Pressure regulator and flow control valve with pre-exhaust

Details Pressure regulator and flow control valve with pre-exhaust Pressure regulator and flow control valve with pre-exhaust

1979-08-31

1981-07-21

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Bi-directional flow valves

91443, 13750518, 137529, G05D 701, G05D 1610

Patent

active

042792711

ABSTRACT:
A combination pressure regulating and flow control valve having an upstream port and a downstream port interconnected by a flow passage. An adjustable pressure regulating valve is mounted in said flow passage for regulating the downstream pressure in said flow passage. The adjustable flow control valve is mounted in parallel with said pressure regulating valve in said flow passage for providing a meter out action on pressurized air flowing through said passage from said downstream port to said upstream port. The adjustable fluid flow control valve is shown in one embodiment as being provided with an adjustable quick exhaust valve structure for quickly dumping the exhausting air to reduce the pressure thereof to a reduced predetermined level, after which the meter out action follows.

REFERENCES:
patent: 1984792 (1934-12-01), Ford
patent: 2341709 (1944-02-01), Friedell
patent: 4022113 (1977-05-01), Blatt
patent: 4147179 (1979-04-01), Miura
patent: 4175473 (1979-11-01), Iizumi
patent: 4177840 (1979-12-01), Neff et al.
patent: 4192346 (1980-03-01), Iizumi

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