EP0265521A4 - Rotor eines bohrlochschneckenmotors und dessen herstellung. - Google Patents
Rotor eines bohrlochschneckenmotors und dessen herstellung.Info
- Publication number
- EP0265521A4 EP0265521A4 EP19860902578 EP86902578A EP0265521A4 EP 0265521 A4 EP0265521 A4 EP 0265521A4 EP 19860902578 EP19860902578 EP 19860902578 EP 86902578 A EP86902578 A EP 86902578A EP 0265521 A4 EP0265521 A4 EP 0265521A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- ροτορa
- ποveρχnοsτi
- rotor
- οκρuzhnοsτi
- elemenτ
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title description 17
- 239000012530 fluid Substances 0.000 claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 231100001261 hazardous Toxicity 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- 235000010446 mineral oil Nutrition 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 235000010585 Ammi visnaga Nutrition 0.000 description 1
- 244000153158 Ammi visnaga Species 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 235000021152 breakfast Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 210000004513 dentition Anatomy 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 210000003739 neck Anatomy 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000036346 tooth eruption Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/02—Fluid rotary type drives
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C1/00—Rotary-piston machines or engines
- F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
- F01C1/10—Rotary-piston machines or engines 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
- F01C1/101—Moineau-type
-
- 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
- F04C2230/00—Manufacture
- F04C2230/20—Manufacture essentially without removing material
- F04C2230/27—Manufacture essentially without removing material by hydroforming
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49229—Prime mover or fluid pump making
- Y10T29/49236—Fluid pump or compressor making
- Y10T29/49242—Screw or gear type, e.g., Moineau type
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49316—Impeller making
- Y10T29/49336—Blade making
- Y10T29/49339—Hollow blade
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49805—Shaping by direct application of fluent pressure
Definitions
- the room is located inside the unit, which has an internal multi-screw type with a higher number of charges, one unit with a higher number of charges; e ⁇ a vin ⁇ vaya ⁇ ve ⁇ - n ⁇ s ⁇ ⁇ m ⁇ vana on ⁇ b ⁇ lad ⁇ e of u ⁇ ug ⁇ -elas ⁇ ichn ⁇ g ⁇ ma ⁇ e- ⁇ iala, ⁇ a ⁇ g ⁇ , ⁇ a ⁇ ⁇ ezina, ⁇ i ⁇ leenn ⁇ y ⁇ vnu ⁇ enney ' ⁇ ve ⁇ - n ⁇ s ⁇ i ⁇ usa s ⁇ a ⁇ a.
- connection of the drive to the drive shaft or flexible shaft of the coupling having threaded connections is not -3- reliably, since the action of the forces of the dynamics when the engine is operating is possible interconnection.
- the main teeth of the indicated motor are also made with the help of a dentition, which has a couple of the above 5 drawbacks.
- the method is concluded in the processing of a 15-piece toothpick on a forming screw screw due to loss of pressure on it (short-circuiting).
- the device implements an accessory device that contains a body, and is equipped with an external unit that is equipped with an external device.
- -Forming rotary screw is located on the internal part of the forming element, which carries out a single function of the spare and a non-removable part.
- Fluid pressure CREATED IN THE LOCATION OF A TUBULAR 25th BILL, INSTALLED INSIDE THE FORMULA OF THE ELEMENT, SUPPLIED WITH COMPLETE COMPLIANCE. ..Promotion of the unit is a single-screw pump;
- a more common disadvantage is the inadvertent use of a high-pressure, non-corrosive medium. This process is also shared by the greater energy consumption.
- the basic task of the invention is to create a rotary engine for the outboard engine for. bu ⁇ eniya s ⁇ vazhin and 15 ⁇ a ⁇ - same s ⁇ s ⁇ ba and us ⁇ ys ⁇ va for eg ⁇ izg ⁇ vleniya, ⁇ ye on account ⁇ ns ⁇ u ⁇ ivny ⁇ ⁇ s ⁇ benn ⁇ s ⁇ ey ⁇ a would ⁇ zv ⁇ lyali improved shi ⁇ ene ⁇ ge ⁇ iches ⁇ uyu ⁇ a ⁇ a ⁇ e ⁇ is ⁇ i ⁇ u dviga ⁇ elya, snizi ⁇ ⁇ - ⁇ e ⁇ i on ⁇ enie, ⁇ vysi ⁇ ⁇ izv ⁇ di ⁇ eln ⁇ s ⁇ izg ⁇ vleniya ⁇ a.
- Fig. 7 cross-section of the device for the manufacture of a unit for the UP-UP line
- 5, Fig. 9 is a partial view of the device for manufacturing the unit with the one-piece plug-in connector in a separate unit.
- Story I was installed inside the station 3, which has the cover 4 of the elastic-elastic material, such as rubber. 06-5 5 lining 4 has an internal helical rotation, which develops anterior teeth 5, the number of which is one unit larger than that of section I. Only 0 ⁇ _ (Fig. 2) of the path I is offset by the negative axis, step 3 by the value of the eccentricity.
- the drive I (fig. ⁇ ) is connected to a shaft 6 of the speed unit 7 of the engine of the 30th flexible hall 8 or drive shaft (not shown). Handle unit 7 supports both radial and radial accessories (not shown) for the operation of an abandoned load. ⁇ the lower end of the shaft 6 of the main assembly 7 is connected to the disengaging tool 9.
- the motor 3 is 35 for connecting the second gear to the second assembly of the second.
- Part I Part I (Figs. 3, 4) for the present invention is completed and contains a defective condition 12 (box) and hard disk -8- connecting connector 13 (fig. 3) connected to it for mounting with flexible shaft 8 (fig. ⁇ ).
- Connector 13 (Fig. 3) is equipped with elements 14 for connecting the flexible shaft 8, for example, threaded. There is no reason to be
- connection of the connector 13 is in the case of the case 12 by the operation of the case • on the outside of the building.
- Improvement of the indicated ratio of more than 1.05 leads to a decrease in SDA .
- '' of the engine due to an increase in the number of operating hours), to lowering the operating speed by learning -9- and bend and ⁇ za ⁇ udneniyam ⁇ i izg ⁇ vlenii ⁇ a ⁇ ed- ⁇ z ⁇ m zayavlyaemy ⁇ ⁇ s ⁇ ba and u ⁇ ys ⁇ va, ⁇ ye budu ⁇ ⁇ i- ⁇ any lower v ⁇ led ⁇ vie znachi ⁇ eln ⁇ g ⁇ ⁇ vysheniya ⁇ ab ⁇ chi ⁇ pressure Nij, ene ⁇ g ⁇ em ⁇ i ⁇ tse ⁇ a izg ⁇ vleniya ⁇ a.
- the short-circuiting process loses stability and its cross-section is deformed;
- the short-circuiting plug-in is easy to handle, and the product is plugged in and the plug is plugged in and ⁇ ne ⁇ -
- the first stage may occur if the pressure of the fluid is reduced.
- ⁇ s ⁇ l ⁇ u on e ⁇ y s ⁇ adii ⁇ eshae ⁇ sya task ⁇ e ⁇ d ⁇ leniya us ⁇ ychiv ⁇ s ⁇ i tsilind ⁇ i- 5 ches ⁇ y ⁇ my ⁇ ubcha ⁇ y zag ⁇ v ⁇ i and ⁇ edva ⁇ i ⁇ eln ⁇ g ⁇ go ⁇ - mi ⁇ vaniya vin ⁇ v ⁇ y ⁇ ve ⁇ n ⁇ s ⁇ i having ⁇ same chisl ⁇ za ⁇ - d ⁇ v and ⁇ u same step size vin ⁇ v ⁇ y line ch ⁇ and g ⁇ v ⁇ - g ⁇ ⁇ a. Obtained after the first graduation, a small winnings in the section for the screw of a large multi-party are in progress .
- the process also creates pressure from a fluid from the outside, and engages in an external load.
- the device includes a conveniently accessible cabinet 20, and a separate electronic housing is located inside the unit.
- the centers 22, 22 are equipped with the accessories 26, 26, which are made, for example, in the form of rubber "0" - a common ring.
- Center 22 has a snubber
- the internal part of the body 20 is equipped with a room 31 for supplying pressure of the fluid.
- FIG. 3 corresponds to the aforementioned method, and it is manufactured in two stages by a floating element 21 (Fig. 6). It is possible to replace it with an optional 2 ⁇ '' pull-out element for initial installation in the form of a win-
- the device is installed and works as follows. ⁇ ⁇ ubcha ⁇ uyu zag ⁇ v ⁇ u ⁇ a 24 ⁇ edva ⁇ i ⁇ eln ⁇ 5 ⁇ b ⁇ ab ⁇ an- hydrochloric ⁇ na ⁇ uzhn ⁇ y ⁇ ve ⁇ n ⁇ s ⁇ i d ⁇ ⁇ ebuem ⁇ y for ⁇ a chis ⁇ - ⁇ y ⁇ ve ⁇ n ⁇ s ⁇ i (shli ⁇ vannuyu, ⁇ li ⁇ vannuyu) vv ⁇ dya ⁇ sh ⁇ muyu- conductive elemen ⁇ 21.
- a flowing medium for example a mineral oil
- a flowing medium for example a mineral oil
- the quick start is 24;
- the first element is 21 of the shell part of the case.
- the external accessory is a quick accessory for a shortcut 24 and is equipped with a recess 15 in the form of an eccentric groove.
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Earth Drilling (AREA)
- Manufacture Of Motors, Generators (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
- Drilling And Boring (AREA)
- Cereal-Derived Products (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Press Drives And Press Lines (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Supercharger (AREA)
- Turning (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT86902578T ATE75521T1 (de) | 1986-01-31 | 1986-01-31 | Rotor eines bohrlochschneckenmotors und dessen herstellung. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/SU1986/000008 WO1987004753A1 (fr) | 1986-01-31 | 1986-01-31 | Rotor de moteur de fond a entrainement par vis, ainsi que son procede et dispositif de realisation |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0265521A1 EP0265521A1 (de) | 1988-05-04 |
| EP0265521A4 true EP0265521A4 (de) | 1989-03-14 |
| EP0265521B1 EP0265521B1 (de) | 1992-04-29 |
Family
ID=21616965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP86902578A Expired - Lifetime EP0265521B1 (de) | 1986-01-31 | 1986-01-31 | Rotor eines bohrlochschneckenmotors und dessen herstellung |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US4909337A (de) |
| EP (1) | EP0265521B1 (de) |
| JP (1) | JPH0633702B2 (de) |
| AT (1) | ATE75521T1 (de) |
| DE (1) | DE3685113D1 (de) |
| DK (1) | DK476087A (de) |
| NO (1) | NO172003C (de) |
| PT (1) | PT82181B (de) |
| WO (1) | WO1987004753A1 (de) |
Families Citing this family (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4926949A (en) * | 1988-12-07 | 1990-05-22 | Drilex Systems, Inc. | Thermal shield for drilling motors |
| JPH04503839A (ja) * | 1989-12-08 | 1992-07-09 | ペルムスキ フィリアル ウセソユズノゴ ナウチノ イスレドヴァテルスコゴ インスチテュータ ブロヴォイ テクニキ | 坑井掘削用の螺旋ダウンホールモータの作業部材 |
| US5090497A (en) * | 1990-07-30 | 1992-02-25 | Baker Hughes Incorporated | Flexible coupling for progressive cavity downhole drilling motor |
| US5135059A (en) * | 1990-11-19 | 1992-08-04 | Teleco Oilfield Services, Inc. | Borehole drilling motor with flexible shaft coupling |
| JP3650183B2 (ja) * | 1995-10-13 | 2005-05-18 | 栃木富士産業株式会社 | スクリューロータの加工方法 |
| DE69818099T2 (de) | 1997-12-18 | 2004-03-25 | Baker-Hughes Inc., Houston | Verfahren zur herstellung von statormanteln für exzenterschneckenpumpen |
| US6309195B1 (en) * | 1998-06-05 | 2001-10-30 | Halliburton Energy Services, Inc. | Internally profiled stator tube |
| US6241494B1 (en) * | 1998-09-18 | 2001-06-05 | Schlumberger Technology Company | Non-elastomeric stator and downhole drilling motors incorporating same |
| RU2227849C2 (ru) * | 1999-12-14 | 2004-04-27 | Открытое акционерное общество Научно-производственное объединение "Искра" | Способ формирования проточного тракта статора винтового насоса |
| RU2187615C1 (ru) * | 2001-01-18 | 2002-08-20 | Открытое акционерное общество Научно-производственное объединение "Буровая техника" | Винтовой забойный двигатель |
| US6495405B2 (en) * | 2001-01-29 | 2002-12-17 | Sharp Laboratories Of America, Inc. | Method of optimizing channel characteristics using laterally-crystallized ELA poly-Si films |
| US20070000695A1 (en) * | 2005-06-30 | 2007-01-04 | Baker Hughes Incorporated | Mud motor force absorption tools |
| US7828533B2 (en) * | 2006-01-26 | 2010-11-09 | National-Oilwell, L.P. | Positive displacement motor/progressive cavity pump |
| RU2334073C2 (ru) * | 2006-07-18 | 2008-09-20 | Вигдор Соломонович Будянский | Забойный двигатель |
| RU2341637C2 (ru) * | 2007-01-09 | 2008-12-20 | Государственное образовательное учреждение высшего профессионального образования "Тюменский государственный нефтегазовый университет" | Малогабаритный винтовой забойный двигатель (варианты) |
| EP2136962B1 (de) | 2007-04-18 | 2010-10-20 | National Oilwell Varco, L.P. | Antriebssysteme und-verfahren mit einer spindel mit langer reichweite |
| GB0819794D0 (en) | 2008-10-29 | 2008-12-03 | Nat Oilwell Varco Lp | Spindle drive systems and methods |
| US8469104B2 (en) * | 2009-09-09 | 2013-06-25 | Schlumberger Technology Corporation | Valves, bottom hole assemblies, and method of selectively actuating a motor |
| US20110116961A1 (en) | 2009-11-13 | 2011-05-19 | Hossein Akbari | Stators for downhole motors, methods for fabricating the same, and downhole motors incorporating the same |
| US9347266B2 (en) * | 2009-11-13 | 2016-05-24 | Schlumberger Technology Corporation | Stator inserts, methods of fabricating the same, and downhole motors incorporating the same |
| US8777598B2 (en) | 2009-11-13 | 2014-07-15 | Schlumberger Technology Corporation | Stators for downwhole motors, methods for fabricating the same, and downhole motors incorporating the same |
| US9309884B2 (en) | 2010-11-29 | 2016-04-12 | Schlumberger Technology Corporation | Downhole motor or pump components, method of fabrication the same, and downhole motors incorporating the same |
| US8640793B2 (en) * | 2011-10-19 | 2014-02-04 | Earth Tool Company, Llc | Dynamic steering tool |
| DE112012004811T5 (de) * | 2011-11-18 | 2014-07-31 | Smith International, Inc. | Verdrängungsmotor mit radial eingeschränktem Rotormitnehmer |
| US20150122549A1 (en) * | 2013-11-05 | 2015-05-07 | Baker Hughes Incorporated | Hydraulic tools, drilling systems including hydraulic tools, and methods of using hydraulic tools |
| CN104563972B (zh) * | 2015-01-12 | 2017-11-14 | 重庆科技学院 | 小功率深井抽油机 |
| US10968699B2 (en) * | 2017-02-06 | 2021-04-06 | Roper Pump Company | Lobed rotor with circular section for fluid-driving apparatus |
| JP6810937B2 (ja) * | 2017-06-29 | 2021-01-13 | 国立大学法人 東京大学 | 海洋資源揚鉱装置およびこれを用いた海洋資源の揚鉱方法 |
| JP6818324B2 (ja) * | 2017-06-29 | 2021-01-20 | 国立大学法人 東京大学 | 海洋資源揚鉱装置およびこれを用いた海洋資源の揚鉱方法 |
| JP6954534B2 (ja) * | 2017-10-20 | 2021-10-27 | 国立大学法人 東京大学 | 海洋資源採鉱装置および海洋資源の採鉱方法、並びに、海洋資源揚鉱装置および海洋資源の揚鉱方法 |
| US10895256B2 (en) | 2017-12-14 | 2021-01-19 | Schlumberger Technology Corporation | Stator and rotor profile for improved power section performance and reliability |
| CN109915044B (zh) * | 2019-03-22 | 2023-11-21 | 中国地质大学(北京) | 一种装配式螺杆钻具金属定子轴向加工装配工艺 |
| US20260062999A1 (en) * | 2024-08-28 | 2026-03-05 | Thru Tubing Solutions, Inc. | Downhole fluid motor and associated methods |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1378442A (en) * | 1917-11-16 | 1921-05-17 | Lanston Monotype Machine Co | Process of corrugating cylindrical bodies |
| US2463341A (en) * | 1946-02-25 | 1949-03-01 | Fmc Corp | Motor pump with sand trap and piming means |
| US2464011A (en) * | 1946-11-29 | 1949-03-08 | Fmc Corp | Helical hollow rotor pump |
| US2532145A (en) * | 1948-03-02 | 1950-11-28 | Robbins & Myers | Pump |
| US3512904A (en) * | 1968-05-24 | 1970-05-19 | Clifford H Allen | Progressing cavity helical pump |
| US4127368A (en) * | 1971-02-19 | 1978-11-28 | Langer Paul G | Rotor for eccentric helical gear pump |
| SU436944A1 (de) * | 1971-11-29 | 1974-07-25 | ||
| DE2240423A1 (de) * | 1972-08-17 | 1974-03-07 | Hermetic Pumpen Gmbh | Foerdereinrichtung, insbesondere foerderpumpe |
| US3889506A (en) * | 1974-03-25 | 1975-06-17 | Western Electric Co | Method and apparatus for forming a tubular billet about a mandrel using multi-directional stress |
| HU184664B (en) * | 1979-03-14 | 1984-09-28 | Olajipari Foevallal Tervezoe | Hydraulic drilling motor for deep drilling |
| US4567953A (en) * | 1980-12-10 | 1986-02-04 | Baldenko Dmitry F | Bottom-hole multistart screw motor |
| US4585401A (en) * | 1984-02-09 | 1986-04-29 | Veesojuzny Ordena Trudovogo Krasnogo Znameni Naucho-Issle | Multistage helical down-hole machine with frictional coupling of working elements, and method therefor |
-
1986
- 1986-01-31 AT AT86902578T patent/ATE75521T1/de not_active IP Right Cessation
- 1986-01-31 EP EP86902578A patent/EP0265521B1/de not_active Expired - Lifetime
- 1986-01-31 WO PCT/SU1986/000008 patent/WO1987004753A1/ru not_active Ceased
- 1986-01-31 DE DE8686902578T patent/DE3685113D1/de not_active Expired - Fee Related
- 1986-01-31 JP JP61502195A patent/JPH0633702B2/ja not_active Expired - Lifetime
- 1986-01-31 US US07/131,045 patent/US4909337A/en not_active Expired - Fee Related
- 1986-03-12 PT PT82181A patent/PT82181B/pt not_active IP Right Cessation
-
1987
- 1987-09-11 DK DK476087A patent/DK476087A/da not_active Application Discontinuation
- 1987-09-16 NO NO87873890A patent/NO172003C/no unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO1987004753A1 (fr) | 1987-08-13 |
| ATE75521T1 (de) | 1992-05-15 |
| NO873890L (no) | 1987-09-16 |
| PT82181B (pt) | 1992-05-29 |
| NO873890D0 (no) | 1987-09-16 |
| DK476087D0 (da) | 1987-09-11 |
| JPS63502292A (ja) | 1988-09-01 |
| DE3685113D1 (de) | 1992-06-04 |
| EP0265521A1 (de) | 1988-05-04 |
| JPH0633702B2 (ja) | 1994-05-02 |
| EP0265521B1 (de) | 1992-04-29 |
| NO172003B (no) | 1993-02-15 |
| US4909337A (en) | 1990-03-20 |
| NO172003C (no) | 1993-05-26 |
| PT82181A (pt) | 1986-09-16 |
| DK476087A (da) | 1987-09-11 |
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