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US 4,000,757 AGranted
High gain fluid amplifier
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorPeter A. Freeman
Life of this patent
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Abstract
A bistable fluidic amplifier having high gain is disclosed. Power fluid is upplied through an inlet port and lobe-shaped feedback cavities downstream provide an oscillating differential pressure or flow between a pair of outlets. A pair of opposed control ports are provided between the inlet port and the feedback cavities and a differential control pressure or flow applied to the control ports creates a differential outlet pressure or flow having a gain in the range of 10-15.
Claims2
A high gain fluid amplifier comprising,
- an inlet for supplying power fluid,
- a centrally located output vent,
- a pair of differential flow outlets disposed one each on each side of said output vent,
- a pair of opposed lobe-shaped feedback cavities positioned between said inlet and said outlets for alternately switching fluid to said differential flow outlets,
- a pair of opposed lobe-shaped control cavities,
- a pair of control inlets connected one each into said opposed lobe-shaped control cavities for supplying control fluid for controlling movement of power fluid into said output vent and said differential flow outlets, and
- short angularly disposed sidewalls positioned between said control cavities and said feedback cavities.
4 more elements
Dependencies are inferred from the claim text.