Calculation and field test show that,by using this auxiliary balancing device, both the peak value and the fluctuation of the crank shaft to...

• 理论计算及现场试验结果表明，该平衡装置具有降低曲柄轴扭矩峰值、减少曲柄轴扭矩波动及降低抽油机耗电等优点。