FIELD: pumps.
SUBSTANCE: invention can be used in high-pressure fuel pumps for accumulator fuel systems. High-pressure fuel pump plunger pusher drive device comprises camshaft (1), cam follower (2) with spring (3), wedge-like head (4) and springs (7). Wedge-shaped head (4) is in contact with pushers (5) of plungers (6). Pushers (5) of plungers (6) have inclined surfaces interacting with wedge-shaped head (4). In upper part of wedge-shaped head (4) there are streams for supply of lubricant. Partitions are located inside the streams. Distance between partitions decreases from centre of streams to edges.
EFFECT: reduced contact stresses in kinematic pairs and lubrication of friction parts.
1 cl, 2 dwg
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