| 摘要 |
PCT No. PCT/SE89/00048 Sec. 371 Date Aug. 5, 1991 Sec. 102(e) Date Aug. 5, 1991 PCT Filed Feb. 7, 1989 PCT Pub. No. WO90/09522 PCT Pub. Date Aug. 23, 1990.An assembly or coupling arrangement for an impeller associated with a drive shaft. The impeller is supported by the drive shaft by a radial bearing having a small radial clearance. The bearing allows relative rotary motion between the impeller and shaft. In addition, an elastic or resilient element is mounted between the shaft and the impeller to transmit the torque from the shaft to the impeller while preventing or reducing transmission of torque pulsations. |
