JPS54100503A - Pump - Google Patents

Pump

Info

Publication number
JPS54100503A
JPS54100503A JP621178A JP621178A JPS54100503A JP S54100503 A JPS54100503 A JP S54100503A JP 621178 A JP621178 A JP 621178A JP 621178 A JP621178 A JP 621178A JP S54100503 A JPS54100503 A JP S54100503A
Authority
JP
Japan
Prior art keywords
impeller
bearing
water
pump
casing
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
JP621178A
Other languages
Japanese (ja)
Inventor
Kengo Hasegawa
Hiroshi Morimoto
Shiro Ando
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 JP621178A priority Critical patent/JPS54100503A/en
Publication of JPS54100503A publication Critical patent/JPS54100503A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/06—Lubrication
    • F04D29/061—Lubrication especially adapted for liquid pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

PURPOSE: To reduce the axial length of a pump and improve its pumping performance, by fitting water lubricated bearing between a shaft seal and an impeller.
CONSTITUTION: A water-lubricated bearing 19 is fitted between an impeller 1 and a shaft seal 8 which water-seals a rotary shaft 6 penetrating a casing 2 to connect with the impeller 1. When the pump begins to be driven, water pumped up from a reflux passage 22 forms a thin film between the rotary shaft 6 and a sliding member 21 composing the bearing 19 to provide the sufficient bearing effect, and fine mud or oxides entering the bearing 19 is exhausted in a impeller chamber 3 by means of the pumping action of a spiral groove 20. Since the clearance between the impeller 1 and the casing 2 can be reduced, the axial length of the pump can be reduced, while its pumping performance is improved.
COPYRIGHT: (C)1979,JPO&Japio
JP621178A 1978-01-25 1978-01-25 Pump Pending JPS54100503A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP621178A JPS54100503A (en) 1978-01-25 1978-01-25 Pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP621178A JPS54100503A (en) 1978-01-25 1978-01-25 Pump

Publications (1)

Publication Number Publication Date
JPS54100503A true JPS54100503A (en) 1979-08-08

Family

ID=11632184

Family Applications (1)

Application Number Title Priority Date Filing Date
JP621178A Pending JPS54100503A (en) 1978-01-25 1978-01-25 Pump

Country Status (1)

Country Link
JP (1) JPS54100503A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5125792A (en) * 1990-09-14 1992-06-30 Itt Corporation Pump stuffing box with heat exchange device
CN109072927A (en) * 2016-03-22 2018-12-21 克劳斯联合有限两合公司 Magnetic force driving pump
CN110848260A (en) * 2019-11-18 2020-02-28 上海凯士比泵有限公司 Self-lubricating system for sliding bearing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5125792A (en) * 1990-09-14 1992-06-30 Itt Corporation Pump stuffing box with heat exchange device
CN109072927A (en) * 2016-03-22 2018-12-21 克劳斯联合有限两合公司 Magnetic force driving pump
CN110848260A (en) * 2019-11-18 2020-02-28 上海凯士比泵有限公司 Self-lubricating system for sliding bearing

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