GB768833A - Improvements in or relating to pump-motor combinations - Google Patents

Improvements in or relating to pump-motor combinations

Info

Publication number
GB768833A
GB768833A GB15253A GB15253A GB768833A GB 768833 A GB768833 A GB 768833A GB 15253 A GB15253 A GB 15253A GB 15253 A GB15253 A GB 15253A GB 768833 A GB768833 A GB 768833A
Authority
GB
United Kingdom
Prior art keywords
pump
motor
shaft
sleeve
liquid
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.)
Expired
Application number
GB15253A
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.)
JOHN CODRINGTON MANSEIELD
Hayward Tyler and Co Ltd
Original Assignee
JOHN CODRINGTON MANSEIELD
Hayward Tyler and Co 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 JOHN CODRINGTON MANSEIELD, Hayward Tyler and Co Ltd filed Critical JOHN CODRINGTON MANSEIELD
Priority to GB15253A priority Critical patent/GB768833A/en
Publication of GB768833A publication Critical patent/GB768833A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
    • H02K5/128—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas using air-gap sleeves or air-gap discs

Landscapes

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

Abstract

768,833. Centrifugal pumps. HAYWARD TYLER & CO., Ltd., NICOL, K., and MANSFIELD, J. C. Jan. 4, 1954 [Jan. 2, 1953], No. 152/53. Class 110 (1). [Also in Group XXXV] In a pump and motor combination of the kind in which the pump and motor are mounted on a common shaft and are enclosed in what is essentially a common housing throughout which the liquid being pumped has free access, the sole way of liquid communication from the pump to the motor is by way of a flame-proof gap between a surface which rotates with the shaft and a surface which is stationary with the common casing. The pump unit, which is suitable for pumping inflammable liquids such as petroleum products, comprises a centrifugal pump impeller 1 and a driving motor 2, on a common shaft 3. Jourmal bearings 5, 6 and thrust bearings 8, 10 are of the tilting-pad type and may be in accordance with Specification 701,508, [Group XXXIV]. The motor 2 is immersed in the liquid being pumped, the sole way of liquid communication between the pump and motor being through a flame-proof clearance 15 between a sleeve 13 fast on the shaft 3 and a stationary sleeve 14. Both sleeves are of non-sparking material. The clearance 15 can be measured by means of a feeler gauge inserted, after removal of screw plugs 21, through each of three tangential holes 20. For this purpose, gaps 16 and 19 are provided in the sleeve 14 and a surrounding sleeve 17, respectively. A disc 7 carried by the shaft 3 for co-operation with the two thrust bearings 8, 10, has radial holes 24 which reach into the shaft to join an axial bore 23. The disc 7 thus forms an auxiliary impeller which circulates liquid from the casing 4 through an external cooler 22. The pressure at the inlet 28 to the auxiliary impeller is maintained the same as the pump delivery pressure by means of a communicating pipe 34 which is connected to a bore 33 leading to an annular recess 32 in the inner periphery of sleeve 14. Cooling water is passed through an annular cavity 35. Gas venting means may be provided as described in Specification 544,930.
GB15253A 1953-01-02 1953-01-02 Improvements in or relating to pump-motor combinations Expired GB768833A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB15253A GB768833A (en) 1953-01-02 1953-01-02 Improvements in or relating to pump-motor combinations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB15253A GB768833A (en) 1953-01-02 1953-01-02 Improvements in or relating to pump-motor combinations

Publications (1)

Publication Number Publication Date
GB768833A true GB768833A (en) 1957-02-20

Family

ID=9699330

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15253A Expired GB768833A (en) 1953-01-02 1953-01-02 Improvements in or relating to pump-motor combinations

Country Status (1)

Country Link
GB (1) GB768833A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2431204A (en) * 2005-10-14 2007-04-18 Weatherford Lamb Pump assembly

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2431204A (en) * 2005-10-14 2007-04-18 Weatherford Lamb Pump assembly
GB2431204B (en) * 2005-10-14 2011-06-15 Weatherford Lamb Surface pump assembly
US9366240B2 (en) 2005-10-14 2016-06-14 Oilfield Equipment Development Center Limited Surface pump assembly
US10280930B2 (en) 2005-10-14 2019-05-07 Oilfield Equipment Development Center Limited Surface pump assembly

Similar Documents

Publication Publication Date Title
US2809590A (en) Electric motor driven pump
GB1430308A (en) Rotatable assembly
US5256038A (en) Canned motor pump
GB1240171A (en) Improvements in or relating to pumps and agitators
US2470563A (en) Pump
GB1127310A (en) Centrifugal pump having thrust balancing means
GB969153A (en) Improvements in motors having an air-gap jacket in particular for central heating accelerators and other like applications
US2768584A (en) Pump-motor combinations
US2635547A (en) Axial gap electric motor-driven pump
US2407987A (en) Multistage centrifugal pump
GB1079631A (en) Motor driven pumps
US3115839A (en) Electric motor driven pump
US3132595A (en) Axial flow pump
US2472010A (en) Hermetically sealed power transmitting mechanism
GB2023739A (en) Rotary positive-displacement fluid-machines
GB768833A (en) Improvements in or relating to pump-motor combinations
GB914912A (en) Improvements in or relating to glandless centrifugal pumps for liquids with built-inelectric motor
US3103176A (en) Turbine-driven centrifugal pump
GB1141205A (en) Improvements in or relating to electric motor/pump units
GB1349903A (en) High pressure centrifugal pump assembly
US3075469A (en) Motor construction
GB1040953A (en) Dry demounting of bearings of glandless pump without emptying the pump circuit
GB773827A (en) Improvements in motor driven pumps
GB1204165A (en) Improvements in or relating to motor-driven impeller pumps
GB768871A (en) Improvements in motor driven pumps