The invention relates to an apparatus for cooling, having a loop (60) carrying a refrigerant, a first heat exchanger (10) for outputting heat to a heat reservoir (12), a second heat exchanger (114) for extracting heat from a chamber (116) to be cooled, a compressor (18) and an expansion device (120)
The invention relates to an apparatus for cooling, having a loop (60) carrying a refrigerant, a first heat exchanger (10) for outputting heat to a heat reservoir (12), a second heat exchanger (114) for extracting heat from a chamber (116) to be cooled, a compressor (18) and an expansion device (120), wherein in that a first further heat exchanger (70) is provided, which enables a heat transfer between the loop (60) carrying the refrigerant and a coolant loop (80). The invention also relates to a method for cooling.
대표청구항▼
1. An apparatus for cooling, having a loop (60) for carrying a refrigerant, a first heat exchanger (10) for outputting heat to a heat reservoir (12), a second heat exchanger (114) for extracting heat from a chamber (116) to be cooled, a compressor (18) and an expansion device (120), characteri
1. An apparatus for cooling, having a loop (60) for carrying a refrigerant, a first heat exchanger (10) for outputting heat to a heat reservoir (12), a second heat exchanger (114) for extracting heat from a chamber (116) to be cooled, a compressor (18) and an expansion device (120), characterized in that a first further heat exchanger (70) is provided, which enables a heat transfer between the loop (60) carrying the refrigerant and a coolant loop (80), wherein the compressor (18) is operated directly electrically by a starter/generator (72), a second further heat exchanger is provided between the coolant loop and a motor oil, and a motor oil pump is provided in a motor oil loop. 2. The apparatus of claim 1, wherein the first further heat exchanger (70) is disposed downstream of the compressor (18) in the loop (60) carrying the refrigerant. 3. The apparatus of claim 1, wherein a water pump (74) of the coolant loop (80) can be operated directly electrically by a starter/generator (72) or a battery. 4. The apparatus of claim 1, wherein the first heat exchanger (10) includes a gas cooler. 5. The apparatus of claim 1, wherein CO2is provided as the refrigerant. 6. The apparatus of claim 1, wherein a reversible valve (76) is provided, which can reroute the coolant loop to avoid additional heat flows. 7. The apparatus of claim 1, wherein an inner heat exchanger (28) is provided between the first heat exchanger (10) and the second heat exchanger (114). 8. A method for cooling by means of an apparatus having a loop (60) carrying a refrigerant, a first heat exchanger (10) for outputting heat to a heat reservoir (12), a second heat exchanger (114) for extracting heat from a chamber (116) to be cooled, a compressor (18) and an expansion device (12), having the following steps: driving the compressor (18), and conducting the refrigerant through the loop (60) carrying the refrigerant, characterized in that the refrigerant is conducted through a first further heat exchanger (70), in which heat is transferred between the loop (60) carrying the refrigerant and a coolant loop (80), wherein the compressor (18) is operated directly electrically by a starter/generator (72), a coolant loop in the coolant loop is conducted through a second further heat exchanger, in which a heat exchange with a motor oil takes place, and the motor oil is pumped through the second further heat exchanger by a motor oil pump. 9. The method of claim 8, wherein a water pump (74) of the coolant loop (80) is operated directly electrically by a starter/generator (72) or a battery. 10. The method of claim 8, wherein CO2is used as the refrigerant. 11. The method of claim 8, wherein a reversible valve is used, which reroutes the coolant loop to avoid additional heat flows. 12. The method of claim 8, wherein an inner heat exchanger (28) is used between the first heat exchanger (10) and the second heat exchanger (114).
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