AIR-OPERATED HAMMER Russian patent published in 1998 - IPC

FIELD: mechanical engineering, in particular, percussive machine used in mining, metallurgy and construction. SUBSTANCE: wall of air-operated hammer body has through channel. Body end is plugged on the side of handle with cover having channels converging in one point and communicated with chambers of working and idle strokes, and also with hollow of sleeve installed in handle. In this case working stroke chamber is communicated through body hole with damping chamber formed by sleeve and body. EFFECT: higher efficiency. 1 dwg