Fuel injection device
OwnerWerner Krausinventor
Life of this patent
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Abstract
The specification describes an injection system with means for supplying a hot gas stream consisting mostly or totally of combustion air. The hot gas supply device comprises a heating device independent from the internal combustion engine served. The hot gas flow is heated to a temperature of at least 150.degree.C and has a mean flow rate of at least one third of the combustion air required by the internal combustion engine during idling. The hot gas flow is supplied to a zone adjacent to the opening of the injector.
Claims16
A fuel injection system for an internal combustion engine which has at least one combustion chamber and a given combustion air requirement at idling speed comprising a fuel injection device including;
- a fuel injector ;
- an annular means for forming a chamber having an inner wall and surrounding said injector, with said injector having an opening for injecting a fuel mist jet into a zone of the chamber adjacent said opening, with a part of said wall extending in the direction of the fuel mist jet emerging from said opening of said injector in an axial direction beyond said opening, thereby defining said zone, and with the inner wall of said extending part of said annular means being shaped so that it is not reached by fuel droplets of the fuel mist jet;
- and
- a hot gas supply means connected to said chamber including a heating device independent of the internal combustion engine for supplying a hot gas current into said chamber downstream of said zone adjacent to said opening in said injector for passage through said zone at a mean flow rate of at most one-third of the given combustion air requirement at idling speed.
Dependencies are inferred from the claim text.