Pneumatic oscillating valve and pneumatic warning

Details Pneumatic oscillating valve and pneumatic warning Pneumatic oscillating valve and pneumatic warning

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 7/17 (2006.01) F15B 21/12 (2006.01) F16K 17/02 (2006.01) G10K 9/04 (2006.01) B61L 15/00 (2006.01)

Patent

CA 2532744

The pneumatic oscillating valve includes a housing defining an internal chamber, an inlet passageway, and an outlet passageway. An annular seat extends into the internal chamber. A diaphragm is disposed in the internal chamber. The diaphragm seats against the annular seat and separates the inlet passageway from the outlet passageway. A spring engages the diaphragm to seat the diaphragm against the annular seat. As fluid is admitted to the inlet passageway, pressure increases in the inlet passageway until sufficient pressure is present to overcome the spring and unseat the diaphragm. The inlet passageway is more restrictive to fluid flow than the outlet passageway such that fluid is exhausted more quickly from the outlet passageway than can pass through the inlet passageway allowing pressure in the inlet passageway to reduce to a point less than the spring force of the spring thereby allowing the diaphragm to reseat on the seat.

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