Combined heat exchanger system

Abstract

A combined heat exchanger system includes a first heat exchanger (1) for cooling a first cooling medium, a second heat exchanger (2) for cooling a second cooling medium, and a compressor (8) for compressing the first cooling medium to be supplied to the first heat exchanger (1). The first heat exchanger (1) is separated from the second heat exchanger (2), being integrally assembled with the compressor (8) in such a way that the first compressor (1) can be directly and fluidically connected with the compressor (8). The first heat exchanger (1) liquid-cools the first cooling medium, which is outputted from the compressor (8), by using the second cooling medium that is cooled by the second heat exchanger (2).

Description

technical field [0001] The present invention relates to a composite heat exchanger having a plurality of heat exchangers respectively connected to, for example, an engine, an air conditioning system, and the like. Background technique [0002] Such a conventional compound heat exchanger described in Patent Document 1 is known. [0003] This conventional composite heat exchanger includes a first air-cooled heat exchanger (sub-radiator) for cooling cooling water for heating elements other than the engine, and a second air-cooled heat exchanger (condenser) for cooling refrigerant for vehicle air conditioning. radiator) and the third air-cooled heat exchanger (radiator) that cools the cooling water of the engine. The first air-cooled heat exchanger and the third air-cooled heat exchanger include: a core formed by laminating main sheets and cooling fins; and left and right cooling tanks connected to each other via the main sheet. The width of the core of the third air-cooled he...

AI Technical Summary

Problems solved by technology

Therefore, when the heat exchangers are arranged in the front-rear direction of the vehicle in order to secure the arrangement space, for example, when a large number of heat exchangers must be installed like a hybrid vehicle, the number of heat exchanger layers in the vehicle front-rear direction increases, The heat transfer rate of the heat exchanger on the downstream side of the cooling air decreases

[0011] On the other hand, when it is desired to reduce the number of heat exchanger layers in the front and rear directions of the vehicle, it is necessary to squeeze multiple heat exchangers into the same plane in the vehicle width direction, and it is difficult to secure the required space for heat exchange.

[0012] In this way, the greater the number of heat exchangers, the larger the overall size of the heat exchangers, the more difficult it is to ensure the space required for the installation of heat exchangers, and the increase in the number of heat exchanger layers in the front and rear directions of the vehicle will increase the size of the heat exchanger assembly. Difficulty inside the vehicle and worsens the heat transfer rate

[0013] In the technology described in the above-mentioned patent document 3, a lot of piping work is required, and the work is cumbersome.

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