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WO1991018209A3 - Liquid pump - Google Patents

Liquid pump

Info

Publication number
WO1991018209A3
WO1991018209A3 PCT/GB1991/000790 GB9100790W WO9118209A3 WO 1991018209 A3 WO1991018209 A3 WO 1991018209A3 GB 9100790 W GB9100790 W GB 9100790W WO 9118209 A3 WO9118209 A3 WO 9118209A3
Authority
WO
WIPO (PCT)
Prior art keywords
seal
liquid
pumped
bearings
liquid pump
Prior art date
Application number
PCT/GB1991/000790
Other languages
French (fr)
Other versions
WO1991018209A2 (en
Inventor
William Thomson Sweeney
Original Assignee
William Thomson Sweeney
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 William Thomson Sweeney filed Critical William Thomson Sweeney
Publication of WO1991018209A2 publication Critical patent/WO1991018209A2/en
Publication of WO1991018209A3 publication Critical patent/WO1991018209A3/en

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
    • F04D29/18—Rotors
    • F04D29/185—Rotors consisting of a plurality of wheels
    • 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
    • F04D1/02—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal
    • 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
    • F04D29/10—Shaft sealings
    • F04D29/12—Shaft sealings using sealing-rings
    • F04D29/126—Shaft sealings using sealing-rings especially adapted for liquid pumps
    • F04D29/128—Shaft sealings using sealing-rings especially adapted for liquid pumps with special means for adducting cooling or sealing fluid
    • 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts

Landscapes

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

Abstract

A centrifugal pump has a shaft (10) mounted on bearings (11, 12) in a housing and carries a rotor (22, 23) which in use directs liquid to an oulet (25). A metal to metal seal (17) protects the bearings from the liquid being pumped. Coolant for the seal is directed at the seal through passages (33) and the water collects in a collection groove and is returned to the exterior of the pump. Any of the liquid which is being pumped which may approach the seal is also collected in the groove and is led away before it can reach the seal.
PCT/GB1991/000790 1990-05-19 1991-05-20 Liquid pump WO1991018209A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB909011258A GB9011258D0 (en) 1990-05-19 1990-05-19 Liquid pump
GB9011258.2 1990-05-19

Publications (2)

Publication Number Publication Date
WO1991018209A2 WO1991018209A2 (en) 1991-11-28
WO1991018209A3 true WO1991018209A3 (en) 1991-12-26

Family

ID=10676270

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1991/000790 WO1991018209A2 (en) 1990-05-19 1991-05-20 Liquid pump

Country Status (3)

Country Link
AU (1) AU7875291A (en)
GB (1) GB9011258D0 (en)
WO (1) WO1991018209A2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1990519A (en) * 1933-01-20 1935-02-12 Pacific Pump Works Packing structure for hot liquid pumps
US2741991A (en) * 1951-04-06 1956-04-17 Union Steam Pump Company Pump and packing
US3273509A (en) * 1964-04-07 1966-09-20 Vanton Pump & Equipment Corp Centrifugal pump

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1990519A (en) * 1933-01-20 1935-02-12 Pacific Pump Works Packing structure for hot liquid pumps
US2741991A (en) * 1951-04-06 1956-04-17 Union Steam Pump Company Pump and packing
US3273509A (en) * 1964-04-07 1966-09-20 Vanton Pump & Equipment Corp Centrifugal pump

Also Published As

Publication number Publication date
WO1991018209A2 (en) 1991-11-28
AU7875291A (en) 1991-12-10
GB9011258D0 (en) 1990-07-11

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