Electromagnetically driven valve

Details Electromagnetically driven valve Electromagnetically driven valve

2007-12-11

2007-12-11

Bastianelli, John (Department: 3753)

Valves and valve actuation

Electrically actuated valve

Solenoid having plural coils

C251S129200, C123S090110, C335S268000, C335S276000, C361S159000, C361S160000

Reexamination Certificate

active

11442338

ABSTRACT:
The electromagnet includes a valve-opening side coil portion supplied with a current to thereby generate a first magnetic flux and generate electromagnetic force in a direction moving the valve-opening side moving element toward a valve-opening position, and a valve-closing side coil portion supplied with a current to thereby generate a second magnetic flux and generate electromagnetic force in a direction moving the valve-closing side moving element toward the valve-closing position. The valve-opening side coil portion and the valve-closing side coil portion are constituted of an identical connection. The electromagnet further has a sub-coil constituted of a separate connection from the valve-opening side coil portion and the valve-closing side coil portion. By the current supply to the sub-coil, a third magnetic flux reducing at least one of the first magnetic flux and the second magnetic flux is generated.

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