Valves and valve actuation – Electrically actuated valve – Having means to produce proportional flow
Patent
1990-08-31
1994-04-12
Rosenthal, Arnold
Valves and valve actuation
Electrically actuated valve
Having means to produce proportional flow
25112917, 25112918, 335236, 335258, 335262, F16K 3106, H01F 713
Patent
active
053019210
ABSTRACT:
A rectilinear motion proportional solenoid assembly includes a cylindrical housing containing an electromagnetic coil having a longitudinal coaxial bore. The housing contains magnetic material for providing a flux path for the magnetic field produced by the coil. A generally cylindrical magnetic pole piece element is inserted into the bore and a movable armature assembly of magnetic material is supported within the bore for movement along the longitudinal axis of the coil by a pair of thin, flexible suspension springs. One of the springs is located within the bore adjacent to one end of the magnetic pole piece whereat an axial gap between the pole piece and the armature is formed. A second spring is located within the housing within the vicinity of a radial air gap between the armature and the housing. The pole piece contains an auxiliary region adjacent to the axial air gap for shunting a portion of the axially directed magnetic flux, for effectively causing the force imparted to the movable armature by the application of a current to the electromagnetic coil to be substantially constant irrespective of the magnitude of the axial gap for a variation in the axial gap over a prescribed range.
REFERENCES:
patent: 3250293 (1966-05-01), Adams et al.
patent: 3900822 (1975-08-01), Hardwick et al.
patent: 4442998 (1984-04-01), Ohyama et al.
patent: 4463332 (1984-07-01), Everett
patent: 4635683 (1987-01-01), Nielsen
patent: 4767097 (1988-08-01), Everett et al.
Puritan-Bennett Corp.
Rosenthal Arnold
Wands Charles E.
LandOfFree
Proportional electropneumatic solenoid-controlled valve does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Proportional electropneumatic solenoid-controlled valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Proportional electropneumatic solenoid-controlled valve will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2093831