Mahle International Gmbh

Bernd Kraemer

Karsten Emrich

Albrecht Siegel

Gaelle Schmidgall

Sabine Dreizler

Christian Heneka

Simon Hund

Predrag Panic

Vahid Havaldar

Christian Faber

Matthias Schuele

Bhushan Dahake

Lucas Weithoff

A filter arrangement may include a filter element and a gasket element. The gasket element may include a substantially circular flow-through opening and a locking collar. The locking collar may be arranged along a circumference of the flow-through opening with respect to a circumferential direction. The locking collar may form a hollow cylindrical installation space. The filter element may include a filter element body and a substantially hollow-cylindrical counter locking collar. The counter locking collar may include an open axial side and a covered axial side which may be spaced apart from each other with respect to an axial axis. The covered axial side of the counter locking collar may be covered by said filter element body. The counter locking collar may be at least partially inserted into the hollow cylindrical installation space of the locking collar.

Filter arrangement

A heat exchanger may include a tubular housing, a flange ring, two bases, and heat exchanger tubes running through the housing and respectively held at a longitudinal end side in the bases, a first flow channel formed therein, and a second flow channel formed between the tubes and the housing. The housing may be formed from first and second housing parts each being pot-shaped and having a housing portion, an outwardly widened flange ring portion, and a base. The housing parts may be connected to one another via the flange ring portions that may delimit an annular space. On the first housing part, inlet and outlet connecting-pieces for coolant may be provided. Between the housing and the heat exchanger tubes, at least one separator may be arranged, on which at least one blade may be provided, the blade engaging at least partly into the annular space and at least reducing a circumferential flow therein.

Heat exchanger with a separator

An exhaust gas heat exchanger may include a housing and a heat exchanger block arranged therein, the heat exchanger block including tube plates and a tube bundle having a plurality of flat tubes held at longitudinal ends of the flat tubes in rim holes formed in a complementary manner thereto in the tube plates. A first flow path for exhaust gas may extend in the flat tubes, and a second flow path for coolant may extend around the flat tubes and within the housing. The housing may include a plurality of latching contours, which interact with a plurality of counterpart latching contours arranged on an associated tube plate to fix the tube plates and the heat exchanger block on the housing.

Exhaust gas heat exchanger with latching contours

A heat exchanger is provided that includes a housing and an exchanger region which is arranged in the housing and has tubes and at least one base, wherein the tubes are connected to the at least one base, wherein the housing is manufactured from a plastic and has a housing inner surface, wherein the housing inner surface is covered at least in regions or in sections by at least one metallic element for protecting the housing from a thermal load. The invention further relates to a method for producing a heat exchanger.

Heat exchanger and method for producing a heat exchanger

Growing community of inventors

Schwieberdingen, Germany

Bernd Kraemer