CRANKSHAFT ELEMENT AND COMPOSITE CRANKSHAFT Russian patent published in 2013 - IPC F16C3/10 F16C3/12 

FIELD: machine building.

SUBSTANCE: composite crankshaft comprises shaft 1 with gear 2 engaging with, at least, one crankshaft element 4 consisting of two webs 3, 5 with bearing journals 6. Webs 3, 5 are coupled by crank pin 7. Web 3 represents a pinion element. Crankshaft may be composed of a set of elements 4 to interact with one gear 2 or several gears 2 of shaft 1 via said gear web 3. Shaft 1 and bearing pins 6 are furnished with bearings 9. Every element 4 represents an integral part. Every web 3, 5 can be a gear element. Shaft 1 can be provided with, at least, two gears 3 engaging with spaced apart gear webs 3 integrated with said elements 4. Webs 3, 5 may be provided with balance holes 14.

EFFECT: better manufacturability, higher strength and stiffness.

14 cl, 3 dwg