DISPOSITIF ETRANGLEUR PNEUMATIQUE

摘要

In an adjustable choke a restricted choke fluidway takes the form of a groove in the axial face of a plate sealingly resting against a fixed plate, the groove having a cross-section changing along its length. Fluid is let into one end of the groove through the grooved plate and out through a port in the face of the fixed plate. By turning the grooved plate, the length of groove between the two ports is changed so that the choking effect is changed.