Method and device for providing fluid resistance within a flow p

Details Method and device for providing fluid resistance within a flow p Method and device for providing fluid resistance within a flow p

1994-03-31

1996-04-30

Scherbel, David

Pipes and tubular conduits

With flow regulators and/or baffles

Restrictors

138 41, 138 45, F15D 102

Patent

active

055115853

ABSTRACT:
A method for providing resistance to flow through a flow passageway comprises partially blocking flow through an orifice of reduced diameter by masking the orifice with an element formed of porous material retained immediately adjacent to every side of the orifice that is expected to be exposed to higher pressure fluid with a greater surface area of the porous masking element being exposed to fluid in the passageway on the higher pressure side of the orifice than is exposed by the orifice to the lower pressure fluid. The orifice may be formed by direct configuration of the passageway walls or by a body adapted to retain the masking element in the body, the outside of the body being adapted to for secure installation within the flow passageway. Resistors in accordance with the present method may have masking elements on one side for use with one directional pressure differentials or masking elements on both sides for use in applications in which bidirectional pressure differentials are anticipated.

REFERENCES:
patent: 1883720 (1932-10-01), Grimes
patent: 2288715 (1942-07-01), Karrer et al.
patent: 3109459 (1963-11-01), Lee, II et al.
patent: 3537543 (1970-11-01), Gilbel
patent: 3702144 (1972-11-01), Loveland
patent: 3724502 (1973-04-01), Hayner et al.
patent: 4171209 (1979-10-01), Brown
patent: 4874017 (1989-10-01), Hendrickson
patent: 5123452 (1992-06-01), LeBlanc
patent: 5209265 (1993-05-01), Taguri et al.

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