A pneumatic pulse generator

摘要

The pneumatic pulse generator (1) comprises two pistons (12 and 15) which are mobile internally of a chamber of a distributor body (4) into which open an input (2) of a pressurised gas, an output (3) and a first conduit (24) connected to a first compression chamber (23). A second conduit (27) connects the output (3) to a second compression chamber (26). Two choke devices (25 and 28) enable the flow of pressurised gas to the two compression chambers to be regulated. The pulse generator (1) enables a succession of square-wave pulses to be generated at the output (3), the pulses having a work period which is adjustable by means of the choke device (28) on the second conduit (27) and a pause period which is adjustable by means of the choke device (25) on the first conduit (24). The generator (1) is particularly useful for controlling a blower device for cleaning a dust filter.