Latching solenoid valve

Details Latching solenoid valve Latching solenoid valve

1997-10-27

1999-06-29

Lee, Kevin

Valves and valve actuation

Fluid actuated or retarded

Pilot or servo type motor

251 45, 251 65, F16K 3108

Patent

active

059156651

ABSTRACT:
A pilot valve is operated by a solenoid formed by a coil wound around a non-magnetic spool that has a bore. A rare earth permanent magnet is inside the bore adjacent one end and abuts a flux concentrator farther inside the bore. A plunger is slidably located within the bore biased away from the flux concentrator by a spring and projects out another end of the bore. An enclosure of magnetic material completes a magnetic flux path around the solenoid and has an aperture though which the plunger projects. The pilot valve includes a cage of rigid non-magnetic material which abuts the enclosure and has a recess which supports the plunger out of contact with the housing. The plunger selectively opens and closes a pilot tube through the cage to operate a diaphragm the responds by engaging a primary valve seat to control the flow of fluid through a valve body.

REFERENCES:
patent: 3814376 (1974-06-01), Reinicke
patent: 4056255 (1977-11-01), Lace
patent: 4534537 (1985-08-01), Zukausky
patent: 4690371 (1987-09-01), Bosley et al.
patent: 4948090 (1990-08-01), Chen
patent: 4972996 (1990-11-01), Cerny
patent: 5010911 (1991-04-01), Grant
patent: 5449142 (1995-09-01), Banick
patent: 5584465 (1996-12-01), Ochsenreiter
patent: 5758863 (1998-06-01), Buffet et al.

Affiliated with

Also associated with

Rating

Latching solenoid 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 Latching solenoid valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Latching solenoid valve will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1368600