: 3759038 (1973-09-01), Scalzo et al.
patent: 4794753 (1989-01-01), Beebe
patent: 5265412 (1993-11-01), Bagepalli et al.
English translation of the Japanese Patent Office Official Action for Patent Appl. No. 003862/1996 mailed Sep. 3, 1998.

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