Device for locking rotation of an eccentric bearing of a compres

Details Device for locking rotation of an eccentric bearing of a compres Device for locking rotation of an eccentric bearing of a compres

1988-06-01

1989-05-16

Footland, Lenard A.

Bearings

Rotary bearing

Plain bearing

384373, 123 48R, F16C 2502

Patent

active

048305170

ABSTRACT:
A device for locking rotation of an eccentric bearing used in a compression ratio changing device for an internal combustion engine where rotation of the eccentric bearing interposed between a connecting rod and a piston-pin changes the compression ratio. The device includes at least two groups of lock-pins, lock-pin holes formed in the connecting rod and lock holes formed in the eccentric bearing. The eccentric bearing is always locked in rotation relative to the connecting rod except when the compression ratio is exchanged. The locking of the rotation of the eccentric bearing suppresses slap noises of the piston and abrasion of the sliding surfaces of the device and improves durability of the compression ratio changing device.

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