Workshop or hobby vacuuming system for acting on surfaces has jet lance containing injector co-axial with accelerating tube

摘要

The vacuuming system consists basically of a vacuum source and a container for jet material and a jet lance. The jet lance has an injector (5) inside it, co-axial with the acceleration tube. This consists of a jet body (6) with a narrowing in its cross section, and suction apertures (11) co-axial with the hose line. A mixing tube (7) is also fitted.