Pump with ring retained floating wrist pins and connecting rods

Details Pump with ring retained floating wrist pins and connecting rods Pump with ring retained floating wrist pins and connecting rods

1983-12-23

1985-02-12

Freeh, William L.

Expansible chamber devices

Piston

With separable means for pivotally mounting connecting rod...

417273, 417534, 92129, F16J 114, F04B 104, F04B 3914

Patent

active

044983727

ABSTRACT:
Improved multi-cylinder pumps wherein a plurality of co-planar positioned connecting rods are radially disposed about a crankshaft and wherein a plurality of generally cylindrical spool-like wrist pins are rotatively coupled to the connecting rods. The improvement comprises an assembly wherein the wrist pins have opposed end regions bordering a smaller diameter central region that contains one or more ring receiving grooves and which wrist pins are mountable in overlapping relation to retainer ring containing grooves formed in the connecting rods. Upon mounting retainer rings in the connecting rod grooves and inserting and rotatively locking the wrist pins in the connecting rods, the connecting rods, wrist pins and retainer rings are integrally locked together in radially extending relation.

REFERENCES:
patent: 3018737 (1962-01-01), Cook et al.
patent: 3367277 (1968-02-01), Andrews et al.
patent: 4381179 (1983-04-01), Pareja

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