Discharge Pressure Calculation From Torque In An HVAC System
AssigneeCarrier Corporation
InventorsDon A. Schuster, Adeyemi A. Adepetu, Rajendra K. Shah
Life of this patent
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Abstract
A method for determining discharge pressure for a compressor operatively connected to a condenser, an expansion device, and an evaporator in a serial relationship, includes receiving information indicative of a compressor torque or compressor current; and determining a discharge pressure in response to the receiving of the information.
Claims34
A method for determining discharge pressure for a compressor operatively connected to a condenser, an expansion device, and an evaporator in a serial relationship, comprising:
- receiving information indicative of a compressor torque or compressor current;
- receiving a compressor signal corresponding to a compressor speed of the compressor;
- and
- determining the discharge pressure from the received information and the compressor speed.
(canceled)
A discharge pressure determination system for a compressor, comprising:
- a vapor compression system including a compressor, a condenser, an expansion device and an evaporator operatively connected in a serial relationship in a refrigerant flow circuit;
- and
- a control unit configured for receiving information indicative of a compressor torque or compressor current and for determining the discharge pressure as a function of the received information.
A method for determining system subcooling in a vapor compression system including a compressor, a condenser, an expansion device and an evaporator operatively connected in a serial relationship in a refrigerant flow circuit, comprising:
- receiving information indicative of a compressor torque or compressor current;
- and
- determining a degree of system subcooling in response to the receiving of the information.
Dependencies are inferred from the claim text.