Fluid handling – Self-proportioning or correlating systems – Self-controlled branched flow systems
Patent
1994-10-17
1996-03-26
Nilson, Robert G.
Fluid handling
Self-proportioning or correlating systems
Self-controlled branched flow systems
60 39281, G05D 701
Patent
active
055012450
ABSTRACT:
A pressurized fluid flow regulator for controlling fluid in a fluid circuit is disclosed having a high pressure feed chamber in fluid communication with a source of pressurized fluid and with an exhaust chamber which, in turn, has a fluid outlet connected to the device to receive the pressurized fluid. A first valve controls the flow of fluid between the high pressure feed chamber and the exhaust chamber, while a second valve opens and closes the fluid outlet of the exhaust chamber. The regulator also includes a bypass chamber having an inlet in fluid communication with the high pressure feed chamber and an outlet in communication with the inlet of the source of pressurized fluid. A valve system controls the opening and closing of the bypass chamber inlet such that the inlet is opened when the fluid pressure in the high pressure feed chamber exceeds a threshold value so as to avoid over pressurization of the fluid in the system. The first valve has a valve member slidably located in a valve body of the flow regulator so as to slide along an axis of movement, such relative movement between the first valve member and a cylindrical valve opening serving to regulate the fluid flow between the high pressure feed chamber and the exhaust chamber. The first valve member has a valve surface which extends obliquely to its axis of movement such that such axial movement varies the cross-sectional area of the opening connecting the high pressure feed chamber and the exhaust chamber to thereby regulate the fluid flow between these chambers.
REFERENCES:
patent: 2957488 (1960-10-01), Farkas
patent: 3901263 (1975-08-01), Grunert
patent: 4578945 (1986-04-01), Peck
patent: 4716723 (1988-01-01), Ralston et al.
patent: 4817375 (1989-04-01), Brocard et al.
Nilson Robert G.
Societe Nationale d'Etude et de Construction de Moteurs d'Aviati
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