GB1264715A - - Google Patents

Info

Publication number
GB1264715A
GB1264715A GB1264715DA GB1264715A GB 1264715 A GB1264715 A GB 1264715A GB 1264715D A GB1264715D A GB 1264715DA GB 1264715 A GB1264715 A GB 1264715A
Authority
GB
United Kingdom
Prior art keywords
priming
port
priming chamber
volute
sept
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
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 filed Critical
Publication of GB1264715A publication Critical patent/GB1264715A/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
    • F04D9/04—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock
    • F04D9/041—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock the priming pump having evacuating action
    • F04D9/042—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock the priming pump having evacuating action and means for rendering its in operative
    • 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
    • F04D9/044—Means for rendering the priming pump inoperative
    • F04D9/045—Means for rendering the priming pump inoperative the means being liquid level sensors

Landscapes

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

Abstract

1,264,715. Priming centrifugal pumps. ECODYNE CORP. Sept.11, 1969 [Sept.20, 1968], No.44928/69. Heading F1C. A centrifugal pump is primed by a vacuum pump 66 which draws air from an annular recess 55 in the top wall of the volute 35 into a priming chamber 62. After all the air has been withdrawn, liquid rises within the priming chamber 62 until it contacts an electrode 75 to complete a circuit which switches off the vacuum pump 66. Since the port 63 connecting the priming chamber 62 to the volute 35 is located in a low-pressure area remote from the discharge branch 12, it is not necessary to provide a valve in the port to prevent liquid being forced into the priming chamber 62 during normal running of the centrifugal pump. A restricted clearance between the impeller 45 and an-annular ridge 80 prevents solids in the pumped liquid from clogging the port 63 and fouling the priming system.
GB1264715D 1968-09-20 1969-09-11 Expired GB1264715A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US76102368A 1968-09-20 1968-09-20

Publications (1)

Publication Number Publication Date
GB1264715A true GB1264715A (en) 1972-02-23

Family

ID=25060876

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1264715D Expired GB1264715A (en) 1968-09-20 1969-09-11

Country Status (5)

Country Link
US (1) US3519369A (en)
BE (1) BE739110A (en)
DE (1) DE1947573A1 (en)
FR (1) FR2018560A1 (en)
GB (1) GB1264715A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2303178A (en) * 1995-07-07 1997-02-12 Spp Ltd Centrifugal pump priming systems

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4780050A (en) * 1985-12-23 1988-10-25 Sundstrand Corporation Self-priming pump system
US5035583A (en) * 1990-03-21 1991-07-30 Smith & Loveless, Inc. Sewage pump priming system
US7108010B2 (en) * 2003-09-26 2006-09-19 Smith & Loveless, Inc. Check valve position detector
US20050271518A1 (en) * 2004-06-04 2005-12-08 Smith & Loveless, Inc. Pumping method and system
CN105756948A (en) * 2016-02-29 2016-07-13 蒋燕群 Efficient intelligent self-control self-sucking pump
CN105736388A (en) * 2016-02-29 2016-07-06 蒋燕群 Automatic control type efficient self sucking pump
CN105909528A (en) * 2016-07-12 2016-08-31 合肥新沪屏蔽泵有限公司 Novel permanent magnetic shielding self-priming pump
MX2022003157A (en) * 2019-09-20 2022-04-12 Smith & Loveless Inc Pumping system.
US11619235B2 (en) * 2020-08-17 2023-04-04 Hale Products, Inc. Dual priming system for a pump

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2166530A (en) * 1935-09-18 1939-07-18 Bohleber & Ledbetter Fluid-handling apparatus
US2275502A (en) * 1939-12-06 1942-03-10 Laval Steam Turbine Co Priming system for centrifugal pumps
US2448717A (en) * 1945-05-01 1948-09-07 Morris Machine Works Sealing means for pumping apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2303178A (en) * 1995-07-07 1997-02-12 Spp Ltd Centrifugal pump priming systems
GB2303178B (en) * 1995-07-07 1999-02-17 Spp Ltd Centrifugal pump priming systems

Also Published As

Publication number Publication date
FR2018560A1 (en) 1970-05-29
US3519369A (en) 1970-07-07
DE1947573A1 (en) 1970-04-02
BE739110A (en) 1970-03-02

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee