Fluid handling – Systems – Multi-way valve unit
Patent
1994-04-11
1995-04-18
Schwadron, Martin P.
Fluid handling
Systems
Multi-way valve unit
137872, 251285, 180 63, 138 40, F16K 5100
Patent
active
054069815
ABSTRACT:
The flow control for fluid circuits having dual power outlets includes a housing having an interior compartment with the compartment having an interior surface, center portion and first and second ends. The compartment has a maximum cross-sectional area at its center portion uniformly decreasing in area towards the first and second ends. First and second outlet fluid ports are located in the housing adjacent the first and second ends. A pressure fluid inlet port is located in the housing at the center portion thereof. A flow control element is mounted for longitudinal movement in the interior compartment and has an outer surface symmetrical in shape to that of the compartment, but has a smaller diameter wherein a fluid flow space exists between the outer surface of the control element and the interior surface of the compartment. A control is provided for moving the control element longitudinally in the compartment to vary the size of the space between its exterior surface and the interior surface of the compartment at opposite sides of the center portion whereby the quantity of fluid flowing from the inlet port to the first and second outlet fluid ports can be simultaneously and proportionately increased and decreased respectively.
REFERENCES:
patent: 1918596 (1933-07-01), Gill
patent: 1925109 (1933-09-01), Olson
patent: 2782801 (1957-02-01), Ludwig
patent: 3468340 (1969-09-01), Camillo
patent: 4081231 (1978-03-01), Herrington
patent: 4877057 (1989-10-01), Christensen
patent: 5189991 (1993-03-01), Humburg
Lee Kevin L.
Schwadron Martin P.
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