Linkage arms for minimizing piston wobble

Details Linkage arms for minimizing piston wobble Linkage arms for minimizing piston wobble

1991-12-23

1992-07-28

Okonsky, David A.

Internal-combustion engines

Transmission mechanism from piston

F02B 7532

Patent

active

051333147

ABSTRACT:
In an internal combustion engine, a piston is prevented from wobbling about its wrist pin by including parallel linkage arms between the piston and a follower gear on the crankpin of the connecting rod. The follower gear orbits a stationary gear, but does not rotate. The follower gear is coupled to the stationary gear by intermediate gears. The stationary gear is coupled to the engine block so that it does not rotate about the main journal of the crankshaft. Rotation of the follower gear is prevented by choosing gear ratios such that their product is one half. In an alternative embodiment, the linkage arms between the follower gear and the piston comprise shafts with a bevel pinion gear at each end. One end engages the follower gear while the other end engages a sector gear concentric with the wrist pin.

REFERENCES:
patent: 455029 (1891-06-01), Westinghouse
patent: 760333 (1904-05-01), Hardenbrook et al.
patent: 1213315 (1917-01-01), Well
patent: 1651330 (1927-11-01), Holmes
patent: 1655338 (1928-01-01), Roe
patent: 2029169 (1936-01-01), Hironaka
patent: 2395911 (1946-03-01), Schoenfeld
patent: 4807577 (1989-02-01), Koutsoupidis

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