SPACER ELEMENT WITH SURFACE TEXTURING, AND ASSOCIATED HEAT EXCHANGER AND PRODUCTION METHOD
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United States of America Patent
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Issued Date -
Mar 25, 2021
app pub date -
Dec 17, 2018
filing date -
Dec 19, 2017
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Abstract
Certain embodiments of the invention relate to a spacer element for a heat exchanger of the brazed plate and fin type, intended to be fitted between a first plate and a second plate of the exchanger, said spacer element comprising at least a first assembly portion configured to be assembled with the first plate and comprising a first pair of opposite surfaces, one of the surfaces of the first pair being oriented toward the first plate and the other of the surfaces of the first pair being oriented toward the second plate when the spacer element is in the fitted state, several fins or corrugation legs extending from said first assembly portion so as to delimit, when the spacer element is in the fitted state, a plurality of channels for the flow of a first fluid, and at least one surface texturing in the form of a porous structure or of reliefs formed on the surface of the spacer element, at least one fin or corrugation leg exhibiting said surface texturing. According to the invention, the first assembly portion is free of surface texturing on the surface of the first pair which, in the fitted state, is oriented toward the first plate.
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