GB1405339A - Adjustable stator for an internally-meshing screw pump - Google Patents

Adjustable stator for an internally-meshing screw pump

Info

Publication number
GB1405339A
GB1405339A GB310873A GB310873A GB1405339A GB 1405339 A GB1405339 A GB 1405339A GB 310873 A GB310873 A GB 310873A GB 310873 A GB310873 A GB 310873A GB 1405339 A GB1405339 A GB 1405339A
Authority
GB
United Kingdom
Prior art keywords
casing
balls
compressed
sleeve
strips
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
GB310873A
Inventor
M Streicher
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
Priority claimed from DE19722202763 external-priority patent/DE2202763C3/en
Priority claimed from DE19722243479 external-priority patent/DE2243479B2/en
Application filed by Foerdertechnik Streicher GmbH filed Critical Foerdertechnik Streicher GmbH
Publication of GB1405339A publication Critical patent/GB1405339A/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

1405339 Rotary positive-displacement machines. FOERDERTECHNIK STREICHER GmbH and M STREICHER 22 Jan 1973 [21 Jan 1972] 3108/73 Heading F1F To compensate for wear a stator for an internally-meshing screw pump has an elastomeric sleeve 1 that can be compressed radially by turning one or more screws 13 in an annular disc 10 so as to compact balls 12 between a tubular cover 8 and a casing 3, which consists of dovetail-section strips 4, 5, the strips 4 and/or 5 being fixed to the sleeve. In a second embodiment, Figs. 3 and 4 (not shown), the sleeve is compressed by compacting axiallyextending rollers (17, 18), or balls, circumferentially of the casing. In a third embodiment, Figs. 5 and 6 (not shown), compression is effected by tightening a roller chain (22) disposed circumjacent the casing. In a fourth embodiment, Fig. 7, balls 27 are pressed against the casing by axially-loaded bushes 28, 29 with frusto-conic surfaces 29a as shown. In a fifth embodiment, Figs. 8 and 9 (not shown), compression is obtained by contracting one or more bands, or "clips", (31) that clamp axially-extending bars or tubes (30) against the casing. In a sixth embodiment, Figs. 10 and 11, the casing comprises overlapping strips 35 that are loaded radially by balls 49 compressed by frusto-conic ends 50 of bushes 51...55, which in turn are subjected to axial loading by a ring 56 and screw-threaded tiebars 58 only one of which is shown in Fig. 10.
GB310873A 1972-01-21 1973-01-22 Adjustable stator for an internally-meshing screw pump Expired GB1405339A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19722202763 DE2202763C3 (en) 1972-01-21 Adjustable stator for eccentric screw pumps
DE19722243479 DE2243479B2 (en) 1972-09-05 1972-09-05 ADJUSTABLE STATOR FOR ECCENTRIC SCREW PUMPS

Publications (1)

Publication Number Publication Date
GB1405339A true GB1405339A (en) 1975-09-10

Family

ID=25762598

Family Applications (1)

Application Number Title Priority Date Filing Date
GB310873A Expired GB1405339A (en) 1972-01-21 1973-01-22 Adjustable stator for an internally-meshing screw pump

Country Status (4)

Country Link
US (1) US3857654A (en)
FR (1) FR2175403A5 (en)
GB (1) GB1405339A (en)
IT (1) IT978275B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8950169B2 (en) 2012-08-08 2015-02-10 Aaron Feustel Rotary expansible chamber devices having adjustable working-fluid ports, and systems incorporating the same

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4313717A (en) * 1979-10-04 1982-02-02 Kopecky Eugene F Adjustable pressure extrusion pump
EP0083829A1 (en) * 1982-01-11 1983-07-20 Eugene F. Kopecky Adjustable pressure extrusion pump
US5611397A (en) * 1994-02-14 1997-03-18 Wood; Steven M. Reverse Moineau motor and centrifugal pump assembly for producing fluids from a well
US6183226B1 (en) 1986-04-24 2001-02-06 Steven M. Wood Progressive cavity motors using composite materials
DE3826033A1 (en) * 1988-07-30 1990-02-01 Gummi Jaeger Kg Gmbh & Cie METHOD FOR PRODUCING ELASTOMER STATORS FOR Eccentric Screw Pumps
US5171138A (en) * 1990-12-20 1992-12-15 Drilex Systems, Inc. Composite stator construction for downhole drilling motors
GB9303507D0 (en) * 1993-02-22 1993-04-07 Mono Pumps Ltd Progressive cavity pump or motors
US5759019A (en) * 1994-02-14 1998-06-02 Steven M. Wood Progressive cavity pumps using composite materials
US6439834B1 (en) * 1998-10-13 2002-08-27 Arthur Whiting Oil field tool
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
WO2005042910A2 (en) * 2003-10-27 2005-05-12 Dyna-Drill Technologies, Inc. Asymmetric contouring of elastomer liner on lobes in a moineau style power section stator
US7517202B2 (en) * 2005-01-12 2009-04-14 Smith International, Inc. Multiple elastomer layer progressing cavity stators
DE102005013466B3 (en) * 2005-03-21 2006-10-05 Netzsch-Mohnopumpen Gmbh jig
DE102005042559A1 (en) * 2005-09-08 2007-03-15 Netzsch-Mohnopumpen Gmbh stator
US9393648B2 (en) 2010-03-30 2016-07-19 Smith International Inc. Undercut stator for a positive displacment motor
JP6481828B2 (en) * 2015-12-25 2019-03-13 兵神装備株式会社 Uniaxial eccentric screw pump
EP4073383A4 (en) * 2019-12-10 2022-12-14 CIRCOR Pumps North America, LLC Screw pump or machine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT218386B (en) * 1959-06-11 1961-11-27 Seeberger K G Maschinen & Gera Screw pump
US3028812A (en) * 1960-03-01 1962-04-10 Scotti Ambrogio Hydraulic mechanical device for tightening tubular elastic elements
US3084631A (en) * 1962-01-17 1963-04-09 Robbins & Myers Helical gear pump with stator compression
DE1553199C3 (en) * 1966-03-15 1974-03-07 Karl Dipl.-Ing. 7024 Bernhausen Schlecht Adjustable stator for an eccentric screw pump

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8950169B2 (en) 2012-08-08 2015-02-10 Aaron Feustel Rotary expansible chamber devices having adjustable working-fluid ports, and systems incorporating the same
US9080568B2 (en) 2012-08-08 2015-07-14 Aaron Feustel Rotary expansible chamber devices having adjustable arcs of rotation, and systems incorporating the same
US9309766B2 (en) 2012-08-08 2016-04-12 Aaron Feustel Refrigeration system including a rotary expansible chamber device having adjustable working-fluid ports
US10472966B2 (en) 2012-08-08 2019-11-12 Aaron Feustel Rotary expansible chamber devices and systems incorporating the same

Also Published As

Publication number Publication date
US3857654A (en) 1974-12-31
FR2175403A5 (en) 1973-10-19
IT978275B (en) 1974-09-20

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee