Internal-combustion engine having balancing shafts

Details Internal-combustion engine having balancing shafts Internal-combustion engine having balancing shafts

2005-05-10

2005-05-10

Kamen, Noah P. (Department: 3747)

Internal-combustion engines

Vibration compensating device

Balancing arrangement

C123S054400

Reexamination Certificate

active

06889650

ABSTRACT:
A first balancing shaft and a second balancing shaft are provided for an internal-combustion engine having four cylinders in a V-arrangement. The free inertial forces of the second order are reduced by way of the balancing shafts. The second balancing shaft is arranged in the point of intersection of the cylinder Vs above the crankshaft. The rotation center points of the two balancing shafts and of the crankshaft are situated on a perpendicular axis of symmetry which extends through the point of intersection.

REFERENCES:
patent: 4028963 (1977-06-01), Nakamura et al.
patent: 4683849 (1987-08-01), Brown
patent: 5657728 (1997-08-01), Diggs
patent: 6253725 (2001-07-01), Groddeck et al.
patent: 20030000495 (2003-01-01), Groddeck et al.
patent: 42 38 148 (1994-05-01), None
patent: 198 55 562 (2000-05-01), None
patent: 100 33 416 (2001-06-01), None
patent: 06213278 (1994-08-01), None

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