Abstract: A method and a device for supplying fuel and air to an internal combustion engine 1, in the case of which fuel is supplied to at least one injection valve 2 and combustion air is supplied to at least one intake pipe 3 provided with a throttle 4. For the purpose of achieving a simple and reliable mode of operation and for the purpose of guaranteeing a reliable supply of fuel and air to the internal combustion engine 1 under all operating conditions, the intake pipe 3 has coercively supplied thereto a predetermined amount of air corresponding to the respective position of the throttle 4 and, simulatenously, the injection valve 2 has coercively supplied thereto an amount of fuel in a fixed predetermined ratio to the amount of air.

Abstract: The invention relates to a flow energy conversion machine having a substantially circular flow-through cross-section and comprising stationary guide blades disposed in at least one plane perpendicular to the flow direction, and rotor blades disposed in at least one plane parallel to the plane of said guide blades and cooperating with said guide blades, said guide blades being connected to a stationary part of said machine while said rotor blades are secured to a part mounted for rotation about an axis extending substantially parallel to the flow direction. In order to achieve a simple, reliable and cost-effective construction of the machine and its blades, the invention provides that the guide blades are secured to a stationary shaft located at a central position in the flow path, and that the rotor blades are secured to a rotor mounted for rotation about the centrally located shaft.