DIESEL HAMMER Russian patent published in 2001 - IPC

FIELD: diesel hammers for driving piles into ground. SUBSTANCE: diesel hammer has cylinder with gas exchange ports and piston, anvil block with combustion chamber in top part, and slider coupling cylinder to ram; cylinder has longitudinal slot; combustion chamber is located in top part of piston, and side surface of piton carries hook that enters longitudinal slot of cylinder; additionally introduced cylinder guide with stop is rigidly coupled with ram; spring is installed between stop and slider; the latter is loosely coupled with guide and ram. EFFECT: improved efficiency of diesel hammer. 8 dwg