Reduction of crankshaft noise from an internal combustion engine

Details Reduction of crankshaft noise from an internal combustion engine Reduction of crankshaft noise from an internal combustion engine

1984-03-23

1985-10-01

Feinberg, Craig R.

Internal-combustion engines

Frame construction

Horizontal cylinder

474161, F16H 5530

Patent

active

045439249

ABSTRACT:
Crankshaft noise from an internal combustion engine is reduced by the known step of using a crankshaft damper pulley 10 on the front end of the crankshaft. This damper pulley has a damper ring 16 interposed between the hub and the rim of the pulley. Noise is further reduced by fitting a plug 20 to the front of the engine to cover the area within the ring 16 of the damper pulley. The plug 20 is preferably of neoprene rubber.

REFERENCES:
patent: 1525717 (1925-02-01), Butz
patent: 1646897 (1925-11-01), Burns
patent: 2150456 (1939-03-01), Perrine
patent: 2724377 (1955-11-01), Nallinger
patent: 2911962 (1959-11-01), McRae
patent: 2945482 (1960-07-01), McRae
patent: 4332574 (1982-06-01), Aoyama et al.
patent: 4348199 (1982-09-01), Oonuma et al.
patent: 4467753 (1984-08-01), Lange

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