Orifice valve assembly

Details Orifice valve assembly Orifice valve assembly

1991-04-26

1992-04-28

Rosenthal, Arnold

Valves and valve actuation

With selective flow regulation

Rotary

251120, 251312, F16K 510

Patent

active

051080753

ABSTRACT:
An orifice valve assembly which may be utilized to control the flow of a fluent material, such as powdered magnesium, propelled by gas under pressure, the valve controlling the flow in a linear manner.
The valve includes a valve body having first and second adjacent concentric bores, the first bore being of a larger diameter than the second bore, and a cross-bore intersecting the first bore, the cross-bore having a cylindrical portion which intersects the first bore and frusto-conical inlet and outlet portions to either side of the cylindrical portion. A rotatable valve body is mounted within the first and second bores, the valve body having cylindrical first and second portions of a diameter just slightly less than the first and second bores of the cylindrical body, the first bore being provided with a circumferential groove which has a rounded bottom surface of a radius equal to the radius of the intersecting cylindrical portion, and which is of a crescent-shaped cross-section when viewed in a section transverse to the axis of the cylindrical body. Means are provided to rotate the valve core within the valve body.

REFERENCES:
patent: 2067346 (1937-01-01), Rovinsky
patent: 4262689 (1981-04-01), Rodder
patent: 4934604 (1990-06-01), Oskamp

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