The present invention relates to a device for controlling fuel injection quantity in diesel engines which are used as outboard marine engines.
In a typical diesel engine, the fuel injection device is controlled by a rotary control pinion and rack, and the quantity of injection of fuel from the fuel injection device is increased or decreased as the control pinion is rotated in one and the other directions.
This rotary control pinion, however, does not have a function of a safety device which, when a trouble has happened to take place in the diesel engine, automatically reduces the fuel injection quantity to finally stop the diesel engine.
On the other hand, in the case of diesel engine used as an outboard marine engine in which the crankshaft is disposed vertically, it is possible to lay a control rod for controlling the fuel injection quantity in parallel with the crankshaft and move the same in the vertical direction.