Abstract: A device for pumping fluid such as paints, sealants, caulks, and polymers made of a rotor assembly and a pump body. The rotor assembly contains at least one laminar flow element arranged in such a manner as to conduct the fluid from inlet to outlet as the rotor spins. The rotor may vary its distance from the pump body. This arrangement provides a rotor with exceptional capacity to pump without damage to the fluid media and to measure the fluid rate at low or high rotational speed with viscosity that can vary. The device also may provide a spray nozzle or nozzles that produce a multiplicity of spray patterns.

Abstract: A fluidic handling unit includes a baseplate, a fluidic inlet block, a fluidic outlet block, a pump in fluidic communication with the fluidic inlet block and the fluidic outlet block, a carrier control board in electrical communication with the pump, and a flow cell carrier comprising a microfluidic flow cell receiving area, wherein the flow cell carrier is configured to receive and retain the fluidic handling unit. A bottom surface of the fluidic handling unit is configured to complementary mate with a top surface of the flow cell carrier, or wherein a bottom surface of the flow cell carrier is configured to complementarily mate with a top surface of the fluidic handling unit.

Abstract: A charge gas compression train for ethylene including a first compressor including a first group of compression stages, a second group of compression stages, and a third group of compression stages. The first group of compression stages includes an outlet configured to be connected to a first intercooler inlet. The second group of compression stages includes a second compressor inlet configured to be connected to a first intercooler outlet, and a second compressor outlet configured to be connected to a second intercooler inlet. The third group of compression stages includes a third compressor inlet configured to be connected to a second intercooler outlet. The first, the second, and the third group of compression stages are integrated in a first common casing and operate at the same rotation speed. The first compressor includes a plurality of unshrouded and shrouded impellers, where an unshrouded impeller is positioned upstream to a shrouded impeller.

Abstract: A uniaxial eccentric screw pump enabling a stator to be easily separated into an outer cylinder and a lining member, and being capable of solving problems such as a positional shift and deformation of the lining member, and an occurrence of uneven wear and an unstable discharge amount associated with the positional shift and deformation. The stator includes a liner portion having a cylindrical shape and being integrally formed so as to have an inner peripheral surface of an internal thread type and an outer cylinder portion. The liner portion includes, at both end portions thereof, flange portions protruding radially outward, and an outer cylinder mounting portion is provided between the flange portions. The outer cylinder portion is mounted in a non-bonded state on the outer cylinder mounting portion, and both end portions of the outer cylinder portion abut on the flange portions, respectively.

Abstract: A pump for pumping a multiphase fluid includes a housing and a rotor with an outer surface. A plurality of inducer vanes are attached to the rotor hub, each having a leading edge and a trailing edge where the leading edge of one inducer vane overlaps the trailing edge of an adjacent inducer vane by a first overlap angle. A plurality of impeller vanes are also attached to the hub. The impeller vanes each have a leading edge and a trailing edge where the leading edge of one impeller vane overlaps the trailing edge of an adjacent impeller vane by a second overlap angle larger than the first overlap angle. The pump includes a rotor flow channel extending between the hub outer surface and the housing inner surface. The rotor flow channel has an inlet area and an outlet area, whereby the outlet area is smaller than the inlet area.

Abstract: A high speed swirling type centrifugal revolving pipeline device, which utilizes a spiral pipeline curling and revolving with different pipe radius and with different radius of curvature, comprising an inlet pipeline, at least two transport pipelines, and at least a pressuring and accelerating pipeline, to serve as transport pipeline for fluid to continue swirling up. At least a driving device is used to drive spiral pipeline. Spiral pipeline design and centrifugal force produced by high speed rotation are used to drive fluid to the highest water level swiftly and stably, to proceed with subsequent conversion of regenerated energy into electrical power.

Abstract: A spiral pumping stage includes both centripetal and centrifugal pumping channels, so that the gas is pumped from the periphery to the center of the pumping stage throughout a first group of pumping channels and it is pumped from the center to the periphery of the pumping stage throughout a second group of pumping channels. Thanks to this inventive arrangement, both the gas coming from a previous pumping stage or a main pump inlet arranged upstream the pumping stage according to the invention and the gas coming from the additional side inlet can be effectively pumped by the pumping stage according to the invention.

Abstract: A surgical instrument includes a hub, a rotating member, an impeller, and an impeller enclosure. The hub has a proximal portion and a distal portion and defines a lumen therebetween. The distal portion of the hub includes a sleeve portion configured to rotatably support the rotating member. The rotating member extends through the hub and has a proximal end and a distal end. The proximal end of the rotating member is configured to couple to an external driving mechanism. The impeller is coupled to the distal end of the rotating member and is configured to accelerate fluid flowing into or out of the lumen. The impeller enclosure is coupled to the distal portion of the hub and defines an impeller volume around the impeller. One or more openings are defined around the sleeve portion of the hub such that the lumen is in fluid communication with the impeller volume.

Abstract: An external device for cleaning a filtration material and adapted for application to a filtration device, in which the filtration material can be automatically cleaned easily and at low cost without requiring replacement of an existing filtration device with a newly purchased device. An external device for cleaning a filtration material is applied to a filtration device for filtering a supplied unfiltered liquid by layers of a filtration material to remove muddiness in the liquid and discharging the cleaned liquid to the outside.

Abstract: A turbocharger includes a compressor housing, a bearing housing and a back plate. A discharge scroll chamber has such a shape that a cross-sectional area thereof gradually increases toward a discharge port in a circumferential direction. The compressor housing includes a scroll piece assembled to a shroud piece. The scroll piece includes a suction port-forming portion, a suction-side concave surface and a scroll outer periphery. The shroud piece includes a shroud fit-in portion, an inner peripheral concave surface, a shroud surface and a diffuser surface. The back plate includes a facing surface, an outer peripheral annular fit-in portion and an outer peripheral concave surface. The outer peripheral concave surface has such a shape that a cross sectional shape thereof formed by a plane including a rotation axis of an impeller gradually changes in the circumferential direction.

Abstract: An air induction system consisting of a cylindrical main flow tube, a helical vane disposed within the main flow tube, and, preferably, a noise absorbing perforated tube disposed within the main flow tube in concentric relation to the helical vane. The twist direction of the helical vane provides air flow rotation in the same direction of rotation as the turbine wheel. The helical vane causes noise reflection and enhancement of noise attenuation by the perorated tube and its adjoining one or more acoustic cavities.

Abstract: An inducer for vertical flow, cryogenic liquid centrifugal pumps comprising a stationary outer housing portion having an inlet and an outlet, the inlet located at a lower end and the outlet located at an upper end, the housing further having an inner wall portion with one or more spiral grooves formed in the inner wall portion, the grooves defining a hollow opening in the inner wall portion that spiral in a first direction, and an inner rotating impeller mounted on a rotating center shaft, the impeller having at least one curved blade which defines a curved, helicoid plane surface in which the slope of the plane increases as the distance from the center axis increases, the impeller rotating in a second direction which is in counter rotation to the first direction.

Abstract: An axial flow blood pump includes a housing and a hollow rotor in the housing. The housing has an entrance end, an exit end, and a pump axis. The rotor has at least one spiral conveying rotor blade arranged on an inner surface of the rotor. The spiral conveying rotor blade extends toward a center of the rotor while leaving the center of the rotor open to define a central axial passage for a blood flow. The spiral conveying rotor blade has a pitch and a height that vary along the pump axis.

Abstract: A high speed swirling type centrifugal revolving pipeline device, which utilizes a spiral pipeline curling and revolving with different pipe radius and with different radius of curvature, comprising an inlet pipeline, at least two transport pipelines, and at least a pressuring and accelerating pipeline, to serve as transport pipeline for fluid to continue swirling up. At least a driving device is used to drive spiral pipeline. Spiral pipeline design and centrifugal force produced by high speed rotation are used to drive fluid to the highest water level swiftly and stably, to proceed with subsequent conversion of regenerated energy into electrical power.

Abstract: A pelletizing machine for forming pellets from extruded material includes an extruder having at least one exit port and a body defining a cutting chamber through which high-temperature liquid flows, flooding the cutting chamber. The exit port of the extruder opens into the cutting chamber, which includes a cutting section defining a flow path for liquid through the cutting section. A cutter in the cutting section of the cutting chamber is mounted for rotation about an axis generally perpendicular to the first direction and disposed for cutting the extruded material exiting the exit port into the pellets. The axis of rotation of the cutter is parallel to or coincident with the flow path of the cutting section. A method for forming pellets of thermoplastic material with a foaming agent is also disclosed.

Abstract: A submersible centrifugal pump is disclosed. The submersible centrifugal pump includes a pump housing having a pump intake disposed generally opposite a pump outlet. A shaft extends at least partially through the pump housing and is adapted to be driven by a submersible motor. A centrifugal impeller is attached to the shaft and has an opening for fluid intake. A diffuser is disposed corresponding to the centrifugal impellers to form a pump stage. And an auger is coupled to the shaft.

Abstract: In one aspect of the present invention, a pump includes a cam having a cam shaft, wherein the cam shaft has an axis, an exterior surface and M fins spaced-apart formed on the exterior surface along the axis; and at least one fluidic flow channel having an inlet and an outlet, disposed on a substrate, wherein the at least one fluidic flow channel helically surrounds the cam shaft such that when the cam shaft driven by the cam rotates, the M fins of the cam shaft compresses the at least one fluidic flow channels to produce a wave of compression that actuates a peristaltic flow of fluid therein so as to direct a desired amount of the fluid toward one of the inlet and the outlet.

Abstract: Disclosed is an assembled helical turbine system, which can strengthen weakenings of a housing assembly, and simultaneously can be easily assembled/disassembled. The assembled helical turbine system comprises the housing assembly including a plurality of bearing spiders for rotatably supporting a rotating shaft of a helical turbine, and a plurality of side posts for connecting and fixing the respective bearing spiders to each other, the side posts being fixed in such a manner as to radially protrude by a predetermined length from peripheral surfaces of the bearing spiders; filling members for filling and reinforcing spaces between the peripheral surfaces of the bearing spiders and outlines of protruding portions of the side posts; and a housing supporter for supporting the housing assembly in such a manner that the housing assembly can be inserted into and withdrawn from the housing supporter, the housing supporter having catch grooves that are recessed in a shape corresponding to stoppers.

Abstract: Disclosed is an assembled helical turbine system, which can prevent its assembly/disassembly from being hindered by a rotational force generated during the assembly/disassembly process. The assembled helical turbine system includes a helical turbine formed with a plurality of blades in such a manner as to continuously generate a rotational force under unidirectional or multidirectional fluid flow; a housing assembly for rotatably supporting the helical turbine while surrounding the helical turbine; stoppers formed on a peripheral surface of the housing assembly in such a manner as to protrude to a predetermined height from the peripheral surface; and a housing supporter for supporting the housing assembly in such a manner that the housing assembly can be inserted into and withdrawn from the housing supporter, the housing supporter having catch grooves that are recessed in a shape corresponding to the stoppers so as to fix the stoppers.

Abstract: A hybrid ram air turbine includes a generally conical-shaped shaft which mounts a number of vanes wrapped in a substantially helical orientation along the shaft with a portion of each vane being formed in the general shape of a reaction turbine blade and another portion in the general shape of an impulse turbine blade. A number of fixed inlet guide vanes having a convergent wedge shape direct a flow of air onto the blades of the turbine which is mounted within the interior of a pod.

Abstract: An axial tip turbine driven pump in which a first fluid pumped by an inducer is driven by a second fluid that reacts with a turbine blade extending from a shroud on the inducer. The inducer includes a set of screw thread blades and a second set of partial blades that are covered by a shroud in the aft section of the inducer. A row of turbine blades extends from the shroud and into a manifold that forms the outer casing for the pump. The fluid flow through the manifold reacts with the turbine blades and drives the inducer to pump the fluid from the inlet and through guide vanes downstream from the inducer. The fluid passing through the turbine blades is collected in an outlet collector manifold and discharged into the fluid flowing through the guide vanes. The inducer with the turbine blades is rotatably supported within the housing formed by the guide vane support member and the manifold casing. The swirl flow direction of the turbine blades is opposite to that of the swirl flow in the inducer.

Abstract: A combined pump and valve apparatus including a cylindrical casing, a shaft arranged symmetrically in the casing, a device fixedly attached to the shaft and in close fit with the cylindrical casing, thereby defining separated chambers within the casing, a plurality of outlets/inlets arranged along the circumference of the casing, and a plurality of axially arranged inlets/outlets, each of which is fixedly connected to a respective one of the separated chambers. The axially arranged inlets/outlets are alternately in fluid connection with each of the outlets/inlets fixedly arranged along the circumference of the casing in response to rotation of the shaft and the device with respect to the casing. An impeller arrangement pumps a fluid through the combined pump and valve apparatus in response to the rotation of the shaft.

Abstract: Guide case (24) for use in conjunction with a water turbine (20), with a helical top wall (35) of the annular chamber (27) extended downstream of the inner wall (39) of the inlet port (30). The extension is wetted on its downstream side by the top water entering the inlet port, and on its upstream side by the bottom water. The extension serves to keep the top water separate from the bottom water until the velocity vectors of the two water streams have been aligned, therefore reducing turbulence at the point where the waters mix and merge, and enabling more of the energy to be extracted from the water.

Abstract: The ribbon drive generation apparatus is comprised of a ribbon-like curved shape, composed either of metal or other suitable material, attached to a containment tube, peripheral rings, shaft, or porous central tube, with the complete apparatus being contained in a tube having a constant diameter for the length of the tube. The ribbon can be peripherally mounted to the containment tube and optionally to a central porous tube. In this form the containment tube rotates and can form part of a rotor for a generator apparatus. The optional central porous tube can also be used as a bearing surface or, if attached to the inside edge of the ribbon, a power take-off shaft.

Abstract: Embodiments include apparatus and methods of fluid energy conversion. One embodiment relates to a tube for a fluid energy converter. The tube may include a generally cylindrical and hollow body having an interior surface, an exterior surface, and a longitudinal axis. Another embodiment includes a fluid energy converter having a longitudinal axis and a rotatable tube coaxial about the longitudinal axis. In some embodiments, the rotatable tube converts kinetic energy in a fluid into rotating mechanical energy, or converts rotating mechanical energy into kinetic energy in a fluid.

Abstract: A gas generator for providing continuous pressure rise combustion, including: a rotatable member including a forward end, an aft end, a circumferential wall and a longitudinal centerline axis extending therethrough; an outer circumferential wall, wherein the rotatable member is positioned therein so that the circumferential wall of the rotatable member is spaced radially inwardly from the outer circumferential wall; at least one helical channel formed by a plurality of helical sidewalls extending between the circumferential wall of the rotatable member and the outer circumferential wall, each helical channel being open at the forward end and the aft end of the rotatable member so as to provide flow communication therethrough; an air supply for providing air to each helical channel; and, a fuel supply for providing fuel to each helical channel.

Abstract: A beam jet propeller is provided, especially a beam jet propeller which increases the friction force of the fluid by spiral or linear diversion protrusions or diversion grooves on the inner wall of a tube, such that original loose fluid can be twisted together into a beam shape under pressure/rotation/extrusion and form inter-tube pressure. The beam fluid may generate a strong propelling force. Meanwhile, because less air is included in this beam fluid, the bubble friction is smaller and acoustic noise is greatly decreased. The present invention does not adopt a traditional propeller as the propelling device, therefore, the cavitation due to Bernoulli theorem is not generated, and the problem of resistance force and drag force in the fluid is also eliminated. The propelling force is thus greatly increased.

Abstract: A unit for treating air with controlled flow, comprising a free rotor (GL), single or double inlet, combined with a directional conveyor (CD), which is designed so as to be able to directionally exploit the high static efficiencies, typical of free rotors (GL), and so as to be able to obtain the maximum optimisation between the power supplied and the static pressure obtained, at the same time maintaining low sound emissions, low dynamic pressure values at the discharge and no perturbation of the flow and of the performances both at the discharge and at the suction.

Abstract: A progressing cavity pump or a motor includes, in one embodiment, an outer tube 12, an inner tube 14, and a plurality of apertures 16. A pair of annular seal glands 18 seal the stator material to the outer tube. The stator material is injection molded into the inner tube and passes through the plurality of apertures and into an annular gap between the inner tube and the outer tube. In other embodiments, the outer housing for a progressing cavity pump or motor is provided with one or more grooves, with each groove having an outer surface radius less than the outer housing surface radius. A plurality of apertures are provided in fluid communication with the grooves. According to the method of the invention, the stator material is injected into the apertures and fills a space radially outward of the apertures to bond the stator materiaal to the outer housing.

Abstract: Apparatus and method for centrifugal pump with screw pump accelerator and reverse vane impeller adapted for use in sample collection from drilling fluid containing drill cuttings.

Abstract: The invention relates to a stator for an eccentric screw pump or an eccentric worm motor having a stator, including an outer tube that is provided with a lining of rubber or a rubber-like material and has a hollow space, in the shape of a double or multiple spiral, for accommodating a rigid rotor that is also in the form of a spiral, whereby the spiral of the stator has one spiral more than does the motor. To provide a stator that also remains functional under conditions where the fixed connection between the lining and the outer tube would be destroyed, e.g. due to chemical influences or high temperatures, the invention proposes that an inner tube provided with apertures is disposed in the lining, and that spacing strips are disposed between outer tube and inner tube.

Abstract: A gas compressor based on the use of a driven rotor having a compression ramp traveling at a local supersonic inlet velocity (based on the combination of inlet gas velocity and tangential speed of the ramp) which compresses inlet gas against a stationary sidewall. In using this method to compress inlet gas, the supersonic compressor efficiently achieves high compression ratios while utilizing a compact, stabilized gasdynamic flow path. Operated at supersonic speeds, the inlet stabilizes an oblique/normal shock system in the gasdyanamic flow path formed between the rim of the rotor, the strakes, and a stationary external housing. Part load efficiency is enhanced by the use of a pre-swirl compressor, and using a bypass stream to bleed a portion of the intermediate pressure gas after passing through the pre-swirl compressor back to the inlet of the pre-swirl compressor. Inlet guide vanes to the compression ramp enhance overall efficiency.

Abstract: A device (1), for evacuating a chamber to pressures in the high vacuum range includes a suction-side vacuum pump (2) and an atmospheric-pressure-side vacuum pump (3). The suction-side vacuum pump (2) is a mechanical kinetic vacuum pump with a rotor (11) and a stator (10). The stator (10) has a rotationally-symmetrical inner surface which matches the outer rotor geometry. The rotor (11) in the mechanical kinetic vacuum pump (2) is provided with a structure (13) carrying out the gas pumping. Said gas pumping structure comprises webs (14), the angle and width of which decrease from the suction side to the pressure side. The gas throughflow is improved. The outer diameter of the rotor (11) and the inner diameter of the stator (10) of the suctnion-side pump decrease from the suction side to the pressure side.

Abstract: A screw pump for transporting a viscous product is described comprising a cylindrical housing connected to a removable bottom piece in one end and a removable cap in the opposite end, a rotor having one or more screw blades connected to a driving motor, an inlet and an outlet wherein the cylindrical housing is provided with a jacket for supply or removal of heat, and the rotor is provided with one or more internal channels connected to an inlet and an outlet for supply or removal of heat. Such a screw pump is suitable for pumping emulsion susceptible to mechanical or temperature damage. Food emulsions manufactured with reduced or without addition of emulsifiers may be transported using such a pump without mechanical damage to the emulsion.

Abstract: The invention relates to a stator for an eccentric screw pump or an eccentric worm motor, including an outer tube that is provided with a lining of rubber or a rubber-like material and has a hollow space or cavity, in the shape of a double or multiple spiral, for accommodating a rigid rotor that is also in the form of a spiral, whereby the stator has one spiral more than does the motor. So that the stator also remains functional under conditions where the fixed connection between the lining and the outer tube could be destroyed, e.g. due to chemical influences or high temperatures, the invention proposes disposing two inner tubes that have apertures in the lining.

Abstract: A ribbon drive pumping apparatus and method for substantially incompressible fluids, such as liquids, is disclosed. The pump has an extended tube having an intake at a first end and an outlet at a second end. A ribbon formed of helical coils is mounted in the tube for rotation and the frequency of the coils decreases from the first end to the second end of the tube. Substantially incompressible fluid is collected at the first end, an axial component of velocity is increased via the rotating ribbon, and the substantially incompressible fluid is ejected from the second end to provide pumping of the liquid. Additional fluid is added to an interior portion of the pump, preferably to a low pressure region, for various purposes such as mixing, cavitation prevention, increased throughput, etc.

Abstract: An installation comprising a turbine equipped with a wheel rotatable about an axis (X-X′), and a tank feeding the turbine. The feed tank having, projecting on a plane globally perpendicular to the axis (X-X′), an external spiral shape. The feed tank forms a helico-convergent duct centered on the axis (X-X′) and convergent towards the turbine. The duct is bordered by an outer partition, an inner partition and at least an intermediate partition contributing to the reinforcement of the tank.

Abstract: The ribbon drive generation apparatus is comprised of a ribbon-like curved shape, composed either of metal or other suitable material, attached to a central axle with the complete apparatus being contained in a tube having a constant diameter for the length of the tube. A front portion of the tube has a pivot or tether and the rear portion of the tube has a drag means, such as fins, so as to cause rotation of the tube until it is oriented parallel to the flow. In another embodiment of the present invention, the electrical output of the ribbon drive generation apparatus is connected to a storage battery so as to store energy in times of high flow and make up for generating deficiencies during times of lesser flow. In yet another embodiment of the present invention, plural generating stages are serially arranged to adapt to flow variation and provide smooth start-up. Bypass vents and coupling means are located between each stage.

Abstract: A swirling compressor comprises a number of swirling tubes and a motor, each swirling tube has a fixture at a center portion with a flange bulging out from one side and a hole at the other end of the center portion opposing the flange, an aperture is formed close to the center end at the inside of the tube, this fixture design allows the swirling tube to pile up with one over the other forming a wind passage, and a spindle of a motor is inserted through the hole and secured thereat. When the motor driven the swirling tubes set to spin, each tube collects a portion of whirlwind, and all whirlwind will be blown out from the fixture.

Abstract: The present invention provides a suction and injection pump capable of transferring a sufficient amount of viscous liquid even with a very thin suction and injection pipe, thereby enabling suction or injection of a viscous liquid while minimizing invasion into a human body. A pump according to the present invention effectively sucks or injects a viscous liquid by housing a very thin rotor in a cylindrical needle and positively transferring the liquid based on the mechanical configuration of the rotor. The configuration of the present invention reduces the diameter of a pipe while minimizing invasion into a human body.

Abstract: A screw groove-type pump has a rotor member mounted for undergoing rotation, a stator member arranged so as to be coaxial with the rotor member and having a peripheral wall disposed opposite to and spaced-apart from a circumferential wall of the rotor member, an inlet port for introducing gas into a space between the circumferential wall of the rotor member and the peripheral wall of the stator member, and an outlet port for discharging gas introduced into the space between the circumferential wall of the rotor member and the peripheral wall of the stator member. A screw groove is formed on one of the circumferential wall of the rotor member and the peripheral wall of the stator member for transferring gas introduced into the inlet port through the space between the circumferential wall of the rotor member and the peripheral wall of the stator member and to the outlet port during rotation of the rotor member.

Abstract: A vacuum pump for pumping gas from a pump inlet to a pump outlet, comprising a rotor and a stator body in which the rotor is adapted for rotation and including at least two molecular drag stages each comprising adjacent stationary and rotating Holweck cylinders attached to the stator body and the rotor respectively and with a threaded upstanding helical flange positioned therebetween which is attached either to the stationary or to the rotating cylinder wherein the molecular drag stage closest to the pump inlet has the threaded flange on its rotating cylinder and the subsequent molecular drag stage or stages has the threaded flange on the stationary cylinder.

Abstract: Apparatus for supplying high pressure gas to an engine, to operate the engine, including in combination a gas pressurizer having a low gas pressure inlet to receive inlet gas, as for example discharge gas from the engine, and a high gas pressure outlet to deliver supply gas at high pressure to the engine, the pressurizer including a rotary body defining a gas flow channel that extends about an axis in a spiral of decreasing radius, and a drive operatively connected with the body to rotate the body about an axis, at high velocity, to effect gas flow and pressure increase, along the channel, for supply to the engine via an outlet from the pressurizer.

Abstract: A ribbon drive power generation system and method is disclosed. The system is equipped with an extended tube having an intake at a first end and an outlet at a second end. A ribbon formed of helical coils is mounted in the tube for rotation and the frequency of the coils increases from the first end to the second end of the tube. Moving water is directed into the first end, an axial component of momentum of the water is decreased via the rotating ribbon, and the rotation is used to induce electricity or drive an electrical generator. The scalability and modular nature of the present invention allow flexible implementation.

Abstract: A vacuum pump comprises an inlet port into which a gas is introduced, an outlet port from which the gas is discharged, a stator, a motor, and a rotor opposing the stator and driven by the motor to undergo rotation to cooperate with the stator to force the gas from the inlet port to the outlet port. The rotor has a body, a spiral thread disposed on the body, and a thread groove disposed between adjacent lines of the spiral thread. An axial length of the spiral thread is shorter than an axial length of the rotor so that a terminal end portion of the spiral thread terminates short of an axial end of the rotor. The terminal end portion of the spiral thread slopes inward toward a surface portion of one of the thread grooves. A junction surface between a terminal end portion of the slope of the spiral thread and the surface portion of the thread groove forms a recessed portion.

Abstract: A turbine method and apparatus having a stator and rotor mounted for rotation relative to the stator. The stator has at least one groove facing the rotor and the rotor has at least one groove facing the stator, the direction of each rotor groove intersecting the direction of a corresponding one of the stator grooves to form a round channel for retention of a ball driven by intermittently inserted propelling fluid as the closely fitted lands of the stator and rotor partially seal the space holding the ball as it rolls along this channel between a presssure inlet and outlet thereof. A return passage returns the ball from the channel outlet to the channel inlet in response to a portion of the propelling fluid or a mechanical moving element. The stator groove may be straight or curved and the rotor groove straight or both the stator and rotor grooves may be curved at different angles.

Abstract: One or more improved pump impellers are provided and are rotationally supported in a pump having one or more stages. The improved impeller comprises a fluid induction core of flow passages spiraling axially about the impellers rotational axis and a stack of circular disks extending radially and concentrically from the induction core. The stack of disks is preferably a frusto-conical stack with the disks at the downstream end of the impeller having a lesser radial extent than do the upstream disks so that incrementally less fluid issues from each successive radial flow passage between adjacent disks thereby reducing head loss in the issuing viscous fluid flow and increasing pumping efficiency. Increased pump efficiency permits one to provide a conical pump housing profile about each impeller which corresponds with the conical stack, thereby diminishing the fluid flow area and increasing the discharge pressure and flow capacity of each pumping stage.

Abstract: A harden screw form and methods of making same for use with, for example, positive displacement rotary axial screw pumps are disclosed. The methods include the use of a CNC machine with a laser and a special, newly developed optic for selectively hardening the contact areas of screw forms, such as for example, rotors used in positive displacement rotary axial screw pumps such that the rotor undergoes only controllable or predictable distortion as a result of the hardening process. Hardened screw forms manufactured by the CNC/laser/optic process that are free of uncontrollable or unpredictable distortion are also disclosed.

Abstract: A gas friction pump including a rotor located in the pump housing and formed of a plurality of coaxial first cylindrical elements, and a stator located in the housing and formed of a plurality of second cylindrical elements coaxial with the first cylindrical elements and surrounding respective first cylindrical elements, with the first cylindrical elements or the second cylindrical elements having smooth inner and outer surfaces, and another ones of the first cylindrical elements and the second cylindrical elements have a plurality of parallel discharge channels formed on their inner and outer surfaces, arranged one beneath another and separated by a respective plurality of webs, the parallel discharge channels defining a plurality of parallel discharge chambers forming a plurality of parallel operating pumping chambers for pumping gas form the suction port to the discharge port.

Abstract: A turbine apparatus having a stator and a rotor mounted for rotation relative to the stator. The stator has at least one groove facing the rotor and the rotor has at least one groove facing the stator, the direction of each of the rotor grooves intersecting the dirction of a corresponding one of the stator grooves to form a channel for receiving a ball driven by a propelling fluid to cause the rotor to rotate as the ball travels along the channel from an inlet to an outlet thereof. A return passage returns the ball from the channel outlet to the channel inlet in response to gravity, a portion of the propelling fluid, or a moving mechanical element. The stator groove may be straight and the rotor groove cirved or the tator groove may be curved and the rotor groove straight or both the stator and the rotor grooves may be curved.