GB970619A - Helical gear pump with stator compression - Google Patents

Helical gear pump with stator compression

Info

Publication number
GB970619A
GB970619A GB38365/62A GB3836562A GB970619A GB 970619 A GB970619 A GB 970619A GB 38365/62 A GB38365/62 A GB 38365/62A GB 3836562 A GB3836562 A GB 3836562A GB 970619 A GB970619 A GB 970619A
Authority
GB
United Kingdom
Prior art keywords
stator
rotor
elements
adjusting screws
helical gear
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
GB38365/62A
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.)
Robbins and Myers Inc
Original Assignee
Robbins and Myers Inc
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 Robbins and Myers Inc filed Critical Robbins and Myers Inc
Publication of GB970619A publication Critical patent/GB970619A/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
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
    • F04C2/1071—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type
    • F04C2/1073—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type where one member is stationary while the other member rotates and orbits
    • F04C2/1075—Construction of the stationary member

Abstract

970,619. Rotary pumps. ROBBINS & MYERS Inc. Oct. 10, 1962 [Jan. 17, 1962], No. 38365/62. Heading F1F. A helical gear pump comprises a rigid externally threaded rotor 14, Fig. 1, a resilient stator 17 internally and externally threaded to provide a part of constant wall thickness having one more thread than the rotor and a pair of liner elements 18, 19, Fig. 2, conforming internally to the external profile of the stator and externally to the cylindrical bore of a two-part casing 11. Flanges 17a on the stator 17 permit it to be clamped respectively between the casing 11 and inlet and outlet fittings 13, 12 and locating lugs 17b prevent it from being rotated. Adjusting screws 20, 21 when adjusted inwardly reduce the clearance provided between the elements 18, 19 and the lugs 17b to take up wear of the rotor and/or stator. More than two liner elements with a corresponding number of adjusting screws may be fitted or alternatively a single adjusting screw may be used. Instead of adjusting screws the elements may be pressed radially inwardly by pneumatic or hydraulic pressure. The invention may also be applied when the pump is used as a motor or to a compressor having a tapered rotor and stator.
GB38365/62A 1962-01-17 1962-10-10 Helical gear pump with stator compression Expired GB970619A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US166802A US3084631A (en) 1962-01-17 1962-01-17 Helical gear pump with stator compression

Publications (1)

Publication Number Publication Date
GB970619A true GB970619A (en) 1964-09-23

Family

ID=22604754

Family Applications (1)

Application Number Title Priority Date Filing Date
GB38365/62A Expired GB970619A (en) 1962-01-17 1962-10-10 Helical gear pump with stator compression

Country Status (2)

Country Link
US (1) US3084631A (en)
GB (1) GB970619A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0209099A1 (en) * 1985-07-17 1987-01-21 Netzsch-Mohnopumpen GmbH Stator for a helical gear pump

Families Citing this family (42)

* Cited by examiner, † Cited by third party
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GB1067014A (en) * 1964-10-30 1967-04-26 Unitex Ltd Improvements in helical gear pumps
DE1553199C3 (en) * 1966-03-15 1974-03-07 Karl Dipl.-Ing. 7024 Bernhausen Schlecht Adjustable stator for an eccentric screw pump
US3499389A (en) * 1967-04-19 1970-03-10 Seeberger Kg Worm pump
IT978275B (en) * 1972-01-21 1974-09-20 Streicher Gmbh ADJUSTABLE STATOR FOR PUMPS WITH ECCENTRIC SCREW
US3838949A (en) * 1973-03-15 1974-10-01 Sumimoto Shipbuilding & Machin Helical gear pump
JPS5717189B2 (en) * 1973-06-19 1982-04-09
US4313717A (en) * 1979-10-04 1982-02-02 Kopecky Eugene F Adjustable pressure extrusion pump
US4558954A (en) * 1984-12-12 1985-12-17 Barr Robert A Extruder screw and positive displacement wave pump assembly
US4676725A (en) * 1985-12-27 1987-06-30 Hughes Tool Company Moineau type gear mechanism with resilient sleeve
US4818197A (en) * 1987-01-20 1989-04-04 Halliburton Company Progessive cavity pump
DE4006339C2 (en) * 1990-03-01 1994-08-04 Gd Anker Gmbh & Co Kg Stator for an eccentric screw pump
GB2244517B (en) * 1990-05-31 1994-05-04 Mono Pumps Ltd Helical gear pump and stator
US5171138A (en) * 1990-12-20 1992-12-15 Drilex Systems, Inc. Composite stator construction for downhole drilling motors
DE4134853C1 (en) * 1991-05-22 1992-11-12 Netzsch-Mohnopumpen Gmbh, 8264 Waldkraiburg, De
US5527159A (en) * 1993-11-10 1996-06-18 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Rotary blood pump
US5832604A (en) * 1995-09-08 1998-11-10 Hydro-Drill, Inc. Method of manufacturing segmented stators for helical gear pumps and motors
US6093004A (en) * 1998-02-12 2000-07-25 Zenergy Llc Pump/motor apparatus using 2-lobe stator
DE10241753C1 (en) * 2002-09-10 2003-11-13 Netzsch Mohnopumpen Gmbh Stator for eccentric screw pump has outside of hollow body defining rotor space enclosed by manrle assembled from linked segments
US6881045B2 (en) * 2003-06-19 2005-04-19 Robbins & Myers Energy Systems, L.P. Progressive cavity pump/motor
US7192260B2 (en) * 2003-10-09 2007-03-20 Lehr Precision, Inc. Progressive cavity pump/motor stator, and apparatus and method to manufacture same by electrochemical machining
CA2543554C (en) * 2003-10-27 2010-03-09 Dyna-Drill Technologies, Inc. Asymmetric contouring of elastomer liner on lobes in a moineau style power section stator
US7214042B2 (en) * 2004-09-23 2007-05-08 Moyno, Inc. Progressing cavity pump with dual material stator
US7517202B2 (en) * 2005-01-12 2009-04-14 Smith International, Inc. Multiple elastomer layer progressing cavity stators
GB0524998D0 (en) * 2005-12-08 2006-01-18 Schlumberger Holdings Steerable drilling system
US7739792B2 (en) * 2006-07-31 2010-06-22 Schlumberger Technology Corporation Method of forming controlled thickness resilient material lined stator
US9163629B2 (en) 2006-07-31 2015-10-20 Schlumberger Technology Corporation Controlled thickness resilient material lined stator and method of forming
US8337182B2 (en) * 2006-10-03 2012-12-25 Schlumberger Technology Corporation Skinning of progressive cavity apparatus
US20080142268A1 (en) * 2006-12-13 2008-06-19 Geoffrey Downton Rotary steerable drilling apparatus and method
ATE485128T1 (en) 2007-04-18 2010-11-15 Nat Oilwell Varco Lp LONG REACH SPINDLE DRIVE SYSTEMS AND METHODS
US8182252B2 (en) * 2007-10-30 2012-05-22 Moyno, Inc. Progressing cavity pump with split stator
US8215014B2 (en) 2007-10-31 2012-07-10 Moyno, Inc. Method for making a stator
US7941906B2 (en) * 2007-12-31 2011-05-17 Schlumberger Technology Corporation Progressive cavity apparatus with transducer and methods of forming and use
GB0819794D0 (en) * 2008-10-29 2008-12-03 Nat Oilwell Varco Lp Spindle drive systems and methods
DE102009024088A1 (en) * 2009-06-06 2010-12-09 Zeus Gmbh Tire filler, method for producing a tire filling and apparatus for carrying out the method
US9393648B2 (en) 2010-03-30 2016-07-19 Smith International Inc. Undercut stator for a positive displacment motor
JP5605776B2 (en) * 2010-06-07 2014-10-15 兵神装備株式会社 Uniaxial eccentric screw pump
DE102012008761B4 (en) * 2012-05-05 2016-01-21 Netzsch Pumpen & Systeme Gmbh Divided stator jacket
CN102705233A (en) * 2012-06-04 2012-10-03 中国石油天然气股份有限公司 Method for oil-extraction equal-wall-thickness screw pump stator and rotor cooperation
US20150122549A1 (en) * 2013-11-05 2015-05-07 Baker Hughes Incorporated Hydraulic tools, drilling systems including hydraulic tools, and methods of using hydraulic tools
JP6421372B2 (en) * 2015-01-09 2018-11-14 兵神装備株式会社 Uniaxial eccentric screw pump
BR102019005114B1 (en) * 2019-03-15 2023-12-05 Leandro José Agostini PROGRESSIVE CAVITY PUMP FOR TINTOMETRIC INDUSTRY
JP6824537B1 (en) * 2019-09-24 2021-02-03 兵神装備株式会社 Uniaxial eccentric screw pump

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2527673A (en) * 1947-02-28 1950-10-31 Robbins & Myers Internal helical gear pump
SE164551C1 (en) * 1952-10-23 1958-09-02
US2765114A (en) * 1953-06-15 1956-10-02 Robbins & Myers Cone type compressor
GB799996A (en) * 1955-07-11 1958-08-13 Over Officine Venete Riunite S Improvements in or relating to screw pumps
US2796029A (en) * 1955-08-15 1957-06-18 Robbins & Myers Helical gear pump with adjustable stator compression
US2874643A (en) * 1957-10-15 1959-02-24 Robbins & Myers Helical gear pump with stator compression
US3028812A (en) * 1960-03-01 1962-04-10 Scotti Ambrogio Hydraulic mechanical device for tightening tubular elastic elements

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0209099A1 (en) * 1985-07-17 1987-01-21 Netzsch-Mohnopumpen GmbH Stator for a helical gear pump

Also Published As

Publication number Publication date
US3084631A (en) 1963-04-09

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