Patent ID: 8870159
Filing Date: 2014-10-28
Classification: B05B,Y10T

Abstract:
1. A pulsed flow device comprising: —a continuous injection of gas in the device from a reservoir, —a flow obstructing means, —the obstructing means being combined with a dynamic sealing system in a sealed manner around the flow path, wherein the obstructing means is a chopper taking the form of a rotating disc or disc with an alternating movement to open and shut the flow, said chopper being associated with a rotation shaft, and wherein the rotation shaft of the disc does not go through a flow axis; and wherein the obstructing means opens and shuts the flow path by obstruction at frequencies such that the reservoir conditions remain unchanged when the system reaches pseudo-stationary operating conditions, wherein the dynamic sealing system comprises: a main seal, a secondary seal, and an upstream ring and a seal compensating chopper movement variations.