Outlet pressure control system for electromagnetic reciprocating

Details Outlet pressure control system for electromagnetic reciprocating Outlet pressure control system for electromagnetic reciprocating

1990-04-25

1992-04-21

Bertsch, Richard A.

Pumps

Condition responsive control of pump drive motor

By control of electric or magnetic drive motor

417417, F04B 4908

Patent

active

051062674

ABSTRACT:
An electromagnetic reciprocating pump comprises a pressure sensor for detecting the actual outlet pressure of the electromagnetic reciprocating pump, and the strokes of the electromagnetic drive means and the compressor piston connected to the electromagnetic drive means varies are feedback controlled by the deviation from the present outlet pressure of the actual outlet pressure detected by the pressure sensor. The stroke of the electromagnetic drive means is controlled by adjusting the average magnitude of the half-wave AC current supplied to the electromagnetic drive means.

REFERENCES:
patent: 3542495 (1970-11-01), Barthalon
patent: 3966358 (1976-06-01), Heimes et al.
patent: 4353220 (1982-10-01), Curwen et al.
patent: 4454456 (1984-06-01), Hauser
patent: 4575313 (1986-03-01), Rao et al.
patent: 4692673 (1987-09-01), DeLong
patent: 4706470 (1987-11-01), Akazawa et al.
patent: 4787823 (1988-11-01), Hultman
patent: 4884954 (1989-12-01), Van Niekerk
patent: 4965864 (1990-10-01), Roth et al.

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