Aircraft heat exchanger panel attachment

1. A heat exchanger for providing thermal energy transfer between a first flow along a first flowpath and a second flow along a second flowpath, the heat exchanger comprising:

at least one plate bank comprising a plurality of plates, each plate 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; and

a manifold having:

a first face to which the plurality of plates are mounted along their respective proximal edges;

an inlet plenum having at least one inlet port and at least one outlet port; and

an outlet plenum having at least one outlet port and at least one inlet port, the first flowpath passing from the at least one inlet port of the inlet plenum, through the at least one passageway of each of the plurality of plates, and through the at least one outlet port of the outlet plenum,

wherein:

for each plate, the manifold first face has a respective associated slot capturing a portion of the plate along the proximal edge thereof to prevent extraction of the plate normal to the manifold first face;

each plate has a mounting ear having an aperture; and

a respective threaded fastener extends through the aperture.

2. The heat exchanger of claim 1 wherein:

said captured portion of the plate is a dovetail having tapering shoulders and a base.

3. The heat exchanger of claim 1 wherein for each plate:

the proximal edge extends from a first end to a second end;

the apertured mounting ear is at the second end; and

at the first end, the plate lacks an apertured mounting ear.

4. The heat exchanger of claim 1 wherein:

each slot has a closed first end and an open second end; and

the fastener is proximate the second end.

5. The heat exchanger of claim 1 wherein:

the aperture is an open slot.

6. The heat exchanger of claim 1 wherein:

the fastener has a head flush or subflush to the manifold first face adjacent the slot.

7. The heat exchanger of claim 1 wherein:

each slot has a closed first end and an open second end.

8. The heat exchanger of claim 1 wherein:

each slot has a base;

each slot base has a first groove and a second groove;

a first seal in the first groove seals the associated plate inlet port to a respective said inlet plenum outlet port; and

a second seal in the second groove seals the associated plate outlet port to a respective said outlet plenum inlet port.

9. The heat exchanger of claim 1 wherein, for each plate of the plurality of plates, the at least one 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 fluidically in parallel between the inlet plenum and the outlet plenum.

10. The heat exchanger of claim 9 wherein:

the inlet plenum is adjacent the trailing edge; and

the outlet plenum is adjacent the leading edge.

11. The heat exchanger of claim 1 wherein:

in the at least one plate bank, the plates are parallel to each other.

12. The heat exchanger of claim 1 wherein each plate further comprises:

an external fin array.

13. The heat exchanger of claim 1 further comprising:

respective external fin arrays connecting adjacent said plates.

14. A gas turbine engine including the heat exchanger of claim 1 .

15. A heat exchanger for providing thermal energy transfer between a first flow along a first flowpath and a second flow along a second flowpath, the heat exchanger comprising:

at least one plate bank comprising a plurality of plates, each plate 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; and

a manifold having:

a first face to which the plurality of plates are mounted along their respective proximal edges;

an inlet plenum having at least one inlet port and at least one outlet port; and

an outlet plenum having at least one outlet port and at least one inlet port, the first flowpath passing from the at least one inlet port of the inlet plenum, through the at least one passageway of each of the plurality of plates, and through the at least one outlet port of the outlet plenum,

wherein:

for each plate, the manifold first face has a respective associated slot capturing a portion of the plate along the proximal edge thereof to prevent extraction of the plate normal to the manifold first face; and

said captured portion of the plate is a dovetail having tapering shoulders and a base.

16. The heat exchanger of claim 15 wherein:

along each said slot is a respective associated said inlet plenum outlet port and outlet plenum inlet port.

17. The heat exchanger of claim 15 wherein:

each slot has a closed first end and an open second end.

18. The heat exchanger of claim 15 wherein:

each slot has a base;

each slot base has a first groove and a second groove;

a first seal in the first groove seals the associated plate inlet port to a respective said inlet plenum outlet port; and

a second seal in the second groove seals the associated plate outlet port to a respective said outlet plenum inlet port.

19. The heat exchanger of claim 15 wherein, for each plate of the plurality of plates, the at least one 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 fluidically in parallel between the inlet plenum and the outlet plenum.

20. The heat exchanger of claim 19 wherein:

the inlet plenum is adjacent the trailing edge; and

the outlet plenum is adjacent the leading edge.

21. A gas turbine engine including the heat exchanger of claim 15 .

22. A method for assembling the heat exchanger of claim 15 the method comprising, for each said plate:

sliding the dovetail into the respective associated slot.

23. The method of claim 22 wherein, for each said plate:

the dovetail extends from a first end to a second end;

the apertured mounting ear is at the second end; and

during sliding the portion of the plate along the proximal edge thereof into the respective associated slot, respective surfaces of the plate and manifold interface in a wedge-like fashion to hold the plate firmly engaged to a base of the manifold slot.

24. A method for assembling the heat exchanger of claim 1 the method comprising, for each said plate:

sliding the portion of the plate along the proximal edge thereof into the respective associated slot; and

installing and tightening the respective associated fastener.

25. The method of claim 24 wherein, for each said plate:

the proximal edge extends from a first end to a second end;

the apertured mounting ear is at the second end; and

during sliding the portion of the plate along the proximal edge thereof into the respective associated slot, respective surfaces of the plate and manifold interface in a wedge-like fashion to hold the plate firmly engaged to a base of the manifold slot.