Variable flow orifice valve assembly

Details Variable flow orifice valve assembly Variable flow orifice valve assembly

1996-02-06

1999-05-11

Brinson, Patrick F.

Pipes and tubular conduits

With flow regulators and/or baffles

Restrictors

138 46, 137504, F15D55/00

Patent

active

059017503

ABSTRACT:
A valve assembly is shown having a valving member situated generally in the path of flow of a fluid which varies in pressure and urges the valving member in generally the same direction as the flow of the fluid; a spring is shown resiliently resisting the movement of the valving member by the flow of fluid; as the valving member is urged in the direction of the flow of the fluid the valving member reduces the effective flow area of the valve assembly through which area the fluid is to flow; the valve assembly features low hysteresis, resistance to plugging by debris in system, is flow sensitive activating at higher pressure differential as flow is increased and it may incorporate a fail safe feature reopening in case of spring failure; flow noise attenuation is also a feature.

REFERENCES:
patent: 3431944 (1969-03-01), Sakuma
patent: 3805824 (1974-04-01), Robbins, Jr.
patent: 4009592 (1977-03-01), Boerger
patent: 4075294 (1978-02-01), Saito et al.
patent: 4375228 (1983-03-01), Widdowson
patent: 4412432 (1983-11-01), Brendel
patent: 4437493 (1984-03-01), Okuda et al.
patent: 4951478 (1990-08-01), McDonald
patent: 5081847 (1992-01-01), Anderson, Jr.
patent: 5170638 (1992-12-01), Koenig et al.

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