| 摘要 |
PURPOSE:To increase air inlet rate in the center valve in such a way that one of more than three air inlet valves per air cylinder is arranged near the center of the cylinder bore, air inlet paths to be communicated to the air inlet valves are independently formed, and throttle valves are provided on the air inlet paths. CONSTITUTION:When a throttle lever 64 is turned counterclockwise by throttle operation, levers 68, 70 also are turned in the same direction with a shaft 66, a throttle valve 52 is moved up through a link 72 while a throttle valve 60 is moved through a link 74 in the left direction, and air inlet paths 54, 56 are opened in their interlocking. By this reason, air inlet rate which flows through the paths 54, 56 is increased. Then, fuel is fed through a main nozzle 50 to the aspiration to the path 54, the mixed air is flowed through an air inlet path 44 via three air inlet valves 16B-16D into a combustion chamber 24. Besides, air only is fed through the path 56, and the air is flowed through a valve 16A into the combustion chamber 24. Thus, since the independent air inlet path 56 is communicated to a valve 16A, a large amount of aspiration can be fed into the combustion chamber 24. |
