公开(公告)号：US20070147985A1

公开(公告)日：2007-06-28

申请号：US11566428

申请日：2006-12-04

Applicant: Toshio Takahashi ,  Yutaka Hirata ,  Kazuo Kobayashi ,  Kazuaki Kurihara ,  Kentaro Oda

Inventor： Toshio Takahashi ,  Yutaka Hirata ,  Kazuo Kobayashi ,  Kazuaki Kurihara ,  Kentaro Oda

IPC: F01D3/04

CPC classification number: F04D29/059 ,  F04D17/12 ,  F04D25/16 ,  F25B1/053 ,  F25B1/10 ,  F25B2400/13 ,  F25B2400/23

Abstract: A first centrifugal impeller and a second centrifugal impeller are arranged in such an orientation that back sides of the first centrifugal impeller and the second centrifugal impeller face to each other. Bearings are cylindrical roller bearings and a thrust bearing. The cylindrical roller bearings are arranged at two axially spaced supporting positions respectively, and support a radial load applied to the rotating shaft. The thrust bearing supports a thrust load applied to the rotating shaft.

Abstract translation: 以第一离心式叶轮和第二离心式叶轮的背面彼此面对的方式配置第一离心式叶轮和第二离心式叶轮。 轴承是圆柱滚子轴承和推力轴承。 圆柱滚子轴承分别布置在两个轴向间隔的支撑位置，并且支撑施加到旋转轴的径向载荷。 推力轴承支承施加在旋转轴上的推力。

公开(公告)号：US07690887B2

公开(公告)日：2010-04-06

申请号：US11566428

申请日：2006-12-04

Applicant: Toshio Takahashi ,  Yutaka Hirata ,  Kazuo Kobayashi ,  Kazuaki Kurihara ,  Kentaro Oda

Inventor： Toshio Takahashi ,  Yutaka Hirata ,  Kazuo Kobayashi ,  Kazuaki Kurihara ,  Kentaro Oda

IPC: F01D3/04

CPC classification number: F04D29/059 ,  F04D17/12 ,  F04D25/16 ,  F25B1/053 ,  F25B1/10 ,  F25B2400/13 ,  F25B2400/23

Abstract: A first centrifugal impeller and a second centrifugal impeller are arranged in such an orientation that back sides of the first centrifugal impeller and the second centrifugal impeller face to each other. Bearings are cylindrical roller bearings and a thrust bearing. The cylindrical roller bearings are arranged at two axially spaced supporting positions respectively, and support a radial load applied to the rotating shaft. The thrust bearing supports a thrust load applied to the rotating shaft.

Abstract translation: 以第一离心式叶轮和第二离心式叶轮的背面彼此面对的方式配置第一离心式叶轮和第二离心式叶轮。 轴承是圆柱滚子轴承和推力轴承。 圆柱滚子轴承分别布置在两个轴向间隔的支撑位置，并且支撑施加到旋转轴的径向载荷。 推力轴承支承施加在旋转轴上的推力。