Method of diffusion bonding and laminated heat exchanger formed

Details Method of diffusion bonding and laminated heat exchanger formed Method of diffusion bonding and laminated heat exchanger formed

1990-06-19

1991-08-13

Rivell, John

Heat exchange

Flow passages for two confined fluids

Interdigitated plural first and plural second fluid passages

228174, 228183, 165164, F28F 308, B23K 3102

Patent

active

050388576

ABSTRACT:
Leakage of fluid from a heat exchanger and fluid mixing in the case of a two fluid compact high intensity cooling heat exchanger are prevented by diffusion bonded areas of the heat exchanger formed using small locally raised borders which extend about the fluid passage or passages of the heat exchanger to form raised contact portions that experience locally high stresses during diffusion bonding thereby insuring material flow and complete bonding. The thickness of the locally raised borders is the same as or slightly greater than the tolerance of the rolled sheet material used to form the laminates of the heat exchanger whereby local deviations in thickness of the thin laminates will not result in non-bonded areas.

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patent: 4566625 (1986-01-01), Moe
patent: 4665975 (1987-05-01), Johnston
patent: 4880055 (1989-11-01), Niggemann et al.
patent: 4934454 (1990-06-01), Van Dyke et al.

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