US 12,305,936 B2
Heat exchanger for an internal combustion engine, having a stiffening element in the region of a join between two partitions, and internal combustion engine having a heat exchanger
Oliver Bichi Zhang, Munich (DE)
Assigned to Bayerische Motoren Werke Aktiengesellschaft, Munich (DE)
Appl. No. 17/928,357
Filed by Bayerische Motoren Werke Aktiengesellschaft, Munich (DE)
PCT Filed Jun. 30, 2021, PCT No. PCT/EP2021/068005
§ 371(c)(1), (2) Date Nov. 29, 2022,
PCT Pub. No. WO2022/022934, PCT Pub. Date Feb. 3, 2022.
Claims priority of application No. 10 2020 120 332.2 (DE), filed on Jul. 31, 2020.
Prior Publication US 2023/0313764 A1, Oct. 5, 2023
Int. Cl. F28F 9/007 (2006.01); F02M 26/32 (2016.01); F28D 9/00 (2006.01); F28F 9/02 (2006.01)
CPC F28F 9/0075 (2013.01) [F02M 26/32 (2016.02); F28D 9/0031 (2013.01); F28F 9/0221 (2013.01); F28F 2225/04 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A heat exchanger for an internal combustion engine for transferring heat between at least two fluids, comprising:
a housing having a housing wall and a housing interior which is delimited at least in regions by the housing wall, and which has a fluid inlet region for introducing a first fluid of the at least two fluids into the housing interior and a fluid outlet region for discharging of the first fluid from the housing interior;
at least two partitions which are accommodated at least predominantly in the housing interior and which are connected to the housing wall of the housing in at least one connecting region, and which, in order to separate the at least two fluids from one another, at least in regions delimit a fluid-receiving space through which a second fluid of the at least two fluids flows, wherein
the at least two partitions are connected to one another at least at a joining region which is assigned to the fluid inlet region and adjoins the fluid-receiving space in a main fluid flow direction of the first fluid, wherein the at least one connecting region is located at a lengthwise terminal end of the joining region along an axis perpendicular to a main fluid flow direction of the first fluid, and wherein at least one of the two partitions directly contacts and is directly connected to the housing wall at the connecting region;
at least one stiffening element which, in order to stiffen at least in regions at least one stiffening portion of the joining region adjoining the connecting region, is arranged at the joining region and is configured to brace the stiffening portion at least against a buckling load induced by a length change in an event of a temperature-related length change of the joining region.