| 主权项 |
1. A temperature control system employing a two-phase refrigerant and a compressor/condenser loop having an input and output for circulating refrigerant at a controllable temperature to and from a load evaporator having input and output terminals and a known thermal capacity, the temperature control system including a subsidiary flow circuit for enhancing the performance of the system, comprising:
a subsidiary heat exchanger coupled between the flow from the output of the compressor/condenser loop to the load evaporator input, said subsidiary heat exchanger having a first flow path including an input receiving flow from the compressor/condenser loop and an output therefrom coupled to the evaporator input, the subsidiary heat exchanger also including a second flow path in parallel thermal exchange relation along the length of the first flow path, and an output from the subsidiary heat exchanger coupled to the compressor input, the system further includes a thermo-expansion valve disposed in the first flow path between the subsidiary heat exchanger and the input to the load evaporator, a fluid sensing device at the exit to the thermo-expansion valve for sensing flow through the thermo-expansion valve, a capacitor for collecting condensed fluid upstream of the thermo-expansive valve, and wherein refrigerant condenses within the load until the thermo-expansion valve simultaneously allows refrigerant flow through the thermo-expansion valve and regulates a temperature of the refrigerant in its two phase state ahead of the thermo-expansion valve, and wherein a flow through the thermo-expansion valve occurs only after a pressure and temperature upstream of the thermo-expansion valve reaches a final temperature and pressure. |
