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GB674815A - Improvements relating to centrifugal pumps - Google Patents

Improvements relating to centrifugal pumps

Info

Publication number
GB674815A
GB674815A GB30126/50A GB3012650A GB674815A GB 674815 A GB674815 A GB 674815A GB 30126/50 A GB30126/50 A GB 30126/50A GB 3012650 A GB3012650 A GB 3012650A GB 674815 A GB674815 A GB 674815A
Authority
GB
United Kingdom
Prior art keywords
ejector
pump
air
water
centrifugal pumps
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
GB30126/50A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB674815A publication Critical patent/GB674815A/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
    • F04D9/00—Priming; Preventing vapour lock
    • F04D9/004—Priming of not self-priming pumps
    • F04D9/005—Priming of not self-priming pumps by adducting or recycling liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D9/00—Priming; Preventing vapour lock
    • F04D9/04—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock
    • F04D9/06—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock of jet type

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

674,815. Centrifugal pumps. SCHULZ, W. Dec. 8,1950 [May 15, 1950], No. 30126/50. Class 110(i) A centrifugal pump is primed by an air ejector 8 arranged on the discharge side of the pump sufficiently close to the impeller 1 that the water for its operation is supplied by the impelling effect of the ends of the impeller blades, the water after passing through the ejector returning, as shown by arrow 22, to the discharge chamber 5. The ejector extracts air from the pump inlet through a pipe (not shown), which is connected at 14 to an annular groove 11. On leaving the ejector the air, as shown by arrow 20, collects below the closed discharge valve 7 and is withdrawn at 21. The pump inlet is upcast so as to maintain a water level 15 which covers the ejector. In a multi-stage pump, the priming arrangement may be applied to one stage only.
GB30126/50A 1950-05-15 1950-12-08 Improvements relating to centrifugal pumps Expired GB674815A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE674815X 1950-05-15

Publications (1)

Publication Number Publication Date
GB674815A true GB674815A (en) 1952-07-02

Family

ID=6591132

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30126/50A Expired GB674815A (en) 1950-05-15 1950-12-08 Improvements relating to centrifugal pumps

Country Status (1)

Country Link
GB (1) GB674815A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2505842B1 (en) * 2011-03-29 2019-12-25 Grundfos Management a/s Multi stage centrifugal pump system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2505842B1 (en) * 2011-03-29 2019-12-25 Grundfos Management a/s Multi stage centrifugal pump system

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