Wrist pin for piston and connecting rod assembly

Details Wrist pin for piston and connecting rod assembly Wrist pin for piston and connecting rod assembly

1995-10-06

1996-08-27

Denion, Thomas E.

Expansible chamber devices

Piston

With separable means for pivotally mounting connecting rod...

92208, 94579E, F16J 114

Patent

active

055490344

ABSTRACT:
Metallic piston, wrist pin and connecting rod which normally do not fit together can be joined with one selected component being heated to effect the expansion thereof while another selected component is chilled to effect its contraction. With the heat differentials effecting relative size change the components can be loosely put together in a preassembly. The components in the loose preassembly are then returned to ambient temperature and to specification size whereby a central journal of the wrist pin is trapped between the piston pin bosses in one embodiment and the connecting rod is trapped by the shoulders of a reduced diameter pin journal in a second embodiment to form permanent piston, connecting rod and wrist pin assemblies.

REFERENCES:
patent: 1489111 (1924-04-01), Blackshear
patent: 1491155 (1924-04-01), McKone
patent: 1684862 (1928-09-01), Gay
patent: 1772187 (1930-08-01), Manning
patent: 2043013 (1936-06-01), Shoemaker
patent: 2100525 (1937-11-01), Sorensen
patent: 2851319 (1958-09-01), Pitner
patent: 3479929 (1969-11-01), Fangman
patent: 3943908 (1976-03-01), Kubis et al.
patent: 3971355 (1976-07-01), Kottmann
patent: 5367945 (1994-11-01), Halka et al.
Auto Service and Repair, M. W. Stockel et al., The Goodheart-Willcox Company, Inc., p. 280, c 1978.

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