Pressure regulator

Details Pressure regulator Pressure regulator

1988-03-10

1989-04-18

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Pilot or servo controlled

12820426, 13750538, G05D 606

Patent

active

048217670

ABSTRACT:
A pressure regulator comprises a housing (1) defining first and second chambers separated by a movable partition (4,5), the first chamber being provided with an inlet port (2) facing towards and sealingly closeable by a rigid central portion (5) of the partition at a position remote from its centroid and an outlet port (3), and the second chamber being vented (7) to a reference pressure, the regulator including means (8) extending between the housing and the central portion (5) of the partition to define a pivot axis for the partition extending between its centroid and the position of the inlet port (2). The partition (4,5) may be a tilting diaphragm or a piston (D) with a peripheral sealing element (S). The pivot axis for the partition may be defined by a fixed pivot pin (20), or by projections (8) extending across the first chamber to abut the partition (4,5). A two-stage device is also described in which the tilting partition (35) controls a pilot jet (32) which in turn controls a valve member (43) adapted to permit or deny access from a supply port (44) to an outlet port (33).

REFERENCES:
patent: 3285261 (1966-11-01), Chaney
patent: 3752175 (1973-08-01), Hamilton
patent: 3900045 (1975-08-01), Murrell
patent: 4334532 (1982-06-01), Jackson
patent: 4454893 (1984-06-01), Orchard
patent: 4630641 (1986-12-01), Lacour
patent: 4667670 (1987-05-01), Feathers

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