| 摘要 |
A method of controlling the power of an internal combustion engine (1) comprising the following steps; in a first, lower power phase of operation of the engine (1), supplying a mixture of air (8) and fuel to the combustion chamber. The majority of the fuel is supplied as fuel vapour. The power output of the engine (1) is increased by progressively opening a combustion air control means to increase the volume of air (8) supplied to the combustion chamber and at the same time progressively increasing the volume of fuel supplied. In a second, higher power phase of operation of the engine (1) the combustion air control means is maintained in a substantially constant state, the power output of the engine (1) being increased by supplying an increasing volume of liquid fuel to the combustion chamber and at the same time reducing the volume of fuel vapour supplied such that, at maximum power substantially all the fuel is supplied in liquid state.
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