US2383424A - Pump - Google Patents

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Publication number
US2383424A
US2383424A US534392A US53439244A US2383424A US 2383424 A US2383424 A US 2383424A US 534392 A US534392 A US 534392A US 53439244 A US53439244 A US 53439244A US 2383424 A US2383424 A US 2383424A
Authority
US
United States
Prior art keywords
pump
extension
impeller
shaft
suction bell
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
US534392A
Inventor
Alexey J Stepanoff
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.)
Ingersoll Rand Co
Original Assignee
Ingersoll Rand Co
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 Ingersoll Rand Co filed Critical Ingersoll Rand Co
Priority to US534392A priority Critical patent/US2383424A/en
Application granted granted Critical
Publication of US2383424A publication Critical patent/US2383424A/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/18Rotors
    • F04D29/22Rotors specially for centrifugal pumps
    • F04D29/2205Conventional flow pattern
    • F04D29/2211More than one set of flow passages
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D1/00Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D1/006Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps double suction pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D7/00Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04D7/02Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type

Description

Aug 21, 1945. A. J. STEPANQFF 2,383,424

PUMP

Filed May '6, 1944 I l as I 47 '11H27 4 8 44 20 & B 42 25 65 has 34 62 es 63 60; 65 59 65' 30 :,/59

28;@ Il 3 aa 56 a9 35 .5534 49 f' 41 38 31 5 2 54 55 33"` 58 i Z771 I 35 y 5657 54 52 EQ-2' J5 le'a/A TOR ,e BY ,y l a'wff ws ATTORNEY.

pumping mechanism Pateated'Aug. 21, 1945 UNITED STATESv PATENT ol-FICE PUMP a corporation of New Jersey minsten, N. J., aunar New York, N. Y.,

Application May 6, 1944, Serial No. 534,392

2 Claims. (Cl. 103-104) This invention relates to pumps, and more particularly to vertical pumps intended for permanent installation in a pit or reservoir and to be submerged in the liquid intended to be pumped.

One object of the invention is to enable the rotative parts of the pump to be conveniently removed from the pump casing for purposes of inspection and repairs.

A further object is to enable the rotative parts o1' the pump to be removed from the without disturbing the casing parts of the pump or the conduits connected thereto.

Other objects will be in part obvious and in part pointed out hereinafter.

In the drawing accompanying this specicai tion and in which similar reference numerals refer to similar parts,

Figure l is a side elevation of a pump constructed in accordance with the practice of the invention, and

Figure 2 is an elevation of the pump partly broken away.

Referring more particularly to the drawing, the pumping mechanism, designated in general by 26, is of the vertical type and is shown supported entirely by and depending from a floor 2| to which it may be secured in any well known manner.

The'pumping mechanism 20 is intended more particularly for pumping iluid from a pit or reservoir (not shown). It comprises a base member 22 that rests upon the floor 2| and has mounted thereon a suitable motor onlythe cas. ing 23- of which is shown.

In the iioor 2| and the lower end of the base 22 are concentric openings 24 and 25, respec tively, and from the base depends a tubular extension 26 that extends through the opening 24 and is secured to the lower side of the base member 22 by bolts 21. On the lower end of the extension 26 is a flange 28 that abuts an end of a pump casing 29 and is fastened thereto by bolts 36. vThe pump casing 29 depends from and is supported entirely by the extension 26, and its intermediate'portion constitutes a pumping chamber 3| that is encircled by a volute discharge chamber 32 having a discharge port 33 opening into a discharge conduit 34 secured to the casing 29 by bolts 35 and extending upwardly through the floor 2|.

The pumping chamber 3| contains an impeller 36 of the double suction' type that is mounted upon 'a vertical shaft 3l extending vide a correct degree said opening.

through the extensionv 26 and the base member 22 for connection with the shaft of the driving motor. The impeller 36 is mounted'upon a portion 38 of reduced-diameter of the shaft. Its upper end seats against a shoulder' 39 on the shaft and is held thereagainst' by a nut 40 threaded' on the portion 38 and acting against the lower end of the impeller.

shaft serves further to secure the shaft and the impeller against relative rotation.

, The shaft 31 extends through an aperture 62 in a plate 43 lying in the lower portion of the base member 22 and secured xedly thereto by bolts 44 to cover the upper end of the extension 28, and on the plate 43 is a stuiiing box 45 containing sealing material 46 for effecting a seal along the surface of the shaft. The stuffing box is secured to the plate 43 by bolts 6l, and a packing member i6 encircles the aperture 42 and is clamped between the plate 43 and the stuing box 45.

In the upper and lower sides of the pump casing 29 are openings 49 and 5|) to receive, respectively, suction bells 5| and 52. The suction bell 52 is secured iixedly to the casing by bolts 53 and has a plurality of radial arms 54 to support, at their inner ends, a bearing 55 .of cup-shape that contains a bushing 56 to accomo date the lower end 5,1 of the shaft 3l. lBoth openings 49 and 5|) are preferably of the same diameter but it is desirable that the opening t9 be of somewhat larger diameter than the 1mpeller so that the latter may pass readily through is adjustable in the openendwise therein to proof clearance between the suction bell and the upper vanes 58 of the i peller. To this end the suction bell 5| is provided with the radial arms 59 that carry at their inner ends a bearing 60, and in the bearing 60 is a bushing 6| having an external 'ange at its The suction bell 5| ing 49 being slidable lower end to overlie and engage the corresponding end of the bearing 60.

The s1eevej6| projects beyond the upper end of the bearing 60 and is threaded into the lower end of a tubular, holder 62 encircling the shaft 31. Preferably, a sleeve 63 is threaded upon the bushing 6| to seat against the upper end of the bearing 60 for clamping the bushing 6| to the bearing, and the holder 62 is, in turn, seated against the upper end of the sleeve 63 to lock the said sleeve firmly in position.

The Upper end' of the holder 62 extends A suitable key '4| imbedded in the hub of the impeller and the through the aperture 42 and is threaded internally to receive an externally threaded annular stem 64 on the lower surface of the stuffing box"` 45 and encircling the shaft 31. The threaded connection between the holder 82 and the stem 64 is of ample length so that the holder may be readily adjusted endwise of the stem M for raising or lowering the suction bell 5I to provide the correct clearance between the said suction bell 5I and the impeller vanes 58.

The body portion of the suction bell 5i lies within the extension 26 and is of slightly smaller diameter than the said extension so that it may be rotated readily for effecting the said adjustments or, when required, may pass readily through the entire extension for removal from the top thereof. The upper or inlet end ot said suction bell is, moreover, flared outwardly toward the wall of the extension 2i and adjacent said flared portion and in the wall of the extension 26 are suitable ports 85 for the admission of liquid into the upper end of the impeller chamber.

In practice, with the pump immersed in the liquid intendedto be pumped, liquid enters the impeller chamber through both suction bells and is impelled through the conduit Il to a desired destination. Whenever it is required to disassemble the rotative elements of the pump the motor is first removed from the .base member I2. The plate 4I, together with the stumng box 4I and the suction bell 5|, may thenbe conveniently removed from the-assembly. Ii' required, the impeller may next be withdrawn from the pump through the opening 4l and the extension. After the required repairs have been made lthe parts arev again returned to their correct assembled positions and all the adjustments `are made from the motor i'loor 2| and without disturbing the assembled relationship of the casing parts below the motor base or the connection between the pump casing and the discharge conduit 34.

I claim:

1. In a vertical pump, a base member, an extension depending from the base member and having a port for the admission of liquid thereinto, a pump casing depending from the extension and having an impeller chamber and an opening to communicate the impeller chamber 'with the interior of the extension. a discharge holder for the suction bell and the bearing adjustably connected to the base member for effecting adjustment of the` suction bell axially of the impeller.

2. In a vertical pump, a base member, a tubular extension depending from the .base member and having a port for the admission of fluid thereinto, a pump casing depending from the extension and having an impeller chamber and openings in the opposed sides coaxial with the support member, a discharge conduit for the impeller chamber connected to the casing, a double suction impeller ln the impeller chamber of smaller diameter than the uppermost opening and the extension to enable the impeller to pass therethrough, a vertical shaft for the impeller extending through the extension and the base member, a suction bell in the lowermost opening having a bearing for the shaft, a suction bell in the uppermost opening and being adjustable axially of the impeller chamber, a bearing in the last mentioned suction bell for the shaft, and a tubular holder for the last mentioned suction bell f adjustably connected to the base member.

ALEXEY J. STEPANOI'F.

US534392A 1944-05-06 1944-05-06 Pump Expired - Lifetime US2383424A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US534392A US2383424A (en) 1944-05-06 1944-05-06 Pump

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Application Number Priority Date Filing Date Title
US534392A US2383424A (en) 1944-05-06 1944-05-06 Pump

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US2383424A true US2383424A (en) 1945-08-21

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US534392A Expired - Lifetime US2383424A (en) 1944-05-06 1944-05-06 Pump

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Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3048384A (en) * 1959-12-08 1962-08-07 Metal Pumping Services Inc Pump for molten metal
US3371614A (en) * 1966-04-18 1968-03-05 Angelo J. Crisafulli Centrifugal pump
US3756738A (en) * 1971-10-22 1973-09-04 Clarkson Ind Inc Centrifugal pump with differential thermal expansion relief means
US3904306A (en) * 1973-07-05 1975-09-09 Thune Eureka As Two-way impeller in a centrifugal pump having vertical drive shaft
US3958895A (en) * 1975-02-07 1976-05-25 Brisson Leonard L Pump with shearing means
US5597289A (en) * 1995-03-07 1997-01-28 Thut; Bruno H. Dynamically balanced pump impeller
US6019576A (en) * 1997-09-22 2000-02-01 Thut; Bruno H. Pumps for pumping molten metal with a stirring action
US6485257B1 (en) 1999-09-17 2002-11-26 Tom Richards, Inc. Top-flow centrifugal fluid pump
US20080213111A1 (en) * 2002-07-12 2008-09-04 Cooper Paul V System for releasing gas into molten metal
US20080314548A1 (en) * 2007-06-21 2008-12-25 Cooper Paul V Transferring molten metal from one structure to another
US20090269191A1 (en) * 2002-07-12 2009-10-29 Cooper Paul V Gas transfer foot
US7906068B2 (en) 2003-07-14 2011-03-15 Cooper Paul V Support post system for molten metal pump
US8075837B2 (en) 2003-07-14 2011-12-13 Cooper Paul V Pump with rotating inlet
US20120195748A1 (en) * 2009-09-28 2012-08-02 Ebara Corporation Vortex prevention device and double suction vertical pump having such vortex prevention device
US8366993B2 (en) 2007-06-21 2013-02-05 Cooper Paul V System and method for degassing molten metal
US20130039754A1 (en) * 2011-08-11 2013-02-14 Itt Vertical double-suction pump having beneficial axial thrust
US8444911B2 (en) 2009-08-07 2013-05-21 Paul V. Cooper Shaft and post tensioning device
US8449814B2 (en) 2009-08-07 2013-05-28 Paul V. Cooper Systems and methods for melting scrap metal
US8524146B2 (en) 2009-08-07 2013-09-03 Paul V. Cooper Rotary degassers and components therefor
US8529828B2 (en) 2002-07-12 2013-09-10 Paul V. Cooper Molten metal pump components
US8535603B2 (en) 2009-08-07 2013-09-17 Paul V. Cooper Rotary degasser and rotor therefor
US8613884B2 (en) 2007-06-21 2013-12-24 Paul V. Cooper Launder transfer insert and system
US20140112755A1 (en) * 2007-05-21 2014-04-24 Weir Minerals Australia Ltd. Pumps
US8714914B2 (en) 2009-09-08 2014-05-06 Paul V. Cooper Molten metal pump filter
US9011761B2 (en) 2013-03-14 2015-04-21 Paul V. Cooper Ladle with transfer conduit
US9108244B2 (en) 2009-09-09 2015-08-18 Paul V. Cooper Immersion heater for molten metal
US9156087B2 (en) 2007-06-21 2015-10-13 Molten Metal Equipment Innovations, Llc Molten metal transfer system and rotor
US9205490B2 (en) 2007-06-21 2015-12-08 Molten Metal Equipment Innovations, Llc Transfer well system and method for making same
US9410744B2 (en) 2010-05-12 2016-08-09 Molten Metal Equipment Innovations, Llc Vessel transfer insert and system
US9409232B2 (en) 2007-06-21 2016-08-09 Molten Metal Equipment Innovations, Llc Molten metal transfer vessel and method of construction
US9643247B2 (en) 2007-06-21 2017-05-09 Molten Metal Equipment Innovations, Llc Molten metal transfer and degassing system
US9903383B2 (en) 2013-03-13 2018-02-27 Molten Metal Equipment Innovations, Llc Molten metal rotor with hardened top
US10428821B2 (en) 2009-08-07 2019-10-01 Molten Metal Equipment Innovations, Llc Quick submergence molten metal pump

Cited By (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3048384A (en) * 1959-12-08 1962-08-07 Metal Pumping Services Inc Pump for molten metal
US3371614A (en) * 1966-04-18 1968-03-05 Angelo J. Crisafulli Centrifugal pump
US3756738A (en) * 1971-10-22 1973-09-04 Clarkson Ind Inc Centrifugal pump with differential thermal expansion relief means
US3904306A (en) * 1973-07-05 1975-09-09 Thune Eureka As Two-way impeller in a centrifugal pump having vertical drive shaft
US3958895A (en) * 1975-02-07 1976-05-25 Brisson Leonard L Pump with shearing means
US5597289A (en) * 1995-03-07 1997-01-28 Thut; Bruno H. Dynamically balanced pump impeller
US6019576A (en) * 1997-09-22 2000-02-01 Thut; Bruno H. Pumps for pumping molten metal with a stirring action
US6485257B1 (en) 1999-09-17 2002-11-26 Tom Richards, Inc. Top-flow centrifugal fluid pump
US8361379B2 (en) 2002-07-12 2013-01-29 Cooper Paul V Gas transfer foot
US8529828B2 (en) 2002-07-12 2013-09-10 Paul V. Cooper Molten metal pump components
US20090269191A1 (en) * 2002-07-12 2009-10-29 Cooper Paul V Gas transfer foot
US20080213111A1 (en) * 2002-07-12 2008-09-04 Cooper Paul V System for releasing gas into molten metal
US8440135B2 (en) 2002-07-12 2013-05-14 Paul V. Cooper System for releasing gas into molten metal
US8110141B2 (en) 2002-07-12 2012-02-07 Cooper Paul V Pump with rotating inlet
US8178037B2 (en) 2002-07-12 2012-05-15 Cooper Paul V System for releasing gas into molten metal
US8409495B2 (en) 2002-07-12 2013-04-02 Paul V. Cooper Rotor with inlet perimeters
US9034244B2 (en) 2002-07-12 2015-05-19 Paul V. Cooper Gas-transfer foot
US8501084B2 (en) 2003-07-14 2013-08-06 Paul V. Cooper Support posts for molten metal pumps
US8475708B2 (en) 2003-07-14 2013-07-02 Paul V. Cooper Support post clamps for molten metal pumps
US8075837B2 (en) 2003-07-14 2011-12-13 Cooper Paul V Pump with rotating inlet
US7906068B2 (en) 2003-07-14 2011-03-15 Cooper Paul V Support post system for molten metal pump
US9897090B2 (en) * 2007-05-21 2018-02-20 Weir Minerals Australia Ltd. Pumps
CN105782110B (en) * 2007-05-21 2018-07-17 伟尔矿物澳大利亚私人有限公司 The improvement of pump and the related improvement with pump
CN105782110A (en) * 2007-05-21 2016-07-20 伟尔矿物澳大利亚私人有限公司 Improvements In And Relating To Pumps
US20140112755A1 (en) * 2007-05-21 2014-04-24 Weir Minerals Australia Ltd. Pumps
US8337746B2 (en) 2007-06-21 2012-12-25 Cooper Paul V Transferring molten metal from one structure to another
US9409232B2 (en) 2007-06-21 2016-08-09 Molten Metal Equipment Innovations, Llc Molten metal transfer vessel and method of construction
US20080314548A1 (en) * 2007-06-21 2008-12-25 Cooper Paul V Transferring molten metal from one structure to another
US9643247B2 (en) 2007-06-21 2017-05-09 Molten Metal Equipment Innovations, Llc Molten metal transfer and degassing system
US8613884B2 (en) 2007-06-21 2013-12-24 Paul V. Cooper Launder transfer insert and system
US8366993B2 (en) 2007-06-21 2013-02-05 Cooper Paul V System and method for degassing molten metal
US9383140B2 (en) 2007-06-21 2016-07-05 Molten Metal Equipment Innovations, Llc Transferring molten metal from one structure to another
US9205490B2 (en) 2007-06-21 2015-12-08 Molten Metal Equipment Innovations, Llc Transfer well system and method for making same
US9156087B2 (en) 2007-06-21 2015-10-13 Molten Metal Equipment Innovations, Llc Molten metal transfer system and rotor
US9017597B2 (en) 2007-06-21 2015-04-28 Paul V. Cooper Transferring molten metal using non-gravity assist launder
US8753563B2 (en) 2007-06-21 2014-06-17 Paul V. Cooper System and method for degassing molten metal
US9080577B2 (en) 2009-08-07 2015-07-14 Paul V. Cooper Shaft and post tensioning device
US8444911B2 (en) 2009-08-07 2013-05-21 Paul V. Cooper Shaft and post tensioning device
US8449814B2 (en) 2009-08-07 2013-05-28 Paul V. Cooper Systems and methods for melting scrap metal
US8524146B2 (en) 2009-08-07 2013-09-03 Paul V. Cooper Rotary degassers and components therefor
US10428821B2 (en) 2009-08-07 2019-10-01 Molten Metal Equipment Innovations, Llc Quick submergence molten metal pump
US9328615B2 (en) 2009-08-07 2016-05-03 Molten Metal Equipment Innovations, Llc Rotary degassers and components therefor
US8535603B2 (en) 2009-08-07 2013-09-17 Paul V. Cooper Rotary degasser and rotor therefor
US9382599B2 (en) 2009-08-07 2016-07-05 Molten Metal Equipment Innovations, Llc Rotary degasser and rotor therefor
US8714914B2 (en) 2009-09-08 2014-05-06 Paul V. Cooper Molten metal pump filter
US9108244B2 (en) 2009-09-09 2015-08-18 Paul V. Cooper Immersion heater for molten metal
US20120195748A1 (en) * 2009-09-28 2012-08-02 Ebara Corporation Vortex prevention device and double suction vertical pump having such vortex prevention device
US9297385B2 (en) * 2009-09-28 2016-03-29 Ebara Corporation Vortex prevention device and double suction vertical pump having such vortex prevention device
US9410744B2 (en) 2010-05-12 2016-08-09 Molten Metal Equipment Innovations, Llc Vessel transfer insert and system
US20130039754A1 (en) * 2011-08-11 2013-02-14 Itt Vertical double-suction pump having beneficial axial thrust
US9377027B2 (en) * 2011-08-11 2016-06-28 Itt Manufacturing Enterprises Llc. Vertical double-suction pump having beneficial axial thrust
US9903383B2 (en) 2013-03-13 2018-02-27 Molten Metal Equipment Innovations, Llc Molten metal rotor with hardened top
US9011761B2 (en) 2013-03-14 2015-04-21 Paul V. Cooper Ladle with transfer conduit

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