Radial piston pump for fuel high pressure supply in fuel injection system of internal combustion engine, has pump unit including pump piston, where flow rate control of piston pump takes place by stroke length adjustment of pump piston

摘要

The pump has a pump housing, and a pump unit (2) that includes a pump piston (21) and a pump cylinder (22). The pump piston is movably arranged back and forth in the pump cylinder. The pump unit is drivable via an eccentric shaft (3) that is mounted in the pump housing. A required flow rate control of the radial piston pump takes place by a supply-dependent stroke length adjustment of the pump piston. The stroke length adjustment of the pump piston takes place by varying an eccentricity of the eccentric shaft.