Appeal No. 95-4237
Application 07/887,002
vapor in a transpiration cooled skin” (column 1, lines 6-11).
For this purpose, liquid coolant under pressure is provided
from a storage tank 10 through valves 40 to a plurality of
plenum chambers 50. The liquid coolant is maintained in
contact with the inner surface 48 of the porous skin of the
vehicle. The liquid coolant flows through the porous skin
toward the outer surface thereof, but vaporizes before it
reaches the outer surface. “The transpired vapor 30 exits
through the aerodynamic surface of the skin, is entrained into
the boundary layer flow and is swept downstream along the
outer surface of the skin providing a film cooling region 32
on adjacent solid wall sections 20 as shown in FIG. 1” (column
4, lines 17-22). Storage tank 10 is kept under pressure by a
pressure vessel 12. Control of liquid coolant flow to the
plenum chambers is accomplished by a pressure regulator 34
provided between the pressure vessel and the storage tank.
Eknes pertains to a device for reducing sonic boom
intensity. The device comprises nose portion 11 having a
porous outer skin 15 separated from a solid inner surface 14
by a plenum 16. Air entering the plenum via the holes 13 in
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