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GB2021199A - Rotary Positive-Displacement Fluid-Machines - Google Patents

Rotary Positive-Displacement Fluid-Machines

Info

Publication number
GB2021199A
GB2021199A GB7913613A GB7913613A GB2021199A GB 2021199 A GB2021199 A GB 2021199A GB 7913613 A GB7913613 A GB 7913613A GB 7913613 A GB7913613 A GB 7913613A GB 2021199 A GB2021199 A GB 2021199A
Authority
GB
United Kingdom
Prior art keywords
shells
sleeve
machines
displacement fluid
rotary positive
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.)
Withdrawn
Application number
GB7913613A
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.)
Foerdertechnik Streicher GmbH
Original Assignee
Foerdertechnik Streicher GmbH
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 Foerdertechnik Streicher GmbH filed Critical Foerdertechnik Streicher GmbH
Publication of GB2021199A publication Critical patent/GB2021199A/en
Withdrawn legal-status Critical Current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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

A stator in or for a Moineau-type screw pump includes an elastomeric sleeve 1 removably mounted in a rigid casing comprising a pair of shells 2 held together by bolts 3. Optionally, rotation of the sleeve is prevented by pins 10 thereon projecting into openings 11 in the shells. The shells may be constituted by a series of rings, Figures 9-13 (not shown). To reduce wear of internal surfaces 6 by the rotor, grooves 12 may be formed in the sleeve. Alternatively, the casing may comprise a sheet metal band instead of the shells, Figures 7 and 8 (not shown). <IMAGE>
GB7913613A 1978-04-20 1979-04-19 Rotary Positive-Displacement Fluid-Machines Withdrawn GB2021199A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782817280 DE2817280A1 (en) 1978-04-20 1978-04-20 STATOR FOR ECCENTRIC SCREW PUMPS

Publications (1)

Publication Number Publication Date
GB2021199A true GB2021199A (en) 1979-11-28

Family

ID=6037578

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7913613A Withdrawn GB2021199A (en) 1978-04-20 1979-04-19 Rotary Positive-Displacement Fluid-Machines

Country Status (3)

Country Link
DE (1) DE2817280A1 (en)
FR (1) FR2423657A1 (en)
GB (1) GB2021199A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2124305A (en) * 1982-07-20 1984-02-15 Mono Pumps Ltd Rotary positive-displacement pumps
FR2633673A1 (en) * 1988-07-01 1990-01-05 Vennin Henri Helical volumetric pump or motor
WO1992020923A1 (en) * 1991-05-22 1992-11-26 Netzsch-Mohnopumpen Gmbh Casing for an eccentric worm-screw pump
WO2010108487A3 (en) * 2009-03-26 2012-03-29 Netzsch-Mohnopumpen Gmbh Stator for eccentric screw pumps
WO2013182922A1 (en) * 2012-06-04 2013-12-12 Indian Institute Of Technology Madras Progressive cavity pump
WO2013163995A3 (en) * 2012-05-04 2014-05-08 Netzsch Pumpen Und Systeme Gmbh Self-fixing stator housing
US20140308145A1 (en) * 2013-04-11 2014-10-16 Cameron International Corporation Progressing cavity stator
WO2016057294A1 (en) * 2014-10-07 2016-04-14 Access Business Group International Llc Personal formulation device
US11268385B2 (en) * 2019-10-07 2022-03-08 Nov Canada Ulc Hybrid core progressive cavity pump
US11813580B2 (en) 2020-09-02 2023-11-14 Nov Canada Ulc Static mixer suitable for additive manufacturing

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HU181561B (en) * 1980-07-17 1983-10-28 Femmechanika Stator for single-spindle screw pump
DE3525529C1 (en) * 1985-07-17 1986-08-07 Netzsch-Mohnopumpen GmbH, 8264 Waldkraiburg Stator for eccentric screw pumps
US4676725A (en) * 1985-12-27 1987-06-30 Hughes Tool Company Moineau type gear mechanism with resilient sleeve
US8439659B2 (en) 2007-08-17 2013-05-14 Seepex Gmbh Eccentric screw pump with split stator

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2124305A (en) * 1982-07-20 1984-02-15 Mono Pumps Ltd Rotary positive-displacement pumps
FR2633673A1 (en) * 1988-07-01 1990-01-05 Vennin Henri Helical volumetric pump or motor
WO1992020923A1 (en) * 1991-05-22 1992-11-26 Netzsch-Mohnopumpen Gmbh Casing for an eccentric worm-screw pump
AU643621B2 (en) * 1991-05-22 1993-11-18 Netzsch-Mohnopumpen Gmbh Casing for an eccentric worm-screw pump
US5318416A (en) * 1991-05-22 1994-06-07 Netzsch-Mohnopumpen Gmbh Casing of an eccentric worm pump designed to burst at preselected pressure
WO2010108487A3 (en) * 2009-03-26 2012-03-29 Netzsch-Mohnopumpen Gmbh Stator for eccentric screw pumps
JP2015519505A (en) * 2012-05-04 2015-07-09 ネッチュ プンペン ウント システーメ ゲーエムベーハーＮｅｔｚｓｃｈ Ｐｕｍｐｅｎ ＆ Ｓｙｓｔｅｍｅ Ｇｍｂｈ Self-fixing stator housing
CN104271953B (en) * 2012-05-04 2016-08-17 耐驰泵及系统有限公司 Self-retaining formula stator casing
US9683566B2 (en) 2012-05-04 2017-06-20 Netzsch Pumpen & Systeme Gmbh Self-fixing stator housing
CN104271953A (en) * 2012-05-04 2015-01-07 奈赤－泵和系统有限责任公司 Self-fixing stator housing
WO2013163995A3 (en) * 2012-05-04 2014-05-08 Netzsch Pumpen Und Systeme Gmbh Self-fixing stator housing
RU2601653C2 (en) * 2012-05-04 2016-11-10 Неч Пумпен Унд Зюстеме Гмбх Self-attaching stator casing
WO2013182922A1 (en) * 2012-06-04 2013-12-12 Indian Institute Of Technology Madras Progressive cavity pump
US9404493B2 (en) 2012-06-04 2016-08-02 Indian Institute Of Technology Madras Progressive cavity pump including a bearing between the rotor and stator
US9133841B2 (en) * 2013-04-11 2015-09-15 Cameron International Corporation Progressing cavity stator with metal plates having apertures with englarged ends
US20140308145A1 (en) * 2013-04-11 2014-10-16 Cameron International Corporation Progressing cavity stator
WO2016057294A1 (en) * 2014-10-07 2016-04-14 Access Business Group International Llc Personal formulation device
CN106999881A (en) * 2014-10-07 2017-08-01 捷通国际有限公司 Personal device for formulating
US11268385B2 (en) * 2019-10-07 2022-03-08 Nov Canada Ulc Hybrid core progressive cavity pump
US11813580B2 (en) 2020-09-02 2023-11-14 Nov Canada Ulc Static mixer suitable for additive manufacturing

Also Published As

Publication number Publication date
FR2423657A1 (en) 1979-11-16
DE2817280A1 (en) 1979-10-25

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)