Invention Grant
- Patent Title: Refrigeration valve
- Patent Title (中): 制冷阀
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Application No.: US27667672Application Date: 1972-07-31
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Publication No.: US3810366APublication Date: 1974-05-14
- Inventor: ORTH C
- Applicant: CONTROLS CO OF AMERICA
- Assignee: Controls Co of America
- Current Assignee: Controls Co of America
- Priority: US27667672 1972-07-31
- Main IPC: F25B1/00
- IPC: F25B1/00 ; F25B41/04 ; F25B41/06 ; F25B43/00
Abstract:
Each of the valves shown has parallel flow paths through the body with an expansion valve in the line leading to the evaporator thermostatically controlled by conditions in the return line. A second valve is positioned in the return line and controlled in response to a condition (temperature or pressure) which is indicative of conditions (temperature and pressure) in the evaporator. This arrangement prevents evaporator freezing. The valves are suited for flange fitting by reason of having all ports parallel enabling the valve to be secured to the evaporator (on one side) and to the compressor suction line and the condenser outlet on the other side. Since the thermostatic expansion valve can be ''''externally equalized'''' internally and all control functions are incorporated in the single body, the number of connections to be made by the system assembler are minimized. One version is provided with a receiver-drier which can be changed without disturbing other system connections.
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