초록 ▼

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 exte

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).

대표청구항 ▼

A sliding joint arrangement for annular combustion chamber, comprising: an annular combustor head disposed in an annular stream of flowing air, the combustor having a convex upstream surface for diverting at least a portion of the flowing airstream radially inward, the head further defining a radial

A sliding joint arrangement for annular combustion chamber, comprising: an annular combustor head disposed in an annular stream of flowing air, the combustor having a convex upstream surface for diverting at least a portion of the flowing airstream radially inward, the head further defining a radially inward-facing cylindrical surface, located immediately downstream from the convex surface; an inner chamber liner, annularly downstream of the combustor head for separating the radially inward diverted portion of the flowing air stream from a high temperature combustion reaction occurring downstream of the combustor head, the inner liner further including an annular resilient sealing ring disposed about the upstream end of the inner liner, the sealing ring defining a radially outward facing sealing surface abutting the radially inward facing cylindrical surface for defining a sliding leak resistant sealing engagement therebetween; and an annular, radially extending bulkhead integral with the combustor head for forming a thermal shield between the engaged surface and ring and the downstream high temperature combustion reaction.