US3490379A - Circulating pump - Google Patents

Circulating pump Download PDF

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Publication number
US3490379A
US3490379A US737548A US3490379DA US3490379A US 3490379 A US3490379 A US 3490379A US 737548 A US737548 A US 737548A US 3490379D A US3490379D A US 3490379DA US 3490379 A US3490379 A US 3490379A
Authority
US
United States
Prior art keywords
pump
valve
housing
fluid
cowl
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 - Lifetime
Application number
US737548A
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English (en)
Inventor
Nikolaus Laing
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.)
VORTEX AG
Original Assignee
VORTEX AG
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 claimed from DE19671653665 external-priority patent/DE1653665C3/de
Application filed by VORTEX AG filed Critical VORTEX AG
Application granted granted Critical
Publication of US3490379A publication Critical patent/US3490379A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/605—Mounting; Assembling; Disassembling specially adapted for liquid pumps
    • F04D29/606—Mounting in cavities
    • F04D29/608—Mounting in cavities means for removing without depressurizing the cavity
    • 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
    • F04D13/021—Units comprising pumps and their driving means containing a coupling
    • F04D13/024—Units comprising pumps and their driving means containing a coupling a magnetic coupling
    • 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
    • F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
    • F04D15/0016—Control, e.g. regulation, of pumps, pumping installations or systems by using valves mixing-reversing- or deviation valves
    • 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
    • F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
    • F04D15/0022—Control, e.g. regulation, of pumps, pumping installations or systems by using valves throttling valves or valves varying the pump inlet opening or the outlet opening

Definitions

  • My present invention relates to a pump installed in a conduit for the circulation of a fluid, e.g., water used for utility purposes.
  • a fluid e.g., water used for utility purposes.
  • a more particular object of this invention is to provide means for enabling the simultaneous opening and closure of the inlet and outlet ports of a pump housing with detachable impeller assembly.
  • an extension detachably mounted on the pump housing to accommodate the impeller assembly this extension having a passage communicating with an inlet compartment and an outlet compartment of the pump housing separated by a fluidtight partition.
  • Two valve seats, formed between these compartments and respective ports, are closable by normally ineffective valve members which can be moved into engagement with their seats by operating means advantageou s'ly comprising a common actuator for both valve members, specifically a rotatable worm in mesh with a worm gear on a shaft whose extremities are threaded with mutually opposite pitch and mate with complementary threads of these members.
  • the worm gear may be flanked by a pair of closely spaced packing disks, traversed by the shaft, which form part of the aforementioned partition.
  • FIG. 1 is an axial sectional view of a circulating pump according to my invention.
  • FIG. 2 is a cross-sectional view taken on the line IIII of FIG. 1.
  • the pump shown in the drawing comprises a housing 4 which forms a pump chamber divided into two compartments 31, 32 by a partition generally designated 30.
  • Compartment 31 communicates with an inlet port 5 through an annular valve seat 12, closable by a valve member 8, while compartment 32 communicates with an outlet port 6 through a similar seat 13 which is closable by a valve member 9.
  • the two valve members held against rotation by radial pins 17, 18 engaging in respective outer grooves 22 (as particularly illustrated for valve body 8), are movable along the common axis 7 of ports 5, 6 and seats 12, 13 under the control of an axially extending shaft 11 of polygonal cross-section; the two extremities of this shaft, threaded with mutually opposite pitch, are matingly received in threaded bores of valve members 8 and 9, respectively.
  • rotation of shaft 11 in a predetermined direction draws the valve members 8, 9 onto their seats 12, 13 whereas rotation in the opposite sense drives these members apart and separates them from their seats to unblock the flow of fluid therethrough.
  • a worm gear 14 mounted thereon is in mesh with a worm 15 integral with an external knob 16, the axis 25 of worm 15 being transverse to the shaft.
  • Worm gear 14 is flanked by a pair of packing disks 19, 20 which form part of the partition 30 and insure a fluidtight seal between compartments 31 and 32.
  • a packing ring 21 on the shaft of worm 15 affords further protection against leakage of fluid from housing 4.
  • the pump housing 4 is formed with two lateral apertures 23, 24 communicating with inlet compartment 31 and outlet compartment 32, respectively.
  • An impeller rotor 2 is rotatably journaled on a pin 26 inside a cowl 27 rigid with that pin, a peripheral zone 27a of this cowl resting on an internal shoulder 28a of an annular boss 28 which surrounds the apertures 23 and 24.
  • Aperture 23, centered within the boss 28, is overlain by a guide ring 2a spaced from the body of rotor 2 by a set of involuteshaped vanes 2b; the spaces between these vanes form passages for the discharge of water or other fluid from compartment 31 into a ring space 29 opening into the eccentric aperture 24, the fluid thus entering the comparte ment 32 as indicated by the arrows in FIG. 1.
  • the assembly is similar to that shown in my prior U.S. Patent No. 3,354,833.
  • Rotor 2 is provided with ferromagnetic armatures 33 entrainable by magnetic poles 34 on the shaft 35 of an electric drive motor 1; the poles 34 rotate around the cowl 27 inside an extension 36 of housing 4 which also encloses the motor 1.
  • Extension 36 is detachably secured to housing 4 by means of a clamping nut 3 engaging the threaded outer surface of boss 28; a flange 36a projecting axially form motor housing 36 bears upon shoulder 28a through the intermediary of cowl portion 27a to clamp the cowl firmly in place, thus forming a fluidtight envelope around the fluid path from aperture 23 to aperture 24.
  • knob 16 is manually rotated to force the valve members 8 and 9 onto their seats, thus tightly sealing the pump chamber 31, 32 against the outside; clamping nut 3 may now be unscrewed to permit removal of housing extension 36 and cowl 27 so as to give access to motor 1 as well as rotor 2; packing disks 19, 20 are then also accessible through ports 24 and 23, respectively.
  • the self-locking action of worm drive 14, 15 prevents accidental dislodgement of the valve members 8, 9 from their seats in the disassembled state of the unit.
  • a fluid pump comprising a housing with an inlet port and an outlet port at opposite ends of a pump chamber; partition means dividing said chamber into an inlet compartment and an outlet compartment; a first valve seat between said inlet port and said inlet compartment; a second valve seat between said outlet compartment and said outlet port; an extension detachably mounted on said housing and provided with a passage communicating with said compartments; impeller means in said passage for displacing a fluid from said inlet port to said outlet port; first and second valve means normally spaced from said first and second valve seats for letting said fluid pass therethrough; and operating means for moving said first and second valve means into fiowblocking engagement with said first and second valve seats, respectively,
  • a pump as defined in claim 3 wherein said actuator comprises a worm rotatable about an axis transverse to said link, the latter being a shaft provided with a worm gear in mesh with said worm.
  • a pump as defined in claim 4 wherein said partition means comprises a pair of closely packing disks flanking said worm gear.
  • a pump as defined in claim 1 wherein said impeller means comprises a rotor, a motor for driving said rotor, magnetic coupling means between said motor and said rotor, and a cowl between said motor and said rotor forming a fiuidtight enclosure for the latter.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
US737548A 1967-06-22 1968-06-17 Circulating pump Expired - Lifetime US3490379A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19671653665 DE1653665C3 (de) 1967-06-22 1967-06-22 Umwälzpumpe mit saug- und druckseitig angeordneten Schließeinrichtungen

Publications (1)

Publication Number Publication Date
US3490379A true US3490379A (en) 1970-01-20

Family

ID=5685145

Family Applications (1)

Application Number Title Priority Date Filing Date
US737548A Expired - Lifetime US3490379A (en) 1967-06-22 1968-06-17 Circulating pump

Country Status (3)

Country Link
US (1) US3490379A (enrdf_load_stackoverflow)
FR (1) FR1570882A (enrdf_load_stackoverflow)
GB (1) GB1229849A (enrdf_load_stackoverflow)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3649137A (en) * 1970-11-30 1972-03-14 Nikolaus Laing Centrifugal pump with magnetic coupling
US3723029A (en) * 1970-03-17 1973-03-27 Laing Nikolaus Cooling water pump for automobiles
US3732445A (en) * 1969-12-16 1973-05-08 Laing Nikolaus Rotating pole rings supported in contactless bearings
US3741690A (en) * 1970-10-13 1973-06-26 Laing Nikolaus Separating wall for magnetic machine
US3771910A (en) * 1970-09-11 1973-11-13 Laing Nikolaus Axial thrust compensation for centrifugal pumps
US3838947A (en) * 1970-11-30 1974-10-01 Laing Nikolaus Rotating electrical machine with evaporation cooling
US3846050A (en) * 1970-12-14 1974-11-05 Laing Nikolaus Centrifugal pumps having rotatable pole rings supported in contactless bearings
US4002936A (en) * 1971-10-07 1977-01-11 Nikolaus Laing Electric submersible pump
US4135863A (en) * 1977-09-30 1979-01-23 Little Giant Corporation Impeller for a magnetically coupled pump
US4352646A (en) * 1975-01-13 1982-10-05 Ingeborg Laing Rotodynamic pump with spherical motor
US4967793A (en) * 1988-03-14 1990-11-06 Gill Ajit S Compact multi-stage pressure reducing valve
EP0451376A1 (en) * 1989-03-06 1991-10-16 St. Jude Medical, Inc. Centrifugal blood pump and motor drive
US5060691A (en) * 1989-04-19 1991-10-29 Gill Ajit S Compact multi-stage pressure reducing valve
US5135198A (en) * 1991-05-30 1992-08-04 The Babcock & Wilcox Company Externally adjustable flow restriction control for poppet valves
US20030194314A1 (en) * 2000-08-22 2003-10-16 Mcewen Stephen N. Low profile pump
US20070270008A1 (en) * 2004-11-26 2007-11-22 Karsten Laing Circulating pump and method for producing a circulating pump
US20080277935A1 (en) * 2005-02-08 2008-11-13 William Stephen Killingbeck Quick Attach And Safe Release Arrangement For A Port Of A Water Pump
US20110199853A1 (en) * 2007-06-14 2011-08-18 Intermolecular, Inc. Combinatorial Processing Including Stirring
US20130129541A1 (en) * 2011-08-23 2013-05-23 Ronald Flanary Magnetically Coupled Pump Assembly
US20140001004A1 (en) * 2011-03-11 2014-01-02 Ruhrpumpen Gmbh Split case of a magnetic coupling, in particular of a magnetic coupling pump

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100443729C (zh) * 2006-11-17 2008-12-17 杨克庆 一种流体管道上泵防漏方法及防漏系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2978150A (en) * 1958-10-24 1961-04-04 Borg Warner Plug-in pump assembly
US3000543A (en) * 1958-09-22 1961-09-19 Borg Warner Plug-in pump assembly
US3252422A (en) * 1963-05-15 1966-05-24 Stulens Jean Louis Circulating turbopump, particularly for central heating plants
US3306222A (en) * 1964-06-25 1967-02-28 Beresford James & Son Ltd Electrically driven circulating pump
US3411450A (en) * 1967-03-07 1968-11-19 Little Giant Corp Pump

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3000543A (en) * 1958-09-22 1961-09-19 Borg Warner Plug-in pump assembly
US2978150A (en) * 1958-10-24 1961-04-04 Borg Warner Plug-in pump assembly
US3252422A (en) * 1963-05-15 1966-05-24 Stulens Jean Louis Circulating turbopump, particularly for central heating plants
US3306222A (en) * 1964-06-25 1967-02-28 Beresford James & Son Ltd Electrically driven circulating pump
US3411450A (en) * 1967-03-07 1968-11-19 Little Giant Corp Pump

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3732445A (en) * 1969-12-16 1973-05-08 Laing Nikolaus Rotating pole rings supported in contactless bearings
US3723029A (en) * 1970-03-17 1973-03-27 Laing Nikolaus Cooling water pump for automobiles
US3771910A (en) * 1970-09-11 1973-11-13 Laing Nikolaus Axial thrust compensation for centrifugal pumps
US3741690A (en) * 1970-10-13 1973-06-26 Laing Nikolaus Separating wall for magnetic machine
US3649137A (en) * 1970-11-30 1972-03-14 Nikolaus Laing Centrifugal pump with magnetic coupling
US3838947A (en) * 1970-11-30 1974-10-01 Laing Nikolaus Rotating electrical machine with evaporation cooling
US3846050A (en) * 1970-12-14 1974-11-05 Laing Nikolaus Centrifugal pumps having rotatable pole rings supported in contactless bearings
US4002936A (en) * 1971-10-07 1977-01-11 Nikolaus Laing Electric submersible pump
US4352646A (en) * 1975-01-13 1982-10-05 Ingeborg Laing Rotodynamic pump with spherical motor
US4135863A (en) * 1977-09-30 1979-01-23 Little Giant Corporation Impeller for a magnetically coupled pump
US4967793A (en) * 1988-03-14 1990-11-06 Gill Ajit S Compact multi-stage pressure reducing valve
EP0451376A1 (en) * 1989-03-06 1991-10-16 St. Jude Medical, Inc. Centrifugal blood pump and motor drive
US5060691A (en) * 1989-04-19 1991-10-29 Gill Ajit S Compact multi-stage pressure reducing valve
US5135198A (en) * 1991-05-30 1992-08-04 The Babcock & Wilcox Company Externally adjustable flow restriction control for poppet valves
US20030194314A1 (en) * 2000-08-22 2003-10-16 Mcewen Stephen N. Low profile pump
US20070270008A1 (en) * 2004-11-26 2007-11-22 Karsten Laing Circulating pump and method for producing a circulating pump
US8313315B2 (en) * 2004-11-26 2012-11-20 Itt Manufacturing Enterprises, Inc. Circulating pump and method for producing a circulating pump
US20080277935A1 (en) * 2005-02-08 2008-11-13 William Stephen Killingbeck Quick Attach And Safe Release Arrangement For A Port Of A Water Pump
US8480384B2 (en) * 2005-02-08 2013-07-09 Munster Simms Engineering Limited Quick attach and safe release arrangement for a port of a water pump
US20110199853A1 (en) * 2007-06-14 2011-08-18 Intermolecular, Inc. Combinatorial Processing Including Stirring
US20140001004A1 (en) * 2011-03-11 2014-01-02 Ruhrpumpen Gmbh Split case of a magnetic coupling, in particular of a magnetic coupling pump
US8956067B2 (en) * 2011-03-11 2015-02-17 Ruhrpumpen Gmbh Split case of a magnetic coupling, in particular of a magnetic coupling pump
US20130129541A1 (en) * 2011-08-23 2013-05-23 Ronald Flanary Magnetically Coupled Pump Assembly
US10260507B2 (en) * 2011-08-23 2019-04-16 Moog Inc. Magnetically coupled pump assembly

Also Published As

Publication number Publication date
GB1229849A (enrdf_load_stackoverflow) 1971-04-28
FR1570882A (enrdf_load_stackoverflow) 1969-06-13

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