90 92 each outer section 82b has a generally rectangular profile with rounded corners like that illustrated in fig8 it is apparent that inner air inlet passages 82 define hooked cross type pattern of passages in nozzle body 56 when viewed as shown in fig7 and that longitudinal axis l1 of inner section 82a and longitudinal axis l2 of outer section 82b intersect to form an obtuse angle when so viewed fig1 a f illustrate measured pressure profiles at various radial distances from the longitudinal central axis of inner air swirl chamber 80 of the fuel nozzle 50 of fig3 9 at different axial locations designated with the vertical 34 0 34 axis position line relative to inner air inlet passages 82 note that the axial location of measurement moves toward air inlet passages 82 as one proceeds from fig1 f through fig1 a only one half of the chamber 80 is shown since the pressure profile is generally symmetrical around the longitudinal central axis air entering inner air inlet passages 82 was supplied at 1 0 inch water stagnation air pressure it is apparent that the air inlet passages 82 are effective to provide a measured maximum air pressure in chamber 80 that is greater than 0 9 inch water fig1 e and a maximum air pressure that is closely adjacent wall w forming chamber 80 having radius of 0 24 inches in fig1 a f the pressure profile shown in fig1 a f was determined on a fuel nozzle scaled up in dimensions by about four 4.