Coolant circuit, in particular a heat pump circuit
AssigneeBayerische Motoren Werke Aktiengesellschaft
InventorsRobert Herbolzheimer, Robert Mager
Life of this patent
Estimating the term…
Abstract
A heat pump circuit has the following components when seen in the flow direction: a compressor; a condenser or gas cooler; a first coolant/air heat exchanger as a sub-cooler, via which the coolant dispenses heat; a first expansion element; a first coolant/air heat exchanger, via which the coolant absorbs heat from the ambient air; a second expansion element; and a third coolant/air heat exchanger, via which the coolant absorbs heat from the ambient air. The arrangement of the heat exchanger is in front of the drive engine relative to the travel direction. The danger of the ambient heat exchanger freezing is minimized. With this arrangement.
Claims13
A refrigerant circuit, comprising:
- a compressor;
- a condenser or gas cooler;
- a first heat exchanger via which refrigerant discharges heat;
- a first expansion member;
- a second heat exchanger via which the refrigerant absorbs heat from ambient air;
- a second expansion member;
- and
- a third heat exchanger via which the refrigerant absorbs heat from the ambient air, wherein
- the refrigerant in the refrigerant circuit flows in the following order forming a single cooling loop for the refrigerant:
- the compressor, the condenser or gas cooler, the first heat exchanger, the first expansion member, the second heat exchanger, the second expansion member, and the third heat exchanger,
- the first heat exchanger is arranged such that heated air which is discharged by the first heat exchanger flows against, through or around the third heat exchanger,
- the refrigerant circuit is arranged in a vehicle, and
- when viewed from a front of the vehicle towards a back of the vehicle, the second heat exchanger is arranged in front of the first heat exchanger which is arranged in front of the third heat exchanger, such that the second, first, and third heat exchangers are arranged in a row one behind another.
Dependencies are inferred from the claim text.