Patent ID: 8413446
Filing Date: 2013-04-09
Classification: F02C,F05D,F23R

Abstract:
1. A fuel injector arrangement, comprising a combustion chamber; a plenum; an injector comprising a tubular member extending along a centerline axis of the fuel injector arrangement, the tubular member terminating at a distal tip, at least one fuel orifice formed in the distal tip; and a premixing chamber configured to receive the injector and being at least partially disposed within the plenum and open to the combustion chamber, the premixing chamber having: a mounting member containing at least one radial to axial passageway configured to allow air from the plenum to enter and mix with fuel from the injector to form an air/fuel mixture within the premixing chamber; and an annular side wall made of porous material located downstream of the mounting member and the distal tip of the injector, configured to allow air from the plenum to enter the premixing chamber and create a lean boundary layer at the annular side wall made of porous material.