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US 2025/0027672 A1Published application
Refrigerant compensation for refrigeration systems
AssigneeTrane International Inc.
InventorsChangiz Mirza-Tolouee, Sam Sills
Life of this patent
Estimating the term…
Abstract
A heating, ventilation, air conditioning, and refrigeration (HVACR) system includes a liquid refrigerant control valve fluidly connecting a liquid refrigerant line to a connection point downstream of an expansion device. A controller monitors a pressure or a mode change in the system, and activates the liquid refrigerant control valve to temporarily inject liquid refrigerant into the connection point downstream of the expansion device for refrigerant compensation.
Claims20
A heating, ventilation, air conditioning and refrigeration (HVACR) system comprising:
- a liquid refrigerant line;
- an expansion device having an inlet fluidly connecting to the liquid refrigerant line to receive a liquid refrigerant from the liquid refrigerant line;
- a liquid refrigerant control valve fluidly connecting the liquid refrigerant line and a connection point downstream of the expansion device;
- and
- a controller configured to:
- monitor a pressure or a mode change in the system;
- and
- activate the liquid refrigerant control valve to inject the liquid refrigerant into the connection point based on a result of the monitoring.
5 more elements
A method comprising:
- providing a liquid refrigerant control valve fluidly connecting a liquid refrigerant line and a connection point downstream of an expansion device in a heating, ventilation, air conditioning and refrigeration (HVACR) system, the expansion device having an inlet fluidly connecting to the liquid refrigerant line to receive a liquid refrigerant from the liquid refrigerant line;
- monitoring a pressure or a mode change in the system;
- and
- activating the liquid refrigerant control valve to inject the liquid refrigerant into the connection point, based on a result of the monitoring.
1 more element
Dependencies are inferred from the claim text.