| 摘要 |
PCT No. PCT/FR97/01927 Sec. 371 Date Jun. 10, 1998 Sec. 102(e) Date Jun. 10, 1998 PCT Filed Oct. 28, 1997 PCT Pub. No. WO98/19063 PCT Pub. Date May 7, 1998The present invention relates to a shut-off system for an orifice for introducing combustion air into a ramjet with a consumable auxiliary motor (14). According to the invention, this shut-off system comprises: an elastic system (28, 29, 31, 32) connected to the shut-off flap (20A, 20B); and a retaining element (33) for keeping the said elastic system in the said tense state during the initial phase of rocket operation, the said retaining element being sensitive to the hot gases emitted by the said consumable auxiliary motor (14) so that on completion of combustion thereof, the said retaining element (33) releases the said elastic system which spontaneously changes from its tense state to its relaxed state, bringing the said flap from its shut-off position to its open position.
|
