Fluid handling – Self-proportioning or correlating systems – Self-controlled branched flow systems
Patent
1988-05-16
1989-09-12
Hepperle, Stephen
Fluid handling
Self-proportioning or correlating systems
Self-controlled branched flow systems
137117, 417299, 417300, F16K 1734
Patent
active
048650684
ABSTRACT:
A self contained mechanical bleed control apparatus for a fluid conveying system, such as a central vacuum system or a pressurized air system, includes a slide member housing which slidably supports an orifice plate having an air foil on one end disposed within a main flow conduit just upstream from a vacuum producer or downstream from the compressor in a pressurized fluid system. A source of bleed fluid communicates with the slide member housing and is valved by movement of the orifice plate. The orifice plate is biased to a position for communication of bleed fluid into the main conduit under low flow conditions. Increased flow through the main conduit acts on the air foil to slide the orifice plate against the urging of the biasing force to cut off the bleed fluid supply.
REFERENCES:
patent: 430160 (1890-06-01), Williams
patent: 995057 (1911-06-01), Cowles
patent: 2152695 (1939-04-01), Hornschuch
patent: 2982514 (1961-05-01), Bryant
patent: 3685530 (1972-08-01), Bailey
patent: 3763891 (1973-10-01), Stiltner
Beehner John A.
Hepperle Stephen
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