Rotary sight flow indicator

Details Rotary sight flow indicator Rotary sight flow indicator

1987-01-12

1988-05-24

Cuchlinski, Jr., William A.

Signals and indicators

Indicators

Fluid flow

116273, 116276, G01F 1500

Patent

active

047458771

ABSTRACT:
A rotary sight flow indicator which provides a visual indication of fluid flow and of the flow direction by the rotation of a shrouded cross-flow rotor. The sight flow indicator consists of a housing with a cavity containing the rotor and its shroud, and at least one view window by means of which the fluid inside the housing and the motion of the rotor can be observed. The rotor comprises a number of radial blades attached to a rotatable shaft placed substantially normal to the flow direction. A stationary shroud is positioned around a section of the circumference of the blades which shields the rotor blades from flow impingement during a portion of rotation. The asymmetric flow impingement on the rotor blades so created causes an unbalanced torque and consequently causes the rotor to turn.

REFERENCES:
patent: 128324 (1872-06-01), Pierce
patent: 1385717 (1921-07-01), Sams
patent: 2097535 (1937-11-01), Rugel et al.
patent: 3015300 (1962-01-01), Tarbox
patent: 3185128 (1965-05-01), Moore et al.
patent: 4399695 (1983-08-01), Peyton

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