| 释义 |
pre-igˈnition
[pre- A. 2.]
Ignition of the fuel and air mixture in an internal-combustion engine before the passage of the spark.
1898A. G. Elliott Gas & Petroleum Engines iv. 88 This third engine has a vaporizer which..is so constructed that even if it became red-hot there would be no risk of pre-ignition. 1909Westm. Gaz. 1 Apr. 4/1 The compression has been increased to the highest point compatible with safety in regard to freedom from pre-ignition. 1951‘S. Abbey’ Automobile Fault-Tracing ii. 28 Pre-ignition and auto-ignition differ from detonation in that the incoming charge is ignited by an incandescent particle or surface before the sparking plug fires. 1970A.A. Bk. of Car 50 Pre-ignition, like knocking, can cause extensive damage, as well as reduce engine power. 1977I. M. Campbell Energy & Atmosphere v. 108 Autoignition (also referred to as preignition, knock, or pinking) arises in an internal combustion engine largely on account of the finite velocity of flame propagation from the spark zone. |