| 摘要 |
Air-fuel mixture is supplied to a first group of engine cylinders through the load range, whereas a second group of cylinders is supplied with air only up to a partial load and thereafter with an air-fuel mixture. Each group of cylinders has a respective throttle valve 7, 12 and associated control levers 47, 48 which co-operate with the cam surface 46 of a cam disc 45 to achieve the desired supply of air-fuel mixture, or air, under all operating conditions of the engine. The cam surface provides a particular opening schedule for the throttle valves and a cam stud 57 operates a switch 58 to initiate operation of fuel fuel injectors supplying the second group of cylinders. <IMAGE> |
