AIR-OPERATED BLOWER Russian patent published in 1995 - IPC

FIELD: pneumatics. SUBSTANCE: driving part of the blower has two axially interconnected pistons of greater and smaller diameter. The pistons are mounted to define small and great above-piston spaces along the axis inside the housing. The inlet opening for compressed gas is made in the wall of the chamber interposed between the pistons. The air distributor is made up as a plunger with two gates mounted inside the piston. The relief passageway for discharging exhaust gases from the chamber to the outlet openings, made in the wall of the chamber, is made in the piston. The pump part has pump chamber 19 and plunger received in the chamber and coupled with the pistons. The blower is provided with the sucking tank connected with the housing. The plunger is mounted from the side of the piston of greater diameter. The sucking chamber and pump cylinder are arranged above the driving cylinder 1. EFFECT: improved design. 2 cl, 1 dwg