US 11,987,115 B2
Vehicle heat exchange system and dump truck
Kazunori Ishihara, Mito (JP); Jun Ikeda, Tsuchiura (JP); Takaaki Tanaka, Ushiku (JP); Yoshifumi Nabeshima, Tsukuba (JP); Hideaki Iijima, Tsukuba (JP); and Tsukasa Akiyama, Tsukuba (JP)
Assigned to HITACHI CONSTRUCTION MACHINERY CO., LTD., Tokyo (JP)
Appl. No. 17/634,585
Filed by HITACHI CONSTRUCTION MACHINERY CO., LTD., Tokyo (JP)
PCT Filed Feb. 19, 2020, PCT No. PCT/JP2020/006512
§ 371(c)(1), (2) Date Feb. 11, 2022,
PCT Pub. No. WO2021/166117, PCT Pub. Date Aug. 26, 2021.
Prior Publication US 2022/0281311 A1, Sep. 8, 2022
Int. Cl. B60K 11/04 (2006.01); B60K 11/06 (2006.01); F01P 3/18 (2006.01)
CPC B60K 11/04 (2013.01) [B60K 11/06 (2013.01); F01P 2003/182 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A vehicle heat exchange system comprising:
a plurality of cooling fans for generating a flow of cooling air;
a high-temperature side radiator unit configured to transfer heat between a cooling liquid discharged from a high-temperature heat source and the cooling air generated by the plurality of cooling fans, and supply the cooling liquid to the high-temperature heat source again; and
a low-temperature side radiator unit configured to transfer heat between the cooling liquid discharged from a low-temperature heat source whose temperature is less than that of the high-temperature heat source and the cooling air generated by the plurality of cooling fans, and supply the cooling liquid to the low-temperature heat source again,
wherein
the high-temperature side radiator unit includes:
a first high-temperature side radiator that faces a first fan, which is a part of the plurality of cooling fans, and is connected to a high-temperature side discharge pipe for discharging the cooling liquid from the high-temperature heat source;
a second high-temperature side radiator that faces a second fan, which is different from the first fan among the plurality of cooling fans, and is connected to a high-temperature side supply pipe for supplying the cooling liquid to the high-temperature heat source; and
a high-temperature side connection pipe for supplying the cooling liquid from the first high-temperature side radiator to the second high-temperature side radiator, and the low-temperature side radiator unit includes:
a first low-temperature side radiator that is arranged so as to face the second high-temperature side radiator on an upstream side of the flow of the cooling air, and is connected to a low-temperature side discharge pipe for discharging the cooling liquid from the low-temperature heat source;
a second low-temperature side radiator that is arranged so as to face the first high-temperature side radiator on the upstream side of the flow of the cooling air, and is connected to a low-temperature side supply pipe for supplying the cooling liquid to the low-temperature heat source; and
a low-temperature side connection pipe for supplying the cooling liquid from the first low-temperature side radiator to the second low-temperature side radiator.