초록

A combustor for a gas turbine engine having a porous outer metallic shell and a thin-walled, nonporous ceramic liner whose backside is impingement cooled, with only primary and secondary openings in the ceramic liner for delivering pressurized primary air and dilution air to the combustion zone.

대표청구항 ▼

A combustor for a gas turbine engine, comprising: a combustor housing having an inlet for recieving pressurized air for combustion therein; an outer metallic shell inside said housing and mounted thereto, said outer shell having primary and secondary air holes and a plurality of smaller cooling air

A combustor for a gas turbine engine, comprising: a combustor housing having an inlet for recieving pressurized air for combustion therein; an outer metallic shell inside said housing and mounted thereto, said outer shell having primary and secondary air holes and a plurality of smaller cooling air holes; and an inner, thin walled, ceramic liner mounted to and disposed within said outer shell, and cooperating therewith to define a cooling space between said outer shell and said ceramic liner, said ceramic liner having primary and secondary openings respectively communicating with said primary and secondary air holes, said ceramic liner being otherwise nonporous, said cooling air holes adapted to direct the pressurized air into said cooling space for impingement cooling of said ceramic liner.