Automatic, pendulum-type pressure system with pistons and flared (trumpet-type) shafts for transferring products (powders, liquids, granulates, concretes, etc.)

摘要

This consists of two identical, twinned pressure units with a half-phase difference between them. Each unit includes two chambers No. 7 and No. 22 fastened together, superposed and inverted. Each chamber includes a conical recess (angle at the apex of the cone of 90 DEG ) on which an inlet orifice for the product is provided. The first chamber No. 7 has a second orifice (outlet orifice) which communicates with the inlet orifice of the second chamber No. 22. Inside the chambers are flared shafts (angle at the apex of the cone of 90 DEG ) No. 8 and No. 23 which are different from each other and serve for closing and opening the respective chambers No. 7 and No. 22. Product is admitted via the piston No. 3 manoeuvred by means of the ram (jack) No. 1 when the chamber No. 7 is open and the chamber No. 22 is closed, pressure being created by the piston No. 3 when the chamber No. 7 is closed and the chamber No. 22 is open. The shafts No. 8 and No. 23 are manoeuvred by the respective rams No. 16 and No. 25. Dispensing is regulated by dispensers 3/2 with mechanical control and sprung return for the limits of travel and by dispensers 5/2 with pneumatic control for controlling the rams (the rams are all dual effect rams). The springs No. 11 serve for maintaining contact between the flared shafts and their seat. <IMAGE>