| 摘要 |
Described is a carburettor (8), comprising an air (2) inlet with a mechanically adjustable air valve (3), an into the air inlet coming mechanically adjustable atomiser, and a mechanical metering device connected with the air valve and the atomiser, maintaining a stoichiometric ratio between amounts of air and fuel. Furthermore the carburettor has fuel pressure regulating means/devices (13) that are equipped to influence the fuel pressure, in dependence of one or more dynamic engine load parameters, under which the vacuum signal in the air inlet, which is obtained via a vacuum intake conduit (12) coming into the air inlet (2). By regulating the fuel pressure also in dependence of the measured vacuum signal, the emission of unburned fuel is reduced under certain dynamic conditions of the combustion engine.
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