Heat exchanger for an internal combustion engine

Patent metadata

Field	Value
Publication number	US-2019353084-A1
Application number	US-201916415565-A
Country	US
Kind code	A1
Filing date	May 17, 2019
Priority date	May 18, 2018
Publication date	Nov 21, 2019
Grant date	—

Abstract

A heat exchanger for an internal combustion engine may include a plurality of first tubular bodies and a plurality of second tubular bodies for being flowed through by a gas. A plurality of first intermediate spaces may be disposed between the plurality of first tubular bodies defining a plurality of first coolant paths for being flowed through by a coolant. A plurality of second intermediate spaces may be disposed between the plurality of second tubular bodies defining a plurality of second coolant paths for being flowed through by the coolant. The plurality of first coolant paths may be fluidically connected to a first coolant distributor configured to distribute the coolant to the first coolant paths and a first coolant collector. The plurality of second coolant paths may be fluidically connected to a second coolant distributor configured to distribute the coolant to the second coolant paths and a second coolant collector.

First claim

1 . A heat exchanger, for an internal combustion engine, comprising:
a plurality of first tubular bodies for being flowed through by a gas, the plurality of first tubular bodies extending along a longitudinal direction and arranged spaced from one another along a stacking direction extending perpendicular to the longitudinal direction; a plurality of second tubular bodies for being flowed through by the gas, the plurality of second tubular bodies extending along the longitudinal direction and arranged spaced from one another along the stacking direction; the plurality of second tubular bodies arranged next to the plurality of first tubular bodies along a transverse direction extending perpendicular to the stacking direction and perpendicular to the longitudinal direction; a plurality of first intermediate spaces disposed along the stacking direction between the plurality of first tubular bodies defining a plurality of first coolant paths for being flowed through by a coolant; a plurality of second intermediate spaces disposed along the stacking direction between the plurality of second tubular bodies defining a plurality of second coolant paths for being flowed through by the coolant; the plurality of first coolant paths fluidically connected to a first coolant distributor configured to distribute the coolant to the plurality of first coolant paths and to a first coolant collector structured and arranged to collect the coolant after the coolant has flowed through the plurality of first coolant paths; the plurality of second coolant paths fluidically connected to a second coolant distributor configured to distribute the coolant to the plurality of second coolant paths and to a second coolant collector structured and arranged to collect the coolant after the coolant has flowed through the plurality of second coolant paths; and wherein the first coolant distributor and the second coolant distributor are arranged opposite one another along the transverse direction and wherein the first coolant collector and the second coolant collector are arranged opposite one another along the transverse direction.

2 . The heat exchanger according to claim 1 , further comprising, arranged between the plurality of first tubular bodies and the plurality of second tubular bodies, at least one separating wall extending along the stacking direction fluidically separating the plurality of first coolant paths from the plurality of second coolant paths.

3 . The heat exchanger according to claim 2 , wherein the plurality of first tubular bodies and the plurality of second tubular bodies are arranged in a common housing, wherein the at least one separating wall is part of the housing.

4 . The heat exchanger according to claim 1 , wherein at least one of:
the first coolant distributor and the first coolant collector are arranged in a region of longitudinal ends of the plurality of first tubular bodies, the longitudinal ends of the plurality of first tubular bodies disposed opposite one another along the longitudinal direction; the second coolant distributor and the second coolant collector are arranged in a region of longitudinal ends of the plurality of second tubular bodies, the longitudinal ends of the plurality of second tubular bodies disposed opposite one another along the longitudinal direction.

5 . The heat exchanger according to claim 1 , wherein the first coolant distributor and the first coolant collector are arranged on a first transverse side, wherein the first transverse side and a second transverse side are disposed on opposite sides of the plurality of first tubular bodies and the plurality of second tubular bodies along the transverse direction, and wherein the second coolant distributor and the second coolant collector are arranged on the second transverse side.

6 . The heat exchanger according to claim 1 , wherein each of the first coolant distributor, the second coolant distributors, the first coolant collector, and the second coolant collector are arranged, in a viewing direction along the stacking direction, in a region of an associated corner of a virtual rectangle.

7 . The heat exchanger according to claim 1 , wherein the first coolant distributor, the second coolant distributor, the first coolant collector, and the second coolant collectors each include a nozzle extending in the stacking direction having a nozzle opening facing the stacking direction.

8 . The heat exchanger according to claim 7 , wherein the nozzles of each of the first coolant distributor, the second coolant distributors, the first coolant collector, and the second coolant collector project over a first tubular body and a second tubular body along the stacking direction, and wherein the first tubular body and the second tubular body are a last tubular body of a stack of the plurality of first tubular bodies and a stack of the plurality of second tubular bodies, respectively.

9 . The heat exchanger according to claim 1 , wherein the plurality of first tubular bodies and the plurality of second tubular bodies are at least one of configured and arranged symmetrically with respect to a symmetry plane extending perpendicularly to the transverse direction.

10 . The heat exchanger according to claim 1 , wherein the plurality of first coolant paths and the plurality of second coolant paths are at least one of configured and arranged symmetrically with respect to a symmetry plane extending perpendicularly to the transverse direction.

11 . The heat exchanger according to claim 1 , wherein along the transverse direction, next to each of the plurality of first tubular bodies one of the plurality of second tubular bodies is arranged, which together define a tubular body pair of a plurality of tubular body pairs, wherein at least one of the plurality of tubular body pairs is defined by two tubular bodies substantially configured identically.

12 . The heat exchanger according to claim 1 , wherein along the transverse direction, next to each of the plurality of first coolant paths one of the plurality of second coolant paths is arranged, which together define a coolant path pair of a plurality of coolant path pairs, wherein at least one of the plurality of coolant path pairs is defined by two coolant paths substantially configured identically.

13 . The heat exchanger according to claim 1 , wherein the plurality of first tubular bodies and the plurality of second tubular bodies are configured as identical components.

14 . The heat exchanger according to claim 1 , wherein at least one of i) at least one of the plurality of first tubular bodies and ii) at least one of the plurality of second tubular bodies is structured as a flat tube having a tube height along the stacking direction that is one fifth or less of a tube width along the transverse direction.

15 . An internal combustion engine for a motor vehicle, comprising an exhaust gas system, a fresh air system, and a heat exchanger including:
a plurality of first tubular bodies for being flowed through by a gas, the plurality of first tubular bodies extending along a longitudinal direction and arranged spaced apart from one another along a stacking direction extending perpendicular to the longitudinal direction; a plurality of second tubular bodies for being flowed through by the gas, the plurality of second tubular bodies extending along the longitudinal direction and arranged spaced apart from one another along the stacking direction; the plurality of second tubular bodies arranged next to the plurality of first tubular bodies along a transverse direction extending perpendicular to the stacking direction and

Assignees

• Mahle Int Gmbh

Inventors

• Wegner Juergen

Classifications

• F28D2021/0026

  for combustion engines, e.g. for gas turbines or for Stirling engines · CPC title

• F28D1/053

  the conduits being straight · CPC title

• F28D7/00

  Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall · CPC title

• F01P3/20 Primary

  Cooling circuits not specific to a single part of engine or machine (F01P3/22 takes precedence) · CPC title

• F02B29/0462

  Liquid cooled heat exchangers · CPC title