Thermally isolated housing in gas turbine engine

A system for thermally isolating a gas turbine engine housing having an outer ring-shaped housing member and an inner hub attached by housing struts from high temperatures created by combustion gases flowing through the turbine engine, comprising:

• a floating liner assembly disposed between the inner hub and the outer ring-shaped housing member and including a plurality of liner struts enclosing the housing struts, with a plurality of openings extending through the floating liner;
• an outer baffle assembly surrounding the floating liner assembly, with a plurality of openings extending through portions of the outer baffle assembly;
• an inner baffle assembly disposed within the floating liner assembly, with a plurality of openings extending through portions the inner baffle;
• and
• wherein a continuous stream of pressurized air can enter the outer ring-shaped housing member and flow through the openings in the outer baffle assembly and be directed against the floating liner to collect heat from the floating liner and expel the heat to a stream of combustion gases flowing through the gas turbine engine.

An apparatus and system for thermally isolating an outer ring-shaped housing member of gas turbine engine having a number of inlets and an inner hub attached the outer ring-shaped housing member by a plurality of separate housing struts, from high temperatures created by combustion gases flowing through the turbine engine, comprising:

• a floating liner assembly disposed between the inner hub and the outer ring-shaped housing member and comprising separate, radially-disposed inner and outer ring-shaped members, with each ring-shaped member having a having a number of openings, forming a cooling air passageway adjacent each of the floating liner ring-shaped inner and outer members;
• an outer baffle assembly formed of two similar, generally cylindrically-shaped members attached to one another and surrounding the floating liner outer ring-shaped member, with a plurality of openings extending through each outer baffle member;
• an inner baffle assembly formed of two similar, generally cylindrically-shaped members arranged within the floating liner inner ring-shaped member, with a plurality of openings extending through each inner baffle member;
• and
• a single, continuous air circuit extending through the outer ring-shaped housing member and flowing through the openings in the outer and inner baffle assemblies and impacting on each of the floating liner inner and outer ring-shaped members for collecting heat from each of the floating liner inner and outer ring-shaped members and expelling the heat to a stream of combustion gases flowing through the gas turbine engine.