Combustor liner helical cooling apparatus

摘要

A combustor liner (34) is provided. The combustor liner (34) may include an upstream portion (51) and a downstream end portion (52). The upstream portion (51) may have a radius (R1) and a length (L1) along a generally longitudinal axis (58). The downstream end portion (52) may have a radius (R2) and a length (L2) along the generally longitudinal axis (58). The downstream end portion (52) may define a plurality of channels (56). Each of the plurality of channels (56) may extend helically through the length (98) of the downstream end portion (52). Each of the plurality of channels (56) may be configured to flow an air flow (84) therethrough, cooling the downstream end portion (52).