ELECTROMAGNETICALLY ACTUATABLE INTAKE VALVE FOR A HIGH-PRESSURE PUMP, AND HIGH-PRESSURE PUMP
The invention relates to an electromagnetically actuatable intake valve for a high-pressure pump in a fuel injection system, in particular in a common rail injection system, comprising an electromagnet (1) for acting on an armature (2) which can carry out a stroke movement and which is acted upon by...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | The invention relates to an electromagnetically actuatable intake valve for a high-pressure pump in a fuel injection system, in particular in a common rail injection system, comprising an electromagnet (1) for acting on an armature (2) which can carry out a stroke movement and which is acted upon by the spring force of a pressure spring (4) in the direction of a valve tappet (3) that can carry out a stroke movement such that the armature (2) is mechanically coupled to the valve tappet (3) when the electromagnet (1) is in the deenergized state and is held in an open position. According to the invention, a central bore (5) passes through the armature (2), said bore connecting pressure chambers (6, 7) formed on both sides of the armature (2). Furthermore, a pin-shaped displacement element (8) is provided which is immersed into the bore (5) at least during a stroke movement of the armature (2). The invention additionally relates to a high-pressure pump comprising such an intake valve. |
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