Framed heat exchanger for aircraft propulsion system
An assembly for an aircraft includes an airframe structure, a turbine engine and a heat exchanger. The turbine engine is mounted to the airframe structure. The heat exchanger is mounted to the airframe structure independent of the turbine engine. The heat exchanger extends axially along and circumferentially about the turbine engine.
1 . An assembly for an aircraft, comprising:
an airframe structure;
a turbine engine mounted to the airframe structure; and
a heat exchanger mounted to the airframe structure independent of the turbine engine, the heat exchanger extending axially along and circumferentially about the turbine engine;
wherein the turbine engine is fixedly mounted to the airframe structure; and
wherein the heat exchanger is movably mounted to the airframe structure.
2 . The assembly of claim 1 , wherein the airframe structure comprises a pylon;
the turbine engine is mounted to the pylon; and
the heat exchanger is mounted to the pylon independent of the turbine engine.
3 . The assembly of claim 1 , further comprising:
a mounting structure structurally tying the turbine engine to the airframe structure;
the mounting structure extending radially across and structurally decoupled from the heat exchanger.
4 . The assembly of claim 1 , wherein the heat exchanger is pivotally mounted to the airframe structure by a pivot connection.
5 . The assembly of claim 1 , further comprising:
a bypass flowpath arranged downstream of a fan section of the turbine engine, the bypass flowpath disposed radially outboard of a core of the turbine engine;
the heat exchanger disposed radially outboard of and axially overlapping the bypass flowpath.
6 . The assembly of claim 1 , wherein the heat exchanger includes
a frame mounted to the airframe structure; and
a plurality of heat exchanger cores arranged circumferentially about an axis, each of the plurality of heat exchanger cores attached to and supported by the frame.
7 . The assembly of claim 6 , wherein
the plurality of heat exchanger cores comprises a first heat exchanger core;
a first passage extends radially across the first heat exchanger core; and
a second passage extends laterally across the first heat exchanger core.
8 . The assembly of claim 7 , wherein the turbine engine is configured to direct air into the first passage and combustion products into the second passage.
9 . The assembly of claim 1 , wherein the heat exchanger comprises a condenser.
10 . An assembly for an aircraft, comprising:
an airframe structure;
a turbine engine mounted to the airframe structure; and
a heat exchanger mounted to the airframe structure independent of the turbine engine, the heat exchanger extending axially along and circumferentially about the turbine engine; and
a nacelle housing the turbine engine;
the heat exchanger disposed in a cavity radially between a case of the turbine engine and a wall of the nacelle.
11 . An assembly for an aircraft, comprising:
an airframe structure;
a turbine engine mounted to the airframe structure; and
a heat exchanger mounted to the airframe structure independent of the turbine engine, the heat exchanger extending axially along and circumferentially about the turbine engine,
wherein the heat exchanger includes
a frame mounted to the airframe structure; and
a plurality of heat exchanger cores arranged circumferentially about an axis, each of the plurality of heat exchanger cores attached to and supported by the frame,
wherein the frame includes a first support ring, a second support ring and a backbone;
wherein the first support ring and the second support ring each extend circumferentially around the turbine engine;
wherein the backbone extends axially between and is connected to the first support ring and the second ring; and
wherein the plurality of heat exchanger cores are arranged axially between and mounted to the first support ring and the second support ring.
12 . The assembly of claim 11 , wherein the first support ring and the second support ring are connected to the airframe structure through the backbone.
13 . The assembly of claim 11 , wherein
an aperture extends radially through the frame, the aperture extends axially within the frame between the first support ring and the second support ring, and the aperture extends circumferentially about an axis within the frame between opposing sides of the backbone; and
the plurality of heat exchanger cores are arranged in the aperture.
14 . The assembly of claim 11 , wherein
the plurality of heat exchanger cores comprises a first heat exchanger core;
the first heat exchanger core extends axially between a first end and a second end;
the first heat exchanger core is mechanically fastened to the first support ring at the first end; and
the first heat exchanger core is mechanically fastened to the second support ring at the second end.
15 . The assembly of claim 11 , wherein
the turbine engine comprises a turbofan engine with a fan case;
the first support ring is radially outboard of and axially overlaps the fan case; and
the second support ring is spaced axially from the fan case.
16 . An assembly for an aircraft, comprising:
a frame including a first support ring, a second support ring, a backbone and an aperture, the first support ring and the second support ring each extending circumferentially around an axis, the backbone extending axially between and connected to the first support ring and the second ring, the aperture extending radially through the frame, the aperture extending axially within the frame between the first support ring and the second support ring, and the aperture extending circumferentially about the axis within the frame between opposing sides of the backbone; and
a plurality of heat exchanger cores arranged circumferentially about the axis in an array, the array of the plurality of heat exchanger cores arranged in the aperture axially between the first support ring and the second support ring, and each of the plurality of heat exchanger cores mounted to the first support ring and the second support ring.
17 . The assembly of claim 16 , further comprising:
an airframe structure;
the backbone pivotally mounted to the airframe structure by a pivot connection.
18 . The assembly of claim 16 , further comprising:
a turbofan engine;
the frame and the array of the plurality of heat exchanger cores axially overlapping and extending circumferentially about the turbofan engine.