PNEUMATIC HAMMER Russian patent published in 1997 - IPC

Abstract RU 2086405 C1

FIELD: mechanical engineering; building. SUBSTANCE: pneumatic hammer has casing accommodating impact piston, working tool and hydraulic actuator positioned between the piston and the tool. The hydraulic actuator is made in the form of a sleeve containing a flanged bushing and adopted to interact with the working tool. The sleeve is filled with working fluid. The striker is instaled in the bushing. Diameter of the striker is less than the inner diameter of the sleeve. EFFECT: enhanced efficiency. 1 dwg

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RU 2 086 405 C1

Authors

Fominykh N.L.

Dates

1997-08-10—Published

1994-04-20—Filed