| 摘要 |
588,084. Internal-combustion engines and turbines; air compressors. WHITTLE. F. Nov. 17, 1942, No. 16278. [Classes 110 (i) and 110 (iii)] [Also in Group XXVII] The power of an internal-combustion engine or a gas turbine is temporarily increased by the injection of liquid ammonia into the ingoing air. The drawing shows an application to a jetpropulsion plant for aircraft which includes a centrifugal compressor with inlets 1, combustion chambers 3, turbine and propulsion pipe 4. Fuel is supplied from a tank 5, by a gear-wheel pump 6 past a throttle valve 8, a valve 9, a governor control 10 and a stop valve I], to the burners 7B. The throttle valve 8 is fully open when the control lever 13 is in the position 13c. When the lever is moved to 13B, an ammonia valve 17B is opened and gas passes from a bottle 16 by pipes 17 to the compressor inlets. This flow of ammonia is stopped at a valve 19 if the pressure of the fuel supply in pipe 7E fails. The pressure of the ammonia, acting on a piston 18A closes valves 14A, 15A, so stopping the supply of air to the pilot's cabin and of cooling air to the bearings during the flow of ammonia. The piston 18A also throttles the fuel supply at valve 9 to compensate for the fuel value of the ammonia. Reference has been directed by the Comptroller to Specification 578,766. |
