High-pressure fuel pump for a fuel injection system

A high-pressure fuel pump for applying high pressure to a fuel in a fuel injection system of an internal combustion engine, the pump comprising:

• a housing defining a housing bore with a pressure chamber in a first end region and a leakage chamber in a second end region;
• a pump piston guided in a pump piston guiding region formed by a pump piston guiding section of the housing, the pump piston, during operation of the high-pressure fuel pump moved in translation between the pressure chamber and the leakage chamber along an axis;
• wherein the leakage chamber includes a leakage collecting region and an equalizing region arranged in circular annular fashion around the pump piston guiding section and extending parallel to the axis from the leakage collecting region toward the pressure chamber;
• and
• a low-pressure damper arranged in the equalizing region, the low-pressure damper comprising an annular piston damper and an annular piston guided to move along the axis within an annular bushing.