| 释义 |
ˈafter-ˌburning, vbl. n.
[cf. G. nachbrennen; after- 9.]
1. In internal combustion engines, that diminishing combustion which follows the fuller force of the first ignition.
1887J. A. Ewing in Encycl. Brit. XXII. 525/1 The process of combustion..is essentially gradual; when ignition takes place it begins rapidly, but it continues to go on at a diminishing rate throughout the stroke. That part which takes place after the maximum pressure is passed is the phenomenon of after-burning. 1931A. W. Judge Automobile & Aircraft Engines (ed. 2) i. 59 The part of combustion which occurs after the point of maximum pressure is termed the ‘after burning’ portion.
2. Combustion in the after-burner of a jet-propelled aircraft.
1946Aeroplane Spotter 19 Oct. 244/1 For the supersonic range of speeds, what is known as ‘after-burning’ was to be employed for generating even more thrust. The ‘after-burning’ consisted simply of fuel jets disposed annularly around the tail pipe or nozzle much in the same way as planned for the Athodyd or ram-jet. 1949Flight 8 Sept. 285/1 Exhaust reheat, or ‘afterburning’, is the name given to the process of burning fuel in the exhaust pipe of a jet-propulsion unit. |