Abstract: A fuel supply arrangement with a fuel metering valve for external-ignition combustion engines, in which continuous fuel addition is provided to the intake pipe. The latter has an air funnel acting jointly with a throttle member coaxially located and axially movable. The throttle member is adjustable against a restoring force via intake pipe underpressure acting in a working chamber which can be vented into atmosphere. The throttle member is actuated by a diaphragm located in a diaphragm housing having one chamber connected to the atmosphere, and having a second chamber at intake pipe underpressure. The second chamber can be vented to atmosphere by a valve having an actuation position which is arbitrarily variable through relative spatial arrangement of a tripping element on the throttle, and the valve. Either the tripping element or the valve is connected rigidly to the axially movable throttle member and the other one of these two elements is connected to an arbitrarily adjustable linkage of the gas pedal.

Abstract: A control mechanism for operation of an internal combustion engine has a throttle, a plurality of cylinders and a three dimensional cam formed with first and second curved surfaces; the first surface is dependent in cam position from a changeable operating parameter and an arbitrary change in position of the throttle. A control unit determines the total fuel consumption both for the operatively warm and the operatively not warm engine; an exhaust gas return valve and a first control valve is provided for the control unit, as well as a firing point controller and a second control valve for the controller. The control unit and the control valves are controlled by at least one of the curved cam surfaces.