Pressure regulator for a pump with controlled intake flow

Details Pressure regulator for a pump with controlled intake flow Pressure regulator for a pump with controlled intake flow

1982-06-15

1984-09-11

Nilson, Robert G.

Fluid handling

Self-proportioning or correlating systems

Self-controlled branched flow systems

417295, F04B 4900

Patent

active

044704275

ABSTRACT:
A pressure regulator for a pump aspirating a working fluid from a tank comprises a throttle valve at a junction between an inlet pipe extending from the tank and an outlet pipe terminating at the intake port of the pump. The discharge port of the pump is connected to a control port of the regulator housing in line with the inlet pipe, this control port being separated by a partition with a narrow passage from a chamber containing the shiftable valve body. The passage accommodates a small-diameter rod which has a flat tail penetrating that passage only when the discharge pressure of the pump has reached a certain threshold above a point at which that pressure has caused the rod to move the valve body into a blocking position against a countervailing spring pressure. This establishes a connection between the discharge and intake ports of the pump preventing further rises in the pump's delivery pressure.

REFERENCES:
patent: 1025222 (1912-05-01), Wallace
patent: 1663647 (1928-03-01), Brush
patent: 1884852 (1932-10-01), Pool
patent: 2019723 (1935-11-01), Ochel
patent: 2916999 (1959-12-01), Christensen
patent: 3982855 (1976-09-01), Aldinger
patent: 4237926 (1980-12-01), Walker

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