Patent ID: 7954542

Claim:
Heat exchanger, comprising a housing with a bottom, an upper wall and side walls, wherein onto two pairs of opposite side walls, the front wall and the back wall, respectively, are connected a supply and a discharge for a gas to be cooled and wherein means are provided in the housing for separating condensate from the cooled gas, comprising a series of corrugated vertical walls upon which are provided crosswise extending ribs forming vertical gutters extending only from the bottom up to the upper wall of the housing, and further wherein holes are provided in the bottom for the discharge of the separated condensate from the gutters via a collector, said collector extending from at least under the holes to under an opening which is provided in the bottom between the means for separating condensate and the back wall; and including a standing rib on the side edge of the opening, said standing rib having a cross edge on a free end thereof which extends over practically the entire opening and said cross edge, near the side walls of the housing, being shorter than near the center of the housing.