Patent ID: 6129114
Filing Date: 2000-10-10
Classification: F15B,Y10T

Abstract:
A pneumatic pulse generator, comprising:a distributor body having a chamber exhibiting at least a first opening connected to an input for a pressurised gas, at least a second opening connected to an output for the pressurised gas, and at least a third opening;a first cursor, mobile internally of said chamber and able to assume at least a first position, in which said first cursor closes a connection between the first opening and the second opening and enables a connection between the second opening and a discharge, and a second position, in which the first cursor enables a connection between the first opening and the second opening and closes a connection between the second opening and the discharge; the first cursor being pushed towards the first position by effect of a pressure level at said input;a second cursor, mobile internally of said chamber and able to assume at least a first position, in which said second cursor enables a connection between the first opening and the third opening and closes a connection between the third opening and a discharge, and a second position in which the second cursor closes a connection between the first opening and the third opening and enables a connection between the third opening and said discharge; the second cursor being pushed towards the first position by effect of a pressure level and said input;a first compression chamber, connected through a first conduit to said third opening;first means for regulating a flow of pressurised gas to the first compression chamber along said first conduit;means for pushing the first cursor from the first to the second position by effect of a pressure in the first compression chamber;a second compression chamber connected through a second conduit to said second opening;second means for regulating a flow of pressurised gas from the second compression chamber along the second conduit;means for pushing the second cursor from the first to the second position by effect of a pressure in the second compression chamber.