CO2 NOZZLES

摘要

A nozzle and method of providing CO2 for cleaning includes providing a CO2 flow; phase transferring the CO2 flow into gaseous CO2 and CO2 pellets; interrupting the CO2 flow with a screen member; retaining the CO2 pellets of a select larger size upstream of the screen member; permitting the CO2 pellets of a select smaller size to pass through the screen member for cleaning.