| 摘要 |
<p>A method and apparatus for injecting fuel into a diesel engine combustion chamber is provided wherein a pre-pilot injection (225) is injected sufficiently prior to critical mass conditions being achievable to permit vaporization and formation of a substantially homogenous mixture before a critical mass exist. Preferably, a pilot injection (215) is injected after the pre-pilot injection (225) but at or before a point wherein a critical mass based on the pre-pilot (225) quantity is attained. This will result in a reduced heat release rate which in turn will result in a slower, smoother and more controlled build-up of pressure in the combustion chamber and thereby advantageously reduce combustion noise.</p> |
