| 释义 |
pre-comˈbustion
[pre- A. 2.]
In certain diesel engines, commencement of combustion of the charge before it is drawn into the main cylinder, in an adjacent small chamber; usu. attrib., denoting (an engine equipped with) a chamber for this purpose.
1923L. H. Morrison Diesel Engines xx. 472 One of the first of the precombustion engines developed in the United States was the Western... The precombustion chamber is located in the cylinder head almost in line with the cylinder bore. 1932Mod. Diesel v. 43 On the Continent the line of development appears to have been directed towards securing a steady and progressive burning of the fuel by a system of pre-combustion, the charge being ignited in a partially separated chamber from which the more or less controlled expansion then passes to the working cylinder. 1972S. H. Henshall Medium & High Speed Diesel Engines for Marine Use iv. 75 Pre-combustion chamber hot member engines are characterized by their smooth running, complete combustion with clean exhaust and a tendency to high fuel consumption, together with difficulties in starting in very cold conditions. |