초록 ▼

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 exchan

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.

대표청구항 ▼

A laminated heat exchanger comprising a first metal laminate with at least one fluid passage which extends through the laminate and a second metal laminate diffusion bonded to a surface of the first metal laminate by way of a small locally raised border extending about the at least one fluid passage

A laminated heat exchanger comprising a first metal laminate with at least one fluid passage which extends through the laminate and a second metal laminate diffusion bonded to a surface of the first metal laminate by way of a small locally raised border extending about the at least one fluid passage, said small locally raised border having a height sufficient to compensate for thickness variations in the first and second metal laminates, the width of the small locally raised border being relatively narrow such that localized high stresses occurred on the border during diffusion bonding which resulted in material flow in the border to accommodate variations in the thickness of the metal laminates, whereby said diffusion bond extending about the at least one fluid passage is a continuous bond which prevents fluid leakage.