Fluid-circulation heat exchanger, in particular for an electron tube

摘要

PCT No. PCT/FR95/00130 Sec. 371 Date Aug. 15, 1996 Sec. 102(e) Date Aug. 15, 1996 PCT Filed Feb. 2, 1995 PCT Pub. No. WO95/22038 PCT Pub. Date Aug. 17, 1995A fluid-circulation heat exchanger including a porous body, made of thermally conductive material, in contact with at least one portion of a part to be cooled. The fluid flows through this porous body. The porous body has pores which generate directional changes of the fluid. These pores are large enough for the head loss of the fluid to be as small as possible on passage through the porous body. Application, in particular, to electron tubes.