Heat exchange assembly

Claim 1

A HEAT EXCHANGE ASSEMBLY COMPRISING, IN COMBINATION, A HEAT TRANSFER MEMBER CONSISTING OF A HOUSING HAVING CONTIGUOUS INDEPENDENT FLUID PASSAGES FOR A FLOW OF DIFFERENT TEMPERATURE FLUIDS UNDER PRESSURE THERETHROUGH BETWEEN AN INLET AND AN OUTLET FOR THE TRANSFER OF HEAT BETWEEN SAID FLUIDS THROUGH THE WALLS OF SAID PASSAGES, SAID HEAT TRANSFER PROVIDING A TEMPERATURE VARIENT BETWEEN THE ENTRANCE AND EXIT PASSAGE PORTIONS OF SAID HOUSING, AND HEAT ABSORBING MEANS FORMED FROM A MATERIAL OF ESSENTIALLY HIGH THERMAL ABSORPTION CHARACTERISTICS IN THE PATH OF FLOW OF THE HIGHER TEMPERATURE FLUID AND UPSTREAM OF THE INLET TO ITS HOUSING PASSAGE FOR MINIMIZING THE INITIAL TEMPERATURE GRADIENT ACROSS SAID HEAT EXCHANGER UNIT PASSAGES IN RESPONSE TO INITIAL FLOW OF A HIGH TEMPERATURE FLUID THROUGH SAID UNIT AT A TIME WHEN SAID UNIT IS AT AMBIENT TEMPERATURE CONDITIONS, CONTINUED FLOW OF SAID HIGH TEMPERATURE FLUID RENDERING SAID HEAT ABSORPTION MEANS INOPERATIVE.