Back to results
US 12,203,685 B2Granted
Refrigeration apparatus
AssigneeDaikin Industries, Ltd.
InventorsMasaaki Takegami, Shuichi Taguchi
Life of this patent
Estimating the term…
Abstract
A refrigerant circuit has a liquid passage that allows a receiver to communicate with a utilization heat exchanger, and a first expansion valve provided in the liquid passage. The controller opens the first expansion valve when the compression element is in the stopped state and a pressure in the receiver exceeds a predetermined first pressure.
Claims20
A refrigeration apparatus comprising:
- a heat source circuit having a compressor, a heat source heat exchanger, and a receiver;
- and
- a utilization circuit having a utilization heat exchanger;
- and
- a controller, wherein
- the heat source circuit and the utilization circuit are connected to form a refrigerant circuit that performs a refrigeration cycle,
- the refrigerant circuit includes a liquid passage that allows the receiver to communicate with the utilization heat exchanger, and a first expansion valve provided in the liquid passage, and
- the controller opens the first expansion valve based on the compressor being in a stopped state and a pressure in the receiver exceeding a predetermined first pressure.
5 more elements
A heat source unit constituting a refrigeration apparatus together with a utilization unit provided with a utilization circuit having a utilization heat exchanger, the heat source unit comprising:
- a heat source circuit having a compressor, a heat source heat exchanger, and a receiver;
- and
- a heat source controller, wherein
- the heat source circuit and the utilization circuit are connected to form a refrigerant circuit that performs a refrigeration cycle,
- the refrigerant circuit includes a liquid passage that allows the receiver to communicate with the utilization heat exchanger, and a first expansion valve provided in the liquid passage, and
- the heat source controller opens the first expansion valve based on the compressor being in a stopped state and a pressure in the receiver exceeding a predetermined first pressure.
3 more elements
Dependencies are inferred from the claim text.