SINGLE CYLINDER ENGINE FOR A MOTOR CYCLE WITH AN ECCENTRIC CAM TYPE CRANK SHAFT, CAPABLE OF USING A NEEDLE BEARING WITH A CRANK PIN BEARING FOR THE ECCENTRIC CAM TYPE CRANK SHAFT

摘要

PURPOSE: A single cylinder engine for a motor cycle with an eccentric cam type crank shaft is provided to improve fuel efficiency of an engine and to reduce manufacturing costs.;CONSTITUTION: An eccentric cam-crank shaft-crank pin-needle bearing(28) is inserted into an eccentric cam-crank shaft-crank pin(20) of an eccentric cam-crank shaft(18). An eccentric cam-crank shaft-connecting rod-big end(29) is inserted into an upper part, and an eccentric cam-crank shaft-detachment counter weight(22) is inserted. Two eccentric cam-crank shaft-detachment counter weight-mount screws(27) are locked at the eccentric cam- crank shaft-detachment counter weight, and an eccentric cam-crank shaft-detachment counter weight-slot bolt(24) is mounted.;COPYRIGHT KIPO 2013