EXHAUST GAS RECIRCULATION COOLING ELEMENT FOR AN INTERNAL COMBUSTION ENGINE
1 Assignment
0 Petitions
Accused Products
Abstract
The invention relates to an exhaust gas recirculation cooling element (1) comprising a heat exchanger (2) having several heat exchange units (11, 12, 13) that are introduced between the inflow region (3) and the outflow region (7) of the exhaust gas (AG). Said units comprise cooling tubes with cooling ribs. The heat exchanger (2) is surrounded by a housing (16), the lateral walls thereof (19) being arranged at a distance in relation to the perforated lateral walls (10). Guide channels (28) are arranged between the closed lateral walls (9) of the heat exchanger (2) and the adjacent lateral walls (20) of the housing (16), 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 (11, 12, 13).
-
Citations
40 Claims
-
1-22. -22. (canceled)
-
23. An exhaust gas recirculation cooling element for an internal combustion engine, comprising:
-
a housing having coolant fittings, a heat exchange unit arranged in the housing and including a plurality of cooling pipes having external cooling fins and configured for flow-through of a coolant, a heat exchanger insert having two closed sidewalls and two perforated sidewalls, with the plurality of cooling pipes secured to the perforated sidewalls; guide channels for transporting the coolant from and to the plurality of cooling pipes, said guide channels configured as a gap disposed between the heat exchanger insert and the housing; and a plurality of ribs for delimiting the guide channels, wherein the ribs are formed on the housing and oriented inwardly or are formed on the heat exchanger and oriented outwardly, wherein the ribs are oriented diagonally in the region of the closed sidewalls, so that diagonal guide channels are formed for transferring the coolant to a coolant inlet side and from a coolant outlet side of a heat exchange unit along the closed sidewalls. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
-
Specification