| 摘要 |
<p>The aim of the invention is to prevent the formation of smoke at least during the restarting of the engines. To this end, the fuel purged during the engine shutdown is trapped and drained during the beginning of the following flight, making use of the incline of the helicopter. A collector (4) of a helicopter engine comprises an outer longitudinal wall (41) and two closed end walls (42, 43), a longitudinal axis of symmetry (X'X) inclined in an ascending manner, couplings (51 to 53) to be connected to the purge drains, and a connection (54) coupled to a gas jet nozzle (5) and connected to the bottom end wall (43). The collector (4) also comprises, in the inner space (V) thereof, an enclosure (6) having an axis of symmetry (E'E) substantially parallel to the axis of the collector (X'X). The enclosure (6) has a longitudinal wall (61) and two transverse end walls (62, 63). The enclosure (6) is connected to the purge coupling of the injection wheel (53) via a radial connection (64) joining the longitudinal wall (61) thereof, the axis of symmetry of the enclosure (E'E) being inclined in relation to the horizontal ground of reference (S0) when the helicopter is in the ground position (H0), by an angle of reference (A0) such that said axis (E'E) is parallel to the ground of reference (S0) when the helicopter is in the acceleration phase.</p> |
