COMBUSTION APPARATUS

• US 3,657,882 A
• Filed: 11/13/1970
• Issued: 04/25/1972
• Est. Priority Date: 11/13/1970
• Status: Expired due to Term

• Current Assignee: Birger O. Hugoson
• Original Assignee: Birger O. Hugoson
• Inventors: Hugoson, Birger O.
• Primary Examiner(s): Hart, Douglas
• Application Number:
  US05/089,396
• Time in Patent Office: 529 Days
• Field of Search: 60/39.31,39.37,39.69
• US Class Current: 60/798
• CPC Class Codes: F01D 9/023 Transition ducts between combustor cans and first stage of the turbine in gas-turbine engines; their cooling or sealings

Abstract

In a gas turbine, the transition pieces of the combustor baskets are retained in assembled relation, and the joint between adjacent transition pieces sealed by means of seal frames, attached to the transition pieces, and seal members which slidably engage adjacent seal frames. The structure reduces the tendency of the side walls of the transition pieces to buckle and simplifies the assembling of the transition pieces.

Claims

1. In combustion apparatus for a gas turbine power plant, in combination, an annular array of combustor baskets having transition pieces disposed in closely spaced relation, flanged seal frames secured to adjacent sides of the transition pieces at their outlet ends, and a seal member having inturned flanges slidably engaging the flanges on adjacent seal frames to retain the transition pieces in assembled relation.

2. The combination defined in claim 1, wherein each seal frame comprises two angle members and gusset plates secured to the transition pieces.

3. The combination defined in claim 2, wherein one end of each of the angle members is secured directly to a transition piece and the other end is spaced from the transition piece by a triangular shaped gusset plate.

4. The combination defined in claim 3, including a gusset plate disposed at the ends of the angle members spaced from the transition piece and having a concave edge secured to the transition piece.

5. The combination defined in claim 2, wherein each seal member is generally like an I-beam in shape with a web portion and inturned flanges slidably engaging the angle members of two adjacent seal frames.

6. The combination defined in claim 5, wherein the web portion of each seal member is disposed between adjacent sides of two transition pieces.

7. The combination defined in claim 6, wherein adjacent sides of the transition pieces have openings therein within the seal frames to communicate with each other, and the web portions of the seal members close off said openings.

8. The combination defined in claim 4, including seal strips on the seal members engaging the gusset plates having concave edges.

9. The combination defined in claim 5, wherein the web portion of each seal member comprises two plates secured together in spaced relation.

10. The combination defined in claim 9, wherein the plates of the web portion are spaced apart by oppositely disposed indentations in the plates and are welded together at said indentations.