Instant-on valve construction for high pressure gas

Fluid handling – Processes

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

251 3002, 251 3004, 251 38, F16K 3112

Patent

active

057620873

ABSTRACT:
A valve construction for high pressure gases, allowing rapid opening and closing, includes a main body with inlet and outlet passages, and a guide sleeve having a primary and a secondary piston slidably mounted within the sleeve, the primary piston being adjacent a closure at one end of the sleeve, and the secondary piston being at the end of the primary piston which is remote from the closure. The secondary piston supports a seal for closing the gas outlet passage when the secondary piston is remote from the closure. The secondary piston has an axial passage with an elongate member movable therein, the elongate member being fixed to the primary piston. A valve means is provided between the axial passage and the elongate member, the valve means being open when the bleed orifice is closed. A peripheral seal between the secondary piston and the sleeve acts to restrain the axial movement of gas. An access passage connects the periphery of the secondary piston with a location on the axial passage, while a passageway in the secondary piston connects the region between the first and second pistons with the bleed orifice chamber. An electrical coil acts to generate a magnetic field. The valve construction thus defined is in equilibrium when the coil is de-energized, the seal means closing the gas outlet passage, the closure portion closing the bleed orifice, and the primary piston being furthest remote from the closure. When the coil is energized, the primary piston moves toward the closure until the valve means closes, lifting the closure portion off the bleed orifice and permitting gas to escape from around the primary piston, through said passageway, and out the bleed orifice, thus resulting in an increase in the pressure differential across the peripheral seal.

REFERENCES:
patent: 3405906 (1968-10-01), Keller
patent: 4304264 (1981-12-01), McClintock et al.
patent: 4526340 (1985-07-01), Kolchinsky et al.
patent: 4679765 (1987-07-01), Kramer et al.
patent: 4699351 (1987-10-01), Wells
patent: 5301920 (1994-04-01), Ichiki

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Instant-on valve construction for high pressure gas does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Instant-on valve construction for high pressure gas, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Instant-on valve construction for high pressure gas will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2190535

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.