F - Mech Eng,Light,Heat,Weapons – 02 – B
Patent
F - Mech Eng,Light,Heat,Weapons
02
B
171/4
F02B 71/04 (2006.01) B25D 9/10 (2006.01) F02B 63/02 (2006.01)
Patent
CA 1137416
ABSTRACT OF THE DISCLOSURE In a drilling and chipping hammer driven by an internal combustion engine, a flywheel is connected to the engine crankshaft. A planetary gear system transmits the rotational movement of the crankshaft to the flywheel so that the revolutions per minute of the flywheel are raised above the revolutions per minute of the crankshaft.
333221
Hilti - Aktiengesellschaft
Rolston George A.
LandOfFree
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