JPS5472502A - Jam eliminating device of balance disc for centrifugal turbo machine - Google Patents

Jam eliminating device of balance disc for centrifugal turbo machine

Info

Publication number
JPS5472502A
JPS5472502A JP13897277A JP13897277A JPS5472502A JP S5472502 A JPS5472502 A JP S5472502A JP 13897277 A JP13897277 A JP 13897277A JP 13897277 A JP13897277 A JP 13897277A JP S5472502 A JPS5472502 A JP S5472502A
Authority
JP
Japan
Prior art keywords
pressure
balance disc
water
chamber
check valve
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
JP13897277A
Other languages
Japanese (ja)
Inventor
Kenichi Kasai
Toshiyoshi Iino
Hiromi Sato
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
Original Assignee
Hitachi Ltd
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 filed Critical Hitachi Ltd
Priority to JP13897277A priority Critical patent/JPS5472502A/en
Publication of JPS5472502A publication Critical patent/JPS5472502A/en
Pending legal-status Critical Current

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  • Control Of Non-Positive-Displacement Pumps (AREA)

Abstract

PURPOSE: To prevent a balance disc from being jammed without sacrificing the efficiency of the machine, by feeding pressure water to a water discharge port made on an intermediate pressure chamber.
CONSTITUTION: A balance seat 10 has a water passage 15 having a circumferential discharge port 14 to communicate an intermediate pressure chamber 11 with the outside. The water passage 15 has a check valve 16 on its way. When pressure water is fed in the water passage 15 from outside prior to the starting of this pump, the check valve 16 is open, pressure in the chamber 11 increases to thrust a shaft 2 rightward. As the pump revolution increases and pressure in the chamber 11 also increases so that the axial thrust is automatically balanced, then the check valve 16 is closed. Thus the balance disc is prevented from jamming without decreasing the efficiency of the machine.
COPYRIGHT: (C)1979,JPO&Japio
JP13897277A 1977-11-21 1977-11-21 Jam eliminating device of balance disc for centrifugal turbo machine Pending JPS5472502A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13897277A JPS5472502A (en) 1977-11-21 1977-11-21 Jam eliminating device of balance disc for centrifugal turbo machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13897277A JPS5472502A (en) 1977-11-21 1977-11-21 Jam eliminating device of balance disc for centrifugal turbo machine

Publications (1)

Publication Number Publication Date
JPS5472502A true JPS5472502A (en) 1979-06-11

Family

ID=15234469

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13897277A Pending JPS5472502A (en) 1977-11-21 1977-11-21 Jam eliminating device of balance disc for centrifugal turbo machine

Country Status (1)

Country Link
JP (1) JPS5472502A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5810195A (en) * 1981-07-10 1983-01-20 Hitachi Ltd Axial thrust balancing apparatus
US5340272A (en) * 1992-08-19 1994-08-23 Bw/Ip International, Inc. Multi-stage centrifugal pump incorporating a sealed thrust bearing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5810195A (en) * 1981-07-10 1983-01-20 Hitachi Ltd Axial thrust balancing apparatus
US5340272A (en) * 1992-08-19 1994-08-23 Bw/Ip International, Inc. Multi-stage centrifugal pump incorporating a sealed thrust bearing

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