Apparatus for adjusting operating speed of fluid-driven equipmen

Details Apparatus for adjusting operating speed of fluid-driven equipmen Apparatus for adjusting operating speed of fluid-driven equipmen

1999-06-23

2000-12-26

Fox, John

Valves and valve actuation

With material guide or restrictor

Movable or resilient guide or restrictor

91459, F16K 4700

Patent

active

061646202

ABSTRACT:
An apparatus for adjusting an operating speed of a pneumatic valve 1 by means of a solenoid valve 2 including a disk-shaped orifice block 5 having a plurality of orifices 22-25 of different aperture sizes formed therein, and the orifice block is arranged rotatably between a sub-base 3 of the solenoid valve 2 and a main block 6. By rotating the orifice block 5, any one of said plurality of orifices formed in the orifice block 5 can be selectively inserted into the fluid passage between the pneumatic valve 1 and the solenoid valve 2. The operating speed of the pneumatic valve 1 can be easily adjusted in a digital manner, and the water hammer phenomenon can be effectively prevented.

REFERENCES:
patent: 2017807 (1935-10-01), Schmitt
patent: 2644662 (1953-07-01), Powers
patent: 4469130 (1984-09-01), James et al.
patent: 4612783 (1986-09-01), Mertz
patent: 4643215 (1987-02-01), Phlipot et al.
patent: 5016673 (1991-05-01), Carter et al.

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