Piston pump used as a high pressure fuel pump for an internal combustion engine comprises a pump housing and a fixing flange having a connecting region which is separated from a holding body in the assembled position

摘要

Piston pump (10) comprises a pump housing (12) and a fixing flange (22) fixed to the pump housing and having a connecting region (36) which is separated from a holding body (20) in the assembled position. Preferred Features: The connecting region is formed as a protrusion in or an a contact region which lies on the holding body in the assembled position. The fixing flange on the pump housing has a welded section having a lower thickness than the remaining fixing flange. A weld seam is formed between the welded section and the pump housing.