Valve for a system having an energy-carrying medium

Details Valve for a system having an energy-carrying medium Valve for a system having an energy-carrying medium

1997-03-21

1999-08-03

Tapolcai, William E.

Automatic temperature and humidity regulation

Heating radiator

Thermostatic

13750538, 13761417, 236 92R, 251902, G05D 2700

Patent

active

059313757

ABSTRACT:
Energy exchanger valve (8) with thermostat valve (12), a housing (9) with inlet (20) and outlet (21), a thermostat bellows displaceable spindle (30) with seal (42) which, by the expansion/contraction of the thermostat bellows and against the pressure of a surrounding spring (31) can close/open an opening (27) with a seating (27a) in a transverse wall (24) between the inlet (20) and the outlet (21), and a piston (13) controlled by differential pressure for the control of a medium's differential pressure across a pre-setting (11) and a thermostat valve (12) consisting of the seating (27a) and the seal (42) between the inlet (20) and the piston (13), the thermostat valve (12) being able to cut off the flow between the inlet and the outlet independently of the pre-setting (11). With the valve (8), only a predetermined maximum amount of the energy-carrying medium flows through the energy exchangers (5). If the differential pressure is increased when the valves on a pipe length are closed, the flow in the individual energy exchangers (5) is not increased.

REFERENCES:
patent: 2733865 (1956-02-01), Ehlke
patent: 3838812 (1974-10-01), Johnson
patent: 4508262 (1985-04-01), Pedersen et al.
patent: 5178324 (1993-01-01), Moesby
patent: 5213132 (1993-05-01), Comment

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