Crankshaft for an internal combustion engine

Details Crankshaft for an internal combustion engine Crankshaft for an internal combustion engine

2005-11-01

2005-11-01

Kamen, Noah P. (Department: 3747)

Internal-combustion engines

Vibration compensating device

C074S603000

Reexamination Certificate

active

06959683

ABSTRACT:
A crankshaft has a helical drive gear formed as one of the crank webs at an end portion thereof. Another crank web outside of the drive gear is made in two parts, an integral balance weight mounting portion and a removable balance weight. In one embodiment, a crankshaft12features a crankshaft body33including a gear24for outputting rotation formed on one side of a crankpin17d. The crankshaft also includes a first balance weight mounting portion30gformed on the other side of the crankpin17dand a first balance weight31gto be mounted to the first balance weight mounting portion30g. The crankshaft body33may be formed with a second balance weight mounting portion30aseparately from the first balance weight mounting portion30g, and a second balance weight31amounted to the second balance weight mounting portion.

REFERENCES:
patent: 3748925 (1973-07-01), Stewart
patent: 58091917 (1983-06-01), None
WO 91/16530, Atkin et al., Oct. 31, 1991.

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