Secondary balancer of vertical engine of outboard motor

Details Secondary balancer of vertical engine of outboard motor Secondary balancer of vertical engine of outboard motor

2005-02-01

2005-02-01

Kamen, Noah P. (Department: 3747)

Internal-combustion engines

Vibration compensating device

Balancing arrangement

C123S184570

Reexamination Certificate

active

06848411

ABSTRACT:
A secondary balancer is used for an outboard motor vertical in-line engine which includes a crankcase, a cylinder block and a cylinder head, which are arranged in this order from a front side of the engine (i.e., hull side of an outboard motor), a crankshaft placed in the engine in a substantially vertical direction, an intake pipe placed on one side of the engine, a throttle body and an intake silencer which are disposed on a front side of the crankcase, and a balancing device including a primary balancer and a second balancer. The secondary balancer includes a pair of balancer shafts disposed in a space formed between the crankcase and the intake silencer.

REFERENCES:
patent: 5309877 (1994-05-01), Shigedomi et al.
patent: 6439188 (2002-08-01), Davis

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