Automatic temperature and humidity regulation – Thermostatic – With pressure control
Patent
1980-05-29
1982-08-17
Tapolcai, Jr., William E.
Automatic temperature and humidity regulation
Thermostatic
With pressure control
62225, F25B 4104
Patent
active
043445667
ABSTRACT:
A thermostatic expansion valve assembly, particularly for a refrigerant cycle which includes a compressor, a condensor and an evaporator, operates in response to suction gas of the cycle and the valve assembly includes a housing defining a suction line for passage of the suction gas through the valve assembly. A valve tappet is acted upon by the suction gas for actuation of the valve assembly and a control member responsive to pressure and temperature receives the upper end of the valve tappet, with the suction gas acting on the valve tappet through the control member. The control member is formed in a cup-shaped configuration opening toward the suction line and includes a rim region projecting into the suction line and a circumferential region having a greater wall thickness than the rim region. An annular shoulder is formed on the control member and a cover plate is provided for the valve housing. The assembly includes a corrugated tube which surrounds the circumferential region of the control member and which has one end connected to the annular shoulder of the control member and another end connected to the cover plate.
REFERENCES:
patent: 1904991 (1933-04-01), Candor
patent: 1969574 (1934-08-01), Newell
patent: 2463951 (1949-03-01), Carter
patent: 3014351 (1961-12-01), Leimbach
patent: 3111816 (1963-11-01), Tilney et al.
patent: 3119559 (1964-01-01), Heidorn
Ernst Flitsch GmbH & Co.
Tapolcai, Jr. William E.
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