WO2008024030A1 - Chambre de machine volumique rotative (et variantes) et étage de chambre de machine volumique rotative comprenant plusieurs chambres - Google Patents

Chambre de machine volumique rotative (et variantes) et étage de chambre de machine volumique rotative comprenant plusieurs chambres Download PDF

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Publication number
WO2008024030A1
WO2008024030A1 PCT/RU2007/000437 RU2007000437W WO2008024030A1 WO 2008024030 A1 WO2008024030 A1 WO 2008024030A1 RU 2007000437 W RU2007000437 W RU 2007000437W WO 2008024030 A1 WO2008024030 A1 WO 2008024030A1
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WIPO (PCT)
Prior art keywords
piston
rotor
axis
housing
working
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Application number
PCT/RU2007/000437
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English (en)
Russian (ru)
Inventor
Alexandr Vladimirovich Didin
Original Assignee
Yanovsky, Ilya Yakovlevich
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Application filed by Yanovsky, Ilya Yakovlevich filed Critical Yanovsky, Ilya Yakovlevich
Publication of WO2008024030A1 publication Critical patent/WO2008024030A1/fr

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Classifications

    • 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
    • F01C9/00—Oscillating-piston machines or engines
    • F01C9/005—Oscillating-piston machines or engines the piston oscillating in the space, e.g. around a fixed point
    • 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
    • F01C11/00—Combinations of two or more machines or engines, each being of rotary-piston or oscillating-piston type
    • F01C11/002—Combinations of two or more machines or engines, each being of rotary-piston or oscillating-piston type of similar working principle

Definitions

  • volumetric rotary machine chamber (options) and OPM stage consisting of several chambers.
  • the invention relates to the field of mechanical engineering, namely to rotary volumetric machines that can be used as pumps, compressors, hydraulic drives, etc., in particular in multi-stage submersible plants.
  • Known volumetric rotary machine (OPM) (SU 2004133654, SU 2004124353 (1)), which has a housing with an internal cavity of an annular shape. In this cavity, a spiral-shaped separator is installed in which the rotor is mounted.
  • the working surface of the rotor is a surface of revolution, in which there is at least one groove along the axis of rotation of the rotor, in each of which a piston is installed that can rotate partially protruding from one side of the rotor.
  • the piston has at least one through-cut along the perimeter, interacting with the separator, to synchronize the rotation of the piston with the rotation of the rotor.
  • the machine entry window and the machine exit window are spaced along the rotor axis and are separated from each other delimiter.
  • the piston of such a machine rotates in one direction relative to the rotor, and, together with the rotor, rotates relative to the housing.
  • the piston is securely installed in the slot of the rotor, protruding from it by a part of about half.
  • the spacing of the entry and exit windows along the axis of the rotor makes it easy to combine such machines into multi-stage ones, including with a common rotor for many stages. Such machines are used in submersible installations.
  • the common rotor allows you to remove the load from the radial, and often from the thrust bearings of the rotor due to balancing the loads of the individual stages when they are rotated relative to each other.
  • a significant advantage of the pump, created on the basis of such a machine, is the constant flow.
  • Known OPM (GB 1 458 459 and similar to it DE 32 06 286Al), in which the body has a cavity in the form of a segment of a sphere in which a separator is installed along the axis of symmetry of the cavity in the form of a circle sector overlapping the cavity; a rotor mounted rotatably in the housing, with a working surface in the form of two truncated cones, supported by vertices on the sphere from opposite sides, and on the surface of the sphere (within the working cavity), at an angle to the axis of symmetry of the rotor, there is an annular groove made with respect to to both cones.
  • the piston interacts with the separator through a sealing synchronizing element (SSE), made in the form of a cylinder, cut in half, with a groove starting at one end and going almost to the second end.
  • SSE sealing synchronizing element
  • the entrance window of the working fluid and the corresponding exit window is located on one side of the piston.
  • On the other side of the piston there are a couple more entry and exit windows.
  • the piston of such a machine oscillates relative to the housing, and the rotor of the machine rotates relative to the oscillating piston.
  • OPM also has disadvantages: the inconvenience of combining such a machine into a multi-stage machine, due to the fact that the entry and exit windows are on one side of the piston, and for passage from stage to stage, it is necessary to make a channel bypassing the spherical cavity of the housing along the axis of the rotor. Disadvantages are uneven delivery, poor piston fastening (only by the part sitting in the groove on the sphere), which also weakens the shaft due to the annular groove, unreliable fastening of the sealing force element in the piston groove (jamming with increasing load is possible).
  • Known OPM (DE 3146782 Al), which has a housing with a cavity in the form of a segment of a sphere, a rotor mounted for rotation, in which a through cut is made along the axis of the rotor.
  • a piston in the form of a disk mounted in the groove of the rotor with the possibility of rotation, a camera in the form of a spherical segment, partitioned by a separator in the direction of rotation of the rotor, exit and entrance windows, located before and after the separator, respectively.
  • the rotation of the piston is synchronized with the rotation of the rotor by means of a shaft motionlessly moving through the rotor and a gear system, one of which is fixed to the piston.
  • the piston of such a machine rotates in one direction relative to the rotor, and, together with the rotor, rotates relative to the housing.
  • the advantages of this machine are the spherical contact of the piston and the chamber, the reliability of the fastening of the piston protruding on both sides of the shaft, the presence of a strong shaft (the longitudinal groove weakens it a little), the ability to bring out (open) the entry and exit windows along the shaft to combine several steps on one shaft , independence of leaks from wear of the synchronization mechanism, the possibility of high revolutions.
  • the disadvantage is the unreliable synchronization mechanism, especially if you need to skip the gear shaft: through several steps.
  • the purpose of this application is to describe and protect the node OPM - camera OPM (KORM). It is called a camera because, due to its geometrical features, cameras are more often used in pairs, although one separate camera is operable as different types of OPMs.
  • OPM stage The widespread use of KORM in multi-stage submersible pumps is assumed, so the combination of two chambers in the application is called the OPM stage.
  • the piston installed in the rotor groove rotates, however, it turned out that at the same time, even at high OPM speeds, it does not experience large inertial loads.
  • the working cavity of the KORM is limited by geometrically simple surfaces: the segment of the housing sphere is limited by an inclined, generally curved (with slight deviations from the plane), and in many particular cases by a flat housing surface, rotor rotation surfaces, consisting, in most cases, from two surfaces: spherical and conical. Moreover, the conical surface, in most cases, interacts with a flat inclined surface of the rotor.
  • the inclined surface of the housing can be made flat due to the fact that the center of rotation of the piston is located in the chamber above this surface.
  • the inclined surface of the housing and the face of the SSE interacting with it can be made flat due to the fact that the SSE rotates with respect to the piston around a geometric axis passing through the center of rotation of the piston.
  • the objective of the invention is also achieved due to the fact that when performing an inclined surface of the housing displaced beyond the center of the working chamber of the KORM (center of rotation of the piston), it becomes possible to respond to the inclined surface of the housing on the piston of the surface.
  • the objective of the invention is also achieved due to the fact that on the piston the surfaces reciprocal to the inclined surface of the housing are executed, interacting with it during the operation of the KORM and which are the wiping surfaces of the piston.
  • the objective of the invention is also achieved due to the fact that when performing an inclined surface of the housing displaced outside the center of the working chamber of the KORM (center of rotation of the piston) surface, the response of the inclined surface of the housing is part of the cylinder.
  • the objective of the invention is also achieved due to the fact that the piston has connectors for the installation of SSEs, which improve the contact of the piston with the inclined surface of the housing and reduce the internal flow of the working fluid through the contact point.
  • the objective of the invention is also achieved due to the fact that the piston is executed with a mass distribution as close as possible to the axis passing through the center of the piston along its plane.
  • the objective of the invention is also achieved due to the fact that the piston is made with a mass distribution that maximally approximates the piston's inertia ellipsoid to the axis passing through the center of the piston perpendicular to its plane and its plane of symmetry.
  • Fig. 1 shows an isometric view of a chamber of a volumetric rotary machine (KORM) with one piston with a removed part of the housing. Further, in all figures, the rotor rotates clockwise when viewed from above.
  • KRM volumetric rotary machine
  • Fig.2 presents in isometric three parts of the housing of the KORM in Fig.l.
  • Fig. 3 the KORM rotor of Fig. 1 is shown in isometry.
  • a piston and its two sealing synchronizing elements (SSEs) of the KORM in Fig. 1 are presented in an exploded perspective.
  • Figure 5 presents in the isometric KORM similar to the KORM in Fig. 1 but with two pistons with the removed part of the body.
  • KORM is shown in isometry, similar to KORM in Fig. 2, but with a smaller exit window, with the part of the housing removed and the rotor removed (to show the chambers and the intersection of the pistons).
  • Figure 7 presents in isometric another variant of the intersection of the pistons.
  • Figure 9 presents in isometric disassembled form a piston with SSE in the form of rollers.
  • Figure 10 presents in isometric piston with relief.
  • Figure 11 presents in isometry with the removed part of the housing KORM with the supply of the working fluid along the shaft.
  • the shot near part of the case unfolds half a turn and is placed on the figure on the left, and if the far part of the case is removed, then on the figure it moves to the right.
  • Fig presents in ⁇ metry step OPM, consisting of two feed on one shaft. Both feeds are connected in their pressure part hydraulically, in parallel through many small passages in the separator, while the cameras operate in antiphase.
  • Fig presents in isometric partially disassembled state of the assembly of two pistons with SSE having additional axes, coaxial axis of a flat inclined surface of the housing.
  • an OPM stage is represented in isometry, consisting of two KORM on one shaft, hydraulically connected, working in parallel in parallel, with the passage of the working fluid bypassing the working cavity through the channels between the pipe and the body, with the half of the body removed, with a common piston.
  • FIG. 19 is a perspective view of the common piston of the OPM stage of FIG. eighteen.
  • Fig presents isometric exploded view of the node, consisting of a rotor, a common piston and SSE stage OPM of Fig, 18.
  • the chamber of a volumetric rotary machine (Fig. L-) consists of a housing 1, a rotor 2 with an output shaft 3 and a piston 4, which includes sealing synchronizing element (SSE) 5.
  • the housing 1 has an internal cavity 6 from which a cylindrical hole 9 emerges for the shaft 3 of the rotor 2.
  • the axis of the hole 9 is the geometrical axis of the feed and the axis of rotation of the rotor 2.
  • the cavity 6 is bounded by a spherical surface 7 coaxial the hole 9 and, in the General case, the curved surface 8 made at an angle (on average) to the axis 15. In this embodiment, the surface 8 is made flat.
  • the rotor 2 is made in the form of a set of coaxial elements (Fig. 1, 3) : a central sphere 12, supported by a smaller base of a truncated cone 13, bounded by a segment of a sphere 14, concentric with a central sphere 12 and having a larger radius approximately equal to the radius of the spherical surface 7 of the housing 1 and adjacent to the listed parts from opposite sides there are cylindrical ends of the output shaft 3.
  • a through groove 16 is made for accommodating the piston 4.
  • recess 17 under SSE 5 made in the form of a chamfer.
  • the rotor 2 is installed in the housing 1 with the possibility of rotation around its geometric axis 15. In this case, the centers of the spherical surfaces 7, 12 and 14 approximately (accurate to play, tolerances, wear) coincide. In this design, the conical surface 13 of the rotor 2 interacts with the flat surface 8 of the housing 1.
  • the piston 4 (Fig. 1, 4) is made in the form of a disk with a spherical lateral surface 19, a smaller part of which is cut off by a chord.
  • Surface Radius 19 approximately equal to the radius of the surface 7 for the possibility of rotation of the piston in the housing when creating a seal between the surfaces 7 and 19.
  • the end surfaces 20 of the piston 4, in this design, are flat and parallel to each other.
  • the piston 4 is installed in the through groove 16 of the rotor 2 with the possibility of making a rotator oscillations in the plane of the slot 16 relative to the geometric axis 23 extending approximately (up clearances, tolerances, wear) through the center of the central sphere 12 of the rotor 2 (relative to the center of the surface 19).
  • the thickness of the piston 4 is approximately equal to the width of the groove 16 for sealing by the piston 4 of the groove 16.
  • A, 4 has one flat face 24 for contact with the flat surface 8 of the housing 1, one concave spherical face 25 for contact with the central sphere 12 of the rotor 2, one convex spherical face 26 for contact with the spherical surface 7 of the housing 1 and on another face there is a hinge connector 27 responsive to the hinge connector 21 of the piston 4.
  • the hinge connector 21 on the piston 4 consists of two coaxial cylindrical protrusions 28, between which there is a coaxial they have a cylindrical recess 29.
  • the hinge connector 27 on the SSE 5 consists of two coaxial cylindrical recesses 30, between which the cylindrical protrusion 31 is coaxially located.
  • the protrusion 31 holds the SSE 5 mainly from moving a perpendicular flat face 24 and fastens the two halves of the SSE 5, and the recesses hold the SSE 5, mainly, from moving along a flat face 24 and from turning in the plane of this face.
  • a rather important feature is that both hinge connectors 21 are on the same axis 32 and the axis 32 of the hinge connectors 21 and 27 crosses (with precision to play, tolerances, wear) the axis
  • the 24 SSE 5 may be in constant contact with the flat surface 8 of the housing 1.
  • the axis 32 is in the inner cavity 6 above the flat surface 8 and approximately parallel to it.
  • the windows of the inlet 33 and the outlet 34 of the working fluid (Fig. 1, 2) are located on a flat surface 8 and are adjacent on different sides to the point of contact of this surface with the cone 13 of the rotor 2-OPM has a supply pipe 35 and a branch pipe 36 of the working fluid.
  • the working cavity 37 KORM is limited by the spherical surface 7 of the housing 1, the conical surface 13 and the central sphere of the rotor 2.
  • the working surface of the rotor 2 i.e. the surface bounding the working cavity 37 and interacting with the housing 1 for sealing the chamber consists of surfaces 12 and 13.
  • the working chamber 37 is sealed by a surface
  • the pistons 4 create a differential pressure only passing through the working portion 38 located between the inlet window 33 and the outlet window 34 in a place where the transverse (passing along the axis
  • the supply of such an OPM is all the more constant, the shorter the working section 38 i.e. the angular dimensions of the windows 33 and 34 are larger. If the working section 38 has a greater angular extent (smaller windows 33 and 34), the OPM feed becomes less uniform.
  • pistons 4 can be installed in it, for example two (FIG. 5). To do this, in the rotor 2 made two through grooves 16.
  • a preliminary compression chamber 41 of the working fluid is formed between the two pistons 4 on the working section 38 of the working chamber 37. Only after reducing the volume of the chamber 41 by a predetermined amount (by the position of the input window 34), the pre-compression chamber 41 is connected to the exit window 34. That is, OPM can be used as a compressor having a pre-compression chamber.
  • FIG. 6 shows the overlap of the pistons 4 inside the rotor 2, in which they can rotate at a rather large angle.
  • a cutout 42 is made in the form of a sector extending onto a spherical surface 19, and toward the center of the piston extends beyond the radius of the central sphere 12 of the rotor 2 and a spherical (cylindrical) cutout 43 in the center, so that two the halves of the piston 4 were joined by an arc 44.
  • the same cutout 42 is made in the form of a sector facing the spherical surface 19, which, with its lower part, extends into a wider corner cutout 45 in the form of a sector of the disk located along the radius of the disk at the level of the arc 44 of the first piston 4.
  • the simpler but more robust piston 4 shown in FIG. 7, allows them to swing at a smaller angle.
  • a cutout 43 is made in the center, and on the second, a cutout in the form of sector 42. Moreover, they are easily inserted in turn into the through grooves 16 of the rotor 2 during assembly.
  • a hole 46 can be made in the connector 21 for additional fixing of the SSE 5. The same hole (not shown) is also made on the SSE 5. Then the SSE 5 can additionally be mounted with the possibility of rotation by an axis (pin) (not shown) passed through the hole 46. If the hole is made through the entire piston, then two SSEs 5 may appear on a common physical axis.
  • Pistons 4 can be used both with SSE 5 of various types and without SSE 5.
  • FIG. Figure 8 shows an example of SSE 5 swinging on axis 47 protruding from piston 4.
  • Axis 47 may be part of piston 4 (stronger connection, but more complicated manufacturing), and may be inserted into the hole in piston 4 either motionless or rotationally. In each case, this is determined by materials, loads, required strength.
  • SSE 5 is made in the form of a tube 48 with a flat plate. It has the same functional surfaces 24, 25, 26 as on the previous SSE 5.
  • the tube 48 is worn on the axis 47 or stationary (then axis 47 rotates in the piston 4), or with the possibility of rotation.
  • the hole 49 When the hole 49 is made in the center of the piston 4, it can be fixed in the rotor 2 using an axis (pin) 50, which can be pressed into the hole 49 or be able to rotate in it. At the same time, a hole for the axis 50 is also made on the central sphere 12 of the rotor 2.
  • FIG. 9 shows an example of a SSE 5 made in the form of a roller 51 mounted on an axis 47 protruding from a piston 4.
  • a roller 51 for example, a carbide, plastic or rubber sleeve can be used.
  • the roller 51 can be mounted on the axis 47 with the possibility of rotation or motionless.
  • Relief of the piston 4 can be performed in the form of a sample 52 of the material (Fig. 10) at its front end 20 in the direction of rotation of the rotor.
  • the sample 52 is shifted to the right.
  • the same sample 52 (it is not visible) was made on the face 20 facing us (in the figure on the left) symmetrically with respect to the axis of symmetry of the piston 4.
  • the samples can be filled with lighter material.
  • the samples 52 may be located on the rear (acting as a sliding bearing) end 20.
  • the working fluid needs to be driven through a rotating shaft (for example, in cooling systems). Then it may be convenient to arrange one or both windows of the entrance 33 and exit 34 of the working fluid on the rotor 2 (Fig. 11).
  • the rotor 2 of such a KORM is similar to the rotor 2 of Fig. 1, except that the diameter of the upper output shaft 3 is open and in one of the recesses 17 under the SSE 5 there is an input window 33 to the right of the through groove 16 and an output window 34 to the left of the groove 16.
  • Windows 33 and 34 are connected with the channels inside the rotor 2 running along its axis 15 on different sides of the groove 16 of the supply 53 and the outlet 54 of the working fluid, respectively.
  • the body of such a feed is made of three parts. Two parts of the casing are the same and represent a longitudinal half from the cylinder with a through ishindlorny hole 9 coaxial lateral W 2
  • a spherical cavity 6 is made inside the cylinder with a center on the axis of the hole 9.
  • the third part of the body is a ball whose diameter is equal to the diameter of the spherical cavity 6 with a through cylindrical hole 11.
  • the upper (slightly larger) part of the ball is cut off by a plane passing at an angle to the axis of the cylindrical hole 11
  • the slice forms a flat surface 8.
  • a spherical cavity 10 is made, the diameter of which is equal to the diameter of the central sphere 12 of the rotor 2.
  • the rotor is inserted into the third part of the housing due to the fact that the cylindrical bore 11 has a larger diameter than the diameter of the lower part of the output shaft 3. Tightness is ensured by the contact of the sphere 12 along the spherical cavity 10.
  • the gap between the output shaft and the bore 11 is used to install a bearing (not shown).
  • the recess 18 is made a groove 56, which serves to prevent overwriting (tightening) solid particles of mechanical impurities in an acute angle between surfaces 8 and 13.
  • a feature of this KORM variant is the presence of through holes 57 (Fig. 12) on one of the piston 4 parts protruding from the rotor 4.
  • the second part of the piston 4 is used only to synchronize it with the surface 8 via SSE 5 or directly.
  • this SSE 5 should fit tightly into the recess 18, blocking the windows 33 and / or 34 at the time of passage.
  • a sealing element 58 which can be performed, for example, from rubber, plastic, hard alloy, depending on the working environment.
  • Such an element 58 can improve the friction conditions and select gaps on several surfaces at once: piston 4 — surface 7 of housing 1, piston — SSE 5, SSE 5 — surface 8 of housing 1.
  • FIG. 13 shows the OPM stage with parallel connection of the KORM working in antiphase with each other.
  • the top of the KORM 59 to create pressure uses the entire working section 38 of the working chamber 37, on which its cross-sectional area increases - the descending section 60 (named in the direction of the piston 4), and captures part of the working chamber 37 with a decreasing section - the beginning of the ascending section 61.
  • the lower KORM 62 for creating pressure uses a part of its working chamber 37 with a close to maximum, but still increasing cross-section (end of ascending section 61) and the entire section of the working chamber 37, on which its cross-sectional area I decreased (downward section 60).
  • the windows of the entrance 33 and exit 34 are located or their dimensions are simply increased to reduce the tightness.
  • the surface 8 of the housing of each KORM is parallel to each other, and the passage 63 for the working fluid from one KORM to another is made in the form of several small angular lengths of the passages 64 located on the descending section 60.
  • the piston 4 passes to the surface 8 of the housing 8 of the passage 64, the outlet is blocked by a piston 4 or SSE 5.
  • the windows of the inlet 33 and the outlet 34 of the working fluid are located on the upstream part 46 of the KORM on the spherical surface 7 of the housing 1.
  • the center nye 12 different spheres of FOOD may partially go into the next fed. So that this does not interfere with the movement of the SSE 5, it is narrowed 65 on the side facing the rotor 2 (instead of the concave spherical face 25).
  • the flow of this stage is constant, the pressure drop is provided throughout the cycle. If there is sufficient tightness of the stage (precise manufacturing or good sealing or small pressure drop), in a multi-stage machine, the efficiency of the OPM stage can be increased and its wear reduced by excluding part of the descending section 60, where the piston 4 relative to the rotor 2 is at its maximum.
  • the third part of the body containing the surfaces 8 of both KORM 59 and 62 can be called a separator 66.
  • the cylindrical part of the housing is sometimes conveniently divided into halves by a plane along its axis perpendicular to the division shown. With a separate rotor of each stage, it is more convenient to divide by a transverse plane.
  • the two central spheres 12 can be formed as a cylindrical section (not shown) or, in general, instead of two spheres 12, make one cylinder. True, this will slightly increase internal overflows.
  • KORM are connected in parallel, using only working sections 38 to create a differential pressure, where the cross sections of the working chambers 37 are close to their maximum value (Fig. 15).
  • the working fluid enters the rarefaction chamber 39 of the upper KORM 59, passing first through the rarefaction chamber 39 of the lower KORM 62. And in the passage 69, the working fluid leaves the compression chamber 40 of the lower KORM 62, first passing through the compression chamber 40 of the upper KORM 59
  • sections of the common rotor 2 in different KORM 59 and 62 can be deployed about the axis 15 for phase separation (Fig. 15). For example, when the piston 4 of the upper KORM 59 passes the maximum section at its working section 38, the piston 4 of the lower KORM 62 passes a smaller section of the working chamber 37 at the working section 38.
  • the exit of the passages 68 and 69 between the KORM 59 and 62 on the surface 8 can be made in the form of a set of holes as in Fig. 12.
  • the housing 1 Fig. 15
  • the housing is usually placed in the pipe.
  • the passages 68 and 69 of the working fluid from the lower KORM 62 to the upper KORM 59 through the separator 66 are needed so as not to occupy a place along the diameter of the step, i.e. if there is a task, through the hole (well) pump a maximum amount of fluid at a certain diameter, or vice versa - for a specific fluid supply, drill a minimum diameter well. If there is no such or similar task, then the passages 68 and 69 can be bypassed the separator 66, through the windows of the entrance 33 and exit 34 located on the spherical surface 7 of the housing 1, and select the KORM 62 and 59 turn, such as in Fig.
  • Axis 72 is attached perpendicular to the middle of the common axis 74 of two SSE 5.
  • the common axis 75 of two other SSE 5 has a middle in the form of an arc 76 to bypass axis 74.
  • the axis 73 is made in the form of a tube to the arc 76.
  • the axes 72 and 73 exit the rotor 2 through the hole in place of one (lower) of the output shafts, perpendicular to surface 8, into the hole in the housing, which they have the ability to rotate around their geometric axis.
  • the axes 72 and 73 hold the faces 24 of the SSE 5 parallel to the surface 8, and if they are fixed in the housing from axial movement, they can provide a small guaranteed clearance between the faces 24 and the surface 8 - between the parts having maximum relative speeds. This can be important, for example, when using FOOD as a dry compressor.
  • KORM work in parallel.
  • the FEED of each step is in one phase, and both the FEED of the other step are in the opposite phase. This makes it possible to unload the rotor sections of each stage from radial and axial loads.
  • pistons 4 of different KORM can be combined into one piston 4 (Fig. 15). This reduces the load on the common piston 4, but due to the fact that the axes 32 of the SSE 5 of both KORM cannot simultaneously pass through the center of the piston 4, being parallel to the surface 8, measures must be taken to maintain the contact seal of the piston 4 (SSE 5) - surface 8. I will give some of them. Passing through the center of the piston 4 axles 32 of only one of the two KORM (asymmetric piston 4) and laying the main load on them to synchronize the piston 4.
  • Design SSE 5, in which SSE 5 selects the gap between the piston 4 and surface 8 (Fig. 16).
  • the introduction of a small deviation from the flatness of the surface 8 on one of the surfaces 8 (reduces manufacturability, the resource of the friction pair).
  • Pressing for example, a pressure drop
  • Pressing to the surface 8 of only the side of the piston 4 creating a pressure drop (a backlash appears in the system).
  • the OPM stage (Figs. 18 - 20) consists of two KORM 59 and 62 with a common rotor 2.
  • the housing of the 1 stage is made in the form of a cylinder consisting of two longitudinal (connector plane along the axis 15) halves.
  • One spherical cavity is made inside the housing, in which an groove 67 is made at an angle to the axis 15 for mounting a separator 66, which divides this spherical cavity into two cavities 6.
  • the upper cavity 6 contains the center of the spherical cavity.
  • the spacer is like a flat washer.
  • the upper surface is the surface 8 of the upper KORM 59, and the lower surface is the surface 8 of the lower KORM 62.
  • the inner hole of the separator 66 is spherical and is a recess 10 of both KORM 59 and 62 at the same time.
  • the lower side of the separator 66 is also flat in this design and is the surface 8 lower FOOD 62.
  • the separator 66 is made up of two "c" - shaped parts. The connector between them is only necessary in order to the separator was worn on the rotor, and can pass anywhere, for example, perpendicular to the connector of the housing 1.
  • Two cylindrical openings 9 for the output shaft 3 come out of the cavities 6 coaxially to the axis 15.
  • the rotor 2 is made in the form of a set of coaxial elements (fi 20 ): the central sphere 12, resting on it with a smaller base of two truncated cones 13, each of which is limited by its segment of the sphere 14 to the concentric central sphere 12 and having a larger radius approximately equal to the radius of the spherical surface 7 of the housing 1, and adjacent from opposite sides to the listed parts, the cylindrical ends of the output shaft 3.
  • a through groove 16 is made to accommodate the piston 4.
  • the rotor 2 is installed in the housing 1 with the possibility of rotation around its geometric axis 15. In this case, the centers of the spherical surfaces 7, 12 and 14 approximately (accurate to play, tolerances, wear) coincide. In this embodiment, the conical surfaces 13 of the rotor 2 interact with the flat surfaces 8 of the housing 1. At the point of contact, it is allowed (more often useful) to have a small recess 18 (not shown). A groove (not shown) is preferable in front of the point of contact for abrasive deflection.
  • the piston 4 (Fig.19, 20) is made in the form of a disk with a spherical lateral surface 19.
  • the radius of the surface 19 is approximately equal to the radius of the surface 7 for the possibility of rotation of the piston in the housing when creating a seal between the surfaces 7 and 19.
  • the end surfaces 20 of the piston 4, in given execution, are flat and parallel to each other.
  • In the spherical lateral surface 19 symmetrical with respect to the plane of symmetry, perpendicular to the end surface 20, opposite parts of the piston 4, there are grooves 81 under the separator 66, in which there are elements interacting with surface 8.
  • the upper KORM 59 it is a sector of the cylindrical surface coaxial to the axis 32 and a cylindrical hole 83 into the piston 4.
  • the bottom of the slot is made in the form of a spherical platform 22, concentric surface 19, for contact with a spherical recess 10 case 1.
  • a sealing element 79 installed in the groove 80 with the ability to extend from it and select the gap between the lower lateral sides of the slot 81 of the piston 4 and the surface 8 of the lower feed.
  • the piston 4 is installed in the through groove 16 of the rotor 2 with the possibility of performing rotational vibrations in the plane of the groove 16 relative to the geometric axis 23 passing approximately (with accuracy to the backlash, tolerances, wear) through the center of the central sphere 12 of the rotor 2 (relative to the center of the surface 19).
  • the thickness of the piston 4 is approximately equal to the width of the groove 16 for sealing by the piston 4 of the groove 16.
  • the SSE 5 (Fig. 19, 20) has its own axis 82, which enters the hole 83 in the piston 4, one flat face 24 for contact with the flat surface 8 of the housing 1, one concave spherical face 25 for contact with the Central sphere 12 of the rotor 2, one convex spherical face 26 for contact with the spherical surface 7 of the housing 1 and on another face there is a sector of the cylindrical surface coaxial to the axis 82.
  • the axis 82 enters the bore of the piston 4 and keeps SSE 5 from skew, left a rotational degree of freedom.
  • both axes 82 of the SSE of the upper KORM 59 are located on the same axis 32 and the axis 32 intersects (to the extent of backlash, tolerances, wear) the axis 23 of the oscillatory rotations of the piston 4. It is thanks to this fact that the face 24 SSE 5 can be in constant contact with the flat surface 8 of the upper KORM 59, taking on the load to synchronize the oscillations of the piston 4. In this case, the axis 32 is in the inner cavity 6 above the flat surface 8 and approximately parallel to it. Windows entry 33 and exit 34 of the working fluid (Fig.
  • the windows of the entrance 33 and exit 34 lead into the channels 53 and 54, respectively, as in the step of FIG. . 16.
  • the lower surface of the separator can be made curved, tracking the lower side of the slot 81. Then you can do without the sealing element 79.
  • in the lower chamber can be used any of the previously described type of SSE 5. But its face 24 is better to make slightly curved, with the presence of convex sections.
  • the combination of the pistons of the two KORM described here can be used in all the types of connection of the two KORM described above, except, perhaps, for the stage in Fig. 15 (the separator is too thin to allow flows through it).
  • FIG. 1 The feed of FIG. 1 operates as follows.
  • the piston 4 is located on the working section 38 in the state of its maximum deviation (at the rocking extreme point) in the region of the maximum cross section of the working chamber 37, blocking its passage.
  • the camera 37 is not closed in the ring, because behind the rotor 2 it is blocked by the contact point of the conical surface 13 of the rotor 2 with the flat surface 8 of the housing 1 — the recess 17.
  • the piston 4 divides the chamber 37 into two cavities — the rarefaction chamber 39 (to the right of the piston 4) and the compression chamber 40 (to the left of the piston four).
  • SSE 5 improves the contact of the piston 4 with the flat surface 8.
  • the size of the rarefaction chamber 39 increases and the working fluid enters through the inlet window 33.
  • the size of the compression chamber 40 decreases, and the working the body leaves it through the exit window 34.
  • the cross section of the working chamber 37 when moving the part of the piston 4 closest to us, starts to decrease. In this case, the piston 4 is forced to begin to turn so that the proximal part of the piston 4 is shifted upwards and away from us.
  • the back of the SSE 5 runs into the exit window 34, the overlapping of the working cavity 37 by the piston 4 is stopped.
  • the KORM does not create a pressure drop (in fact, a small drop remains, as with fan-type machines).
  • the movement of the working fluid in the highway at this time should be supported either by the inertia of its movement, or by other sequentially established KORM.
  • this section of the cycle can be eliminated, but then the KORM feed will become forcibly pulsating and the feed will be lost, the efficiency will decrease due to the load on the piston 4 when it moves relative to the rotor 2.
  • the front the edge of the UGE 5 of the second end of the piston 4 slides off the inlet window 33 and runs into the working platform 38. Now this end of the piston 4 overlaps the cross section of the working chamber 37, pushing the working medium through it from the inlet window 33 to the exit window 34.
  • KORM according to Fig.5 works similarly to KORM according to Fig.l.
  • the difference is that it has more 4 (two) pistons and the pressure drop is maintained throughout the cycle.
  • pistons 4 are constantly replaced.
  • the cutouts 42 and 45 on the pistons 4 shift the center of mass of each piston 4 to its axis 32, thereby significantly reducing the piston's pressing against the surfaces of the housing 7 and 8 by inertia.
  • KORM according to Fig. B works similarly to KORM according to Fig. 5.
  • the difference is that it has a smaller exit window, and for some time on the working platform 38 there are two pistons 4.
  • the volume of the working fluid gas or gas-liquid mixture
  • a pre-compression chamber 41 is formed, which begins to compress as the pistons 4 move to the left.
  • the cut off volume is connected to the compression chamber 40. It is desirable that at this moment the pressure of the working fluid in the chamber 41 is approximately equal to the pressure in the chamber 40.
  • the working fluid continuously enters the suction chamber all the time from the input window 33, From the displacement chamber, the working fluid continuously exits through the exit window 34. Between them, the preliminary compression chambers periodically appear and disappear.
  • the gap (volume) between the recess 17 of the rotor 2 and the SSE 5 depends on whether a part of the compressed working fluid will be lost when the SSE 5 leaves the compression chamber 40. It is better to minimize the gap for the compressor. Consumption and supply of the KORM - working fluid compressor is almost constant and continuous.
  • the other end of the piston 4 does not overlap the working chamber 37, because at least one through passage 57 is made on it.
  • This end of the piston 4 is used only for centering the piston on the surface 19, to provide oscillations due to the SSE 5 of this end of the piston 4 and as a counterweight to the working end of the piston 4. Supply of one such feed pulsating from zero to maximum.
  • a stage of two such KORM installed on the same shaft for operation in antiphase, hydraulically connected in parallel by common channels 53 and 54 the feed becomes almost constant.
  • the step of FIG. 13 works as follows. When the parts of the pistons 4 of both KORM 59 and 62 protruding into the working chamber 37 go along the descending section 60 of the separator 66 or further along the section of the chamber 37 adjacent to its maximum section (i.e., along the pressure section), they break the chamber 37 into the suction chamber 39 and compression chamber 40 (proxies 63, due to their small angular extent, are blocked by piston 4 or SSE 5 and do not affect the chamber formation process). At the pressure section, liquid from the lower KORM 62 enters the upper KORM 39 through the passages 63. If two pairs of pistons are located on these sections, then another chamber of constant volume is formed between them.
  • the working fluid enters the suction chamber 39 through the window 33 from the supply channel of the working fluid 53, and exits the compression chamber 40 through the window 34 into the exhaust channel of the working fluid 54.
  • the pressure section there are 2 or 3 pairs of protruding parts of the pistons 4, so that the step creation process is continuous.
  • the supply of such a stage is almost constant.
  • the pistons pass the bypass section - the ascending section 61 without its very beginning, they create a small pressure drop, working only as fan blades.
  • the operation of the stage of FIG. L 5 can be considered as the operation of two parallel SORMs of FIG. 5.
  • the piston 4 moves along the working section 38 of the upper KORM 59, it breaks its working cavity 37 into two parts — the increasing rarefaction chamber 39, where from the supply channel 53 of the working fluid, first through the input window 33 of the lower KORM 62, then along the high pressure passage 68, the working fluid enters, and a decreasing compression chamber 40, from where the working fluid enters the exit window 34 and then into the exhaust channel 54 of the working fluid.
  • the phases of the feed are divorced to compensate for the uneven supply of each of them.
  • the piston divides the working cavity 37 of one of the KORM 59/62 in the maximum section at its working section 38, the working cavity 37 of the other KORM 59/62 shares its piston 4 at the minimum section of its working section 38.
  • the operation of the stage in Fig.16 can be considered as the work of two parallel SORM in Fig.5. The difference is only in the location of the windows - on the surfaces 7.
  • the piston 4 moves along the working section 38 of the lower KORM 62, it breaks its working cavity 37 into two parts - an expanding rarefaction chamber 39, where the working medium passes from the supply channel 53 of the working fluid through the input window 33 the body, and a decreasing compression chamber 40, from where the working fluid leaves the window exit 34 and further into the channel 54 of the working fluid.
  • KORM phases 59 and 62 coincide to balance the common rotor 2.
  • stage of FIG. 18 is similar to the operation of the stage of FIG. 16

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydraulic Motors (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary Pumps (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

L'invention concerne une chambre pour machine volumique rotative et un étage de machine volumique constitué de plusieurs chambres. Un piston (4) de la machine rotative, monté dans un logement (16) du rotor (2), effectue des oscillations rotatives sans subir d'importantes charges même à des tours élevée de la machine car les masses réparties à proximité du plan par lequel passe son axe de rotation lors de la position médiane du rotor (2) effectuent ces oscillations en grande partie grâce à l'action des forces centrifuges créés lors de la rotation du piston (4) avec le rotor (2). Le montage sur le piston (4), près dudit plan, d'éléments d'étanchéité et de synchronisation supplémentaires n'augmenter pratiquement pas la charge inertielle qu'il subit, ce qui permet d'améliorer les conditions d'interaction (contact et glissement) avec la surface plane (8) du corps (1). Cela permet de construire une machine volumique rotative possédant des caractéristiques spécifiques élevées, une fiabilité et une durée de vue supérieures et avec des surfaces de travail simples du point de vue géométrique. Il est possible d'utiliser la machine volumique rotative dans des pompes immergées à étages multiples.
PCT/RU2007/000437 2006-08-10 2007-08-09 Chambre de machine volumique rotative (et variantes) et étage de chambre de machine volumique rotative comprenant plusieurs chambres WO2008024030A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2006129001 2006-08-10
RU2006129001/06A RU2383745C2 (ru) 2006-08-10 2006-08-10 Камера объемной роторной машины (варианты) и ступень объемной роторной машины

Publications (1)

Publication Number Publication Date
WO2008024030A1 true WO2008024030A1 (fr) 2008-02-28

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PCT/RU2007/000437 WO2008024030A1 (fr) 2006-08-10 2007-08-09 Chambre de machine volumique rotative (et variantes) et étage de chambre de machine volumique rotative comprenant plusieurs chambres

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EA (1) EA012828B1 (fr)
RU (1) RU2383745C2 (fr)
WO (1) WO2008024030A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2469212C1 (ru) * 2011-09-07 2012-12-10 Закрытое Акционерное Общество "Новомет-Пермь" Роторная объемная машина
RU2612230C1 (ru) * 2016-01-25 2017-03-03 Юрий Валентинович Нестеров Объемная роторно-пластинчатая машина (два варианта)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR511943A (fr) * 1918-02-28 1921-01-07 Henri Pruvost Moteur rotatif sphérique
DE878755C (de) * 1950-05-27 1953-06-05 Brandt Soc Nouv Ets Kugelkolbenpumpe
US2708413A (en) * 1949-09-26 1955-05-17 Loewen Edward Rotary piston, power transferer
US2832198A (en) * 1954-03-15 1958-04-29 Pichon Gabriel Joseph Zephirin Hydraulic rotary pump and motor transmission
US3121399A (en) * 1960-10-31 1964-02-18 Hartley E Dale Fluid handling device
RU2062885C1 (ru) * 1993-11-09 1996-06-27 Анатолий Иванович Лосев Роторная машина

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR511943A (fr) * 1918-02-28 1921-01-07 Henri Pruvost Moteur rotatif sphérique
US2708413A (en) * 1949-09-26 1955-05-17 Loewen Edward Rotary piston, power transferer
DE878755C (de) * 1950-05-27 1953-06-05 Brandt Soc Nouv Ets Kugelkolbenpumpe
US2832198A (en) * 1954-03-15 1958-04-29 Pichon Gabriel Joseph Zephirin Hydraulic rotary pump and motor transmission
US3121399A (en) * 1960-10-31 1964-02-18 Hartley E Dale Fluid handling device
RU2062885C1 (ru) * 1993-11-09 1996-06-27 Анатолий Иванович Лосев Роторная машина

Also Published As

Publication number Publication date
EA200702000A3 (ru) 2008-06-30
RU2383745C2 (ru) 2010-03-10
EA200702000A2 (ru) 2008-02-28
EA012828B1 (ru) 2009-12-30
RU2006129001A (ru) 2008-02-20

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