Multicylinder internal combustion engine

Claim 1

A fuel supply arrangement for an internal combustion engine, the fuel supply arrangement including an injection means for supplying a premixed fuel-gas mixture so that the fuel is in the form of a mist with droplets of a substantially identical droplet size each having a diameter at which a flow characteristic is obtained which is the same as a flow characteristic of the gas of the fuel-gas mixture, the injection means includes a discharge orifice, and is constructed so that the fuel-gas mixture is discharged from the discharge orifice substantially at the speed of sound, and in that the injection means includes an injection nozzle, a fuel-gas mixing chamber means comprising a longitudinal bore hole in the injection nozzle, a valve means for selectively opening and closing the discharge orifice in dependence upon a pressure in the mixing chamber means, an approximately cylindrically shaped insert means, of porous material and having a hollow interior, is arranged in the mixing chamber means for filtering all of the air reaching the nozzle and all of the fuel, and disposed with a hollow space between its outer circumference and the wall of the longitudinal bore hole, and comprising closure means at one cylindrical end of the insert means, means contiguous to the closure means to seal the insert means radially with respect to said longitudinal bore hole for isolating said hollow space from the closure means, means for introducing fuel to said injection means toward an exterior of said closure means of said insert means, means for introducing compressed air to the hollow space, and the hollow interior of said insert means being developed conically to present an enlarged aperture to said valve means.