WO2005005836A1 - Machine volumetrique a vis du type rotatif - Google Patents

Machine volumetrique a vis du type rotatif Download PDF

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Publication number
WO2005005836A1
WO2005005836A1 PCT/IB2003/003239 IB0303239W WO2005005836A1 WO 2005005836 A1 WO2005005836 A1 WO 2005005836A1 IB 0303239 W IB0303239 W IB 0303239W WO 2005005836 A1 WO2005005836 A1 WO 2005005836A1
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WO
WIPO (PCT)
Prior art keywords
elements
screw machine
rotary screw
rotor
conjugated
Prior art date
Application number
PCT/IB2003/003239
Other languages
English (en)
Inventor
Alexander Gorban
Original Assignee
Elthom Enterprises Limited
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 Elthom Enterprises Limited filed Critical Elthom Enterprises Limited
Priority to AU2003249513A priority Critical patent/AU2003249513A1/en
Priority to PCT/IB2003/003239 priority patent/WO2005005836A1/fr
Publication of WO2005005836A1 publication Critical patent/WO2005005836A1/fr

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
    • F04C2/1078—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 rotates and both members are allowed to orbit or wobble
    • 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
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F04C11/001—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of similar working principle

Definitions

  • the invention relates to a volume screw machine of rotary type (rotary screw machine).
  • PRIOR ART Volume screw machines of rotary type comprise conjugated screw elements, namely an enclosing (female) screw element and an enclosed (male) screw element.
  • the enclosing (female) screw element has an inner profiled surface (female screw surface), and the enclosed (male) screw element has an outer profiled surface (male screw surface).
  • the profiled surfaces (screw surfaces) are non-cylindrical and limit the elements radially. They are centred around respective axes which are parallel and which usually do not coincide, but are spaced apart by a length E (eccentricity).
  • a rotary screw machine of that kind is known from US 3,168,049.
  • a rotary screw machine of three-dimensional type of that kind is also known from US 5,439,359, wherein an enclosed element surrounded by a fixed enclosing element is in planetary motion relative to the enclosing element.
  • a first component of this planetary motion drives the axis of the male surface to make this axis describe a cylinder of revolution having a radius E around the axis of the female surface, which corresponds to an orbital revolution motion.
  • the axis of the enclosed (male) element rotates around the axis of the enclosing (female) element, wherein the latter axis is the principal axis of the machine.
  • a second component of this planetary motion drives the male element to make it rotate around the axis of its screw surface.
  • This second component can also be called swivelling motion.
  • the screw surfaces of the rotary screw machines have cycloidal (trochoidal) shapes as it is for example known from French patent FR-A-997957 and US 3,975,120.
  • Rotary screw machines of volume type of the kinds described above are known for transforming energy of a working substance (medium), gas or liquid, by expanding, displacing, and compressing the working medium into mechanical energy for engines or vice versa for compressors, pumps, etc. They are in particular used in downhole motors in petroleum, gas or geothermal drilling. The transformation of a motion as used in motors has been described by V.
  • the angular cycle is equal to a turn angle of a member with independent degree of freedom at which an overall period of variation of the cross section area (or overall opening and closing) of the working chamber, formed by the enclosing and enclosed elements, takes place, as well as an axial movement of the working chamber by one period P m in the machines with an inner screw surface or by one period P f in the machines with an outer screw surface, wherein P m , P f are pitches (periods) of a screw turn of the end sections around central axes of the respective elements.
  • a rotary screw machine comprises at least two sets of conjugated enclosing and enclosed elements, each set further comprising a planetarily moving element, wherein a first set of conjugated elements is placed coaxially in at least one cavity of the enclosed element of another set of conjugated elements.
  • the planetarily moving elements of both the first and the other set are driven into planetary motion by a common element which is both enclosing and enclosed.
  • the common element is inactive and the planetarily moving elements of both the first and the other set are driven into planetary motion by respective driving elements that respectively belong each to each set and that are moved simultaneously.
  • the common rotor is a two-sided rotor thereby comprised in both sets of conjugated elements. That rotor can therefore drive both a planetarily moving element enclosing it and a planetarily moving element enclosed by the rotor itself.
  • the outer set may comprise a stator as the most outwardly placed element (namely with an inner profiled surface), and the inner set may comprise a stator as the most inwardly placed element (with an outer profiled surface).
  • each element having the ordinal number i (when starting with the innermost element) of the machine has at least one profiled surface having a symmetry order nj.
  • a rotary screw machine comprises (at least) two sets of conjugated elements one placed in the interior of the other one.
  • (at least) two sets have a common element, for example an element having both an outer profiled surface and an inner profiled surface.
  • a rotary screw machine comprises two sets of conjugated elements which form a mechanism adapted to move a working medium in working chambers from one side of the machine to another side, wherein in alternating sets of conjugated elements, the working medium is at first moved from a first side of the machine to a second side on the one hand and secondly from a second side to the first side on the other hand.
  • a counter-rotative motion is provided by a following set of conjugated elements. For example, if two sets of conjugated elements are provided, a planetarily moving element rotates clock-wise, and the planetarily moving element in the second set of conjugated elements moves counter- clockwise. If the working medium is moved back and forth, not so many input and output stubs have to provided, the overall volume is made use of in an optimized manner, and the mechanism can be made very simple by using for example a common rotor which drives two different planetarily moving elements.
  • Fig.l shows a longitudinal section of a three-dimensional rotary screw machine according to the invention
  • Fig.2 shows a cross section of the rotary screw machine according to the invention along the line II-II of fig.l.
  • the figures show a rotary screw machine according to a preferred embodiment of the invention which comprises a body 7 which can be mechanically rigidly connected to a stationary body 8 of the machine.
  • the rotary screw machine comprises a first set of conjugated enclosing and enclosed elements 1, 2 and 3 as well as a second set of conjugated enclosing and enclosed elements 3, 4 and 5.
  • the first set of conjugated elements comprises a stator 1 having a profiled inner surface 201, a planetarily moving element (two- sided rotor-satellite) 2 with an outer profiled surface 102 and an inner profiled surface 202 and a rotor 3 with an outer profiled surface 103.
  • the second set of conjugated elements comprises the rotor 3 with the inner profiled surface 203, a planetarily moving element 4 with an outer surface 104 and an inner profiled surface 204 and finally a central inner stator 5 with an outer profiled surface 105.
  • the element 3 is a two-sided (central) rotor which is common to both sets of conjugated elements and which drives both the planetarily moving element (rotor-satellite) 2 of the first set and the planetarily moving element (rotor-satellite) 4 of the second set into planetary motion.
  • the profiled outer and/or inner surfaces of the elements 1, 2, 3, 4 and 5 all have a symmetry order r ⁇ lf wherein the symmetry order ni increases from the inside to the outside of the rotary screw machine, namely by 1.
  • the stators 1 and 5 are centred about a common axis about which the common rotor 3 rotates.
  • the planetarily moving element 2 is centred about an axis O 2/ and the planetarily moving element 4 is centred about an axis 0 4 , both axes being placed on a line transversing the central axis of the rotary screw machine.
  • the axes 0 4 and O 2 rotate about the central axis with the same angular velocity, i.e. the line O-rcentral axis-O 2 rotates with the angular velocity of the rotor. If the rotary screw machine is statically balanced, a statically balanced rotative motion is thereby obtained.
  • working chambers 300, 400, 500 and 600 are provided.
  • a working medium for example gas in a compressor
  • gas is supplied through an inlet stub tube 9 in body 7 on the open end surface on the left-hand side of fig.l.
  • gas is supplied through the working chambers 300 and 400 to the open end surface of the elements 3, 4 and 5 on the right-hand side of fig.l.
  • it is supplied through the working chambers 400 and 500 to the open end surface of the elements 3, 4 and 5 to the left-hand side of fig.l, and finally, it is removed via a channel 10 provided in the central stator 5 and through an inlet stub tube 11 in the body 7 in order to be output.
  • the rotary screw machine In compressor mode, the rotary screw machine according to the invention operates as follows: An output shaft 6 which is connected to the rotor 3 is rotated.
  • the rotation of the rotor 3 corresponds to an independent degree of freedom of the rotary motion which is provided in the two sets of conjugated elements, i.e. into the two planetary mechanisms, in a simultaneous manner, namely through the outer surface 103 of the rotor 3 into the group of elements 3, 2 and 1 and through the inner surface 203 of the rotor 3 into the group of elements 3, 4 and 5.
  • the planetarily moving elements (rotors-satellites) 2 and 4 execute a planetary motion, whereby working chambers begin to move a working medium along the axis Z.
  • the rotor 3 is started into the rotary motion by the rotors-satellites 2 and 4 and operates inversely.
  • the conjugated elements 1, 2, 3, 4 and 5 advance (with the motion of their conjugation contacts) the working medium into the chambers 300 and 400 through the stub tube 9 and thereafter into the chambers 500 and 600 and further through the channel 10 and the stub tube 11 to the outside.
  • a complete cycle of an axial movement of the working chambers 300 (with working medium) between the elements 1 and 2 occurs with the symmetry orders of the profiled surfaces of these elements as described above in 180° of the rotation of the output shaft 6 (i.e. twice during one rotation of the shaft 6).
  • a complete cycle of an axial movement of the working chambers 400 between the elements 2 and 3 occur under the same circumstances in 150° of rotation of the output shaft 6 (i.e. 2.4 times during one rotation of the shaft 6).
  • a complete cycle of an axial movement of the working chambers 500 between the elements 3 and 4 occur under the same circumstances in 360° of the rotation of the output shaft 6, i.e. once during one rotation of the shaft 6.
  • a complete cycle of an axial movement of the working chambers 600 between the elements 4 and 5 occur under the same circumstances in 90° of rotation of the output shaft 6 (i.e. 1 1/3 times during one rotation of the shaft 6).
  • the outer stator 1 is fixed.
  • the rotary screw machine works the other way round:
  • the common element 3 can be inactive and becomes a stator, whereas the stators 1 and 5 become respective driving elements that aresimultaneously movable.
  • the rotor-satellites 2 and 4 are driven into planetary motion by the driving elements 1 and 5.
  • An advantage of the invention lies in the decreasing of the angular extent of the thermodynamic cycles, in the decreasing of the resulting moment and the reactive forces on the machine supports by balancing the different screw elements out (centred about axis Z), and planetarily moving elements swivelling about axis O 2 and O 4 which are balanced out.
  • the specific characteristics of the machine are improved by realizing a counter-rotative motion, i.e. by the fact that the working medium in the working chambers 300 and 400 move from the first side to the second side of the machine, and wherein the working medium in the working chambers 500 and 600 move from the second side to the first side of the medium.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

Machine rotative à vis dans laquelle on optimise le déplacement du milieu de travail en imprimant un mouvement de contra-rotation à des éléments mobiles planétaires (2, 4) qui, comme les éléments mâles et femelles, sont emboîtés les uns dans les autres par groupes. Les éléments mobiles planétaires de deux groupes d'éléments conjugués (1, 2, 3 ; 4, 5, 6) sont notamment entraînés en déplacement planétaire par un rotor commun (3).
PCT/IB2003/003239 2003-07-14 2003-07-14 Machine volumetrique a vis du type rotatif WO2005005836A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2003249513A AU2003249513A1 (en) 2003-07-14 2003-07-14 Volume screw machine of rotary type
PCT/IB2003/003239 WO2005005836A1 (fr) 2003-07-14 2003-07-14 Machine volumetrique a vis du type rotatif

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2003/003239 WO2005005836A1 (fr) 2003-07-14 2003-07-14 Machine volumetrique a vis du type rotatif

Publications (1)

Publication Number Publication Date
WO2005005836A1 true WO2005005836A1 (fr) 2005-01-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2003/003239 WO2005005836A1 (fr) 2003-07-14 2003-07-14 Machine volumetrique a vis du type rotatif

Country Status (2)

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AU (1) AU2003249513A1 (fr)
WO (1) WO2005005836A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2505335A3 (fr) * 2011-03-31 2013-07-03 EBE Reineke & Eckenberg GbR Dispositif d'extrusion pour la production d'un profil en forme de bande ou tube en matière plastique ou de caoutchouc
JP5663124B1 (ja) * 2013-12-21 2015-02-04 一穂 松本 容積可変軸流ネジポンプ、流体機関並びに熱機関
US10480506B2 (en) 2014-02-18 2019-11-19 Vert Rotors Uk Limited Conical screw machine with rotating inner and outer elements that are longitudinally fixed
WO2020257033A1 (fr) * 2019-06-17 2020-12-24 Nov Process & Flow Technologies Us, Inc. Pompe à cavité progressive ou rotor de moteur
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

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR997957A (fr) * 1945-09-13 1952-01-14 Mécanisme à engrenages utilisable en particulier comme pompe compresseur ou moteur
RU2140018C1 (ru) * 1998-05-13 1999-10-20 Бродов Михаил Ефимович Способ преобразования движения в машине объемного расширения (вытеснения) и объемная машина горбаня-бродова
US6195990B1 (en) * 1999-01-13 2001-03-06 Valeo Electrical Systems, Inc. Hydraulic machine comprising dual gerotors

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR997957A (fr) * 1945-09-13 1952-01-14 Mécanisme à engrenages utilisable en particulier comme pompe compresseur ou moteur
RU2140018C1 (ru) * 1998-05-13 1999-10-20 Бродов Михаил Ефимович Способ преобразования движения в машине объемного расширения (вытеснения) и объемная машина горбаня-бродова
US6195990B1 (en) * 1999-01-13 2001-03-06 Valeo Electrical Systems, Inc. Hydraulic machine comprising dual gerotors

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2505335A3 (fr) * 2011-03-31 2013-07-03 EBE Reineke & Eckenberg GbR Dispositif d'extrusion pour la production d'un profil en forme de bande ou tube en matière plastique ou de caoutchouc
JP5663124B1 (ja) * 2013-12-21 2015-02-04 一穂 松本 容積可変軸流ネジポンプ、流体機関並びに熱機関
US10480506B2 (en) 2014-02-18 2019-11-19 Vert Rotors Uk Limited Conical screw machine with rotating inner and outer elements that are longitudinally fixed
US10962004B2 (en) 2014-02-18 2021-03-30 Vert Rotors Uk Limited Synchronized conical screw compressor or pump
WO2020257033A1 (fr) * 2019-06-17 2020-12-24 Nov Process & Flow Technologies Us, Inc. Pompe à cavité progressive ou rotor de moteur
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
AU2003249513A1 (en) 2005-01-28

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