US3286642A - Hydraulic balancing device in screw pumps - Google Patents

Hydraulic balancing device in screw pumps Download PDF

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Publication number
US3286642A
US3286642A US424047A US42404765A US3286642A US 3286642 A US3286642 A US 3286642A US 424047 A US424047 A US 424047A US 42404765 A US42404765 A US 42404765A US 3286642 A US3286642 A US 3286642A
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US
United States
Prior art keywords
stator
pressure
inlet
outlet
pump
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
US424047A
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English (en)
Inventor
Lindberg Gustav Rudolf
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.)
Flygts Pumpar AB
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Flygts Pumpar AB
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 Flygts Pumpar AB filed Critical Flygts Pumpar AB
Application granted granted Critical
Publication of US3286642A publication Critical patent/US3286642A/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
    • 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

Definitions

  • the present invention relates to screw pumps of the type incorporating a single rotor acting in conjunction with a fixed stator, and more particularly to a hydraulic balacing device acting on the stator, by means f which the pump pressure can be raised and the general efficiency of the pump can be improved.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
US424047A 1964-08-18 1965-01-07 Hydraulic balancing device in screw pumps Expired - Lifetime US3286642A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9970/64A SE307736B (enrdf_load_stackoverflow) 1964-08-18 1964-08-18

Publications (1)

Publication Number Publication Date
US3286642A true US3286642A (en) 1966-11-22

Family

ID=20277923

Family Applications (1)

Application Number Title Priority Date Filing Date
US424047A Expired - Lifetime US3286642A (en) 1964-08-18 1965-01-07 Hydraulic balancing device in screw pumps

Country Status (5)

Country Link
US (1) US3286642A (enrdf_load_stackoverflow)
DE (1) DE1302962B (enrdf_load_stackoverflow)
FR (1) FR1435427A (enrdf_load_stackoverflow)
GB (1) GB1033879A (enrdf_load_stackoverflow)
SE (1) SE307736B (enrdf_load_stackoverflow)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3354537A (en) * 1965-12-01 1967-11-28 Walter J O'connor Renewable moineau-type pumping mechanism
US4669961A (en) * 1986-05-06 1987-06-02 Hughes Tool Company Thrust balancing device for a progressing cavity pump
US6093004A (en) * 1998-02-12 2000-07-25 Zenergy Llc Pump/motor apparatus using 2-lobe stator
US20050100468A1 (en) * 2002-09-20 2005-05-12 Helmut Bauer Eccentric screw-type pump with spare stator
US20060216183A1 (en) * 2003-03-25 2006-09-28 Obschestvo S Ogranichennoi Otvetstvennostyu "Firma,,Radius-Servis"Ul. Geroev Khasana, D.50 Gerotor mechanism for a screw hydraulic machine
US20080085203A1 (en) * 2006-10-06 2008-04-10 Moyno, Inc. Progressing cavity pump with wobble stator and magnetic drive
CN102536794A (zh) * 2011-12-31 2012-07-04 重庆明珠机电有限公司 自润滑单螺杆泵
CN106678036A (zh) * 2015-11-10 2017-05-17 耐驰（兰州）泵业有限公司 用于偏心蜗杆泵的可调整定子

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2505136A (en) * 1946-06-18 1950-04-25 Robbins & Myers Internal helical gear pump
US2862454A (en) * 1954-06-25 1958-12-02 Robbins & Myers Helical gear pumps
US2874643A (en) * 1957-10-15 1959-02-24 Robbins & Myers Helical gear pump with stator compression
US3011445A (en) * 1957-11-13 1961-12-05 Robbin & Myers Inc Helical gear pump with by-pass

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2505136A (en) * 1946-06-18 1950-04-25 Robbins & Myers Internal helical gear pump
US2862454A (en) * 1954-06-25 1958-12-02 Robbins & Myers Helical gear pumps
US2874643A (en) * 1957-10-15 1959-02-24 Robbins & Myers Helical gear pump with stator compression
US3011445A (en) * 1957-11-13 1961-12-05 Robbin & Myers Inc Helical gear pump with by-pass

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3354537A (en) * 1965-12-01 1967-11-28 Walter J O'connor Renewable moineau-type pumping mechanism
US4669961A (en) * 1986-05-06 1987-06-02 Hughes Tool Company Thrust balancing device for a progressing cavity pump
US6093004A (en) * 1998-02-12 2000-07-25 Zenergy Llc Pump/motor apparatus using 2-lobe stator
US20050100468A1 (en) * 2002-09-20 2005-05-12 Helmut Bauer Eccentric screw-type pump with spare stator
US7104770B2 (en) * 2002-09-20 2006-09-12 Netzsch-Mohnopumpen Gmbh Eccentric screw-type pump with spare stator
US20060216183A1 (en) * 2003-03-25 2006-09-28 Obschestvo S Ogranichennoi Otvetstvennostyu "Firma,,Radius-Servis"Ul. Geroev Khasana, D.50 Gerotor mechanism for a screw hydraulic machine
US7226279B2 (en) * 2003-03-25 2007-06-05 Obschestvi S Ogranichennoi Otvetstvennostyu “Firma Radius-Servis” Gerotor mechanism for a screw hydraulic machine
US20080085203A1 (en) * 2006-10-06 2008-04-10 Moyno, Inc. Progressing cavity pump with wobble stator and magnetic drive
US7553139B2 (en) * 2006-10-06 2009-06-30 Moyno, Inc. Progressing cavity pump with wobble stator and magnetic drive
CN102536794A (zh) * 2011-12-31 2012-07-04 重庆明珠机电有限公司 自润滑单螺杆泵
CN102536794B (zh) * 2011-12-31 2015-01-14 重庆明珠机电有限公司 自润滑单螺杆泵
CN106678036A (zh) * 2015-11-10 2017-05-17 耐驰（兰州）泵业有限公司 用于偏心蜗杆泵的可调整定子

Also Published As

Publication number Publication date
GB1033879A (en) 1966-06-22
FR1435427A (fr) 1966-04-15
SE307736B (enrdf_load_stackoverflow) 1969-01-13
DE1302962B (enrdf_load_stackoverflow) 1971-04-08

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