Fluid handling – Line condition change responsive valves – With separate connected fluid reactor surface
Patent
1995-12-21
1997-03-25
Michalsky, Gerald A.
Fluid handling
Line condition change responsive valves
With separate connected fluid reactor surface
137554, 137557, F16K 1706, F16K 3700
Patent
active
056135165
ABSTRACT:
A combination hydraulic pressure regulator and pressure switch includes a housing having an interior chamber connecting an inlet port to an outlet port. A seating device is movably received in the interior chamber and has a seat surrounding an opening. The opening is in communication with the outlet port. A poppet is movable in the interior chamber. An adjustment spring normally urges the poppet into engagement with the seat to close the opening, the poppet being movable in a direction away from the seat in response to hydraulic pressure in the interior chamber sufficient to overcome the force of the adjustment spring. A limit switch is mounted to the body. A switch actuator is associated with the poppet for actuating the limit switch in response to movement of the poppet in a direction away from the seat. The seating device is hydraulically balanced in the chamber so that the seat remains engaged with the poppet until a select pressure is exceeded in the interior chamber, thereafter resulting in hydraulic flow from the inlet port to the outlet port.
REFERENCES:
patent: 5551475 (1996-09-01), Nelson et al.
Michalsky Gerald A.
Power Team Division of SPX Corporation
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