Fluid handling – Flow affected by fluid contact – energy field or coanda effect – Means to regulate or vary operation of device
Patent
1992-04-27
1993-03-23
Chambers, A. Michael
Fluid handling
Flow affected by fluid contact, energy field or coanda effect
Means to regulate or vary operation of device
137835, 137840, 91308, F15C 304
Patent
active
051955601
ABSTRACT:
A hydrofluidic oscillator including a momentum exchange fluidic amplifier coupled to a four-way reciprocal valve. The four-way valve is connected to control flow of hydraulic fluid from a source thereof to a using apparatus. The fluidic amplifier is connected to provide input signals to the four-way valve to cause the four-way valve to reciprocate responsive to the input signals. Both negative and positive feedback paths are provided from each outlet of the fluidic amplifier to the respective control ports to control oscillation of the four-way valve.
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