Engine generator
View Patent ↗A positioning pin is knocked onto a crankshaft of an engine and a key way is formed in a boss of a first flywheel. When an outer rotor type generator is connected with the engine, the boss of the first flywheel is fitted over the crankshaft so as to adjust the positioning pin to the key way. When an inner rotor type generator is connected with the engine, a rotor shaft on which a rotor of a generator is mounted is fitted to a second flywheel so as to adjust the positioning pin to a key way formed in the second flywheel. The ignition angle of the engine is determined by fitting the positioning pin to the key way.
1. An engine generator having an engine and a generator connected with said engine through an output shaft of said engine, said engine including an ignition apparatus for producing an ignition angle of said engine by securing an ignition coil to said engine and providing a magnet on an outer periphery of a flywheel at a position corresponding to said ignition angle with respect to said ignition coil, comprising:
a positioning pin knocked onto said outer periphery of said output shaft for determining said ignition angle of said engine;
means for securing an outer rotor to a first flywheel and for fitting a first boss of said first flywheel over said output shaft when an outer rotor type generator is selectively connected with said engine, and for fitting a second boss of a second flywheel over a rotor shaft on which an inner rotor of said generator is mounted and for fitting said rotor shaft over said output shaft and for projecting a rear end of said second boss rearwardly from a rear end of said rotor shaft when an inner rotor type generator is selectively connected with said engine; and
means for forming a first key way on an inner periphery surface of said first boss at an angular position to determine said ignition angle of said engine and for fitting said first key way over said positioning pin when said outer rotor type generator is selectively connected with said engine, and for forming a second key way on an inner periphery surface of a rearwardly projected part of said second boss at an angular position to determine said ignition angle of said engine and for fitting said second key way over said positioning pin when said outer rotor type generator is selectively connected with said engine.
2. The engine generator according to claim 1 , wherein said ignition apparatus is constituted by a protrusion provided on an outer periphery of said flywheel and a detecting section secured to said engine for detecting an angular position of said protrusion.