CAM FOLLOWER, INJECTION PUMP AND VALVE ACTUATOR COMPRISING SUCH A CAM FOLLOWER, AND MANUFACTURING METHOD

摘要

The invention concerns a cam follower (1), comprising: a tappet (10) having a cylindrical outer surface (14) centered on a longitudinal axis (Y1) and adapted to slide in a housing surrounding the tappet (10), a pin (30) extending between two opposite ends (34) along a transverse axis (X1) perpendicular to the longitudinal axis (Y1), a roller element (40) movable in rotation relative to the pin (30) around the transverse axis (X1) and adapted to roll on a cam (4), and lubrication channels (80) for lubricating the pin (30) and the roller (40). According to the invention, the cam follower (1) further comprises a support element (20) mounted in the tappet (10) and supporting the pin (30), and the lubrication channels (80) include at least one pair of consecutive channels (81, 82) formed through the tappet (10) and the support element (20). The invention also concerns an injection pump and a valve actuator for a motor vehicle, each comprising such a cam follower (1). The invention also concerns a method for manufacturing such a cam follower (1).