dimensioned in each case the type of construction which is shown in fig3 a and b allows the exceptionally compact form of the mixer assembly to be clearly seen by means of which an easy integration into burner systems which already exist is possible for fuel injection flow profile struts 17 which are axially oriented are provided in the region of the air inlet openings which struts are arranged in an equally distributed manner in the circumferential direction of the flow through component 1 in each case and in which are provided fuel nozzles for fuel injection a detailed view of such a flow profile strut 17 is shown in fig4 a and b fig4 a shows a longitudinal section through such a flow profile strut 17 along which extends a bore 18 which is axially oriented which provides side fuel nozzle orifices 19 in the region of the air inlet openings in each case sectioned drawings along the section lines aa bb and cc are shown in each case in fig4 b the fuel nozzle orifices 19 which are oriented in the circumferential direction in each case through which fuel can be injected in each case into two air inlet openings which are directly adjacent in the circumferential direction are clearly illustrated the fuel injection into the respective air inlet openings takes place with consideration for an optimized injection depth and.