Patent ID: 9279587
Filing Date: 2016-03-08
CPC Classification: F02K,F23D,F23R

Claim Text:
1. A fuel injector for mixing fuel and air of a jet engine, comprising: at least one air-carrying duct of the fuel injector; at least one further fuel-carrying duct for supplying fuel into a combustion chamber; guide elements provided at least in the air-carrying duct and extending over an entire height from a radially inner wall to a radially outer wall of the air-carrying duct and distributed over a circumference of the air-carrying duct for imparting a twist to air flowing in the air-carrying duct; each guide element having a trailing edge area with at least one of a downstream extending projection or an upstream projecting recess, the at least one of the projection or the recess having a portion configured at least approximately as a sharp edge, the trailing edge area improving mixing between the air and fuel downstream of the ducts, the at least one of the projection or the recess creating at least one open passage from a first surface of the guide element to an opposite second surface of the guide element upstream of a downstream-most edge of the guide element.