Patent ID: 8037698
Filing Date: 2011-10-18
Classification: B60H,F25B

Abstract:
1. An air conditioning refrigerant circuit for a motor vehicle comprising: at least one compressor; a heat-delivering heat exchanger downstream of the compressor; an expansion element; a heat-absorbing heat exchanger downstream of the expansion element, wherein the the compressor, the heat-delivering heat exchanger, the expansion element, and the heat-absorbing heat exchanger are in series in respect of a flow path of a refrigerant; an additional heat exchanger disposed between the heat-delivering heat exchanger and the expansion element, the heat exchanger thermally coupled to at least one switchable cooling means, wherein a temperature of the cooling means facilitates reaching a temperature below a temperature of the refrigerant flowing from the heat-delivering heat exchanger; and an internal heat exchanger integrated into the flow path between the heat-absorbing heat exchanger and the compressor and into the flow path between the heat-delivering heat exchanger and the expansion element.