Radial vane gas throttling valve for vacuum systems

Details Radial vane gas throttling valve for vacuum systems Radial vane gas throttling valve for vacuum systems

1982-08-27

1983-07-19

Nilson, Robert G.

Fluid handling

Systems

Dividing into parallel flow paths with recombining

415160, F16K 1300

Patent

active

043938965

ABSTRACT:
A gas flow control valve wherein radially disposed vanes are mounted within an annular flange with rotationally mounted shims connecting the radial vanes to the inner peripheral surface of a flange. The shims are disposed in a rim-to-rim configuration with a groove defined in rims of the shims and a cable laid in the grooves in a serpentine pattern. By causing one of the shims to rotate by means of a sealed shaft extending through the flange, the remaining shims may be driven by the cable causing corresponding motion of the vanes. The shims are mounted to the flange by means of pins. The shims are relatively thin such that they may be hidden beneath overhanging regions on opposite side walls of the flange, exposing only the radially disposed vanes to a gas flow path. Fine and coarse control modes are achieved by allowing one of the vanes to be controlled by a shaft through the flange independent of all shims for fine mode control and another shaft driving the shims for control of the remaining vanes for coarse mode control.

REFERENCES:
patent: 2435091 (1948-01-01), Meyer
patent: 2435092 (1948-01-01), Meyer
patent: 2443263 (1948-06-01), Meyer
patent: 2606713 (1952-08-01), Bauger
patent: 2854211 (1958-09-01), Bendersky
patent: 4187879 (1980-02-01), Fermer

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