Control methods for electromagnetic valve actuators

Details Control methods for electromagnetic valve actuators Control methods for electromagnetic valve actuators

2005-01-18

2005-01-18

Knight, Anthony (Department: 2121)

Data processing: generic control systems or specific application

Specific application, apparatus or process

Electrical power generation or distribution system

C700S282000, C700S275000, C361S160000, C361S152000, C361S154000, C361S210000, C361S187000, C361S206000, C361S194000

Reexamination Certificate

active

06845300

ABSTRACT:
An electromagnetically operated valve assembly (28) has a first solenoid (58) and a second solenoid (60). An armature (56) having a valve stem (54) coupled thereto is positioned between the first solenoid (58) and second solenoid (60). A controller (12) is coupled to the first solenoid (58), the second solenoid (60). A current sensor (49) is coupled to the first solenoid and generated a signal corresponding to the induced current in the first solenoid. The controller (12) changes a voltage applied to the first solenoid from a first polarity to a second polarity. The controller (12) is further configured to hold the voltage at the second polarity for a predetermined time period and a predetermined amplitude to decrease the induced current. The predetermined time period or the predetermined amplitude is determined based on the first signal.

REFERENCES:
patent: 4453652 (1984-06-01), Merkel et al.
patent: 5074259 (1991-12-01), Pusic
patent: 5119772 (1992-06-01), Kawamura
patent: 5293551 (1994-03-01), Perkins et al.
patent: 5592905 (1997-01-01), Born
patent: 5650909 (1997-07-01), Remele et al.
patent: 5748433 (1998-05-01), Schrey et al.
patent: 6166896 (2000-12-01), Schmitz
patent: 6209513 (2001-04-01), Sakasai et al.
patent: 6249418 (2001-06-01), Bergstrom
patent: 6494187 (2002-12-01), Giavi et al.
patent: 6565064 (2003-05-01), Smith et al.

Affiliated with

Also associated with

Rating

Control methods for electromagnetic valve actuators does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Control methods for electromagnetic valve actuators, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control methods for electromagnetic valve actuators will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3412950