GB9015047D0 - Multi-stage centrifugal pumps - Google Patents

Multi-stage centrifugal pumps

Info

Publication number
GB9015047D0
GB9015047D0 GB909015047A GB9015047A GB9015047D0 GB 9015047 D0 GB9015047 D0 GB 9015047D0 GB 909015047 A GB909015047 A GB 909015047A GB 9015047 A GB9015047 A GB 9015047A GB 9015047 D0 GB9015047 D0 GB 9015047D0
Authority
GB
United Kingdom
Prior art keywords
bushing
ring
casing
pin
shear
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
GB909015047A
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.)
Clyde Union DB Ltd
Original Assignee
David Brown Engineering 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 David Brown Engineering Ltd filed Critical David Brown Engineering Ltd
Priority to GB909015047A priority Critical patent/GB9015047D0/en
Publication of GB9015047D0 publication Critical patent/GB9015047D0/en
Priority to DE69102357T priority patent/DE69102357T2/en
Priority to ES91305692T priority patent/ES2057773T3/en
Priority to EP91305692A priority patent/EP0466350B1/en
Priority to AT91305692T priority patent/ATE106994T1/en
Priority to CA002046465A priority patent/CA2046465C/en
Priority to US07/976,205 priority patent/US5232342A/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
    • F04D29/08—Sealings
    • F04D29/16—Sealings between pressure and suction sides
    • F04D29/165—Sealings between pressure and suction sides especially adapted for liquid pumps
    • F04D29/167—Sealings between pressure and suction sides especially adapted for liquid pumps of a centrifugal flow wheel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D1/06—Multi-stage pumps

Landscapes

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

Abstract

A multi-stage centrifugal pump with an axially split casing (10) and a number of impellers (14) carried by a drive shaft (12) has inter-stage bushings (24) and rings (22) for sealing each side of each impeller. Each bushing (24) or ring (22) is conventionally prevented from rotating by a radial pin protruding from the lower half of the casing (10) into an axial slot in the periphery of the bushing or ring. The pin is necessarily small and is liable to shear, difficult to engage in the slot and, in cases where the bushing (24) or ring (22) is diametrically split, does not allow rotation of the lower half for its removal without lifting the shaft (12). To avoid all these disadvantages, the exposed end (37) of a tangential pin (32) fitted in the casing (10) is flush with the join face (28) of the casing and abuts against a shoulder (44) formed by a recess (38) in the periphery of the bushing (24) or ring (22). This pin (32) can be larger than the known radial pin and is subjected to compression, not shear. <IMAGE>
GB909015047A 1990-07-07 1990-07-07 Multi-stage centrifugal pumps Pending GB9015047D0 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB909015047A GB9015047D0 (en) 1990-07-07 1990-07-07 Multi-stage centrifugal pumps
DE69102357T DE69102357T2 (en) 1990-07-07 1991-06-24 Multi-stage centrifugal pump.
ES91305692T ES2057773T3 (en) 1990-07-07 1991-06-24 CENTRIFUGAL PUMPS WITH MULTIPLE STAGES.
EP91305692A EP0466350B1 (en) 1990-07-07 1991-06-24 Multi-stage centrifugal pumps
AT91305692T ATE106994T1 (en) 1990-07-07 1991-06-24 MULTISTAGE CENTRIFUGAL PUMP.
CA002046465A CA2046465C (en) 1990-07-07 1991-07-08 Multi-stage centrifugal pump
US07/976,205 US5232342A (en) 1990-07-07 1992-11-13 High pressure multi-stage centrifugal pumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB909015047A GB9015047D0 (en) 1990-07-07 1990-07-07 Multi-stage centrifugal pumps

Publications (1)

Publication Number Publication Date
GB9015047D0 true GB9015047D0 (en) 1990-08-29

Family

ID=10678810

Family Applications (1)

Application Number Title Priority Date Filing Date
GB909015047A Pending GB9015047D0 (en) 1990-07-07 1990-07-07 Multi-stage centrifugal pumps

Country Status (6)

Country Link
EP (1) EP0466350B1 (en)
AT (1) ATE106994T1 (en)
CA (1) CA2046465C (en)
DE (1) DE69102357T2 (en)
ES (1) ES2057773T3 (en)
GB (1) GB9015047D0 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0401188D0 (en) * 2004-01-21 2004-02-25 Weir Pumps Ltd Pump casing
DE102008033073B3 (en) * 2008-07-15 2009-12-03 Ruhrpumpen Gmbh Centrifugal pump, has flow channel provided between inlet and outlet, and positioning unit attached at separating wall in selectable angle distance from guiding device and accommodated in region of mold parting line
CN103291462B (en) * 2013-01-05 2015-08-05 中国航空工业集团公司西安飞机设计研究所 A kind of split type fuel pump method of discharge

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB100858A (en) * 1916-03-29 1916-07-20 G & J Weir Ltd Improvements in Centrifugal or the like Pumps.
US1639279A (en) * 1923-05-16 1927-08-16 Frederick Iron And Steel Compa Wearing ring for rotary elements
US1743348A (en) * 1928-05-07 1930-01-14 Byron Jackson Pump Co Centrifugal-pump assembly
FR850685A (en) * 1938-05-21 1939-12-22 G & J Weir Improvements to rotary pumps
CA957563A (en) * 1970-12-21 1974-11-12 Carl J. Blom Multistage pump and manufacturing method

Also Published As

Publication number Publication date
EP0466350A3 (en) 1992-02-26
DE69102357T2 (en) 1995-01-19
DE69102357D1 (en) 1994-07-14
CA2046465A1 (en) 1992-01-08
ES2057773T3 (en) 1994-10-16
EP0466350B1 (en) 1994-06-08
EP0466350A2 (en) 1992-01-15
ATE106994T1 (en) 1994-06-15
CA2046465C (en) 1998-09-22

Similar Documents

Publication Publication Date Title
EP0984167A3 (en) Centrifugal fluid assembly
EP0560466A3 (en) Centrifugal blood pump and motor drive
CA2404623A1 (en) Ventricular assist system secondary impeller
CA2145857A1 (en) Sealless Rotodynamic Pump
JPS6134387A (en) High pressure multistage seal-less pump
GB1495708A (en) Blade for a centrifugal pump impeller
US5232342A (en) High pressure multi-stage centrifugal pumps
EP0466350A3 (en) Multi-stage centrifugal pumps
EP0292113A3 (en) A pump
GB1516876A (en) Rotary pumps
GB959711A (en) Centrifugal compressor construction
GB1349903A (en) High pressure centrifugal pump assembly
CN209294274U (en) A kind of end rings closed type box coupling
JPS64367A (en) Radial piston pump
JPS5770982A (en) Vane pump
DE69414344D1 (en) Lateral flow pump
ATE205915T1 (en) CENTRIFUGAL PUMP WITH RADIAL SEAL
CN218991939U (en) Center-opening centrifugal pump
CN212003742U (en) Guide vane shell of condensate pump
CN210889343U (en) Centrifugal pump
KR19990016000U (en) Rotary shaft of centrifugal pump
JPS64393A (en) Vacuum pump device
FR2398892A1 (en) Fuel pump for IC engine - has volute formed between casing and impeller, with double curved blades mounted on drive motor shaft extension
GB819248A (en) Improvements in or relating to axial-flow pumps
SU966303A1 (en) Centrifugal pump