Fluid handling – Line condition change responsive valves – Pilot or servo controlled
Patent
1999-05-20
2000-11-14
Huson, Gregory L.
Fluid handling
Line condition change responsive valves
Pilot or servo controlled
137 14, 13711806, F16K 31128
Patent
active
061455350
ABSTRACT:
A priority valve for a compressed air system in a tire retreading plant includes a solenoid controlled, diaphragm operated valve connected at an inlet to an autoclave. A solenoid controls whether the valve is opened or closed. A switch has a pressure sensor connected to an inlet side. If the pressure falls below a low pressure limit, the switch activates the solenoid to close the valve, thus shutting off the air supply to the autoclave. With the inlet to the autoclave closed, the air compressor is able relatively quickly and easily to raise the pressure in the system above the low pressure limit. The valve remains closed until the sensed pressure rises to a value sufficient to supply both the other equipment and the autoclave.
REFERENCES:
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Csontos Alan A.
Farrell Martin
Huson Gregory L.
Krishnamurthy Ramesh
Michelin Recherche ET Technique S.A.
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