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公开(公告)号:EP0094075A2
公开(公告)日:1983-11-16
申请号:EP83104548.9
申请日:1983-05-09
申请人: HITACHI, LTD.
发明人: Tomioka, Shunzoo , Nakano, Masaaki , Okano, Kinpei , Shimizu, Kousaku , Yoda, Hiroaki Hitachitsukuba-House 2-203
IPC分类号: F04D29/04
CPC分类号: F04D29/047 , F04D29/049
摘要: A vertical motor pump including an upper bearing and a lower bearing on the motor side for jouraling a rotary shaft (3) for rotation at an upper portion and a lower portion respectively of a rotor (91), at least one of the upper bearing and the lower bearing is constituted by a ball bearing (4A). The vertical motor pump further includes a hydrostatic lubricated bearing system (51, 51') for journaling the rotary shaft (3) besides the ball bearing (4A), for bearing a radial thrust applied to the rotary shaft (3) during operation.
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公开(公告)号:EP0094075A3
公开(公告)日:1984-08-22
申请号:EP83104548
申请日:1983-05-09
申请人: HITACHI, LTD.
发明人: Tomioka, Shunzoo , Nakano, Masaaki , Okano, Kinpei , Shimizu, Kousaku , Yoda, Hiroaki Hitachitsukuba-House 2-203
IPC分类号: F04D29/04
CPC分类号: F04D29/047 , F04D29/049
摘要: A vertical motor pump including an upper bearing and a lower bearing on the motor side for jouraling a rotary shaft (3) for rotation at an upper portion and a lower portion respectively of a rotor (91), at least one of the upper bearing and the lower bearing is constituted by a ball bearing (4A). The vertical motor pump further includes a hydrostatic lubricated bearing system (51, 51') for journaling the rotary shaft (3) besides the ball bearing (4A), for bearing a radial thrust applied to the rotary shaft (3) during operation.
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公开(公告)号:EP0094075B1
公开(公告)日:1988-08-31
申请号:EP83104548.9
申请日:1983-05-09
申请人: HITACHI, LTD.
发明人: Tomioka, Shunzoo , Nakano, Masaaki , Okano, Kinpei , Shimizu, Kousaku , Yoda, Hiroaki Hitachitsukuba-House 2-203
IPC分类号: F04D29/04
CPC分类号: F04D29/047 , F04D29/049
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