Servo positioning system

Details Servo positioning system Servo positioning system

1997-01-21

1998-08-04

Michalsky, Gerald A.

Fluid handling

Processes

137554, 13762565, 251 65, 25112904, 25112908, 2511291, 318653, F15B 13044, F16K 3108

Patent

active

057879150

ABSTRACT:
A valve positioning system according to the present invention includes a force motor which responds to a command signal corresponding to a desired valve flow rate by energizing magnetic coils with a current to produce a flux force which moves the valve. Preferably two Hall effect sensors sense the actual position and provide a feedback signal to a control loop which compares the sensed position with the commanded position. The valve is positioned by adjusting the energizing current provided to the magnetic coils. The system optionally includes circuitry to compensate for the error in the actual position relative to the commanded position produced by changes in current in the magnetic coils.

REFERENCES:
patent: 3723871 (1973-03-01), Runyan et al.
patent: 3835888 (1974-09-01), Leutner et al.
patent: 4251762 (1981-02-01), Williams
patent: 4359677 (1982-11-01), Dennon
patent: 4585029 (1986-04-01), Harding
patent: 4605197 (1986-08-01), Casey et al.
patent: 4656400 (1987-04-01), Pailthorp et al.
patent: 4659969 (1987-04-01), Stupak
patent: 4665348 (1987-05-01), Stupak
patent: 4809742 (1989-03-01), Grau
patent: 4825904 (1989-05-01), Grau et al.
patent: 4842162 (1989-06-01), Merkel
patent: 4907615 (1990-03-01), Meyer et al.
patent: 4953590 (1990-09-01), Kakinuma et al.
patent: 5091665 (1992-02-01), Kelly
patent: 5244002 (1993-09-01), Frderick
patent: 5249603 (1993-10-01), Byers
patent: 5257014 (1993-10-01), Zimmermann
patent: 5320123 (1994-06-01), Corso et al.
Denison--Hydraulics, Proportional Directional Valves, pp. 1-2, 1993.

Affiliated with

Also associated with

Rating

Servo positioning system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Servo positioning system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Servo positioning system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1167403