Device for shaping a flexible injection pressure profile by means of a switchable actuator
The invention relates to a device for injecting fuel into the combustion chambers of an internal combustion engine, with an injector ( 3 ) enclosed by an injector housing ( 2 ), whose control chamber ( 12 ) is acted on by a control volume, and with control valves ( 14, 15 ) for increasing/relieving...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | The invention relates to a device for injecting fuel into the combustion chambers of an internal combustion engine, with an injector (
3
) enclosed by an injector housing (
2
), whose control chamber (
12
) is acted on by a control volume, and with control valves (
14, 15
) for increasing/relieving the pressure in the nozzle chamber (
10
) of the injector (
3
) and in the control chamber (
12
) of the injector (
3
). The control valves (
14, 15; 35
) are disposed in parallel to one another. They are hydraulically coupled to one another without side effects by means of a coupling chamber (
11
), and are actuated by means of an actuator (
13
) that can be switched into different stroke levels. |
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