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.

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