AIRCRAFT REFRIGERATION UNIT EVAPORATOR HEATER

摘要

A refrigeration unit and a method of regulating a temperature of a compartment of an aircraft is described. The refrigeration unit includes an evaporator receptive of an airflow and a refrigerant and operatively arranged to transfer heat from the airflow to the refrigerant in order to cool the airflow as the airflow travels from an inlet at an inlet side of the evaporator to an outlet at an outlet side of the evaporator. The outlet is in fluid communication with a compartment of the aircraft. A heater is positioned at the inlet side of the evaporator and heats the airflow before the airflow passes through the outlet of the evaporator. A compressor receives the refrigerant from the output of the evaporator and pressurizes the refrigerant. A condenser receives the refrigerant from the compressor and condenses the refrigerant to liquid phase.

主权项

1. A refrigeration unit for an aircraft comprising:
an evaporator receptive of an airflow and a refrigerant and operatively arranged to transfer heat from the airflow to the refrigerant in order to evaporate at least some of the refrigerant and cool the airflow as the airflow travels from an inlet at an inlet side of the evaporator to an outlet at an outlet side of the evaporator and the refrigerant travels from an input of the evaporator to an output of the evaporator, the outlet being in fluid communication with a compartment of the aircraft; a heater positioned at the inlet side of the evaporator that heats the airflow before the airflow passes through the outlet of the evaporator; a compressor that receives the refrigerant from the output of the evaporator and pressurizes the refrigerant; and a condenser that receives the refrigerant from the compressor and condenses the refrigerant to liquid phase.