Patent ID: 9618271
Date: 2017-04-11
CPC Classifications: F01K,F01N,F28D,F28F,Y02T

Claim:
1. A device for an exchange of heat between a first and a second medium, the device comprising a plurality of pairs of trays stacked one on top of the other in a stacking direction; a first flow chamber through which a first medium is flowable is provided between two trays of at least one pair of trays; and a second flow chamber through which a second medium is flowable is provided between two pairs of trays adjacent to one another, wherein the first flow chamber has a first flow path with flow path sections that are configured to be flowed through consecutively in opposite directions for the first medium, and which are separated from one another by a division wall arranged between the two trays of the at least one pair of trays, and wherein the second flow chamber has a second flow path for the second medium, wherein at least one surface of a tray of the at least one pair of trays is an etched, milled or embossed surface, the etched, milled or embossed surface defining the first flow path and/or at least a portion of the flow path sections, wherein a medium outlet has a larger cross section than a medium inlet, wherein the first flow path is composed of two separate channels running parallel, each separate channel having flow path sections that are configured to be flowed through consecutively in opposite directions, the two channels being separated from one another by a web, wherein all of the flow path sections of each separate channel of the first flow path, except for curved portions of the flow path sections, extend perpendicular to a longitudinal direction of the device, wherein the web has at least one interruption, the at least one interruption comprised of an opening to permit an exchange of fluid between the two separate channels, wherein the medium inlet connects to a start of the flow path sections via inlet paths that run perpendicular to the two parallel separate channels and the medium outlet connects to an end of the flow path sections via outlet paths that run perpendicular to the two parallel separate channels, wherein the inlet paths and the outlet paths extend parallel to the longitudinal direction of the device, wherein, except for a position of the at least one interruption, the web extends continuously along the flow path sections and has a constant width from the medium inlet to the medium outlet, and wherein the medium inlet and the medium outlet are arranged laterally at the tray center of the plurality of pairs of trays, the medium inlet and the medium outlet forming a center fixed bearing that fixes the plurality of pairs of trays, such that the plurality of pairs of trays have a center fixed bearing and loose ends extending therefrom.