Engine with mechanical governor

摘要

A bearing boss (3) is protruded from a front wall (2) of a crankcase (1), and a crankshaft (4) is supported at its front journal portion (5) by this bearing boss (3). Interlocking shafts (7) are disposed within the crankcase (1) in parallel to the crankshaft (4), and a crank gear (6) and input gears (8) attached to the interlocking shafts (7) are arranged coplanarly. Balancer shafts (11) are used as the interlocking shafts (7), governor weights (9) are mounted to the rear surface (12) of the input gear (8), and a governor sleeve (10) is located behind the governor weights (9).