JPS5669487A - Water supplying unit for bearing - Google Patents

Water supplying unit for bearing

Info

Publication number
JPS5669487A
JPS5669487A JP14551979A JP14551979A JPS5669487A JP S5669487 A JPS5669487 A JP S5669487A JP 14551979 A JP14551979 A JP 14551979A JP 14551979 A JP14551979 A JP 14551979A JP S5669487 A JPS5669487 A JP S5669487A
Authority
JP
Japan
Prior art keywords
pump
feed water
stops
hydraulic
bearing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP14551979A
Other languages
Japanese (ja)
Inventor
Shoji Sato
Kinzo Tominaga
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Hitachi Kizai Inc
Original Assignee
Hitachi Ltd
Hitachi Kizai Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd, Hitachi Kizai Inc filed Critical Hitachi Ltd
Priority to JP14551979A priority Critical patent/JPS5669487A/en
Publication of JPS5669487A publication Critical patent/JPS5669487A/en
Pending legal-status Critical Current

Links

Landscapes

  • Details Of Reciprocating Pumps (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Abstract

PURPOSE: To prevent a rapid lowering of a feed water pressure until a hydraulic machinery stops due to a power failure to stop the machinery safely by mounting a fly wheel on a feed water pump which is used to feed water to a hydraulic-lubricating bearing of the pump.
CONSTITUTION: A bearing 2, which bears a main shaft 1 of a hydraulic machinery, is pressurized by water fed by a pump 16 to control vibration of the machinery during its rotation. As a motor 20 to drive the pump 16 stops at the moment that the power failure occurs because the force of inertia of the motor 20 is small in general, a flywheel 21 is mounted to make up for the power to extend the time until the pump stops. When hydraulically pressurizing a static pressure type bearing by the pump, the flywheel 21 is mounted on the feed water pump 16 to prevent rapid lowering in the pressure when the feed water pump 16 stops. By such constitution, the hydraulic machinary can be safely stopped without giving abnormal vibrations to the shaft 1.
COPYRIGHT: (C)1981,JPO&Japio
JP14551979A 1979-11-12 1979-11-12 Water supplying unit for bearing Pending JPS5669487A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14551979A JPS5669487A (en) 1979-11-12 1979-11-12 Water supplying unit for bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14551979A JPS5669487A (en) 1979-11-12 1979-11-12 Water supplying unit for bearing

Publications (1)

Publication Number Publication Date
JPS5669487A true JPS5669487A (en) 1981-06-10

Family

ID=15387098

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14551979A Pending JPS5669487A (en) 1979-11-12 1979-11-12 Water supplying unit for bearing

Country Status (1)

Country Link
JP (1) JPS5669487A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008221512A (en) * 2007-03-09 2008-09-25 Sun-Star Stationery Co Ltd Duplex writing utensil

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008221512A (en) * 2007-03-09 2008-09-25 Sun-Star Stationery Co Ltd Duplex writing utensil

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