SNAP-IN CONNECTION FOR PUMPING PLUNGER SLIDING SHOES

摘要

A fuel supply pump having a plurality of radially disposed plunger sleeves each containing a pumping plunger (40) reciprocating within the plunger sleeve. The fuel supply pump includes a rotable drive member (32) and a plurality of sliding shoes (50). Each shoe (50) has a first face (100) adjacent a respective plunger driven end and a second face (104) adjacent the drive member. In one variation, each shoe first face includes a socket (102) which the plunger driven end snaps into and is captured by, creating a sliding shoe assembly. A cage (56, 116) couples all of the sliding shoe assemblies. In an other variation, the cage includes apertures (124) which the plunger driven end snaps through, thereby capturing the plunger. As one plunger is actuated by the eccentric member (32) at least one plunger (40) is retracted by the coupling of the cage (56, 116). Also a method of fuel supply pump assembly using sub-assemblies (144) which can be assembled externally to the fuel supply pump body.