| 摘要 |
PCT No. PCT/FR88/00385 Sec. 371 Date Mar. 16, 1989 Sec. 102(e) Date Mar. 16, 1989 PCT Filed Jul. 25, 1988 PCT Pub. No. WO89/01090 PCT Pub. Date Feb. 9, 1989.The primary zone (1) of the auxiliary combustion chamber has a shape of revolution about an axis (X-X) and is defined by a flame tube (2) which is of cylindrical and/or frustoconical shape, coaxial with said axis (X-X), smooth and devoid of air supply orifices of notable section, and by the chamber inner end (3) which is movable in a direction parallel to said axis (X-X) and cooperates with a fixed seat (13) rigidly connected to the flame tube (2) and separating the primary zone (1) from a cavity (4) so as to constitute, with the chamber inner end (3), throttling means (31) which have a variable passage section and are constituted by a sleeve (10) rigidly connected to a balancing piston (11), which sleeve and piston are coaxial with said axis (X-X), the balancing piston (11) being slidable in a cylindrical bearing surface (12) rigidly connected to the walls of the cavity (4). The inlet of the fuel under pressure is constituted by at least one nozzle (14) which is arranged in said sleeve (10) in such manner as to open out toward the primary combustion zone (1). |
