Balance shaft for a reciprocating piston engine

Details Balance shaft for a reciprocating piston engine Balance shaft for a reciprocating piston engine

2003-11-12

2009-02-17

Cronin, Stephen K (Department: 3747)

Internal-combustion engines

Vibration compensating device

Balancing arrangement

C464S180000

Reexamination Certificate

active

07490585

ABSTRACT:
In a compensating shaft for reciprocating piston engines with at least one compensating weight (22) connected torsionally elastically to the compensating shaft (21), effective noise reduction is achieved by using an elastic element, preferably one (25) made of plastic of elasticity which is graduated in the circumferential direction, the hard central part (26) having a connection (15) to the compensating shaft (11) which is firm in the circumferential direction, and the soft part (31) bearing against the compensating weight (22).

REFERENCES:
patent: 3667317 (1972-06-01), Hillingrathner
patent: 3680608 (1972-08-01), Emmerich et al.
patent: 4282836 (1981-08-01), Fox et al.
patent: 4510894 (1985-04-01), Williams
patent: 4953517 (1990-09-01), McGovern et al.
patent: 6854358 (2005-02-01), Stuckler
patent: 103 52 775 (2004-06-01), None
patent: 2000-283238 (2000-10-01), None
patent: WO 01/29447 (2001-04-01), None

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