Variable flow pump

Details Variable flow pump Variable flow pump

1988-10-17

1990-03-13

Smith, Leonard E.

Pumps

Successive stages

With interstage discharge or additional discharge from...

417295, F04B 100

Patent

active

049079492

ABSTRACT:
Variable flow pump comprising at least a piston (1) associated with a chamber (2), said piston (1) cooperating with a surface (3) driven in a constant displacement reciprocating movement, characterized in that the piston (1) is free of any continuous mechanical connection with said surface (3); and wherein said chamber (2) is associated with a flow regulating system (9) placed upstream, and wherein it is equipped with a clack valve (7) on the feed and with a clack valve (8) on the delivery; said regulating system (9) being fed by a booster pump (10).

REFERENCES:
patent: 1948047 (1934-02-01), Retel
patent: 2653543 (1953-09-01), Mott
patent: 2841085 (1958-07-01), Evans
patent: 3059579 (1962-10-01), Bessiere
patent: 3709639 (1973-01-01), Suda et al.
patent: 4208871 (1980-06-01), Riple, Jr.
patent: 4282843 (1981-08-01), Seilly et al.

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