Abstract: A stator for a helical gear device is formed from multiple rigid disks and support rings bonded to the disks. Each disk forms part of a profile consisting of radially equally spaced or opened lobes which interact with the convex portions of rotor lobes. The disks are arranged into a desired helical configuration and bonded to one another to form a disk stack defining a helically convoluted elongated chamber therein. The support rings are fixed concentrically against respective end disks of the disk stack. The rings are sized with an inside diameter substantially equal to the major diameter of the central aperture defined by the radially extending lobes of the rigid disks. As a rotor rotates and nutates inside the helically convoluted elongated chamber of the stator, it is supported at both ends of the disk stack by the support rings touching the tips of the rotor lobes. Thus the full force of the rotor's operational inertia is not borne by the disks alone, thereby increasing their life.

Abstract: This disclosure concerns an advanced nutating positive displacement device having a high power to mass ratio and low production cost. This device in one example forms an exemplary pump as will be discussed in detail. The examples disclosed herein are of the rotary positive displacement type, but in a class by themselves. The devices are formed by a nutating rotor having a face comprising lobes and valleys, and a fixed stator also having a face with lobes and valleys. The face of the rotor opposes and cooperates with the face of the stator. The opposing faces define chambers that change volume with rotation of the rotor.

Abstract: The present invention recites a method of fabricating a stator for a downhole motor, the method comprising the steps of providing a stator tube having an interior surface and applying a bonding agent to the interior surface of the stator tube. Additionally, a mandrel is positioned within the stator tube, the mandrel having an outer geometry that is complimentary to a desired inner geometry for the stator. Furthermore, a reinforcing material is introduced into the stator tube to fill space between the mandrel and the interior surface of the stator tube and subsequently solidified to bond the reinforcing material to the interior surface of the stator tube, The mandrel is then removed from the bonded stator tube and reinforcing material such that a stator is fabricated.

Abstract: A swash pump for compressible fluids uses sealing contacts made between the nutatable swash plate and the fixed cone plates to center and locate the inner swash sphere which slides against two resiliently mounted ring seals only, minimizing pump friction. A slanted end of a common drive shaft supporting and turned by the rotor of an integrated, variable speed motor causes nutation of the sphere. All bearings, especially axially slidable roller bearings inside the sphere, may settle in position with respect to the common shaft for least frictional loss. This pump is also adapted for pumping explosive gases.

Abstract: A positive-displacement rotary machine comprises a housing a rotor installed in the housing with the a capability of rotation, a separator installed in the housing, having a guide part with a hole for the rotor; a piston installed in the a groove of the rotor with the a capability of making rotary oscillations relative to the rotor around an axis that intersects the an axis of rotation of the rotor, having at least one slot into which the guide part of the separator enters, a sphere-like working cavity formed around the rotor, which the guide part of the separator, during interaction of the hole with the rotor, divides into chamber-forming cavities of variable cross section, each of which is divided by the piston into working chambers. There is a passage for the a working fluid that permits the working thud to bypass the minimal cross section of the chamber-forming cavity; and input and output ports of the working fluid.

Abstract: A delivery unit is already known, which comprises a drive shaft and a rotor driven by the drive shaft. The rotor is rotatably arranged in a stator housing, wherein the rotor has a toothing on the end face of said rotor that is remote from the drive shaft, wherein said toothing meshes with a toothing constructed on the stator housing. The drive shaft comprises an oblique sliding plane interacting with the rotor and which is constructed on a shoulder of the drive shaft and allows the rotor to gyrate with the rotor axis thereof about the drive axis of the drive shaft. Work spaces are formed between the toothing of the rotor and the toothing of the stator housing, wherein said work spaces can be filled via an inlet and emptied via an outlet. In one embodiment the fluid is admitted axially and discharged radially, and in the other embodiment the fluid is admitted and discharged axially. For that purpose, control valves in the form of non-return valves are required.

Abstract: A hinged joint is formed on a volumetric rotary machine with a spherical working cavity formed between a spherical rotor part and the spherical surface of the body, between a piston, which is mounted in such a way as to enable rotary oscillations relative to the rotor in the plane passing along the axis of rotation of the rotor, and a rotor, which is mounted in such a way as to enable rotation about the spherical rotor part. This solution has made it possible to increase the reliability, service life and thermal stability of machines of this type. In addition, helical channels for communication between symmetrical working chambers and channels within the rotor for connecting the working chambers to the working-medium inlet and outlet openings are formed inside the spherical rotor part. This solution has made it possible to increase the specific power of the machine.

Abstract: A Moineau pump or Moineau compressor includes a conically designed inner (4) and a conically designed outer (8) element, whose longitudinal axes (X1, X2) run at an angle to one another and intersect at a point. The pump or compressor has at least two sections (2a, 2b, 2c, 2d) in the axial direction. A part (4b) of the inner element (4) located in a second section (2b) is arranged rotated with respect to a part (4a) of the inner element located in a first section (2a) about the longitudinal axis (X1) of the inner element (4). A part (8b) of the outer element (8) located in the second section (2b) is arranged rotated with respect to an other part (8a) of the outer element (8) located in the first section (2a) about the longitudinal axis (X2) of the outer element (8).

Abstract: The invention concerns a wobble pump base module and a wobble pump system. The invention-based wobble pump base module (40) comprises a wobble pump drive system (43), a wobble device (41), a receptacle (42) for a pump module (1) and a pretensioning device (56), wherein the pretensioning device (56) flexibly pretensions the pump module (1) housed in the receptacle (42) against the wobble device (41).

Abstract: The invention concerns a pump module, a pump base module and a pump system which comprises a pump module and a pump base module. The invention-base pump module (1) comprises a linear pump channel (5) which is curved at least in sections, a pump channel inlet (6) and a pump channel outlet (7), wherein the pump channel inlet (6) and the pump channel outlet (7) are connected with the pump channel (5) for supplying a fluid into the pump channel (5) and discharging a fluid from the pump channel (5), so that through a periodically rotating deformation of the membrane (4) a fluid can be pumped through the pump channel (5) from the pump channel inlet (6) to the pump channel outlet (7), wherein in the section between the pump channel inlet (6) and the pump channel outlet (7) the pump channel (5) is designed in a way that differs from a genuine circular design.

Abstract: A swash-plate machine for pumping fluids uses dual swash plates in complementary or mirror-image orientation. The vibration that is generated as a reaction to forced nutatory motion imposed on a single swash plate is thereby largely cancelled. Rotated orientation of the divider plate position in one chamber with respect to the other (preferably 90 degrees difference) provides four outputs per revolution instead of the two available from both sides of a single swash plate. Improved bearings for the part-spherical swash plate base permits only oscillatory movement for that part and facilitate better sealing.

Abstract: In a nutating engine (or more generally a rotary displacement device) the cycling of combustion occurs between inner and outer spherical surfaces. The combustion chambers are additionally defined only by the surfaces of teeth of specially designed gears. These gears are the Rotator (2), two consecutive of some number of free-planetary gears (3A-E), and the lobed Nutating Member (1). The latter is enjoined to execute precessional rotation relative to the former and maybe both affixed with counterweights (11A,B; 12A,B) and subjected to reverse-English transforming the precessional rotation to a stress-free mode in both the Newtonian and Eulerian sense. The insertion of optional butterfly-shaped plugs (4A-E, 5A-E, 8A-E) boosts the compression ratio. Truly, no past engine possesses the characteristics of the instant invention.

Abstract: A rotary engine has a spherical enclosure serving as a combustion chamber, a first baffle inside the combustion chamber slideable along a groove formed in the spherical enclosure, and a second baffle disposed in the combustion chamber which is in sealing engagement with the internal spherical surface of the combustion chamber. The second baffle is carried by a rotatable shaft, the shaft extending into the spherical combustion chamber. The first baffle rests against the second baffle, and separates the interior of the combustion chamber into a first part and a second part. A first valve in a first opening is disposed to communicate with the first part of the combustion chamber, and a second valve in a second opening is disposed to communicate with the second part of the combustion chamber.

Abstract: An airtight rotating driving device with eccentricity, especially for volumetric pump, the device including a bent shaft (1) presenting an input axis (5) and an output axis (10) parallel and off-centered in such a way as to carry out an orbital circular movement, and an airtight and non-rotatable sleeve (14) surrounding the shaft and comprising two metallic bellows (19, 20) linked by a guiding ring (21) mounted longitudinally in a sliding relation on the sloped intermediate section (17) of the shaft. The device converts a rotating movement into an orbital circular movement with an absolute airtightness.

Abstract: In a nutating spherical engine, improvements for increasing the seal between the rotor and the engine head comprise the provisions of a pair of minor cusps disposed on the rotor which as seen in plan view are diametrically opposed and at right angles to the major cusps of the rotor. The engine may include a rotor guide including a cam and cam follower which cause the rotor to undergo the same nutational rotation as that caused by the interaction of the rotor and cylinder head. The rotor and cylinder head may be coupled by a ball and socket, and the ball may contain a simple coupling for the drive shaft of the engine. The cam, cam follower and coupling of the engine are easily located as they are not in direct communication with the working chambers of the engine.

Abstract: An attitude control device has a plurality of harmonic drive mechanisms of the hollow type, preferably first and second harmonic drive mechanisms. First and second rotational members are connected to the outputs of the first and second harmonic drive mechanisms. These rotational members have eccentric hollow portions which rotate eccentrically around the rotational axes of the harmonic drive mechanisms. A member to be driven is placed to extend through the eccentric hollow portions such that it is supportedly contacted with the inner surfaces of the eccentric hollow portions. In operation, the eccentric hollow portions are rotated relative to each other, whereby the member to be driven is controllably oriented to a desired direction.The attitude control device can be employed as a drilling-direction control device wherein a rotational drill shaft is supported by inner surfaces of eccentric hollow portions of first and second rotational members.

Abstract: An eccentric-motion motor for driving a utilization mechanism includes a stator defining a closed surface pathway, an armature composed of a permanent magnet rollably disposed on the closed surface pathway, a series of electromagnetic elements disposed in the stator along the closed surface pathway, circuitry for successively energizing the electromagnetic elements to cause them to attract and/or repel the armature so that it rolls along the closed surface pathway, and a coupler mechanism for coupling the armature to the utilization mechanism so that as the armature is caused to roll, the utilization mechanism is powered by the operation of the motor.

Abstract: A universally-movable machine part includes a disc member having a disc shaft and a recessed slot defining a bearing surface conforming to a smooth cylindrically-curved plane. At least one planar vane member defines a lower bearing surface conforming to the smooth cylindrically-curved plane of the disc slot so as to be pivotally slidably mated therewith. A rotor member having a rotor shaft defines a groove which establishes a plane passing through a geometric center point of the device and in which an upper portion of the vane member is accepted so as to be pivotal within the established plane. The rotor member also defines a lower surface upwardly and outwardly divergent relative to the geometric center point of the device to permit the rotor member to be pivotally movable about an axis mutually perpendicular with the axis defined by the disc shaft and the axis about which the vane member pivots so that the rotor member will also be pivotally movable together with the vane member.

Abstract: A nutating disc type fluid device in which in one embodiment nutating elements are mounting within a single chamber of a housing on a common shaft in a manner which is dynamically and pressure balanced. A divider plate is fitted through slots formed on one side of each nutating element so that relative rotation between the shaft and housing creates successive expanding and contracting volumes to draw fluid into the chamber through inlet ports and to exhaust fluid through outlet ports. The ports are sized and shaped to provide maximum and constant fluid flow. In another embodiment the nutating disc element is formed of an elastomeric material which permits unimpeded passage of solid objects that may be entrained in the fluid.

Abstract: A rotor having the configuration of a spherical wedge is mounted in a hemispherically shaped chamber for rotary, nutating motion about the center of curvature of the chamber. The rotor divides the chamber into two separate sections, and revolves about a stub shaft carried on the inner end of a crankshaft, which projects into the chamber at an angle of approximately 18.degree. to the stub shaft. An apex formed by a pair of intersecting, plane surfaces on the rotor, is maintained in sliding engagement with the flat, base end of the hemispherical chamber. During each half revolution the rotor pivots about its apex to swing its intersecting, plane surfaces alternately into contiguous relation to the flat end of the chamber so that the two separate sections thereof are alternately compressed and expanded. Necessary ports are provided for supplying fluid to, and exhausting fluid from, said chamber sections.