DIRECT INJECTION OF A TWO-STROKE ENGINE

摘要

A measured quantity of combustible liquid is injected (124), into the cylinder in the space between the exhaust port (120) and the cylinder head (121). This delivers part of the air/fuel mixture toward to cavity (122) in the cylinder head and the other part toward the diametrically opposite side of the combustion chamber. The fuel is injected as a curtain in the shape of a divergent cone or cone segment with an angle between 90 and 150 degrees. The injector uses a solenoid (47) to operate a valve (43) which is biased toward the closed position by disc springs (40). The operation of the solenoid is synchronised with the rotation of the motor.