Engine and low vibration crankshaft therefor

Details Engine and low vibration crankshaft therefor Engine and low vibration crankshaft therefor

F - Mech Eng,Light,Heat,Weapons

16

C

123/251, 74/287

F16C 3/00 (2006.01) F02B 75/20 (2006.01) F16C 3/06 (2006.01) F16F 15/24 (2006.01) F02B 75/02 (2006.01) F02B 75/18 (2006.01)

Patent

CA 2001547

ENGINE AND LOW VIBRATION CRANKSHAFT THEREFOR Abstract of the Disclosure A low vibration crankshaft has crankarms of decreasing inertia/mass and stiffness as their distance torsional vibration node of the rotating vibration system increases. The mass and stiffness of the crankarms may be varied by changing the lateral width of the arms or by other means. The arrangement provides, in combination with an engine or other reciprocating piston machine, an increased or maximized torsional vibration resonant frequency and resulting lower or minimized angular deflections of the crankshaft in the condition of system resonance.

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