Patent ID: 6884041

Claim:
A solenoid-valve-controlled fuel-injection pump for an internal combustion engine, comprising: a high-pressure region; a low-pressure region; a low-pressure compensating piston arranged in the low-pressure region in order to compensate for pressure fluctuations in the low-pressure region; a valve seat; and a solenoid valve including a valve needle that separates the high-pressure region from the low-pressure region and connects the high-pressure region and the low-pressure region in a pump housing, via the valve seat, wherein: an injection period is controlled by an opening of the solenoid valve, and the low-pressure compensating piston is positioned coaxially to the valve needle and includes a component part that is separate from the valve needle, wherein the low-pressure compensating piston is configured to compensate for pressure fluctuations in the low-pressure region by exerting a force on the solenoid valve.