System and method for controlling a solenoid valve,...

Details System and method for controlling a solenoid valve,... System and method for controlling a solenoid valve,...

2011-02-01

2011-02-01

Fristoe, Jr., John K (Department: 3753)

Valves and valve actuation

Electrically actuated valve

With means to bias valve open

C251S077000

Reexamination Certificate

active

07878480

ABSTRACT:
A solenoid valve, particularly of the type to be used for controlling a hydraulic system for variable actuation of the valves of an internal-combustion engine, has a valve element co-operating with a valve seat and a pusher element, separate from the valve element, which is pushed against the valve element by the movable core of the solenoid valve when the solenoid of the solenoid valve is energized in order to bring the valve element into contact with the valve seat. After de-energization of the solenoid, the time necessary for bringing back the pusher element into the resting condition in contact with the valve element is reduced thanks to the application of a braking current to the solenoid of the solenoid valve during the stage in which the movable core and the pusher element associated thereto displace in the direction opposite to the direction of the movement generated by the magnetic field of the solenoid, following upon de-energization of the solenoid valve.

REFERENCES:
patent: 3829060 (1974-08-01), von Lewis
patent: 5167442 (1992-12-01), Alaze et al.
patent: 5725289 (1998-03-01), Mueller et al.
patent: 6453930 (2002-09-01), Linkner et al.
patent: 6655328 (2003-12-01), Kather
patent: 2 208 183 (1973-08-01), None
patent: 102 35 196 (2004-02-01), None
patent: 10 2006 043 677 (2007-06-01), None
patent: 0 803 642 (1997-10-01), None
patent: 1 726 790 (2006-11-01), None
European Search Report for EP 07 42 5445 completed Dec. 21, 2007.

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