GB1045205A - Improvements in or relating to centrifugal pumps - Google Patents

Improvements in or relating to centrifugal pumps

Info

Publication number
GB1045205A
GB1045205A GB594764A GB594764A GB1045205A GB 1045205 A GB1045205 A GB 1045205A GB 594764 A GB594764 A GB 594764A GB 594764 A GB594764 A GB 594764A GB 1045205 A GB1045205 A GB 1045205A
Authority
GB
United Kingdom
Prior art keywords
motor
housing
shaft
impeller
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.)
Expired
Application number
GB594764A
Inventor
Walter Gordon Lyon Nicoll
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.)
LYON NICOLL Ltd
Original Assignee
LYON NICOLL 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
Priority to BE613833D priority Critical patent/BE613833A/xx
Application filed by LYON NICOLL Ltd filed Critical LYON NICOLL Ltd
Priority to GB594764A priority patent/GB1045205A/en
Priority to BE659492D priority patent/BE659492A/fr
Priority to NL6501724A priority patent/NL6501724A/xx
Priority to CH185065A priority patent/CH417342A/en
Publication of GB1045205A publication Critical patent/GB1045205A/en
Expired 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
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/042—Axially shiftable rotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/0606—Canned motor pumps
    • F04D13/0626—Details of the can
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/0606—Canned motor pumps
    • F04D13/0633—Details of the bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0027—Varying behaviour or the very pump
    • F04D15/0033—By-passing by increasing clearance between impeller and its casing
    • 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
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/041—Axial thrust balancing
    • F04D29/0413—Axial thrust balancing hydrostatic; hydrodynamic thrust bearings

Landscapes

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

Abstract

1,045,205. Centrifugal pumps. LYON NICOLL Ltd. Feb. 12, 1964, No. 5947/64. Heading F1C. [Also in Division H2] In a motor-driven circulating pump assembly of the centrifugal type having an impeller 8 mounted in a housing 1 on an axially-shiftable shaft 9 directly driven by the motor, the inlet side of the pump faces away from the motor towards a single adjustable thrust bearing 15 against which the shaft is pressed by the pressure generated on the outlet side of the impeller during operation, so that adjustment of the thrust bearing alters the axial position of the shaft relative to the impeller housing and thus varies the pump output by varying the leakage gap between the impeller disc 30 and an adjacent wall 31. The thrust bearing 15 may be of any bearing metal or polytetrafluoroethylene. The motor may be an electric induction motor of the canned rotor type shown, or it may be of the commutator-type in which case separate motor and pump shafts are splined together. Passages 22 covered by a mesh 23 permit cooling water to enter the motor housing 19. The end 24 of the housing 19 may be detachable. In an alternative embodiment, Fig. 2 (not shown), the shaft bearing 10 and the central portion of the plate 2 are omitted, and a bearing arranged in the end 24 of the motor housing 19 supports an extension of the shaft 9.
GB594764A 1964-02-11 1964-02-12 Improvements in or relating to centrifugal pumps Expired GB1045205A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE613833D BE613833A (en) 1964-02-11
GB594764A GB1045205A (en) 1964-02-12 1964-02-12 Improvements in or relating to centrifugal pumps
BE659492D BE659492A (en) 1964-02-11 1965-02-10
NL6501724A NL6501724A (en) 1964-02-11 1965-02-11
CH185065A CH417342A (en) 1964-02-11 1965-02-11 Centrifugal circulation pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB594764A GB1045205A (en) 1964-02-12 1964-02-12 Improvements in or relating to centrifugal pumps

Publications (1)

Publication Number Publication Date
GB1045205A true GB1045205A (en) 1966-10-12

Family

ID=9805607

Family Applications (1)

Application Number Title Priority Date Filing Date
GB594764A Expired GB1045205A (en) 1964-02-11 1964-02-12 Improvements in or relating to centrifugal pumps

Country Status (1)

Country Link
GB (1) GB1045205A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110319022A (en) * 2019-06-06 2019-10-11 浙江理工大学 The adjustable experiment test device in centrifugal pump front and rear cover plate gap

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110319022A (en) * 2019-06-06 2019-10-11 浙江理工大学 The adjustable experiment test device in centrifugal pump front and rear cover plate gap

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