Connecting rod journals and crankshaft spider bearing in an...

Details Connecting rod journals and crankshaft spider bearing in an... Connecting rod journals and crankshaft spider bearing in an...

2011-03-08

2011-03-08

Nguyen, Hoang M (Department: 3748)

Power plants

Motive fluid energized by externally applied heat

Power system involving change of state

C092S012100, C092S058000, C092S072000

Reexamination Certificate

active

07900454

ABSTRACT:
In an engine having a crankshaft driven by reciprocating pistons in an arrangement of cylinders, a spider bearing is fixed to a crankshaft journal that is offset from the central axis of the crankshaft. Each piston is drivingly linked to the spider bearing by a connecting rod. Circular links at the opposite ends of each connecting rod are fitted with an inner bearing ring to provide low friction movement of the ends of each connecting rod relative to the piston and the spider bearing. Hubs equally spaced about the central axis of the spider bearing enable connection of the rod links to the spider bearing. In a preferred embodiment, the spider bearing is formed of a bearing material that surrounds the outer surface of the connecting rod links which, combined with the inner bearing rings, provides a double-backed bearing for carrying the piston load.

REFERENCES:
patent: 2264484 (1941-12-01), Sharpe et al.
patent: 4194404 (1980-03-01), Jager et al.

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