Sliding joint for an annular combustor

Details Sliding joint for an annular combustor Sliding joint for an annular combustor

1986-04-28

1987-08-18

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

Combined with regulation of power output feature

60740, 60752, F02C 720, F02C 100

Patent

active

046868232

ABSTRACT:
A sliding expansion joint (68) for the interface between an annular combustor head (24) and a downstream-extending liner (47) of a combustion chamber (18) includes an inward facing cylindrical surface (78) on the head (24) and a thickened upstream ring (74) in the liner (47). A cooled, radially extending bulkhead (36) isolates the joint (68) thermally from the high temperature combustion reaction (50). A region of reduced static air pressure is induced adjacent the joint (68) by the flow of air (86) over the convex combustor dome (30). Any air leakage through joint (68) adds to the existing flow of cooling air (106) adjacent the liner (47).

REFERENCES:
patent: 2432359 (1947-12-01), Streid
patent: 2479573 (1949-08-01), Howard
patent: 2581999 (1952-01-01), Blatz
patent: 2722801 (1955-11-01), Lombard
patent: 2748567 (1956-06-01), Dougherty
patent: 2884754 (1959-05-01), Sevcik
patent: 3371482 (1968-03-01), Camboulives et al.
patent: 3670497 (1972-06-01), Sheldon
patent: 3965066 (1976-07-01), Sterman et al.
patent: 4365470 (1982-12-01), Matthews et al.

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