Excess flow shutoff

F - Mech Eng,Light,Heat,Weapons – 16 – K

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

F16K 17/34 (2006.01)

Patent

CA 2524740

A flexible connector (10) incorporates an excess flow shutoff (24) at its inlet (14) to prevent uncontrolled flow in the event of a failure such as rupture or separation of the connector. A shutoff sleeve (62) moves in a body (26) between an upstream, open position and a downstream, closed position. A spring (52) biases the shutoff sleeve toward the open position. The sleeve includes a flow metering passage (64), and a pressure drop resulting from excess flow through the passage moves the sleeve to the closed position against a shutoff seat (60). A time delay is provided by a damping assembly (70) including a variable volume damper chamber (82) defined in part by a flexible bladder (72). Upstream pressure is communicated to the damper chamber by a restricted flow passage provided by metal to metal contact of a washer (92) against a body surface (96).

L'invention concerne un raccord souple (12) doté, à son admission (14), d'un arrêt (24) d'écoulement parasitaire qui empêche l'écoulement incontrôlé dans le cas d'une défaillance telle qu'une rupture ou séparation dudit raccord. Un manchon d'arrêt (62) se déplace dans un corps (26) entre position ouverte en amont et une position fermée en aval. Un ressort (52) sollicite le manchon d'arrêt en direction de la position ouverte. Ledit manchon comporte un passage de mesure de débit (64), et une chute de pression résultant du débit excessif traversant le passage déplace le manchon vers la position fermée contre un siège d'arrêt (60). Un délai de temporisation est prévu par un système amortisseur (70) comportant une chambre d'amortissement à volume variable (82) en partie définie par une vessie souple (72). La pression en amont est communiquée à la chambre d'amortissement par un passage de débit restreint fourni par contact métallique d'une rondelle (92) contre une surface du corps (96).

LandOfFree

Say what you really think

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

Rating

Excess flow shutoff does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

     

Profile ID: LFCA-PAI-O-1390831

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