Circuit system for fuel cell vehicles

Abstract

The present invention relates to a circuit system for a fuel cell vehicle, comprising at least: a first circuit that guides a first fluid; a second circuit that guides a second fluid; a third circuit that guides a third fluid, and also includes a fourth circuit that guides the fourth fluid The fourth circuit of the fuel cell vehicle, in which at least one conveying device, at least one heat exchanger and / or convection device is provided, which heat exchanger and / or convection device can convey a fourth fluid to heat at least one interior space region of the fuel cell vehicle , and a heat exchanger that can be fed with a fourth fluid for heat exchange with the first fluid. Furthermore, the present invention relates to a fuel cell vehicle having such a circuit system. By means of such a circuit system, the flexibility and efficiency of the temperature regulation of the components of the fuel cell vehicle and of the vehicle interior are improved.

Description

technical field [0001] The invention relates to a circuit system for a fuel cell vehicle, wherein the circuit system comprises at least one first circuit conducting a first fluid, wherein at least one compressor is arranged along the provided flow direction of the first fluid , at least one heat exchanger as a condenser or gas cooler, at least one expansion mechanism and at least one further heat exchanger as an evaporator; a second circuit conducting the second fluid, said second circuit being operable in conjunction with the first A primary circuit operating in heat exchange connection, said second circuit being used in particular for cooling the traction battery; and a third circuit conducting a third fluid, said third circuit being operable in heat exchange connection with the second circuit, so Said third circuit is used in particular for cooling the fuel cell device. A fuel cell arrangement is an arrangement of one or more fuel cells, eg as a fuel cell stack. Electrica...

AI Technical Summary

Problems solved by technology

This has the disadvantage that the heating operation must be coordinated with the cooling of the traction battery, which is also arranged in the second circuit

Furthermore, the heat transferred from the second circuit 12 to the first circuit 50 in the heat exchanger is disadvantageously not available for heating the vehicle interior

The first circuit 50 does not have a heat pump in DE 10 2011 076737 A1 and this is not considered even more

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