Thermo bulb for use with the thermostatic expansion valve

Details Thermo bulb for use with the thermostatic expansion valve Thermo bulb for use with the thermostatic expansion valve

1989-12-29

1991-09-03

Tapolcai, William E.

Automatic temperature and humidity regulation

Thermostatic

With pressure control

62225, 236 99R, G05D 2312

Patent

active

050445510

ABSTRACT:
A thermo bulb for use with a thermostatic expansion valve, includes a temperature sensing cylinder connected to a power element of a valve unit of the thermostatic expansion valve, a thermal ballast arranged in the temperature sensing cylinder and made by a ceramic sinter which has silica and alumina as its main components, an operating fluid sealed in the temperature sensing cylinder to change from gas to liquid and vice versa response to temperature sensed by the cylinder at an outlet of an evaporator of a refrigeration system, and an arrangement for fixing the thermal ballast into a certain position in the temperature sensing cylinder so as not to prevent the thermal ballast from making contact with an inner surface of the temperature sensing cylinder.

REFERENCES:
patent: 3141454 (1964-07-01), Laing
patent: 3726141 (1973-04-01), Bremer
patent: 3885126 (1975-05-01), Sugiyama et al.
patent: 4036058 (1977-07-01), Bodker
patent: 4258695 (1981-03-01), McCarton et al.
patent: 4714821 (1987-12-01), Jakobsson

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