Method of energizing an electromagnetically operable control val

Details Method of energizing an electromagnetically operable control val Method of energizing an electromagnetically operable control val

1995-11-09

1999-07-20

Lee, Kevin

Fluid handling

Processes

25112901, 361154, F16K 3102

Patent

active

059244356

ABSTRACT:
A method of energizing an electromagnetically operable valve which comprises a valve member movable into engagement with a seating when a winding is energized comprising connecting the winding to a DC supply to achieve a rapid rate of rise of current. The current is controlled at the peak value and is then reduced to a low value after an initial movement of the valve member. The valve member continues its movement towards the seating and the current is restored prior to engagement of the valve member with the seating to substantially eliminate bouncing of the valve member away from the seating.

REFERENCES:
patent: 4520420 (1985-05-01), Hiromi et al.
patent: 4726389 (1988-02-01), Minoura et al.
patent: 4922878 (1990-05-01), Shinogle et al.
patent: 5277163 (1994-01-01), Ohishi
patent: 5551480 (1996-09-01), Tomatsu et al.

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