Patent ID: 7882817
Filing Date: 2011-02-08
Classification: F02N,F02P

Abstract:
1. An engine starting system for a 4-stroke engine having a piston and a crankshaft, said engine starting system comprising: a recoil starter comprising a reel and a recoil rope wound around the reel; a ratchet mechanism, said recoil starter being connected to the crankshaft via said ratchet mechanism for transmitting a one-directional rotation of the recoil starter to the crankshaft; a generator for generating electric power in conjunction with rotation of the crankshaft by the recoil starter; a control unit; and an ignition device controlled by the control unit using the electric power from the generator as a power supply to generate a spark in the vicinity of a compression stroke top dead center orientation of the piston; wherein said 4-stroke engine is adapted to be started by pulling the recoil rope to rotate the crankshaft, and wherein said engine starting system further comprises: a notifying unit for notifying a length of the recoil rope required to turn the crankshaft from a turning position of the crankshaft, encountered when the piston is located in the vicinity of the compression stroke top dead center, to a turning position of the crankshaft adapted to initiate a start operation of the engine.