Patent ID: 11874033
Assignee: HILL PHOENIX, INC.
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 0:
1. A method comprising:
receiving, by at least one processing device and from a variable frequency drive electrically coupled to one or more compressors of a refrigeration system, operation information of the one or more compressors;
comparing, by the at least one processing device, the operation information of the one or more compressors to an operation threshold;
determining, by the at least one processing device and based on the comparison, that the operation information of the one or more compressors satisfies the operation threshold;
receiving, by the at least one processing device and from one or more sensors fluidly coupled to the refrigeration system, a value of at least one of a temperature or a pressure of a working fluid in the refrigeration system;
comparing, by the at least one processing device, the value to a fluid parameter threshold that comprises (i) a respective temperature threshold of the working fluid that indicates a low load condition of the refrigeration system, or (ii) a pressure threshold of the working fluid that indicates the low load condition of the refrigeration system;
determining, by the at least one processing device and based on the comparison, that the value satisfies the fluid parameter threshold by being at or below the fluid parameter threshold; and
changing, by the at least one processing device and based on the determination that the operation information of the one or more compressors satisfies the operation threshold or the value of the working fluid satisfies the fluid parameter threshold, an operation parameter of a component of the refrigeration system, increasing at least one of: (i) a velocity of the working fluid in a piping assembly fluidly coupled to the one or more compressors, or (ii) a flow rate of an oil in the piping assembly flowing into the one or more compressors.