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US 10,240,876 B2Granted
Heat exchanger
AssigneeMahle International GmbH
InventorsStefan Neher, Johannes Pfeffer, Alexander Steck, Helmut Weiser
Life of this patent
Estimating the term…
Abstract
A heat exchanger includes at least one first flow channel for a first medium, at least one second flow channel for a second medium, and at least one bottom that can be connected to the housing. The bottom has at least one expansion element.
Claims19
A heat exchanger for exhaust gas cooling comprising:
- at least one housing having at least one open end having a periphery,
- a plurality of first flow ducts for a first medium,
- at least one second flow duct for a second medium,
- at least one bottom which is connected to the housing such that the bottom extends across the at least one open end of the housing, the bottom having an interior surface that faces the first flow ducts and an exterior surface that opposes the interior surface,
- wherein the bottom comprises:
- a surface orifice lattice comprising a plurality of surface orifices that are connected in a fluid conducting manner to the plurality of first flow ducts, respectively, and
- at least one expansion element,
- wherein the housing includes a flange that extends perpendicular to the housing, the flange pointing towards an interior of the housing, such that a distal end of the flange is positioned inside of the housing,
- wherein the bottom is connected to the flange via the at least one expansion element,
- wherein the at least one expansion element includes a first frame element, a second frame element and a third frame element,
- wherein the first frame element has a first end portion and a second end portion, the second frame element has a first end portion and a second end portion and the third frame element has a first end portion and a second end portion,
- wherein each of the first frame element, the second frame element and the third frame element have a bend between the respective first end portion and the respective second end portion thereof, such that each of the first frame element, the second frame element and the third frame element are bent,
- wherein the first end portion of the first frame element is connected to an inner surface of the flange that faces the first flow ducts and the second end portion of the first frame element is connected to the first end portion of the second frame element,
- wherein the second end portion of the second frame element is connected to the first end portion of the third frame element, and
- wherein the second end portion of the third frame element is connected to the exterior surface of the bottom.
12 more elements
Dependencies are inferred from the claim text.