WO2005018784A1

WO2005018784A1 - Emulsifier with pulsating rotors and stators

Info

Publication number: WO2005018784A1
Application number: PCT/RU2003/000385
Authority: WO
Inventors: Boris Alexandrovich Kesel
Original assignee: Emulsion Technologies Corporation
Priority date: 2003-08-26
Filing date: 2003-08-26
Publication date: 2005-03-03
Also published as: AU2003304443A1

Abstract

An emulsifier (20) having a rotor (39) positioned between two stators (31, 36). The rotor (39) and stators (31, 36) include complementary shaped inverted truncated conical areas with a plurality of projections and recesses thereon. The media to be emulsified is introduced into a chamber (110) holding the stators (31, 36) and rotor (39) passing therethrough and then in a reverse direction (113) at an oblique angle relative to the axis of rotation (19).

Description

EMULSIFIER WITH PULSATING ROTORS AND STATORS

BACKGROUND OF THE INVENTION The present invention relates generally to the field of devices for breaking down or emulsifying particles. DESCRIPTION OF THE PRIOR ART Emulsifϊcation of various particles may be achieved mechanically and/or via chemical processes. For example, the Jet Cooking process is used to reach the liquefaction stage in the production of corn ethanol. Such a process utilizes substantial energy due to the amount of heat required to emulsify the material. I have devised a mechanical emulsifier resulting in substantial savings of the energy required to emulsify the material. The emulsifier or mechamcal generator provides a continuous emulsifϊcation process of any type of fine particle homogeneous suspensions particularly in the field of ethanol production and Bio-Fuels, Bio- Diesel, EDiesel® that is a registered trademark of National Soydiesel Development Board, Aqua-Diesel, Purinox® that is a registered trademark of Lubrizol Corporation, Hydro-Diesel, and Clean-Fuel Blending. The growing cost of fossil fuels, the green-house, gas emission problems, together with more stringent air quality standards, greatly encourage the use of Bio-Energy. The high cost to produce ethanol restricts higher consumption. Thus, governments currently subsidize the production of ethanol and are therefore encouraging the public and private sectors to develop and implement new and more efficient methods of ethanol production. Water and diesel fuel blending has become the focus of many States and Municipalities. The emulsification of water and diesel fuel is currently done with the use of chemicals, which holds the emulsion in suspension until burned in the combustion chamber of a diesel engine. It is claimed that the Purinox® water/diesel emulsion has a suspension life of two months before it has to be re- agitated to re-suspend the emulsion. Purinox® adds a proprietary chemical package that holds the suspension stable for the two month period. The generator or emulsifier disclosed herein has successfully emulsified such a combination mechanically without chemistry. For many years, people have relied on reaching the liquefaction processing in corn processing for ethanol by the use of high temperature (230 degrees F and higher) cooking. My emulsifier mechanically disrupts cell tissue into finite particle sizes exposing a greater volume of starch without the cooking process. The ultimate benefits are a sizable volume of heat energy saved with an increase in yield. A growing interest exists in Bio-Fuels by blending spent cooking oils or soybean oil with diesel fuel. The end result is a radical reduction in harmful exhaust emissions. The emulsifier disclosed herein may be particularly useful in such a blending. A variety of emulsifiers or blenders have been developed. The emulsifiers typically fall into two categories. The first category, known as the axial emulsifier, includes a plurality of rotor blades extending perpendicularly outward from the axis of rotation of the rotor with the blades extending between stationary stator blades also extending perpendicularly toward the axis of rotation. Thus, as rotation is imparted to the rotor, the material being emulsified is driven the length of the axis of rotation and forced between the rotor blades and stator blades. In axial rotor-pulsing machines, process media is moved along the rotational axis of the rotor. During this movement, the media is subject to axial forces caused by pulsing pressures. The pulsing pressures, in turn, are generated by the movements of the rotor elements responsible for creating turbulence with respect to the corresponding elements of the stator. In a radial rotor pulsing machines, the process media is moved in the direction perpendicular to the axis of the rotor along an S path. Such an S emulsifier subjects the media under treatment to pulsing pressure in both the radial and tangential direction. It is well known that axial machines have low effectiveness and are used only in the processes of homogenization and mixing. The radial devices are effective in the processes of homogenization, mixing and creating dispersion. This higher effectiveness is explained by the fact that the rotors of the axial machine, depending upon the stiffness and RPMs, produce different modes of vibrations of disc assemblies. These vibrations induce the vibrations of stators of the devices which explains higher total impact of turbulence creating elements on the media under treatment. The emulsifier disclosed herein achieves superior results by breaking the particles suspended in the liquid into smaller and smaller pieces as the particles and fluid move away from a rotating impeller in an oblique direction relative to the axis of rotation of the impeller with the liquid media being emulsified in the axial, radial and circumferential direction. The impeller is rotated in the range of 3,000 revolutions per minute to 20,000 revolutions per minute with the media being temporarily trapped within the recesses of the stators and rotor by projections or ridges formed on the stators and rotors causing the media to vibrate within the recesses at ultrasonic frequency. The fluid escapes the recesses once the projections move apart from the recesses thereby decreasing the pressure resulting in an ultrasonic pulsing.

SUMMARY OF THE INVENTION One embodiment of the present invention is an emulsifier of material comprising a chamber to receive material to be emulsified; an inlet conduit leading into the chamber to direct the material into the chamber; an outlet conduit leading from the chamber after the material is emulsified; and a first stator positioned within the chamber and having a stator first flow surface. The stator first flow surface includes a plurality of first rings of different diameters arranged in conical fashion about a longitudinal axis with each of the rings including a plurality of spaced apart first ridges. The first recesses are interspersed between the first ridges. A second stator is positioned within the chamber and spaced apart from the first stator and includes a stator second flow surface. The second stator includes a plurality of second rings of different diameters arranged in conical fashion about the longitudinal axis with each of the rings including a plurality of spaced apart second ridges and second recesses interspersed between the second ridges. A rotor is positioned within the chamber between the first stator and the second stator and has an axis of rotation coincident with the longitudinal axis. The rotor includes a rotor first flow surface positioned adjacent the stator first flow surface. The rotor further has a rotor second flow surface positioned adjacent the stator second flow surface. The rotor first flow surface and the rotor second flow surface each includes a plurality of rotor rings of different diameters arranged in conical fashion with each of the rings including a plurality of spaced apart rotor ridges and rotor recesses interspersed between the rotor ridges. The rotor rings form inwardly facing rings and outwardly facing rings. A driver is coupled to the rotor to rotate the rotor while the first stator and the second stator remain stationary while rotor ridges move past the first recesses and the second recesses pulsating the material as the material flows through the rotor recesses and the first recesses and second recesses emulsifing the material. An object of the present invention is to provide a new and improved emulsifier for a reduction in the size of the particles suspended in a liquid without the use of heat being added to the emulsification process. A further object of the present invention is to provide a multi-rotor, micro- particle generator that mechanically disrupts cell tissue of particles into finite sizes. Another object of the present invention is to provide an emulsifier that processes particles suspended in a liquid between a rotor and stator while creating ultrasonic vibration of the device further resulting in breakdown of the particles. In addition, it is an object of the present invention to provide an emulsifier that forces liquid media in the axial, radial and circumferential direction. Related objects and advantages of the present invention will be apparent from the following description.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of the emulsifier mounted to a stand. FIG. 2 is an enlarged exploded view of the rotor positionable between two stators of the emulsifier of Fig. 1. FIG. 3 is a side view of the top stator and drive mechanism. FIG. 4 is a top view taken along a line and looking in the direction of arrows 4-4 of Fig. 3. FIG. 5 is a bottom view taken along a line and looking in the direction of arrows 5-5 of Fig. 3. FIG. 6 is a side view of the rotor. FIG. 7 is a top view taken along a line and looking in the direction of arrows 7-7 of Fig. 6. FIG. 8 is a bottom view taken along a line and looking in the direction of arrows 8-8 of Fig. 6. FIG. 9 is a top view of the bottom stator in the housing taken along a line and looking in the direction of arrows 9-9 of Fig. 2. FIG. 10 is a cross-sectional view taken along a line and viewed in the direction of arrows 10-10 of Fig. 6. FIG. 11 is a cross-sectional view taken along a line and viewed in the direction of arrows 11-11 of Fig. 3. FIG. 12 is a cross-sectional view taken along a line and viewed in the direction of arrows 12-12 of Fig. 9.

DESCRIPTION OF THE PREFERRED EMBODIMENT For the purposes of promoting an understanding of the principles of the invention, reference will now be made to the embodiment illustrated in the drawings and specific language will be used to describe the same. It will nevertheless be understood that no limitation of the scope of the invention is thereby intended, such alterations and further modifications in the illustrated device, and such further applications of the principles of the invention as illustrated therein being contemplated as would normally occur to one skilled in the art to which the invention relates. Referring now more particularly to Fig. 1, there is shown an emulsifier 20 removably mounted to a stand 21. The emulsifier includes a rotor positioned between a pair of stators located within a chamber formed by housing 22. The liquid media containing suspended particles that is to be emulsified is contained within a reservoir 23, in turn, connected to a plurality of inlet conduits 24 and 25 leading into the chamber within housing 22. Once the media is emulsified, the resulting end product exits housing 22 via outlet conduit 26. A motor or other suitable drive means 27 is connected via a chain, belt or by a direct drive 28 to spindle 29 having the rotor mounted thereon thereby rotating the rotor between the pair of stators. Spindle 29 rotates about longitudinal axis 19 (Fig. 2) that extends centrally through the top stator 31 , rotor 39 and bottom stator 36. A single reservoir 23 is depicted in Fig. 1 , it being understood that multiple reservoirs may be utilized to direct the media to be emulsified into the inlet conduits 24 and 25. Likewise, a single inlet conduit may be utilized leading from the reservoir to the chamber within housing 22. Likewise, while only two inlet conduits 24 and 25 are shown in Fig. 1, it is to be understood that a greater number of inlet conduits maybe utilized. The stand 21 (Fig. 1) consists of a base 30 having a plurality of upstanding legs 61 mounted thereto. A top plate 32 is fixedly mounted atop the legs and is shaped to removably hold housing 22. Further, plate 32 includes a hollow center allowing the bottom portion 117 of the emulsifier along with outlet conduit 26 to project therethrough. Housing 22 (Fig. 2) includes a cylindrical side wall 33 fixedly mounted to a top ring 34 and a bottom plate 35. A bottom stator 36 is fixedly mounted within and is spaced apart inwardly of sidewall 33. The top stator 31 is fixedly mounted to a top plate 38 that fits atop and is fastened to ring 34. Spindle 29 is rotatably mounted to plate 38 and projects through the center of stator 31 into rotor 39. Spindle 29 is fixedly attached to a central portion of rotor 39 thereby rotating the rotor as motor 27 rotates spindle 29. The outwardly facing surface of rotor 39 forms a truncated, inverted cone that is rotatably received by the complementary shaped inwardly facing surface 41 of rotor 36. That is, surface 41 of the bottom stator forms an inwardly facing inverted, truncated conical surface. Likewise, stator 31 fits into rotor 39. Stator 31 has an outwardly facing inverted, truncated conical surface that is complementary received by the inwardly facing inverted, conical surface 42 of rotor 39 (Fig. 7). Rotor 39 consists of a plurality of rings fastened together forming the inwardly and outwardly facing conical surfaces. In the embodiment shown in the drawings, the rotor as well as both stators each have seven such rings; however, it is to be understood that the present invention includes rotors and stators having more than and less than seven rings. The seven rings 50-56 shown in Fig. 10 are of decreasing diameter and are held in place by threaded rods 60 extending upwardly from a central plate 56. Plate 56 has a circumferentially extending downwardly turned ear 62 having threaded rod 60 mounted thereto. The threaded rod extends upwardly through each ring. Spacers 63 are positioned between each ring with the threaded rod extending through the cylindrical spacers. The spacers position the rings apart allowing fluid flow in between each ring. Likewise, central plate 56 includes a plurality of apertures 57 allowing the fluid flow to pass therethrough. Spindle 29 is keyed to plate 56 causing the plate with rings to rotate whenever the spindle rotates. Each ring has a horizontally extending top and bottom surface to allow the rotor to ride on the bottom stator 36 (Fig. 2) and adjacent the top stator 27. For example, ring 53 includes parallel horizontally extending surfaces 64 and 65 with surface 65 riding upon a similar surface of the bottom stator with surface 64 being positioned against a similar parallel surface of the top stator. The rings of the rotor and stators have a plurality of ridges or projections spaced apart by recesses formed thereon. For example, ring 50 (Fig. 6) has a plurality of projections 66 spaced apart by recesses 67. Recesses 67 open outwardly and downwardly toward complementary shaped recesses on the bottom stator. Likewise, the inwardly facing surface 42 (Fig. 7) of rotor 39 includes a plurality of projections spaced apart by recesses. Thus, ring 50 has spaced apart projections 68 between which are located recesses 69 that open inwardly and upwardly towards complementary shaped recesses of the top stator. As a result of the differences in diameter of rings 50-56, the number of projections and recesses are different for each ring. That is, ring 50 includes more projections and recesses than the adjacent ring 51, in turn, having more projections and recesses than the adjacent ring 52 and so on until the smaller diameter ring 56. The top stator 31 (Fig. 11) is fixedly mounted to plate 38 and is composed of seven rings 70-76 of decreasing diameter. The rings are not spaced apart as is the case of the rings of the rotor and thus fluid flow cannot occur between the stator rings. Spindle 29 extends rotatably through plate 38 and stator 31 being keyed to the rotor and an impeller located at the bottom of the chamber. Each ring 70-76 has a horizontally extending surface positioned adjacent the horizontally extending surface of the adjacent rotor ring allowing relative motion between the rotor and the top stator. For example, ring 70 includes a downwardly facing horizontal surface 77 (Fig. 11) that is positioned atop the upwardly facing horizontal surface 78 of rotor ring 50 (Fig. 10). In this manner, the rotor is allowed to ride smoothly relative to the top stator. Each ring 70-77 includes a plurality of projections separated apart by recesses that are in decreasing number from ring to ring due to the decreasing diameter of each ring. The ring projections are shaped similar to the rings and projections provided on the rotor in the bottom stator. As an example, ring 70 (Fig. 3) includes projections 80 spaced apart by downwardly and outwardly opening recesses 81 with the horizontal downwardly facing surface 77 (Fig. 11) of ring 70 being provided on projections 80. The bottom stator 36 (Fig. 12) includes seven rings 90-96 secured together. Rings 90-96 are not spaced apart as is the case of the rotor rings and thus fluid flow does not occur through rings 90-96. Each ring has an upwardly facing and horizontally extending surface upon which the rotor rides. For example, ring 90 has an upwardly facing horizontal surface 97 against which the downwardly facing surface 98 (Fig. 10) of ring 50 rides upon. Rings 90-96 are of decreasing diameter and are complementary to the decreasing diameter of the rotor rings. The rings of stator 36 have a plurality of ridges or projections spaced apart by recesses formed thereon. For example, top ring 90 (Fig. 9) has a plurality of projections 120 spaced apart by upwardly and inwardly opening recesses 121. A single recess is positioned between a pair of projections in each ring for each stator and the rotor. The number of projections and recesses decrease in number for each ring from ring 90 to ring 96. The bottom wall 99 of stator 36 is solid and is not provided with apertures and thus fluid flow is prevented from flowing through wall 99. A disc shaped impeller plate 100 rotatably rides atop wall 99 and is fixedly fastened to the bottom end 40 of spindle 29. Impeller plate 100 includes a plurality of radially and upwardly extending ribs 101 (Fig. 9) causing fluid circulation as the spindle rotates. Spindle 29 extends freely through the top stator 31 and is keyed to the rotor and also keyed to the impeller. Thus, rotation of spindle 29 causes the rotor and impeller to rotate as a unit within the bottom stator with the rotor also rotating while the top stator is positioned within the rotor. Both the top stator and rotor include a central wall having apertures extending therethrough allowing fluid flow to occur centrally through the top stator, rotor and then to the impeller plate. That is, stator 31 includes a central horizontally extending wall 105 (Fig. 5) having a plurality of apertures 106 extending therethrough. Likewise, spindle 29 extends through wall 105. Rotor 39 has a central wall 111 with apertures 112 extending therethrough. Fluid flow therefore occurs from the reservoir through apertures 106 and 112 to the bottom of the chamber. Inlet conduits 24 and 25 (Fig. 1) empty into a top chamber 110 positioned atop plate 38, in turn, having a centrally located aperture allowing the fluid within chamber 110 to empty into the hollow interior of the top stator 31 and pass through apertures 106 to the hollow interior of rotor 39. The downward flow continues through apertures 112 allowing the downwardly flowing media from upper chamber 110 to flow into the hollow interior of the bottom stator 36 (Fig. 12) as the media flows in the direction of arrow 112. Impacting the rotating impeller 100, the media is cause to reverse in direction and flow upwardly and outwardly in the direction of arrow 113 between the rings of stator 36 and the rings of rotor 39. Rotation of rotor 39 causes the downwardly and outwardly extending rotor recesses 67 (Fig. 6) to periodically align with the inwardly and upwardly projecting recesses 121 (Fig. 9) of the bottom stator 36 with the fluid flow then occurring in the direction of arrow 113 through matching recesses of the rotor and the bottom stator. Simultaneously, the fluid flows between the rotor rings in the direction of arrow 115 (Fig. 10) and passing upwardly through matching recesses 69 (Fig. 7) and 81 (Fig. 3) of the rotor 39 and the top stator 31. Eventually, the fluid escapes outwardly over the top of surface 97 (Fig. 12) of bottom stator 36 into the bottom chamber 116 (Fig. 2) formed between the bottom stator and the sidewall 33 of the chamber housing. The bottom wall or plate 35 (Fig. 9) includes a plurality of openings 118 through which the emulsified media may exit into a hollow conically shaped chamber 117 (Fig. 1), in turn, having a bottom opening leading to outlet conduit 26 allowing the emulsified media to flow from the emulsifier. The axis of rotation of the rotor is coincident with axis 19. The inwardly facing surface of the bottom stator 36 as well as the outwardly facing surface of rotor 39 are arranged at an oblique angle relative to the axis of rotation. Likewise, the outwardly facing surface of the top stator and the inwardly facing surface of the rotor are arranged at an oblique angle relative to the axis of rotation causing the media to flow along an oblique path relative to the axis of rotation as the media flows upwardly from the impeller. For example, rings 50-56 (Fig. 10) have outwardly facing surfaces generally defining an oblique flow surface 122 and an inwardly facing surfaces defining an oblique flow surface 123 with both surfaces 122 and 123 arranged at an oblique angle relative to axis 19. Surfaces 122 and 123 are imaginary in that they are interrupted by the spacing existing between adjacent rings. Nevertheless, the fluid flow is generally caused to move upwardly in the direction of arrow 113 (Fig. 12) along an outward path defined by imaginary surfaces 122 and 123. Similar surfaces 124 (Fig. 12) and 125 (Fig. 3) are defined respectively by the inwardly facing projections on the bottom stator and the outwardly facing projections on the top stator. Each of the rings of the top stator 31 are arranged adjacent a corresponding rotor ring with each of the top stator rings having a different number of recesses than the corresponding adjacent rotor ring since the top stator rings are of smaller diameter than the rotor rings. Likewise, the rings of the bottom stator are arranged adjacent corresponding rotor rings with each of the rings of the bottom stator having a different number of recesses than the corresponding adjacent rotor ring since rotor rings are of smaller diameter than the bottom stator rings. As the media flows upwardly in the direction of arrow 113, the media escapes circumferentially out of the bottom stator. As the driver rotates rotor 39, the rotor ridges 66 and 68 are moved past the respectively, stator recesses 121 and 81 momentarily trapping the flow media within the recesses 121 and 81. Likewise, the flow media is momentarily trapped within the rotor recesses 67 and 69 as recesses 67 and 69 are moved past stator projections 120 and 80. With the rotor rotating in excess of 3,000 rpm, the media momentarily trapped with the recesses 121, 81, 67 and 69 is caused to pulsate or vibrate at ultrasound frequencies further intensifying the particle breakdown and emulsification process. The particles carried by the fluid are broken down into smaller and smaller pieces as the particles and fluid move away from the impeller 100 in the direction of arrow 113 (Fig. 12) arranged obliquely relative to axis 19 thereby combining the advantages of axial emulsifiers and radial emulsifiers with the liquid media being emulsified in the axial, radial and circumferential direction. Many variations are contemplated and included in the present invention. In the embodiment depicted in the drawings, the rotor and two stators each have an odd number of rings, namely seven. It has been found that superior results are obtained by utilizing an odd number of rings. Further, best results have been obtained when rotating the rotor in excess of 3,000 revolutions per minute up to a maximum of 20,000 revolutions per minute. As the rotor is rotated in the range of 3,000 revolutions per minute to 20,000 revolutions per minute, media is temporarily trapped within the recesses of the stators and rotor causing the media to vibrate within the recesses at ultrasonic frequency, that is above 20,000 cycles per second, thereby further breaking down the cell structure of the particles suspended in the liquid achieving the final emulsification. Further, best results have been obtained by arranging surfaces 122-125 at a 45-degree angle relative to axis 19. While the invention has been illustrated and described in detail in the drawings and foregoing description, the same is to be considered as illustrative and not restrictive in character, it being understood that only the preferred road bicycle embodiment has been shown and described and that all changes and modifications that come within the spirit of the invention are desired to be protected, such as changes and modifications needed for use on all terrain bicycles.

Claims

CLAIMS What is claimed is: 1. An emulsifier of material comprising: a chamber to receive material to be emulsified; an inlet conduit leading into said chamber to direct the material into the chamber; an outlet conduit leading from said chamber after the material is emulsified; a first stator positioned within said chamber and having a stator first flow surface, said stator first flow surface including a plurality of first rings of different diameters arranged in conical fashion about a longitudinal axis with each of said rings including a plurality of spaced apart first ridges and first recesses interspersed between said first ridges; a second stator positioned within said chamber and spaced apart from said first stator and having a stator second flow surface, said second stator including a plurality of second rings of different diameters arranged in conical fashion about said longitudinal axis with each of said rings including a plurality of spaced apart second ridges and second recesses interspersed between said second ridges; a rotor positioned within said chamber between said first stator and said second stator and having an axis of rotation coincident with said longitudinal axis, said rotor including a rotor first flow surface positioned adjacent said stator first flow surface, said rotor further having a rotor second flow surface positioned adjacent said stator second flow surface, said rotor first flow surface and said rotor second flow surface each including a plurality of rotor rings of different diameters arranged in conical fashion with each of said rings including a plurality of spaced apart rotor ridges and rotor recesses interspersed between said rotor ridges, said rotor rings forming inwardly facing rings and outwardly facing rings; and, a driver coupled to said rotor to rotate said rotor while said first stator and said second stator remain stationary while said rotor ridges move past said first recesses and said second recesses pulsating said material as said material flows through said rotor recesses and said first recesses and said second recesses emulsifying said material.

2. The emulsifier of claim 1 wherein: said stator first surface flow faces outwardly and said stator second flow surface faces inwardly, said rotor first surface faces inwardly toward said stator first flow surface, said rotor second flow surface faces outwardly toward said stator second flow surface.

3. The emulsifier of claim 1 wherein: said stator first flow surface, said stator second flow surface, said rotor first flow surface and said rotor second surface each extend obliquely relative to said axis of rotation causing said material to flow along an oblique path relative to said axis of rotation as said material is forced along said axis of rotation.

4. The emulsifier of claim 3 wherein: each of said first rings of said first stator are arranged adjacent a corresponding ring of said inwardly facing rings of said rotor with each of said first rings having a different number of recesses than said corresponding ring of said inwardly facing rings; and, each of said second rings of said second stator are arranged adjacent a corresponding ring of said outwardly facing rings of said rotor with each of said second rings having a different number of recesses than said corresponding ring of said outwardly facing rings.

5. The emulsifier of claim 4 wherein: said first stator includes a first center portion within said first rings through which said material from said inlet conduit flows to said rotor; said rotor includes a rotor center portion within said rotor rings through which said material from said first stator flows to said second stator; and, said second stator includes a second center portion within said second rings.

6. The emulsifier of claim 5 and further comprising: an impeller adjacent said second center portion to reverse the flow of said material from said second center portion and then through said rotor recesses and said first recesses and said second recesses emulsifying said material and escaping circumferentially from said first stator, said rotor and said second stator.

7. The emulsifier of claim 6 wherein: said plurality of first rings, said plurality of second rings, said plurality of rotor rings, each have an odd number of rings.

8. The emulsifier of claim 6 wherein: said rotor and said impeller rotate as a unit.

9. The emulsifier of claim 1 wherein: said rotor is rotated in excess of 3,000 revolutions per minute.

10. The emulsifier of claim 1 wherein: said rotor includes a plurality of openings between said rotor rings allowing material to escape from within said rotor outwardly thereof to said outlet conduit

11. The emulsifier of claim 3 wherein: said oblique path is arranged at a forty-five degree angle relative to said axis of rotation.

12. An emulsifier of material comprising: a housing having a chamber with an inlet to receive material to be emulsified and an outlet to direct the material once emulsified; a rotor rotatably positioned in said housing and having an axis of rotation, said rotor having a plurality of rotor projections and recesses arranged obliquely relative to said axis of rotation, said rotor includes a central rotor passage; a first stator positioned in said housing and having a plurality of first stator projections and recesses facing said rotor projections and recesses and arranged obliquely relative to said axis of rotation, said stator having a central stator passage; and, a driver connected to said rotor to rotate said rotor and force said material through said central rotor passage and said central stator passage and then backwards between said rotor projections and recesses and said stator projections and recesses along an oblique path emulsifying said material and forcing said material out said outlet.

13. The emulsifier of claim 12 wherein: said driver rotates said driver in excess of 3,000 revolutions per minute.

14. The emulsifier of claim 12 and further comprising: an impeller located within said housing and rotatably driven with said rotor to force said material backwards.

15. The emulsifier of claim 14 and further comprising: a second stator positioned in said housing and having a plurality of second stator projections and recesses facing said rotor and arranged obliquely relative to said axis of rotation, said rotor is located between said first stator and said second stator.

16. The emulsifier of claim 15 wherein: said rotor includes a plurality of rings joined together but having opening extending therebetween allowing material to flow therethrough between said rotor and said first stator and said second stator escaping to said outlet.

17. The emulsifier of claim 16 wherein: said rotor has a rotor convex shape and a rotor concave shape, said first stator has a first convex shape facing said rotor concave shape, said second stator has a second concave shape facing said rotor convex shape, said rotor convex shape and said rotor concave shape include a plurality of ridges and recesses movable past said second concave shape and said first convex shape emulsifying said material.

18. A method of emulsifying material comprising: providing a rotor with an axis of rotation along with a first stator and a second stator that have respectively a rotor grinding area, a first stator grinding area and a second stator grinding area all of which extend along an oblique path relative to the axis of rotation; positioning said rotor between said first stator and said second stator; rotating said rotor; directing material to be emulsified through said first stator, then through said rotor and then to said second stator along said axis of rotation; re-directing said material backwards along said oblique path between said second stator grinding area and rotor grinding area and between said rotor grinding area and said first stator grinding area.