Fluid handling – Flow affected by fluid contact – energy field or coanda effect – Utilizing diverse fluids
Patent
1977-05-04
1979-01-02
Croyle, Carlton R.
Fluid handling
Flow affected by fluid contact, energy field or coanda effect
Utilizing diverse fluids
137810, 137216, 137604, 123119A, 123119B, 123119D, 123 25E, F15C 116
Patent
active
041322479
ABSTRACT:
A fluid mixing apparatus introduces a controlled amount of gas into a liquid flowing through a conduit.
The fluid mixing apparatus incorporates a flow control device which is constructed to produce a variable impedance to fluid flow through the control device. The impedance varies in a pre-planned relationship to the pressure differential across the flow control device and to an acceleration of the flow within the control device.
The control device has an outlet connected to the interior of the liquid carrying conduit and has a gas inlet for supplying the gas to the interior of the control device.
In a specific embodiment, the flow control device is a vortex chamber which produces rotation of the gas flowing through the gas inlet. This rotation produces a self-choking effect on the gas flowing from the inlet to the outlet. A varying ratio of air to liquid is produced in the liquid conduit downstream of the connection to said outlet with changes in the pressure differential across the control device, and the amount of liquid in relation to the amount of air increases greatly with relatively small increases in the pressure differential across the control device.
REFERENCES:
patent: 1517598 (1924-12-01), Stevenson
patent: 2155520 (1939-04-01), Wolff
patent: 3578016 (1971-05-01), Kushner
patent: 3888556 (1975-06-01), Strong et al.
Croyle Carlton R.
Owen, Wickersham & Erickson
Smith Leonard E.
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