Compressed air spray cleaning gun has widened cross-sectional area at front end of compressed air line opening into mixer chamber to increase suction from cleaning container

摘要

the spray cleaning gun which has a cleaning container (13), suction channel (7) and compressed air line (6) extending to a mixer chamber (9) is designed so that the front end (16) of the compressed air line projecting into the mixer chamber has a widened cross-sectional area (17) forming an expansion nozzle set on the end of the air line. The expansion nozzle has a conically widening section (22) with several circumferentially arranged apertures (19) and changing into a coaxially aligned tubular section (23).