System and method for cooling or heating
AssigneeRobert Bosch GmbH
InventorsStephan Leuthner, Peter Satzger, Petra Kanters
Life of this patent
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Abstract
The invention relates to a system for cooling and heating, having a first heat exchanger (10) for outputting heat to and extracting it from a heat reservoir (12); a second heat exchanger (14) for extracting heat from and outputting it into a space (16) to be cooled or heated; a compressor (18); an expansion device (20); and means (22, 24) for switchover between a cooling mode and a heating mode; wherein the switchover means (22, 24) are integrated with a module (26). The invention also relates to a method for switching over between a cooling mode and a heating mode.
Claims29
A system for cooling and heating, having
- a first heat exchanger (10) for outputting heat to and extracting it from a heat reservoir (12),
- a second heat exchanger (14) for extracting heat from and outputting it into into a space (16) to be cooled or heated,
- a compressor (18),
- an expansion device (20), and
- means (22, 24) for switchover between a cooling mode and a heating mode,
- characterized in that the switchover means (22, 24) are integrated with a module (26).
The system of one of the foregoing claims, characterized in that in the first valve (22)
- a first port (30) communicates with the first heat exchanger (10),
- a second port (32) communicates with the expansion device (20),
- a third port (34) communicates with the internal heat exchanger (28);
- and
- a fourth port (36) communicates with the second heat exchanger (14).
The system of one of the foregoing claims, characterized in that in the second valve (24)
- a first port (38) communicates with the first heat exchanger (10),
- a second port (40) communicates with the expansion device (20),
- a third port (42) communicates with the internal heat exchanger (28);
- and
- a fourth port (44) communicates with the second heat exchanger (14).
The system of one of the foregoing claims, characterized in that
- in the cooling mode, the first port (30) and the third port (34) of the first valve (22) communicate with one another, and the second port (32) and the fourth port (36) of the first valve (22) communicate with one another;
- and
- in the cooling mode, the first port (38) and the third port (42) of the second valve (24) communicate with one another, and the second port (40) and the fourth port (44) of the second valve (24) communicate with one another.
The system of one of the foregoing claims, characterized in that
- in the heating mode the first port (30) and the second port (32) of the first valve (22) communicate with one another, and the third port (34) and the fourth port (36) of the first valve (22) communicate with one another;
- and
- in the cooling mode, the first port (38) and the second port (40) of the second valve (24) communicate with one another, and the third port (42) and the fourth port (44) of the second valve (24) communicate with one another.
The system of one of the foregoing claims, characterized in that the switchover means (22, 24) are actuatable at least in part by a common drive mechanism.
The system of one of the foregoing claims, characterized in that the switchover means (22, 24) are actuatable at least in part by a hydraulic drive mechanism.
The system of one of the foregoing claims, characterized in that the internal heat exchanger (28) is integrated with the module (26).
The system of one of the foregoing claims, characterized in that the expansion device (20) is integrated with the module (26).
The system of one of the foregoing claims, characterized in that the compressor (18) is integrated with the module (26).
The system of one of the foregoing claims, characterized in that a collector (46) is integrated with the module (26).
The system of one of the foregoing claims, characterized in that an oil filter is integrated with the module (26).
The system of one of the foregoing claims, characterized in that a hot-gas bypass valve (50) is integrated with the module (26).
The system of one of the foregoing claims, characterized in that pressure sensors are integrated with the module (26).
The system of one of the foregoing claims, characterized in that the controller of the valves is integrated with the module (26).
The system of one of the foregoing claims, characterized in that at least some of the components that can be integrated with the module (26) are disposed in a common pressure housing.
The system of one of the foregoing claims, characterized in that at least some of the components that can be integrated with the module (26) are disposed in a common pressure housing embodied as a collector.
The system of one of the foregoing claims, characterized in that CO2 is provided as the medium for the cooling loop and heating loop.
The system of one of the foregoing claims, characterized in that the internal heat exchanger (28) is constructed by μ-structuring.
A method for switchover between a cooling mode and a heating mode by means of a system having a first heat exchanger (10) for outputting heat into and extracting it from a heat reservoir (12), a second heat exchanger (14) for extracting heat from and outputting it into a space (16) to be cooled or heated, a compressor (18), an expansion device (20), and means (22, 24) for switchover between a cooling mode and a heating mode, characterized in that the switchover means (22, 24) are integrated with a module (26).
Dependencies are inferred from the claim text.