| 摘要 |
A mechanical device C, with no moving parts, that can be externally attached to the exhaust port of a combustion engine, specifically an aircraft gas turbine engine, to suppress contrail formation. The combusted gases are inputted into the device and deflected by stator vanes A1, A2, A3, which causes the gases to rotate in order to centrifugally separate moisture from the gases. A central shaft S of the device may be coaxial with a low-pressure shaft of the engine. Water in the gases may condense on soot particles, the soot particles acting as nucleation centres for further precipitation. A surface P of the device may be coated with a condensation inducing metal, e.g. silver. The device may comprise a centrifuge vessel V, with cooling fins A4 on an outer surface thereof. Water condensed from the gases may be collected in a drain D, and subsequently drained out of the device. |
