Patent ID: 9080676
Filing Date: 2015-07-14
Classification: F04B,F16K,Y10T

Abstract:
1. A differential pressure poppet valve, the valve comprising: a valve body, the valve body having at least one flow inlet and at least one flow outlet; at least one shutter guide disposed inside the valve body; at least one poppet shutter guided by the shutter guide; at least one flow passage from the flow inlet to the flow outlet, the flow passage being formed between an inside surface of the valve body and an outside surface of the shutter guide and of the poppet shutter; at least one biasing member configured to bias the poppet shutter towards a closed position so as to block the flow passage through the flow inlet when the poppet shutter is in the closed position; at least a first damper comprising a ring of shock-absorbing material configured and arranged to at least partly dissipate or absorb impact energy of the poppet shutter when the poppet shutter impacts against the closure seat to close the flow inlet; and a second damper comprising a ring of shock-absorbing material, said second damper being configured and arranged to at least partly dissipate or absorb impact energy of the poppet shutter when the poppet shutter impacts against the shutter guide to open the flow inlet.