Abstract:
A cooling structure for a gas turbine engine comprises a gas turbine engine structure defining a cooling cavity. A cooling component is configured to direct cooling flow in a desired direction into the cooling cavity. A bracket supports the cooling component and has an attachment interface to fix the bracket to the gas turbine engine structure. A first orientation feature 96, 102 associated with the bracket. A second orientation feature 104, 106 is associated with the gas turbine engine structure. The first and second orientation features cooperate with each other to ensure that the cooling component is only installed in one orientation relative to the gas turbine engine structure. A gas turbine engine and a method of installing a cooling structure are also disclosed.
Abstract:
A gas turbine engine component has an engine case structure surrounding an engine center axis (A). A plurality of holes (70) are formed in the engine case structure, wherein the holes (70) are circumferentially spaced apart from each other about the engine center axis (A). The plurality of holes (70) includes at least one balance hole (70b) and at least one service hole (70a) that is configured to allow another engine component to pass through the at least one service hole (70a). At least one cover (78) is configured to cover at least one balance hole (70b) such that air is prevented from passing through the at least one balance hole (70b). A corresponding gas turbine engine is also provided.
Abstract:
A fastener assembly includes a first component (64) that includes a fastener opening (152). A second component (90A) includes a bushing opening (150). A threaded bushing (154) is at least partially located within the bushing opening (150). A fastener (112) extends through the fastener opening (152) and engages the bushing (154). A cooling method allows to transfer heat from the fastener through the bushing to prevent the fastener from creeping.
Abstract:
A mid-turbine frame (57) for a gas turbine engine (20) includes an outer frame case (62) and an inner frame case (64). At least one spoke (65) connects the outer frame case (62) to the inner frame case (64). The spoke (65) includes an inlet passage (118) with at least one branch (120, 124) that extends in an axial direction.
Abstract:
A mid-turbine frame (57) is provided. The mid-turbine frame (57) may comprise an inner case (110) having an annular surface (112) with an interface section (120) disposed on the annular surface (112). The interface section (120) may include an interface feature (118). A balancing section (116) may be disposed on the annular surface (112) defining an opening (114) and disposed circumferentially adjacent the interface section (120).
Abstract:
A mid-turbine frame (57) for a gas turbine engine according to an example of the present disclosure includes, among other things, a first frame case (62, 64), a flange (78) coupled to the first frame case (62, 64), and a heat shield (60) adjacent to the flange (78) and between adjacent spokes (66). A method of cooling a portion of a gas turbine engine (20) is also disclosed.
Abstract:
A mid-turbine frame (57) for a gas turbine engine (20) includes an inner frame case (64) that includes a fluid passage. A swirler tube (142;...542) is in fluid communication with the fluid passage and is configured to direct cooling airflow in a radial inward and downstream direction.