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    • 9. 发明授权
    • Torsional vibration attenuating structure in compressor
    • 压缩机扭转振动衰减结构
    • US06247902B1
    • 2001-06-19
    • US09666201
    • 2000-09-21
    • Masakazu ObayashiNaofumi KimuraAkira NakamotoKazuhiro NomuraHiroyuki Gennami
    • Masakazu ObayashiNaofumi KimuraAkira NakamotoKazuhiro NomuraHiroyuki Gennami
    • F04B4900
    • F04B27/0895F04B27/1036F04B39/0088
    • A mechanism for attenuating torsional vibration in a compressor is described. The compressor includes a swash plate secured to a drive shaft and pistons coupled to the swash plate. Compression of refrigerant gas by the pistons generates torsional vibrations of the drive shaft. The rear end of the drive shaft is coupled to a damper for attenuating torsional vibrations. The damper includes a frictional plate secured to the rear end of the drive shaft, a weight rotatably fitted about the drive shaft, and a coil spring. The coil spring elastically presses the weight against the frictional plate and elastically couples the weight with the drive shaft. When the drive shaft torsionally vibrates, the weight contacts the frictional plate and is vibrated about the axis of the drive shaft by the coil spring. As a result, energy of the torsional vibrations is consumed and the vibrations are attenuated. Further embodiments show similar dampers attached to the exterior of the compressor.
    • 描述了用于衰减压缩机中的扭转振动的机构。 压缩机包括固定到驱动轴的旋转斜盘和联接到斜盘的活塞。 活塞对制冷剂气体的压缩产生驱动轴的扭转振动。 驱动轴的后端连接到用于衰减扭转振动的阻尼器。 阻尼器包括固定到驱动轴的后端的摩擦板,围绕驱动轴可旋转地配合的重量和螺旋弹簧。 螺旋弹簧将重物弹性地压在摩擦板上并将重物与驱动轴弹性连接。 当驱动轴扭转时,重物接触摩擦板,并通过螺旋弹簧绕驱动轴的轴线振动。 结果,扭转振动的能量被消耗并且振动被衰减。 另外的实施例示出了附接到压缩机外部的类似的阻尼器。