Engine vibration elimination system and variable stroke...

Details Engine vibration elimination system and variable stroke... Engine vibration elimination system and variable stroke...

2011-03-15

2011-03-15

Cuff, Michael (Department: 3783)

Internal-combustion engines

Vibration compensating device

C123S192200, C123S0480AA, C123S0480AA, C123S0780AA

Reexamination Certificate

active

07905210

ABSTRACT:
Secondary vibration generated accompanying reciprocation of a piston (21) of a multi-link variable compression ratio engine (E) can be eliminated effectively, even when the direction of the secondary vibration is inclined relative to a cylinder axis (L1), by inclining the direction (shown by arrow) of an excitation force generated by a secondary balancer system (43) so that it coincides with the direction of the secondary vibration. The secondary balancer system (43) is formed by supporting balancer weights (44a, 45a) on a pair of balancer shafts (44, 45) rotating in directions opposite to each other, and by displacing the phases of these balancer weights (44a, 45a) the direction of the excitation force generated can be inclined so as to coincide with the direction of secondary vibration of the engine (E).

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