| 摘要 |
<p>A hydraulic control device for an apparatus for injecting fuel into a combustion chamber of an internal combustion engine has an externally controllable actuation device and a valve part, which cooperates with this actuation device. In order to determine the injection parameters, this valve part controls pressure fluid connections between at least one high pressure-carrying conduit and a low pressure-carrying conduit. The valve part has at least two valve seats in order to produce a multi-stage injection event. These are controlled by separate valve members, which are guided so that they can move in relation to each other and can be actuated in the same direction. Multi-stage injection events can consequently be produced by means of a single triggering of the actuation device. This reduces the triggering frequency and therefore reduces the heat generation of the actuation device.</p> |
