Evaluation of the Oldham-Coupling Type Balancer on a 2.5 Liter In-Line Four-Cylinder Engine 840456

This paper describes the effectiveness of an Oldham-coupling type balancer in reducing the second-harmonic inertia shaking force in a 2.5 liter in-line four-cylinder engine. It is shown that the prototype Oldham-coupling type balancer reduced the vertical shaking by 75-85% over the speed range from 1 200 to 4 200 r/min. The power consumption by the balancer was measured to be approximately 0.4 kW at 2 400 r/min and 1.25 kW at 4 200 r/min.


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