CYLINDER HEAD OF INTERNAL COMBUSTION ENGINE Russian patent published in 1995 - IPC

FIELD: mechanical engineering. SUBSTANCE: cylinder head 1 has intake passage 2 where branch pipe 3 of swirler with helical blade 4 is mounted. Branch pipe 3 has length 5 which is equal to L_b3 and inner diameter 6 equal to d_к. Inlet section 7 of intake passage 2 is engageable with outlet section 8 at engagement radii R_in, R_out 9 and 10 respectively. EFFECT: reduction of hydraulic losses in swirler passage within preset axial sizes of passage. 2 cl, 3 dwg