Aircraft heat exchangers and plates
A heat exchanger plate for provides heat transfer between a first flow along a first flowpath and a second flow along a second flowpath. The heat exchanger plate comprised a body having: a first face and a second face opposite the first face; a leading edge along the second flowpath and a trailing edge along the second flowpath; a proximal edge having at least one inlet port along the first flowpath and at least one outlet port along the first flowpath; and at least one passageway along the first flowpath. Along a proximal portion, the first face and the second face converge at a first angle. Along a distal portion, the first face and the second face converge at a second angle less than the first angle.
1 . A heat exchanger plate for providing heat transfer between a first flow along a first flowpath and a second flow along a second flowpath, the heat exchanger plate comprising a body having:
a leading edge along the second flowpath and a trailing edge along the second flowpath;
a first face along the second flowpath and a second face opposite the first face along the second flowpath, the leading edge and the trailing edge joining the first face and second face;
a proximal edge having at least one inlet port along the first flowpath and at least one outlet port along the first flowpath; and
at least one passageway along the first flowpath,
wherein:
the body comprises a cast substrate;
along at least one of the first face and the second face the plate has sheetmetal fins secured to the body;
along at least 8.0% of a height between the proximal edge and the distal edge, the first face and the second face converge at a first angle of at least 0.25°.
2 . The heat exchanger plate of claim 1 wherein:
said at least 8.0% of a height between the proximal edge and the distal edge is a continuous zone and the first angle is uniform along said continuous zone.
3 . The heat exchanger plate of claim 1 wherein:
the plate has a plurality of interior walls separating legs of the at least one passageway at a progressively increasing spacing from proximal to distal.
4 . The heat exchanger plate of claim 1 wherein:
along at least 50% of a height between the proximal edge and the distal edge, the first face and the second face converge at a first angle of between 0.25° and 5.0°.
5 . The heat exchanger plate of claim 1 wherein the passageway comprises:
an inlet plenum extending from the at least one inlet port of the plate;
an outlet plenum extending to the at least one outlet port of the plate; and
a plurality of legs in parallel between the inlet plenum and the outlet plenum.
6 . The heat exchanger plate of claim 5 wherein:
the inlet plenum is adjacent the trailing edge; and
the outlet plenum is adjacent the leading edge.
7 . A heat exchanger plate for providing heat transfer between a first flow along a first flowpath and a second flow along a second flowpath, the heat exchanger plate comprising a body having:
a first face and a second face opposite the first face;
a leading edge along the second flowpath and a trailing edge along the second flowpath;
a proximal edge having at least one inlet port along the first flowpath and at least one outlet port along the first flowpath; and
at least one passageway along the first flowpath,
wherein:
along a proximal portion, the first face and the second face converge at a first angle;
along a distal portion, the first face and the second face converge at a second angle less than the first angle;
along the proximal portion, the body has integral fins; and
along the distal portion, the plate has sheetmetal fins secured to the body.
8 . The heat exchanger plate of claim 7 wherein:
the first angle is at least 0.25° greater than the second angle.
9 . The heat exchanger plate of claim 7 wherein:
the second angle is 0.0°.
10 . The heat exchanger plate of claim 7 wherein:
the proximal portion extends for a height of at least 8% of a height from the proximal edge.
11 . The heat exchanger plate of claim 7 wherein:
along the proximal portion, the plate has a plurality of walls at a progressively increasing spacing from proximal to distal.
12 . The heat exchanger plate of claim 11 wherein:
along the distal portion, the plate has a plurality of walls at a constant spacing.
13 . The heat exchanger plate of claim 7 wherein the body comprises a cast substrate.
14 . The heat exchanger plate of claim 7 wherein:
along the distal portion, the plate has sheetmetal fins secured to the body.
15 . The heat exchanger plate of claim 7 wherein:
the at least one inlet port along the first flowpath is a single inlet port;
the at least one outlet port along the first flowpath is a single outlet port; and
the single inlet port and single outlet port are on respective plugs.
16 . The heat exchanger plate of claim 7 wherein:
the at least one inlet port along the first flowpath is a single inlet port;
the at least one outlet port along the first flowpath is a single outlet port; and
the single inlet port and single outlet port are on respective plugs protruding from a flat main portion of the proximal edge.
17 . The heat exchanger plate of claim 1 wherein:
the at least one inlet port along the first flowpath is a single inlet port;
the at least one outlet port along the first flowpath is a single outlet port; and
the single inlet port and single outlet port are on respective plugs.
18 . The heat exchanger plate of claim 1 wherein:
the at least one inlet port along the first flowpath is a single inlet port;
the at least one outlet port along the first flowpath is a single outlet port; and
the single inlet port and single outlet port are on respective plugs protruding from a flat main portion of the proximal edge.
19 . A heat exchanger plate for providing heat transfer between a first flow along a first flowpath and a second flow along a second flowpath, the heat exchanger plate comprising a body having:
a first face and a second face opposite the first face;
a leading edge along the second flowpath and a trailing edge along the second flowpath;
a proximal edge having at least one inlet port along the first flowpath and at least one outlet port along the first flowpath; and
at least one passageway along the first flowpath,
wherein:
along a proximal portion, the first face and the second face converge at a first angle;
along a distal portion, the first face and the second face converge at a second angle less than the first angle;
along the proximal portion, the plate has a plurality of walls at a progressively increasing spacing from proximal to distal; and
along the distal portion, the plate has a plurality of walls at a constant spacing.
20 . The heat exchanger plate of claim 19 wherein:
the body comprises a cast substrate;
along the distal portion, the plate has sheetmetal fins secured to the body,
the at least one inlet port along the first flowpath is a single inlet port;
the at least one outlet port along the first flowpath is a single outlet port; and
the single inlet port and single outlet port are on respective plugs protruding from a flat main portion of the proximal edge.