Kelvion Machine Cooling Systems Gmbh

Gea Maschinenkühltechnik Gmbh

Martin Lohbreyer

Dietmar Krauss

Frank Kornetzky

Matthias Klein-Lassek

Andreas Schlieper

Sentuerk Oruc

Dietmar Abendroth

A heat exchanger for cooling a gas includes a gas inlet, a gas outlet, and a plurality of cooling tubes arranged between the gas inlet and the gas outlet, wherein the cooling tubes of two successive tube rows are arranged offset transversely to a flow direction of the gas. A fin having openings is provided for receiving a corresponding number of the cooling tubes. The fin has slits arranged at a distance from the openings and configured to follow an edge profile of a honeycomb-shaped hexagon, with the slits of each hexagon surrounding a corresponding one of the openings at the distance. Arranged between adjacent ones of the openings is a corresponding one of the slits at a same distance from each of the adjacent openings, with each slit having an end ending at a deformation point of the fin.

Heat exchanger

The invention relates to an exhaust gas recirculation cooling element () comprising a heat exchanger () having several heat exchange units () that are introduced between the inflow region () and the outflow region () of the exhaust gas (AG). Said units comprise cooling tubes with cooling ribs. The heat exchanger () is surrounded by a housing (), the lateral walls thereof () being arranged at a distance in relation to the perforated lateral walls (). Guide channels () are arranged between the closed lateral walls () of the heat exchanger () and the adjacent lateral walls () of the housing (), said guide channels extending in a diagonal manner and being provided to direct the coolant (KM) from a coolant inlet to the coolant outflow through the individual heat exchange units ().

Exhaust gas recirculation cooling element for an internal combustion engine

Growing community of inventors

Dorsten, Germany

Martin Lohbreyer