Automatic temperature and humidity regulation – Thermostatic – With pressure control
Patent
1996-03-21
1997-07-01
Tapolcai, William E.
Automatic temperature and humidity regulation
Thermostatic
With pressure control
62225, F25B 4104
Patent
active
056428588
ABSTRACT:
According to the present invention, a thermal expansion valve for a refrigerating cycle includes a housing having a throttle passage therein for expanding the refrigerant thereinto from the high-pressure side liquid refrigerant circuit, a valve element provided within the housing for adjusting opening degree of the throttle passage, and a thermosensitive element movably disposed within the housing. The thermosensitive element includes a case and a pressure responding member disposed within the case and displacing according to temperature and pressure of the refrigerant at the exit of an evaporator. The case of the thermosensitive element is integrally connected to the valve element, and the thermosensitive element and the valve element are so constructed as to integrally move according to the displacement of the pressure responding member. Accordingly, even if the valve element vibrates due to the sharp expansion of the refrigerant and the vibration transmits to the thermosensitive element case, as the thermosensitive element case is movable with respect to the housing and the housing are separated from the thermosensitive case, most of the vibration is prevented from being transmitted to the housing.
REFERENCES:
patent: 2272250 (1942-02-01), Persons
patent: 2701688 (1955-02-01), Dillman
patent: 4344566 (1982-08-01), Gotzenberger
patent: 4819443 (1989-04-01), Watanabe et al.
patent: 5127237 (1992-07-01), Sendo et al.
Fujiwara Ken-ichi
Kakehashi Nobuharu
Kishita Hiroshi
Tomatsu Yoshitaka
Yamanaka Yasushi
Nippondenso Co. Ltd.
Tapolcai William E.
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