WO2004022976A1 - Machine tournant a capsulisme - Google Patents
Machine tournant a capsulisme Download PDFInfo
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- WO2004022976A1 WO2004022976A1 PCT/FR2003/002642 FR0302642W WO2004022976A1 WO 2004022976 A1 WO2004022976 A1 WO 2004022976A1 FR 0302642 W FR0302642 W FR 0302642W WO 2004022976 A1 WO2004022976 A1 WO 2004022976A1
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- cos
- profile
- sin
- machine according
- lobed
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- 239000002775 capsule Substances 0.000 claims abstract description 102
- 230000009471 action Effects 0.000 claims abstract description 26
- 238000005096 rolling process Methods 0.000 claims abstract description 22
- 238000009826 distribution Methods 0.000 claims abstract description 12
- 230000000295 complement effect Effects 0.000 claims description 25
- 239000012530 fluid Substances 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 5
- 238000004904 shortening Methods 0.000 claims description 3
- 230000000750 progressive effect Effects 0.000 claims description 2
- 230000010355 oscillation Effects 0.000 description 9
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- 230000003247 decreasing effect Effects 0.000 description 2
- 230000008034 disappearance Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
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Classifications
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- 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
- F01C1/082—Details specially related to intermeshing engagement type machines or engines
- F01C1/084—Toothed wheels
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- 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
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/082—Details specially related to intermeshing engagement type pumps
- F04C18/084—Toothed wheels
-
- 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
- F04C2/082—Details specially related to intermeshing engagement type machines or pumps
- F04C2/084—Toothed wheels
-
- 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
Definitions
- the present invention relates to a rotating machine with capsulism.
- capsule machine is meant a machine in which two profiled members have annular profiles which mesh with each other by defining between them chambers - or capsules - of variable volume.
- the invention relates more particularly to machines of which one of the profiles is internal to the other, one being lobed and the other (m-1) -lobed, where the integer m is greater than or equal to 2.
- An “m-lobed” profile is called an annular profile defined by a pattern forming a lobe dome and a lobe hollow, this pattern repeating m times around the center of a primitive circle associated with this profile.
- a profile (m-1) -lobed is an annular profile defined by a pattern forming a lobe dome and a lobe hollow, this pattern repeating (m-1) times around the center of a primitive circle associated with this profile .
- the profiles cooperate with each other by a sort of meshing during which their respective primitive circles roll on each other at a rolling point which is fixed relative to a connecting member with respect to which revolve the two profiled members, each along an axis passing through the center of its original circle.
- the capsulism machines can for example be hydraulic motors, hydraulic pumps, compressors or expansion machines.
- EP-A-0870926 describes a capsulism machine of the so-called "gerotor” type, that is to say in which the inner profiled member is (m-1) -lobed. The geometry of this machine is classic in itself. The document relates more particularly to the achievement of a determined play between the profiles.
- EP-539273-B1 describes various capsulism machines, in particular machines with two lobes on the inside profile and three on the outside profile, and conversely machines with three lobes on the inside profile and only two lobes on the outside profile.
- US-A-1 892 217 describes the Sparrow pump. Instead of having cylindrical profiles, this gerotor type machine has helical profiled members with a total helix angle of several turns. The capsules are formed at one axial end of the profiled members and are then transported without variation in volume to the other end, where they disappear. Two remarkable results are obtained: The distribution is simplified to the extreme since it suffices that the capsules open freely on the inlet at one end and on the outlet at the other end. And on the other hand, the flow is strictly constant.
- WO 93/08402 describes improvements to the Moineau pump.
- the aim of the present invention is to seek optimization with regard to the quality of the contacts between the profiles, the switching between the suction and the delivery by the distribution, and the progressiveness of the birth and the disappearance of each capsule.
- osculating contact is meant a point of contact where the curvatures of the two profiles are continuous, equal and in the same direction.
- the capsulism machine comprising: two profiled members, inner and respectively outer, which carry an inner annular profile and respectively an outer annular profile, a connecting member rotatably linked with each of the two members profiled along an axis of respective rotation, and in which: the profiles are one m-lobed, the other (m-1) -lobed, and are defined around the axis of rotation of their respective profiled member by m and respectively (m -1) pattern (s) comprising a lobe dome arc and a lobe hollow arc, each profile is the envelope of the other during relative rotations of the profiled members around their respective axis of rotation with meshing of their profiles defining between them the contours of capsules, and rolling without sliding between two primitive circles centered on the respective axes of rotation, is characterized in that in the relative positions of the profiled members for which a point of contact between the profiles is on the tangent to the two primitive circles at their mutual rolling point, the profiled members have at said point of contact continuous
- arcs of the pattern of the profile (m-1) -lobed are a proximal conjugate arc and a distal conjugate arc defined below in a Cartesian coordinate system originating from the center O of the primitive circle associated with the m-lobed profile: a) proximal conjugate arch:
- the proximal conjugate arc and the distal conjugate arc by their Cartesian coordinates originating from the center 0 of the primitive circle associated with the given arc.
- the formulas automatically realize that the two arcs, proximal and distal, not only have the same tangent but also the same curvature at their connection point and this curvature is also the same as that at a corresponding end of the given arc.
- the normal to the conjugate profile at the connection point is tangent to the respective primitive circles of the chosen arc and the conjugate profile at the rolling point of these circles one on the other.
- the radius of the primitive circle of the given arc having been chosen arbitrarily equal to 1, the radius of the primitive circle of the conjugate profile is equal to (m-1) / m. The primitive circle of the conjugate profile is therefore determined.
- x CP ( ⁇ ) ((2 sin ( ⁇ ) - mp ( ⁇ )) sin ( ⁇ ( ⁇ )) + m cos ( ⁇ ) cos ( ⁇ ( ⁇ ))) / mmm
- y CP ( ⁇ ) ((2 sin ( ⁇ ) - mp ( ⁇ )) cos ( ⁇ ( ⁇ )) - m cos ( ⁇ ) sin ( ⁇ ( ⁇ ))) / mmm
- a first class of machines according to the invention is thus produced, in which the internal profile has one more lobe than the external profile.
- the two conjugate arcs, proximal and respectively distal, defined by the formulas according to the invention are placed radially outside the given arc, and the complementary arc of the given arc completes the m-lobed profile inside the conjugate profile, (m-1) -lobed.
- the m-lobed profile is external to the (m-1) -lobed profile; and the m-lobed motif is completed by a complementary distal arc defined by the following set of Cartesian coordinates around the center O:
- FIG. 1 is a front view of the profiled members, showing certain geometrical particularities of a machine of the first class according to the invention
- Figures 2A to 2F are views similar to Figure 1, but on a smaller scale, and showing six successive states of the machine of Figure
- FIG. 1 Figure 3 is a view similar to Figure 1 but relating to a second class machine;
- FIGS. 4A to 4F are views similar to FIG. 3, but on a smaller scale, and showing six successive states of the machine;
- FIG. 5 is a geometric construction illustrating the determination of the parameters of the profiles according to the invention;
- FIGS. 6A, 6B and 6C show the detail, on a large scale, of the passage of the profiles by the oscillation, in the example of FIG. 1, FIG. 6B being that relating to the oscillation, FIGS.
- FIGS. 6A and 6C being offset by a three-degree rotation of the interior profile in one direction and in the other;
- Figures 7A and 7B show, in two different states, a machine of the first class according to the invention with bi-lobed interior profile;
- FIGS. 8A and 8B show, in two different states, a machine of the first class according to the invention with a tri-lobed interior profile;
- FIGS. 9A and 9B show, in two different states, a machine of the first class according to the invention with an octolobed interior profile;
- FIGS. 10A to 101 represent nine different geometries for a machine of the first class according to the invention, with a four-lobed interior profile; - Figures 11A, 11B and 11C show three different geometries for a machine of the first class according to the invention with penta-lobed interior profile;
- Figure 12 is a view of the machine of Figure 11B on an enlarged scale, with diagrammatic representation of certain distribution means;
- Figure 12A is a detail view showing a variant for dispensing in the embodiment of Figure 12;
- - Figure 13 is a view similar to Figure 12 but relating to the machine of Figure 1;
- Figure 14 is a schematic perspective view of a machine whose organs profiles are helical with successive profiles according to Figure 1;
- Figure 15 is a schematic axial sectional half view of a machine according to the invention;
- - Figure 16 is a partial axial sectional view of a machine according to the invention, with variable displacement;
- FIGS. 17A and 17B show in two different states a machine of the second class according to the invention, with a single-lobed interior profile;
- Figures 18A and 18B show in two different states a machine of the second class according to the invention, with di-lobed interior profile;
- FIGS. 19A and 19B show in two different states a machine of the second class according to the invention, with a tri-lobed interior profile;
- FIGS. 20A and 20B show in two different states a machine of the second class according to the invention, with a four-lobed interior profile;
- FIGS. 21A and 21B show in two different states a machine of the second class according to the invention, with a penta-lobed internal profile;
- FIGS. 22A and 22B show in two different states a machine of the second class according to the invention, with hepta-lobed internal profile;
- FIGS. 23A and 23B show in two different states a machine of the second class according to the invention, with a three-lobed internal profile in a geometry different from that of FIGS.
- Figures 24A and 24B are similar to Figures 23A and 23B respectively, but in a still different geometry;
- - Figures 25A and 25B are similar to Figures 23A and 23B respectively, but in a still different geometry;
- Figures 26A and 26B show in two different states a machine of the second class according to the invention, with di-lobed interior profile but in a geometry different from that of Figures 18A and 18B, more particularly suitable for the production of a compressor ;
- Figures 27A and 27B are similar to Figures 26A and 26B, but with asymmetrical profiles;
- 28A to 28F show very schematically in six different states a first embodiment of a nesting machine according to the invention, with an intermediate profiled di-lobed member mounted between two tri-lobed profiles; and - Figures 29A to 29F show very schematically in six different states a second embodiment of a nesting machine according to the invention, with an intermediate profiled tri-lobed member mounted between two di-lobed profiles;
- the machine comprises an internal profiled member 1 and an external profiled member 2 which surrounds the internal profiled member 1.
- the internal profiled member 1 has on its external periphery a lobed profile 3 and the external profiled member 2 has on its internal periphery a lobed profile 4 which surrounds the lobed profile 3 of the internal profiled member 1.
- One profile has one more lobe than the other.
- FIG. 1 which corresponds to what is called in the context of the invention a machine of the first class, it is the internal profile 3 which has one more lobe than the external profile 4. It is said that the interior profile 3 is three-lobed and that the exterior profile 4 is (m-1) -lobed.
- m 6 so that the internal profile 3 is hexa-lobed and the profile 4 of the external profiled member 2 is penta-lobed.
- Each profile 3, 4 has symmetry by rotation around the origin of the primitive circle which is associated with it and the order of this symmetry is the number of its lobes.
- the profile 3 of the internal member 1 has a symmetry of order 6 around a center O
- the profile 4 of the external profiled member 2 has a symmetry of order 5 around a center O ' .
- Each lobe is defined by a respective pattern, the profile 3 or 4 being defined by reporting m times or respectively (m- 1) times its respective pattern by rotation of 2 ⁇ / m or respectively 2 ⁇ / (ml) around the center of symmetry O or respectively O '.
- Each of the profiles 3, 4, has a primitive circle 6, 7, of center O and respectively O '. The radii of the primitive circles are proportional to the number of lobes of the profile with which they are respectively associated, so that they are tangent to each other at a point R located on the axis Ox.
- Each motif consists of a "lobe dome" and a "lobe hollow".
- a “lobe dome” is a projecting part, therefore a part radially distant from the center when it is the interior profile and a part radially close to the center when it is the exterior profile.
- a “lobe trough” is a generally concave part, therefore close to the center when it is an internal profile and far from the center when it is an external profile.
- the apex of a lobe dome is called the "top of the lobe" and the bottom of the lobe the deepest point of a lobe trough.
- the profiles have a mirror symmetry with respect to rays passing through the apexes of lobes and the bottoms of lobes, but this symmetry is not essential within the meaning of the invention, as will be seen below. .
- the m-lobed profiled member 1 is articulated to a connecting member, not shown in FIG. 1, along an axis of rotation coinciding with the center O.
- the member profile (m-1) -lobed 2 is articulated to the connecting member along an axis of rotation coinciding with the center 0 'of its original circle.
- the two profiled members rotate with respect to the connecting member about their respective axis of rotation 0, 0 ', so that the two primitive circles 6, 7 roll on each other at point R which remains stationary relative to the connecting member. Consequently, the reference frame Ox, Oy is immobile with respect to the connecting member, as are the centers 0 and 0 '. Furthermore, the description made so far also implies that the profiled member m-lobed 1 performs (ml) / m turn when the profiled member (m-1) -lobed 2 performs a complete turn. During this combined movement of the two profiled members 1 and 2, each lobe dome of each profile 3 or 4 is in contact with the other profile. In a region located to the right of FIG.
- each lobe dome of one of the profiles forms a single contact with a lobe dome of the other profile.
- a single contact Ci is notably shown.
- each lobe dome of one of the profiles is in contact with a lobe hollow of the other profile.
- the profiles determined in a manner which will be described later, define an osculating contact between the two profiles when the contact point is made in B N or B M. This means that the profiles have at their contact point located at B N or B M not only a common tangent, but also have continuous, equal and same direction curvatures.
- the center of curvature common to the two profiles in their oscillation coincides with the rolling point R, so that their radius of curvature is equal to the distance between R and B N , or respectively B M.
- This oscillation ensures a contact between the two profiles which is of excellent quality.
- the contact as Ci follows the action curve CA X until it comes to coincide with the bifurcation point B N to form l above oscillation. From there, the contact splits into two separate contacts, each following one of the two action curves CA 2 and CA 3 . Then these two distinct contacts are again fused into an osculating contact at the point of bifurcation B M.
- Capsules - or chambers - are defined between the two profiles 3 and 4 and between the contact points successive.
- a capsule is being born at the point of contact C 2 .
- the capsule being born at the bifurcation point B N will successively form the capsules V lt V 2 , ..., V 9 .
- the capsules Vi to V 4 are in the volume growth phase while the capsules V 5 to V 9 are in the volume decrease phase.
- the growth phase extends over almost a full turn, the decay phase also, so that the full cycle extends over a little less than two turns.
- the hydraulic fluid is at high pressure in the capsules V x to V 4 in the growing phase, and at low pressure in the capsules V 5 to V 9 in the decreasing phase. Capsules in the growth phase and subjected to pressure alternate with capsules in the decay phase and which are not subjected to pressure. If the hydraulic machine operates as a pump, the same alternation is noted except that it is the capsules in the decay phase which are subjected to the pressure and the capsules in the growth phase which are in the process of admitting the fluid to be pumped.
- Figures 2A to 2F show six successive angular positions of the two profiled members 1 and 2 of the machine of Figure 1, from the situation shown in Figure 1, which is also that of Figure 2A.
- the situation represented in FIG. 2F corresponds to the passage of the capsule V4 by its maximum volume.
- the example of FIG. 3 will only be described for its differences from that of FIG. 1.
- the m-lobed profile 13 is now outside the (m-1) -lobed profile 14, and belongs to a profiled member 11 which is external and surrounds the profiled member 12 carrying the profile (m-1) -lobed 14.
- FIGS 4A to 4F represent six successive states of the machine of Figure 3, from the situation shown in Figure 3, which is also that of Figure 4A.
- the capsule V 4 has reached a position where it is symmetrical with respect to the axis Ox so that the direction of variation of its volume is changing. This is why it is in this figure that the intake 8 and discharge 9 holes also shown are formed through a flange which, moreover, laterally closes the capsules.
- the capsule V 4 communicates neither with the light 8 nor with the light 9.
- the capsules in the growth phase communicate with the light 8 which extends to the rear contact point C 4 of the capsule V 4 .
- the capsules in the decay phase communicate with the discharge light 9 which leaves from the point of contact before C s of the capsule V 4 .
- the flange (s) in which (s) are defined the lights 8, 9, are integral with the connecting member symbolized by the mark Oxy.
- M 0 and M ⁇ are tangent to two different points of the primitive circle 6.
- the quantities ( ⁇ , ⁇ , p) are defined univocally by the point M.
- the point M is defined univocally by these quantities: we construct the half-line of origin O and of polar angle ⁇ , then the points P and D by carrying the angles ⁇ ⁇ from this half-line.
- the given arc is a differentiable arc on which the angle ⁇ is a coordinate between 0 and ⁇ . This means that when the point M crosses this arc, the angle ⁇ which is associated with it takes once and only once each value between 0 and ⁇ .
- These arcs form two classes according to the relative direction of the travel and the sweep, and these two classes are associated with the two aforementioned classes of conjugate profiles and consequently of machines.
- ⁇ ( ⁇ ) p' ( ⁇ )
- x op ( ⁇ ) (1 + (sin ( ⁇ ) - mp ( ⁇ )) sin ( ⁇ ⁇ m ⁇ ( ⁇ ) ) + (m - 1) cos ( ⁇ ) cos ( ⁇ ⁇ m ⁇ ( ⁇ ) )) / m m-1 m-1
- y Cjp ( ⁇ ) ((sin ( ⁇ ) - mp ( ⁇ )) cos ( ⁇ ) - (m - 1) cos ( ⁇ ) sin ( ⁇ - m ⁇ ( ⁇ ) )) / m m-1 m- 1
- the given arc is first class when: p '(0)> 0 and ⁇ ' ( ⁇ ) ⁇ 0
- the completed profile is formed by the concatenation of the given arc and the proximal complementary arc, repeated by rotations of 2 ⁇ / m around the origin.
- the profile is of order m, that is to say, it is preserved by the rotation of 2 ⁇ / m (around the origin) and that it has m lobes or teeth.
- This is the profile partially shown in Figure 5.
- the conjugate profile consists of the concatenation of the proximal conjugate arc and the distal conjugate arc, repeated by rotations of 2 ⁇ / (ml) around the center O 'of coordinates (1 / m, 0).
- the profile is of order (m-1), in the same sense as above.
- the ratio of the rotational speeds is (m-1) / m.
- the completed profile is internal to the conjugate profile.
- the given arc is second class when: p '(0) ⁇ 0 and p' ( ⁇ )> 0.
- the study of the regularity of the connections shows that one must have more precisely:
- the completed profile is formed by the concatenation of the given arc and the distal complementary arc, repeated by rotations of 2 ⁇ / m around the origin.
- the profile is of order m.
- the conjugate profile is made, as for the first class, by the concatenation of the proximal conjugate arc and the distal conjugate arc, repeated by rotations of 2 ⁇ / (m-1) around the center O 'of coordinates (1 / m, 0).
- the profile is of order (m-1).
- the ratio of the rotational speeds is (m-1) / m.
- the completed profile is external to the conjugate profile.
- the inequalities relating to p '(0) and p' ( ⁇ ) are strict. This point controls the continuity of the curvature of the profiles at the connections between the arcs.
- N ( ⁇ ) (p ( ⁇ ) p '( ⁇ )) / cos ( ⁇ ) -sin ( ⁇ ) ⁇ 0 and this condition simply expresses that the quotient by cos ( ⁇ ) of the derivative of the square of the vector radius guard a constant sign.
- V CpD ( ⁇ ) (p ( ⁇ ) + 2 sin ( ⁇ )) p '( ⁇ ) / (m cos ( ⁇ )) + (2m p ( ⁇ ) - (m 2 - 4) sin ( ⁇ )) / m 2 ⁇ 0 for the conjugate arcs:
- V Cjp ( ⁇ ) (mp ( ⁇ ) - sin ( ⁇ )) p '( ⁇ ) / ((m - 1) cos ( ⁇ )) - (p ( ⁇ ) + (m - 2) sin ( ⁇ )) / (m - 1) ⁇ 0
- Y CjD ( ⁇ ) (mp ( ⁇ ) + sin ( ⁇ )) p '( ⁇ ) / ((m - 1) cos ( ⁇ )) + (p ( ⁇ ) - (m - 2) sin ( ⁇ )) / (m - 1) ⁇ 0
- n is the order of the epicycloid, which one can choose real (positive and not too small)
- ⁇ is an angular parameter ranging between 0 and ⁇ / 2, which describes the shortening (or eccentricity);
- p 0 is the parallelism parameter, i.e. a parameter characterizing the distance to the base epicycloid.
- the variability of the parameters (before we come up against a singularity ) is greater than in the previous case, in particular with regard to p 0 .
- the given arc must have the following property: when it is traversed from its origin to its end, its normal "regularly sweeps" the primitive circle, and in particular, the normals at the origin and at the end of the arc are tangent to the primitive.
- the possible arcs are divided into two disjoint classes: those whose normal sweeps the primitive circle "in the opposite direction” from the current point M and those whose normal sweeps it "in the same direction” as the current point M.
- the first class consists of pairs of profiles such that the interior profile has one more lobe than the exterior profile; the second, on the contrary, is such that the interior profile has one lobe less than the exterior profile.
- These two classes have very different morphologies and properties as described above.
- the formulas obtained for the arcs are invertible, in the sense that we can construct the family of the four arcs which define the two profiles, starting from any one of them. This does not mean that they play completely symmetrical roles: in fact, of the two arcs which constitute each profile, one of the two comes into contact with the two arcs of the other profile, and the other with only one of them. them.
- the parameterization according to the invention made it possible to determine for the machines according to the invention, simple mathematical expressions for the action curves, namely:
- proximal complementary action curve 1 - sin ( ⁇ ) (((m - 2) / m) sin ( ⁇ ) + p ( ⁇ ))
- y (b) -cos ( ⁇ ) (((m - 2) / m) sin ( ⁇ ) + p ( ⁇ ))
- the proximal and distal complementary action curves pass radially beyond the rolling point R, and the two others on the other side of the origin O with respect to the rolling point R. Only three of these four action curves intervene: the distal complementary action curve is absent for the first class for which the complementary arc distal does not intervene, and the proximal complementary action curve is absent from the second class for which the proximal complementary arc does not intervene.
- Figures 7A, 7B, 8A, 8B, 9A, 9B show different embodiments of machines of the first class. It appears that when the number of lobes is small, for example equal to 2 or 3, the lobar hollows are simply less salient regions, the profile of which may even be convex as regards the inner profiled member. In the very particular case where the profile (m-1) -lobed has only one lobe (FIGS. 7A and 7B), the top of the lobe and the hollow of the lobe are diametrically opposite, if the profile is symmetrical.
- FIGS. 10A to 101 represent nine variants of geometries for a quadri-lobed internal profile in a tri-lobed external profiled member.
- Figures 11A to 11C show three examples of a first class machine with a penta-lobed inner rotor.
- FIG. 11B The embodiment of FIG. 11B is characterized in that the two osculating contacts take place simultaneously, on either side of a capsule V 1 , the volume of which is then maximum.
- FIG. 11A is similar to that of FIG. 1, in the sense that a capsule V 2 whose rear edge has exceeded the bifurcation point B M and has therefore seen disappear behind it capsule Vi, has not yet reached by its edge before the other bifurcation point B N where a future new capsule V 3 will arise before it, which is therefore only indicated by a dashed line.
- the same capsule V 2 covers both the two bifurcation points B N , B M , so that it is still followed by a dying Vi capsule and already preceded by an incipient V 3 capsule.
- the openings From their point coinciding with the connection of the arcs constituting the profile 4, the openings generally extend towards the axes O and O '. These slots 16, depending on whether or not they are covered by the m-lobed profiled member, selectively communicate the capsules with the intake.
- the other flange situated at the axial end which is hidden for the observer of FIG. 12, are made lights 17 which are symmetrical of lights 16 with respect to rays passing through the tops of lobes of the profile (m -1) -lobed 4, and whose angular point coincides with the connection of the two arcs constituting the profile (m-1) lobed 4 on the front slope of each lobe.
- the lights 17 communicate with the hydraulic discharge of the machine.
- the capsule Vi is not isolated only for a short time when its volume is maximum and is therefore not changing.
- the dying capsule was still communicating with the light of neighboring outlet 17 while the capsule Vi communicated with the inlet light 16.
- the new capsule will communicate with the corresponding inlet light 16, while the capsule VI will communicate with the outlet light 17.
- FIG. 12A shows that, in replacement or in addition to the lights 16 and 17, it is also possible to provide, in the profiled member (m-1) -lobed, inlet 18 and outlet 19 channels which open out through the respective slopes lobes of the outer profile 4, substantially at the connections between the two arcs constituting the profile 4 so as to be closed when the profiles are in osculating contact, then to be gradually released by the capsule forming between the two contacts resulting from the disintegration of the osculator contact, in the case of the birth of a capsule for admission, or to be progressively closed with regard to repression, in the case of the death of a capsule.
- the machine has a geometry corresponding to that of Figure 1, apart from the number of lobes.
- the situation is also that shown in FIG. 11A, but when the profiled members 1 and 2 are at a different angle around their respective axes.
- the situation shown in Figure 13 corresponds substantially to that of Figure 2A.
- FIG. 2D it is understood that the capsule V 4 , the rear edge of which has already exceeded the bifurcation point B M and therefore would already communicate with the delivery light of a distribution according to FIG. 12 has still not reached point B N and would therefore always communicate with the intake lumen of such a distribution, which is moreover necessary since the volume of the capsule V 4 is still increasing. It is therefore the communication with the discharge light that must be eliminated.
- FIG. 13 a mask 21 integral with the casing (of the connecting member) and which extends over a certain angular distance towards the front relative to the direction of rotation defined by arrow F, from the bifurcation point B M , to obscure the discharge light in this area.
- a mask 22 is provided to obscure the intake ports over a certain angular zone from the bifurcation point B N towards the rear relative to the direction of rotation.
- the capsule V 2 undergoes volume variations between the moment when its front edge covers the bifurcation point B N and until its rear edge no longer covers the other point of bifurcation B M.
- FIG. 14 represents a particularly preferred embodiment for a machine having a profile according to FIG. 1.
- the principle of distribution is the same as in FIG. 12, and in each plane perpendicular to the axes, the profiles 3 and 4 are those of FIG. 1. However, from one plane to another, each profile 3 or 4 is angularly offset by a determined pitch around its respective axis so as to give all of the profiled members a helical appearance.
- the angular offset between the profiles of the two ends is such that in the situation shown where the capsule V 5 on the intake side reaches the bifurcation point B N , this capsule having itself a helical shape has just left by its rear edge the another oscillation at the other bifurcation point B M.
- the situation which was obtained by a profile in a single plane in the case of FIGS. 11B and 12 is thus restored by helicity, namely that the same cavity is adjacent to a nascent cavity by its front edge and to a cavity dying by its rear edge.
- This cavity V 5 is therefore not isolated only at a short time when the instantaneous speed of variation of its volume is equal to zero.
- FIG. 14 schematically represents an exemplary embodiment of a first class machine according to the invention.
- the inner profiled member 1 is integral with a drive shaft 23 which is motor in the case of a pump and receiver in the case of a hydraulic motor.
- the shaft 23 is supported in rotation, on either side of the profiled member 1, by two bearings 24 in a fixed casing 25 which constitutes the connecting member according to the invention.
- the outer profiled member 2 is supported in rotation by peripheral bearings 26 installed between the outer peripheral wall of the profiled member 2 and a peripheral crown 27 forming part of the casing 25.
- the geometric axis of the shaft 23 corresponds to the center O while the geometric axis, not shown, of the bearings 26 corresponds to the center O '.
- the profiled members 1 and 2 are installed between two flanges 28, 29 through which the intake ports 16 and discharge ports 17 are formed.
- the profiled members 1 and 2 have planar and coplanar end faces on which the corresponding planar end faces of the flanges 28 and 29 bear in leaktight and sliding manner so as to close the capsules except as regards communications selectively established by lights 16 and 17.
- each flange 28 or 29 and a corresponding end wall 31 or 32 of the housing there is between each flange 28 or 29 and a corresponding end wall 31 or 32 of the housing, a respective axial stop 33, 34.
- the flanges 28, 29 are linked in rotation with the external profiled member 2 while being free in translation with respect to this one thanks to grooves 36.
- the interior space between the end wall 31 of the casing on the one hand and the flange 28 and the corresponding face of the profiled member 1 on the other hand is arranged in a chamber subjected to the inlet pressure .
- a chamber subjected to the discharge pressure is formed between the other end wall 32 of the casing on the other hand and the other flange 29 as well as the other end face of the inner profiled member 1 on the other hand.
- the shaft 23 must be mounted with a certain freedom of axial sliding for allow the axial floating of the profiled member 1 between the flanges 31 and 32.
- the outer profiled member 2 is free to rotate so that its drive results from its cooperation with the profiled member 1 and the working fluid.
- the machine is of variable displacement.
- the profiled members 1 and 2 are axially sliding relative to one another.
- the profiled member 2 is axially fixed by pressing against the casing 25 by means of an axial stop 53 and a flange 51.
- the profiled member 1 is axially sliding relative to the casing by means of an actuator 49 which is only schematically represented, acting on the member 1 by means of an axial stop 54 and a flange 52.
- the flange 51 bears in leaktight manner against a flat end face of the outer profiled member 2 and has as a radially inner edge a profiled face 47 which is exactly complementary to the profile 3 of the profiled member 1.
- the flange 51 is in sealed contact with the profile 3 over the entire periphery of the profiled member 1, for sliding axially with respect to the profiled member 1 while being driven in rotation by the profiled member 1.
- the flange 52 is pressed in a sealed manner against a planar end face of the member profile 1 and has on its outer periphery a profiled face 48 which is exactly complementary to the profile 4 of the profiled member 2 so as to press against it in leaktight manner, axially sliding, and ensuring the rotation drive of the flange 52 with the profiled member 2.
- the distribution is ensured by channels 18, 19 according to the embodiment of FIG. 12A.
- Figures 17A to 22B show various embodiments, each in two operating states, for machines of the second class, with numbers of lobes ranging from 1 for the internal profiled member and 2 for the external profiled member (figures 17A and 17B), at 7 for the internal profiled member and 8 for the external profiled member (FIGS. 22A and 22B).
- FIGS. 23A to 25B represent three other possible geometries which illustrate the large variety of geometries achievable for second class machines.
- a capsule arises at the passage of the front slopes of the lobes of the external profile by the osculating contact, at the intersection B of the action curves located upstream of the axis O x carrying the point R. It passes through its maximum after a rotation of just over half a turn. The capsule is then on the side opposite the rolling point relative to the pivots.
- the closure of the capsule is symmetrical with its opening, and the "lifetime" of the capsule is slightly greater than one revolution.
- capsular scission is likely to occur for capsules in the vicinity of their birth or death, that is to say when two lobes are strongly engaged one in one another on the side of the rolling point.
- the volumes of the capsules concerned are small. The course is as follows: at a point inside a capsule being closed, the two profiles come exceptional osculating contact, and the capsule is cut into two sub-capsules. The new osculating contact disintegrates into two simple contacts between which a new capsule is born.
- Each of these two contacts joins the corresponding edge of one of the two sub-capsules being closed and these disappear (generally at different times), one in a normal way when passing through the confluence of the curves of action, and the other in an exceptional way through an oscillation which disappears on the spot.
- the new capsule coalesces with another new capsule which is born normally at the bifurcation of the action curves.
- FIGS. 26A and 26B represent a geometry particularly well suited to the production of a compressor. It is a second class machine, with a di-lobed interior profiled member and a tri-lobed exterior profiled member.
- a machine of this kind and more generally a machine according to the invention has the following advantageous features for producing a compressor, which both go in the direction of limiting leaks:
- the compressor is also the case where the properties of the fluid change between the inlet and the outlet; moreover, the parameters to be optimized are not the same at intake (limitation of the pressure drop) and at delivery (limitation of leaks). For these reasons, it may be preferable to use asymmetrical profiles. An example is given in FIGS. 27A and 27B.
- an intermediate profiled member 62 comprises a first profile 64 of order m-1 on its radially inner face, and a second profile 74 of order (m-1) on its radially face exterior.
- the two profiles have the same primitive circle centered in O '.
- Each of the lobed profiles (m-1) 64, 74 cooperates with an m-lobed profile 63, 73 of a profiled member 61 which is shown fixed in this example.
- the two profiles 63, 73 also have a common pitch circle, which is centered in O.
- the profiles 63 and 64 form a machine of the first class according to the invention and the profiles 73 and 74, a machine of the second class according to the 'invention.
- the intermediate profiled member 82 carries two m-lobed profiles cooperating with two profiles (m-1) -lobed belonging to the profiled member 81.
- Such geometry could allow the manufacture of an internal combustion engine in which, for example, the interior machine would be used for intake and compression, while the exterior machine would be used for expansion and exhaust.
- the invention is not limited to the examples described and shown.
- the internal profiled member is rotated and the external profiled member rotates thanks to the moment of rotation transmitted to the points of contact between the internal profiled member and the external profiled member which is free to rotate in the casing.
- the pressure of the hydraulic fluid tends to cause the cavities subjected to this pressure to evolve in the direction of the enlargement of their volume, which contributes to stressing the external profiled member in the direction of rotation. desired.
- an external drive for example by gear, which forces the two profiled members to rotate in a speed ratio corresponding to the ratio of the number of their lobes. It is also possible to drive the external profiled member and leave the internal profiled member free.
- the propeller pitch is not necessarily the same all along the machine, and the profile can still be varied along the axes of the machine. This allows for example to produce a compressor or an expansion machine in which the volume of the capsules being transferred varies gradually.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Prostheses (AREA)
- Apparatus For Making Beverages (AREA)
- Rotary Pumps (AREA)
- Centrifugal Separators (AREA)
- Slot Machines And Peripheral Devices (AREA)
- Medicinal Preparation (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
- Friction Gearing (AREA)
- Manufacture Of Motors, Generators (AREA)
- Manufacturing Of Micro-Capsules (AREA)
- Formation And Processing Of Food Products (AREA)
- Retarders (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2497491A CA2497491C (fr) | 2002-09-05 | 2003-09-04 | Machine tournante a capsulisme |
US10/526,971 US7520738B2 (en) | 2002-09-05 | 2003-09-04 | Closed system rotary machine |
EP03769566A EP1546560B1 (fr) | 2002-09-05 | 2003-09-04 | Machine tournant a capsulisme |
AU2003278257A AU2003278257A1 (en) | 2002-09-05 | 2003-09-04 | Closed system rotary machine |
DE60310965T DE60310965T2 (de) | 2002-09-05 | 2003-09-04 | Rotationsmaschine mit kapselsystem |
JP2004533568A JP5540364B2 (ja) | 2002-09-05 | 2003-09-04 | 回転式変位マシーン |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0210959A FR2844312B1 (fr) | 2002-09-05 | 2002-09-05 | Machine tournante a capsulisme |
FR02/10959 | 2002-09-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004022976A1 true WO2004022976A1 (fr) | 2004-03-18 |
Family
ID=31725839
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2003/002642 WO2004022976A1 (fr) | 2002-09-05 | 2003-09-04 | Machine tournant a capsulisme |
Country Status (9)
Country | Link |
---|---|
US (1) | US7520738B2 (fr) |
EP (1) | EP1546560B1 (fr) |
JP (1) | JP5540364B2 (fr) |
AT (1) | ATE350581T1 (fr) |
AU (1) | AU2003278257A1 (fr) |
CA (1) | CA2497491C (fr) |
DE (1) | DE60310965T2 (fr) |
FR (1) | FR2844312B1 (fr) |
WO (1) | WO2004022976A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014106824A3 (fr) * | 2013-01-06 | 2015-02-19 | Kujovič Jozef | Espace de travail à piston rotatif |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005071230A2 (fr) | 2004-01-12 | 2005-08-04 | Liquidpiston, Inc. | Moteur a combustion a cycle hybride et procedes associes |
CA2657959A1 (fr) | 2006-08-02 | 2008-02-07 | Liquidpiston, Inc. | Moteur rotatif a cycle hybride |
US7621143B2 (en) * | 2006-09-28 | 2009-11-24 | Lenovo (Singapore) Pte. Ltd. | Cooling systems |
US20080310984A1 (en) * | 2007-06-12 | 2008-12-18 | General Electric Company | Positive displacement capture device |
KR20110040978A (ko) * | 2008-08-04 | 2011-04-20 | 리퀴드피스톤 인크. | 정적 열량 부가 엔진 및 방법 |
GB2497225B (en) * | 2010-08-16 | 2017-10-11 | Nat Oilwell Varco Lp | Reinforced stators and fabrication methods |
EP2691607B1 (fr) | 2011-03-29 | 2016-07-20 | LiquidPiston, Inc. | Moteur à rotor cycloïde |
DE102012020326A1 (de) * | 2012-10-17 | 2014-04-17 | Herbert Jung | Rotationskolben-Verdrängermaschine |
AU2012394943B2 (en) | 2012-11-20 | 2015-05-28 | Halliburton Energy Services, Inc. | Acoustic signal enhancement apparatus, systems, and methods |
BR112015011460A2 (pt) | 2012-11-20 | 2017-07-11 | Halliburton Energy Services Inc | aparelho, sistema, e, método implementado por processador |
SG10201708784YA (en) * | 2013-01-25 | 2017-12-28 | Liquidpiston Inc | Air-cooled rotary engine |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1002642A (en) * | 1961-09-26 | 1965-08-25 | Mono Pumps Africa Pty | Improvements in helical screw pumps |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1833993A (en) * | 1928-08-24 | 1931-12-01 | Myron F Hill | Method of making internal rotors |
US1892217A (en) | 1930-05-13 | 1932-12-27 | Moineau Rene Joseph Louis | Gear mechanism |
US2209201A (en) * | 1937-08-28 | 1940-07-23 | Myron F Hill | Change speed gear |
US2988008A (en) * | 1956-02-07 | 1961-06-13 | Wankel And Nsu Motorenwerke Ag | Rotary piston machines |
US3117561A (en) * | 1960-04-26 | 1964-01-14 | Bonavera Victor | Rotor type power generating or work performing means |
US3695791A (en) * | 1970-09-18 | 1972-10-03 | Emerson Electric Co | Variable sealed hydraulic pump or motor |
US3884600A (en) * | 1973-11-08 | 1975-05-20 | Gray & Bensley Research Corp | Guidance means for a rotary engine or pump |
JPS5460638A (en) * | 1977-10-24 | 1979-05-16 | Shigeyoshi Osada | Gear with inscribing nonncircular rolling curve |
EP0094379B1 (fr) | 1982-05-12 | 1987-01-28 | Schwab, Walter, Mag.rer.nat. | Pompe rotative propulsant des matières gazéiformes et liquides, spécialement pour l'emploi par propulsion dans des pompes à membrane pour le sang |
JPH0756268B2 (ja) * | 1987-07-27 | 1995-06-14 | 株式会社ユニシアジェックス | オイルポンプ |
FR2683000B1 (fr) | 1991-10-23 | 1994-02-04 | Andre Leroy | Machine volumetrique a mouvement planetaire et geometrie hypertrochouidale. |
FR2683001B1 (fr) | 1991-10-23 | 1994-02-04 | Andre Leroy | Machine volumetrique axiale. |
DE4204186A1 (de) | 1992-02-13 | 1993-08-19 | Heinrich Schmeing | Rotationskolbenpumpe |
DE4345273C2 (de) * | 1993-07-03 | 1997-02-06 | Eckerle Rexroth Gmbh Co Kg | Hydraulische Zahnradmaschine (Pumpe oder Motor), insbesondere Innenzahnradmaschine |
DE4425429A1 (de) | 1994-07-19 | 1996-01-25 | Juergen Walter | Hydraulikmaschine |
JP2739873B2 (ja) * | 1995-10-04 | 1998-04-15 | クムウオン カンパニー リミテッド | 圧縮機用スクリューロータの歯形 |
US6106250A (en) | 1996-02-02 | 2000-08-22 | Unisia Jecs Corporation | Lobed-rotor-type pump having a communication passage between working-fluid chambers |
EP0799966A3 (fr) | 1996-04-02 | 1999-02-03 | GEISERT ENGINEERING GmbH | Trépan de forage à percussion |
ITPR960017A1 (it) | 1996-04-04 | 1997-10-06 | Vittorio Bertoli | Pompa epitrocoidale |
US6077059A (en) | 1997-04-11 | 2000-06-20 | Mitsubishi Materials Corporation | Oil pump rotor |
RU2140018C1 (ru) * | 1998-05-13 | 1999-10-20 | Бродов Михаил Ефимович | Способ преобразования движения в машине объемного расширения (вытеснения) и объемная машина горбаня-бродова |
JP2000130372A (ja) * | 1998-10-23 | 2000-05-12 | Mayekawa Mfg Co Ltd | 内接型ロータ圧縮機及びその製造方法 |
-
2002
- 2002-09-05 FR FR0210959A patent/FR2844312B1/fr not_active Expired - Fee Related
-
2003
- 2003-09-04 JP JP2004533568A patent/JP5540364B2/ja not_active Expired - Fee Related
- 2003-09-04 EP EP03769566A patent/EP1546560B1/fr not_active Expired - Lifetime
- 2003-09-04 AU AU2003278257A patent/AU2003278257A1/en not_active Abandoned
- 2003-09-04 WO PCT/FR2003/002642 patent/WO2004022976A1/fr active IP Right Grant
- 2003-09-04 DE DE60310965T patent/DE60310965T2/de not_active Expired - Lifetime
- 2003-09-04 US US10/526,971 patent/US7520738B2/en not_active Expired - Fee Related
- 2003-09-04 CA CA2497491A patent/CA2497491C/fr not_active Expired - Fee Related
- 2003-09-04 AT AT03769566T patent/ATE350581T1/de not_active IP Right Cessation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1002642A (en) * | 1961-09-26 | 1965-08-25 | Mono Pumps Africa Pty | Improvements in helical screw pumps |
Non-Patent Citations (1)
Title |
---|
WANKEL FELIX: "Einteilung Der Rotationskolbenmaschinen", EINTEILUNG DER ROTATIONS -KOLBENMASCHINEN. ROTATIONS - KOLBENMASCHINEN MIT PARALLELEN DREHACHSEN UND ARBEITSRAUMUMWANDUNGEN AUS STARREM WERKSTOFF, STUTTGART, DEUTSCHE VERLAG-ANSTALT, DE, 1963, pages 7 - 59, XP002204164 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014106824A3 (fr) * | 2013-01-06 | 2015-02-19 | Kujovič Jozef | Espace de travail à piston rotatif |
Also Published As
Publication number | Publication date |
---|---|
FR2844312A1 (fr) | 2004-03-12 |
AU2003278257A8 (en) | 2004-03-29 |
DE60310965D1 (de) | 2007-02-15 |
CA2497491C (fr) | 2011-12-20 |
ATE350581T1 (de) | 2007-01-15 |
AU2003278257A1 (en) | 2004-03-29 |
FR2844312B1 (fr) | 2006-04-28 |
EP1546560B1 (fr) | 2007-01-03 |
US20050271535A1 (en) | 2005-12-08 |
US7520738B2 (en) | 2009-04-21 |
JP2005538289A (ja) | 2005-12-15 |
CA2497491A1 (fr) | 2004-03-18 |
EP1546560A1 (fr) | 2005-06-29 |
JP5540364B2 (ja) | 2014-07-02 |
DE60310965T2 (de) | 2007-12-27 |
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