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US 2015/0306934 A1Published application
Vehicle heat exchanger
AssigneeDenso Corporation
InventorsShingo OONO, Shota AKAGI
Life of this patent
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Abstract
A vehicle heat exchanger includes a low-temperature side radiator, a condenser, and a high-temperature side radiator, which are aligned in an airflow direction and are integrated together. The low-temperature side radiator includes an inflow portion and an upper path, which are located in an upper portion thereof. In addition, the low-temperature side radiator includes a lower path and an outlet portion, which are located in a lower portion thereof and communicate with the upper path. A subcooler of the condenser overlaps, in the airflow direction, with at least a part of the lower path of the low-temperature side radiator. As a result, thermal influence by the low-temperature side radiator on the subcooler of the condenser can be reduced.
Claims17
A vehicle heat exchanger, comprising:
- a low-temperature side radiator that exchanges heat between a first coolant and air to cool the first coolant;
- a condenser that exchanges heat between a refrigerant of a refrigeration cycle and the air to cool the refrigerant;
- and
- a high-temperature side radiator that exchanges heat between a second coolant and the air to cool the second coolant, the second coolant having a higher temperature than the first coolant that is cooled by the low-temperature side radiator, wherein
- the low-temperature side radiator, the condenser, and the high-temperature side radiator are aligned in an airflow direction such that the air for heat exchange passes therethrough,
- the low-temperature side radiator includes
- an inflow portion into which the first coolant flows,
- an upstream path, the first coolant flowing, from the inflow portion into the upstream path, to pass through the upstream path, the upstream path cooling the first coolant by exchanging heat between the first coolant and the air,
- a downstream path that is located downstream, in a coolant flowing direction, from the upstream path, the downstream path exchanging heat between the first coolant, which passed through the upstream path, and the air to further cool the first coolant, and
- an outlet portion, the first coolant, which passed through the downstream path, flowing out of the outlet portion,
- the condenser includes
- a condenser core that exchanges heat between the refrigerant and the air to cool the refrigerant, and
- a subcooler that is located downstream, in a refrigerant flowing direction, from the condenser core, the subcooler exchanging heat between the refrigerant, which passed through the condenser core, and the air to subcool the refrigerant, and
- the subcooler overlaps, in the airflow direction, with at least a portion of the downstream path.
11 more elements
A vehicle heat exchanger comprising:
- a low-temperature side radiator that exchanges heat between a first coolant and air to cool the first coolant;
- a condenser that exchanges heat between a refrigerant of a refrigeration cycle and the air to cool the refrigerant;
- and
- a high-temperature side radiator that exchanges heat between a second coolant and the air to cool the second coolant, the second coolant having a higher temperature than the first coolant that is cooled by the low-temperature side radiator, wherein
- the low-temperature side radiator, the condenser, and the high-temperature side radiator are aligned in an airflow direction such that the air for heat exchange passes therethrough,
- the low-temperature side radiator includes
- an inflow portion that is located in an upper portion of the low-temperature side radiator,
- an upper path that is in communication with the inflow portion, the upper path constituting a coolant flow channel and exchanging heat between the first coolant and the air to cool the first coolant,
- a lower path that is located below the upper path, the lower path constituting a coolant flow channel and exchanging heat between the first coolant, which passed through the upper path, and the air to further cool the first coolant, and
- an outlet portion that is located in a lower portion of the low-temperature side radiator, the outlet portion in communication with the lower path,
- the condenser includes
- a condenser core that exchanges heat between the refrigerant and the air to cool and condense the refrigerant, thereby changing the refrigerant into liquid phase, and
- a subcooler that is located below the condenser core, the subcooler exchanging heat between the liquid-phase refrigerant, which flowed in from the condenser core, and the air to subcool the liquid-phase refrigerant, and
- the subcooler overlaps, in the airflow direction, with at least a portion of the lower path.
11 more elements
Dependencies are inferred from the claim text.