US 12,442,599 B2
Heat exchanger with optimum baffle
Milosz Augustyn, Skawina (PL); Michal Belzowski, Skawina (PL); Zbigniew Figiel, Skawina (PL); Dawid Szostek, Skawina (PL); and Tomasz Stramecki, Skawina (PL)
Assigned to Valeo Autosystemy Sp. z o.o., Skawina (PL)
Appl. No. 17/773,943
Filed by Valeo Autosystemy Sp. z o.o., Skawina (PL)
PCT Filed Oct. 21, 2020, PCT No. PCT/EP2020/079622
§ 371(c)(1), (2) Date May 3, 2022,
PCT Pub. No. WO2021/089326, PCT Pub. Date May 14, 2021.
Claims priority of application No. 19461601 (EP), filed on Nov. 6, 2019.
Prior Publication US 2022/0381517 A1, Dec. 1, 2022
Int. Cl. F28D 7/16 (2006.01); F28D 9/00 (2006.01); F28F 9/22 (2006.01)
CPC F28D 7/1692 (2013.01) [F28D 9/0006 (2013.01); F28D 9/0031 (2013.01); F28F 9/22 (2013.01); F28F 2009/224 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A heat exchanger for a motor vehicle, comprising:
a first conduit for a first fluid, comprising a first manifold, a second manifold, and a plurality of tubes arranged in at least two parallel stacks having a first terminal tube and a second terminal tube opposite to the first terminal tube, the tubes being fluidly connected with the first manifold and the second manifold to provide at least one U-turn for the first fluid;
a second conduit for a second fluid comprising a housing body arranged to encapsulate at least partly the first conduit, wherein the second conduit is fluidly isolated from the first conduit; and
a baffle plate deployed in-between the stacks of the tubes and the manifolds enabling a U-turn of the second fluid between the baffle plate and the first manifold,
wherein the baffle plate comprises a first restricting member protruding towards the first manifold, configured to:
partially limit the U-turn of the second fluid at the level of the first terminal tubes of the stacks, and
reduce a volumetric flow of the second fluid flowing over a top portion of the first terminal tube when compared to the flow of the second fluid at any other point within the heat exchanger,
wherein the volumetric flow of the second fluid flowing under the second terminal tube is also reduced when compared to the flow of the second fluid at any other point within the heat exchanger,
wherein a portion of the flow of the second fluid is directed towards a central portion of the plurality of tubes,
wherein the first restricting member enables the second fluid to pass along the top portion of the housing body, and
wherein the first restricting member slopes towards the direction of the consecutive tube, so that the U-turn of the second fluid is gradually increased.