Internal-combustion engines – Vibration compensating device – Balancing arrangement
Patent
1993-05-03
1994-11-22
Kamen, Noah P.
Internal-combustion engines
Vibration compensating device
Balancing arrangement
123 73D, F02B 7506
Patent
active
053658990
ABSTRACT:
A two-stroke engine having a crankcase (10) with a crankshaft (11), a cylinder (13) with a piston (14) movable therein, and at least one passage (18) for transferring an air/fuel mixture from the crankcase to the cylinder. The engine is provided with at least one balance wheel (20) driven by the crankshaft and adapted to counteract vibrations caused by the movable parts of the engine. The wheel is provided with an axial opening (24) and adapted to cooperate with a sealing surface (23) surrounding the opening of the passage into the crankcase in such way that said passage (18) is alternately opened and closed by the balance wheel during rotation of the engine.
Aktiebolaget Electrolux
Kamen Noah P.
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