Pressure relief valve assembly

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

Patent

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Details

F16K 17/04 (2006.01) F04B 49/22 (2006.01) F16K 17/06 (2006.01)

Patent

CA 2392389

A pressure relief valve assembly for relieving fluid pressure in an exhaust outlet (154) includes a deformable fluid passage in fluid communication with the exhaust outlet. The passage is blocked by a poppet (164) disposed in the passage for discouraging fluid from passing there through. A spring (166) disposed in the passage urges the poppet against the fluid, and a knob (168) having external buttress threads is disposed in the passage to compress the spring. The knob compresses the spring to prevent fluid below a predetermined pressure from escaping through the passage past said poppet.

L'invention concerne un ensemble de clapet de sécurité pour réduire la pression d'un fluide dans une sortie de décharge (154). Cet ensemble comprend un passage de fluide pouvant être déformé et communiquant par le fluide avec la sortie de décharge. Ce passage est bloqué par un champignon (164) placé dans le passage pour s'opposer au passage du fluide. Un ressort (166) prévu dans le passage pousse en force le champignon contre le fluide, et une molette (168) pourvue de filets en dents de scie externes est disposée dans le passage pour comprimer le ressort. En comprimant ce ressort, la molette empêche le fluide dont la pression est inférieure à une valeur prédéterminée de s'échapper dans le passage au-delà du champignon.

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