Abstract: Some embodiments of the disclosed subject matter includes a laminated robotic actuator. The laminated robotic actuator includes a strain-limiting layer comprising a flexible, non-extensible material in the form of a sheet or thin film, a flexible inflatable layer in the form of a thin film or sheet in facing relationship with the strain-limiting layer, wherein the inflatable layer is selectively adhered to the strain-limiting layer, and wherein a portion of an un-adhered region between the strain-limiting layer and the inflatable layer defines a pressurizable channel, and at least one fluid inlet in fluid communication with the pressurizable channel. The first flexible non-extensible material has a stiffness that is greater than the stiffness of the second flexible elastomeric material and the flexible elastomer is non-extensible under actuation conditions.

Abstract: Among other things, an integrated portable energy conversion mat is to be installed at a pavement surface over which a car or truck is to pass. The mat has a width at least as wide as the distance between the outermost edges of the treads of the tires located at an axle of the car or truck. The mat has a top surface over which the tires of the car or truck are to pass. The mat includes a sealed enclosed space housing and energy conversion system. The energy conversion system includes two sets of channels that extend along a length of the mat and contain hydraulic fluid under pressure. An energy converter converts energy carried by the hydraulic fluid in response to the tires of the car or truck passing over the top surface into electrical energy. An electrical port is coupled to the energy converter and exposed at an outer surface of the mat.

Abstract: A plasma thruster includes extraction of a stream of positive ions. The plasma thruster includes a single ionization stage; injecting ionizable gas for said ionization stage comprising injecting a first gas and an electronegative second gas; creating an RF electric field to cause the gases to ionize in the ionization stage creating a first zone called the hot zone, in the ionization stage; the first gas being distributed in the hot first zone, the second gas being distributed in a second zone less hot than said first zone; extracting a stream of negative ions and a stream of positive ions, these being both connected to the ionization stage; and the extraction of a stream of positive ions and the extraction of a stream of negative ions, ensuring that the thruster is electrically neutral.

Abstract: A liquid supply system includes first and second bellows 41 and 42 arranged in series in an expanding/contracting direction thereof in a vessel 12 and having first end portions respectively, which are close to each other and fixed to an inner wall of the vessel 12, and also having second end portions respectively, which are distant from each other and movable in the expanding/contracting direction. An inner space of the vessel 12 located outside the first bellows 41 serves as a first pump chamber P1. An inner space of the vessel 12 located outside the second bellows 42 serves as a second pump chamber P2. An inner space of the vessel 12 located inside the first and second bellows 41 and 42 serves as a sealed space R1. A shaft 15 to which the respective second end portions of the first and second bellows 41 and 42 are fixed is reciprocally moved to expand/contract the first and second bellows 41 and 42.

Abstract: A fluid delivery device includes: a first chamber configured to receive fluid from a fluid reservoir; a second chamber configured generate a vacuum therein to apply pressure to the fluid in the first chamber to enable the fluid in the first chamber to be output from the fluid delivery device; and a flow control member configured to allow the fluid in the first chamber to flow through the flow control member into the fluid reservoir at a predetermined flow rate to decrease the vacuum in the second chamber.

Abstract: A negative pressure pump has: a casing; a pump portion; a drive-side clutch plate that rotates integrally with a drive shaft, is movable in an axial direction of the drive shaft, and is magnetic; a driven-side clutch plate that rotates integrally with a driven shaft and transmits the rotation of the drive shaft to the driven shaft as a result of the drive-side clutch plate becoming engaged with it; a coil spring that presses the drive-side clutch plate against the driven-side clutch plate; an electromagnet that produces a magnetic force counter to a pressing force and pulls the drive-side clutch plate away from the driven-side clutch plate; and a jutting wall portion that is disposed in the casing and receives the driven-side clutch plate on which the pressing force acts and a jutting wall portion that supports one end portion of the coil spring.

Abstract: The present invention provides an eccentric roundel structure for four-booster-chamber diaphragm pump. The eccentric roundel structure is a truncated-cylinder eccentric roundel in an eccentric roundel mount. The truncated-cylinder eccentric roundel characteristically comprises an annular positioning dent, a truncated cylinder peripheral and a sloped top ring created from the annular positioning dent to the truncated cylinder peripheral to replace a conventional rounded shoulder. By means of the sloped top ring, the oblique pull and squeezing phenomena of high frequency incurred by the rounded shoulder in a conventional tubular eccentric roundel are completely eliminated. Thus, not only the durability of the four-booster-chamber diaphragm pump for sustaining the pumping action of high frequency from the truncated-cylinder eccentric roundels is mainly enhanced but also the service lifespan of the four-booster-chamber diaphragm pump is exceedingly prolonged.

Abstract: By a securing structure 4, a diaphragm 3 dividing a space 20 into a first chest 21 and a second chest 22 is secured to a case 2 forming the space 20 therein. The case 2 has a first frame 5 having a first concave portion 50 for forming the first chest 21, and a second frame 6 having a second concave portion 60 for forming the second chest 22. The edge portion 32 of the diaphragm 3 is compressed and secured between the first frame 5 and the second frame 6 which are fitted with each other. The first frame 5 has a first securing portion 52 for retaining the second frame 6 upon the fitting so as not to come off.

Abstract: A piezoelectric blower includes a valve, a housing, a vibrating plate, and a piezoelectric element. The vibrating plate forms, together with the housing, a column-shaped blower chamber such that the blower chamber is interposed therebetween in a thickness direction of the vibrating plate. The vibrating plate and the housing are formed such that the blower chamber has a radius (a). The piezoelectric element causes the vibrating plate to undergo concentric bending vibration at a resonance frequency (f). The radius (a) of the blower chamber and the resonance frequency (f) of the vibrating plate satisfy a relationship of 0.8×(k0c)/(2?)?af?1.2×(k0c)/(2?), where an acoustic velocity of gas that passes through the blower chamber is (c) and a value that satisfies a relationship of a Bessel function of a first kind of J0(k0)=0 is k0.

Abstract: A dual completion linear rod pumping apparatus for imparting reciprocating vertical motion to a pair of rods for respective sucker-rod pumps. The dual completion linear rod pumping apparatus includes first and second linear mechanical actuator systems disposed in a single housing. These linear mechanical actuator systems impart and control vertical motion of the pair of rods. Each linear mechanical actuator system includes a rack and pinion gearing arrangement. The rack is operatively connected in a gear-mesh relationship with the pinion. The pinion is operatively connected to a rotating output of a motor. Rotation of the motor in a first direction results in an upward motion of the rack and connected sucker rod pump. Rotation of the motor in a second direction opposite the first direction results in a downward motion of the rack and connected sucker rod pump. An electronic controller is operatively connected to the motor.

Abstract: Systems and methods of the invention relate to diagnosing a compressor. A method may include monitoring a pressure of compressed air within a reservoir, actuating a piston within a cylinder of the compressor, and detecting a leak condition of an exhaust valve of the cylinder through recognition of a change in the monitored pressure of the compressed air within the reservoir during a time period in which the piston is actuated. A system is also disclosed including an engine, a compressor operatively connected to the engine, and a controller that is operable to determine a condition of the compressor.

Abstract: The present invention comprises: a stator 2 that is cylindrical and has a through hole 10, the through hole 10 in the shape of a female screw and being formed at a certain pitch in the flow direction from an inlet to an outlet; and a rotor 3 that is formed in the shape of a male screw, is inserted into the through hole 10 of the stator 2 to form a transport space 11 with the inner circumferential surface of the through hole, and rotates to move a fluid from the inlet to the outlet through the transport space 11 while being inscribed on the inner circumferential surface. The volume of the transport space 11 is reduced toward the flow direction. This prevents, reliably, the occurrence of bubbles from a fluid at a downstream-side when the fluid is transported through the transport space 11 formed between the stator 2 and the rotor 3.

Abstract: The present invention comprises: a stator 2 that is cylindrical and has a through hole 10, the through hole 10 in the shape of a female screw and being formed at a certain pitch in the flow direction from an inlet to an outlet; and a rotor 3 that is formed in the shape of a male screw, is inserted into the through hole 10 of the stator 2 to form a transport space 11 with the inner circumferential surface of the through hole, and rotates to move a fluid from the inlet to the outlet through the transport space 11 while being inscribed on the inner circumferential surface. The volume of the transport space 11 is reduced toward the flow direction. This prevents, reliably, the occurrence of bubbles from a fluid at a downstream-side when the fluid is transported through the transport space 11 formed between the stator 2 and the rotor 3.

Abstract: Provided are a sliding member for pumps in which generation of a wear substance is quickly and accurately grasped even if the wear substance is generated when the sliding member slides while being in contact with another member, and a pump operation state detection system using the sliding member. The pump operation state detection system includes a uniaxial eccentric screw pump, a detection device capable of detecting metal powder in a fluid discharged from the uniaxial eccentric screw pump, and a determination device. In the uniaxial eccentric screw pump, a stator is arranged so as to be exposed to a fluid conveyance path through which the fluid flows. The stator is configured to slide while being in contact with a rotor along with operation of the uniaxial eccentric screw pump. The stator is made of a resin or a rubber and contains 10-30% of metal powder by weight ratio.

Abstract: An eccentric screw pump, comprising a rotor that extends along a longitudinal axis of the rotor from a drive end to a free end, a stator housing with an internal cavity that extends along the longitudinal axis from a stator inlet opening to a stator outlet opening and that is designed to accommodate the rotor, a drive motor with a drive shaft that is coupled with the rotor to transmit a torque, a first cardan joint which is placed within the transmission of the torque between the drive shaft and the rotor, and a stator outlet flange that is arranged in flow direction behind the rotor. The stator outlet flange comprises a flange connection plane that is oriented non-vertically to the longitudinal axis.

Abstract: The present invention discloses a hydraulic style motor having a first power input housing containing a first plurality of rotary or centrifugally driven pumps and associated valves, such that the pumps are driven in a determined stacked fashion by a powered input (or drive) shaft. A second power output housing contains at least one second rotary driven pump and associated valve, the second pumps rotatably engaging a second output (driven) shaft. A pressure resistant fluid line interconnects a manifold associated with the first housing with another manifold associated with the second housing so that the pressurized fluid generated by rotation of the input pumps in the input housing is communicated to the output housing to drive the output pumps to rotate the output (driven) shaft. A return line communicates with the output housing manifold, via each of the individual pump and valve subassemblies, for redirecting flow back to an input feed to the input housing.

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 scroll compressor includes first and second scroll bodies having respective bases and respective scroll ribs that project from the respective bases such that the scroll ribs mutually engage. The second scroll body is movable relative to the first scroll body for compressing fluid. A drive shaft has a longitudinal axis and an eccentric drive pin configured to engage a drive hub on the second scroll body. A counterweight has a hub portion, and a perimeter portion positioned radially outward from the hub portion. A radial axis divides the counterweight into a first and second regions. The mass of the hub portion in the first region being roughly equal to the mass of the hub portion in the second region, and the mass in the perimeter portion being distributed between the first and second regions such that the center of mass of the counterweight is located along the radial axis.

Abstract: A main bearing is disposed on one surface of a first cylinder, an intermediate plate is disposed on another surface of the first cylinder, the intermediate plate is disposed on one surface of a second cylinder, and an auxiliary bearing is disposed on another surface of the second cylinder. A shaft is constituted by a main shaft portion, a first eccentric portion, a second eccentric portion, and an auxiliary shaft portion. A first eccentric portion center position (H1/2) which is the center position of the first eccentric portion in height (H1) is located at a position closer to the main bearing than a first piston center position (P1/2) which is the center position of a first piston in height (P1). A second eccentric portion center position (H2/2) which is the center position of the second eccentric portion in height (H2) is located at a position closer to the auxiliary bearing than a second piston center position (P2/2) which is the center position of a second piston in height (P2).

Abstract: A rotary compressor having two cylinders includes crankshaft having first eccentric portion and second eccentric portion connected to each other by connecting portion. The rotary compressor further includes two compressive elements that compress working fluid in cylinder as first piston inserted over first eccentric portion eccentrically rotates in accordance with rotation of crankshaft. Further, first piston inserted over first eccentric portion undergoes assembly by being inserted over first eccentric portion through second eccentric portion. Further, a releasing portion is provided at each of outer diameter portions of first eccentric portion and second eccentric portion.

Abstract: A rotary compressor having two cylinders includes crankshaft having first eccentric portion and second eccentric portion connected to each other by connecting portion. The rotary compressor further includes two compressive elements that compress working fluid in cylinder as first piston inserted over first eccentric portion eccentrically rotates in accordance with rotation of crankshaft. Further, first piston inserted over first eccentric portion undergoes assembly by being inserted over first eccentric portion through second eccentric portion. Further, a releasing portion is provided at each of outer diameter portions of first eccentric portion and second eccentric portion.

Abstract: Turbine pump assemblies and methods of making the same are provided. The assemblies include a body, a centrifugal pump having a shroud located within the body, a shroud cavity formed external to the shroud, and an ejector pump fluidly connected to the shroud cavity by a purge gas flow path, the ejector pump configured to reduce a pressure within the shroud cavity.

Abstract: An electric motor driven that includes a pump body and a motor body having a rotor enclosure coupled to the pump body. The motor body further includes a rotatable impeller arranged on a first side of the rotor enclosure. An electric motor arranged on a second side of the rotor enclosure, opposite the first side, the electric motor having a stator, at least one stator coil, terminals connected to the stator coil and a rotor, the rotor including a shaft that is coupled with the impeller. A cover is disposed over the electric motor, the cover having an open end that is attached to the rotor enclosure in a manner that produces a leak-tight chamber inside the cover, the stator and stator coil being arranged inside the leak-tight chamber, the leak-tight chamber being filled with a non-gaseous filler material, the non-gaseous filler material having a thermal conductivity greater than air.

Abstract: A method for measuring an air volume of a blower motor, including: a) establishing M constant air volume control functions Qi=F(n) corresponding to M air volume points CFMi in a microprocessor of a motor controller; b) starting the motor, measuring a real-time rotational speed n0 and a parameter Q0 of the motor after the motor runs in a stable state, putting the parameter Q0 into the functions Qi=F(n) to obtain multiple rotational speeds ni, comparing the real-time rotational speed n0 with the multiple rotational speeds ni corresponding to the multiple air volume points CFMi, and determining a real-time detected air volume CFM0 which falls within two air volumes CFMi and CFMi-1; and c) calculating the real-time detected air volume CFM0 according to the two air volumes CFMi and CFMi-1 and the rotational speeds ni and ni-1 using an interpolation method.

Abstract: Fracture-resistant and self-lubricating wear surfaces are provided. In an implementation, a machine surface that is subject to wear is coated with or is constructed of a metallic nanostructure to resist the wear and to provide fracture-resistant hardness, built-in lubrication, and thermal conductivity for heat-sinking friction. The metallic nanostructured surface may be used, for example, on a face seal, bushing, bearing, thrust member, or hydraulic flow passage of an electric submersible pump. In an implementation, the metallic nanostructured surface is a nanocrystalline alloy including nanograin twins of a body-centered cubic (BCC), face-centered cubic (FCC), or hexagonal closest packed (HCP) metal. The nanostructured alloy may include atoms of copper, silver, gold, iron, nickel, palladium, platinum, rhodium, beryllium, magnesium, titanium, zirconium, or cobalt, and may provide more hardness and lubricity than diamond-like carbon coatings or carbides.

Abstract: This invention prevents seizure of a dynamic pressure gas bearing caused upon swinging contact between a motor shaft and a sleeve and an increase in contact friction torque. It also detects rotation of auxiliary bearings. A motor includes auxiliary bearings in series with a dynamic pressure gas bearing, and a non-contact detent torque generation mechanism parallel to the auxiliary bearings suppresses rotation of the auxiliary bearings. Where Ta denotes rotation-time viscous friction torque of the dynamic pressure gas bearing, Tka denotes contact friction torque possibly causing damage to the dynamic pressure gas bearing, Tb denotes rotation friction torque of the auxiliary bearings, and Tdmax denotes maximum torque generated when rotation of the auxiliary bearings is suppressed by the non-contact detent torque generation mechanism, (Ta+Tka)>(Tb+Tdmax)>(Ta), and the rotation detecting means detects the rotation of the auxiliary bearings.

Abstract: A compressor wheel assembly of a turbocharger can include a compressor wheel that includes a through bore that extends from a base portion to a nose portion of the compressor wheel; a turbocharger shaft disposed in the through bore of the compressor wheel where the turbocharger shaft includes an end portion that extends axially away from the nose portion of the compressor wheel; and a swaged collar fixed to the end portion of the turbocharger shaft.

Abstract: A multistage submersible pump includes interstage sealing operable to inhibit upstream fluid recirculation, while also having a reduced or eliminated wear-in procedure. A wear-in bearing surface erodes during an initial, wear-in procedure of the pump, and a low-friction service bearing surface slowly engages as the wear-in procedure is completed. Both the wear-in and service bearing surfaces are integrated into a single, stamped stainless steel housing component, such that axial tolerance between the two surfaces is tightly controllable. The pump impeller provides corresponding wear-in and service bearing elements formed as part of a single monolithic component, thereby also offering tight axial tolerance control for the bearing elements which engage the bearing surfaces of the cup component.

Abstract: An abradable seal comprises an organic matrix composite comprising an additive and an organic component, the additive is configured to prevent adhesion of the organic component onto an abrasive blade tip.

Abstract: A fan assembly for an aviation turbine engine, the assembly including a fan disk having at least one tooth and at least one platform mounted on the tooth of the fan disk, the platform including a box of composite material made from fiber reinforcement densified by a matrix, the box having a flow passage wall, a bottom wall, and two side walls extending radially between the bottom wall and the flow passage wall. The box of the platform includes an upstream opening at an upstream end of the platform and a downstream opening, and the assembly also includes a locking key housed in the box and passing through the upstream and downstream openings of the box, the locking key being blocked at each of its ends by a blocking element.

Abstract: A liquid pump including a motor housing, a motor, a volute housing joined to the motor housing, and upper and lower seals contained in the volute housing. The motor housing has a motor housing side wall including a distal end joined to the volute housing. The motor includes a rotatable shaft that extends into the volute housing. The volute housing includes an upper volute wall having a major portion in direct fluid communication with the motor housing volume, thereby enabling a high rate of heat transfer from the motor to the fluid in the volute that is being pumped. In that manner, the pump has dual seal capability that reduces the risk of motor damage due to a seal failure, while also having a high rate of heat transfer out of the motor housing, which reduces the risk of failure of the motor from operating at a high temperature.

Abstract: The present disclosure relates generally to the field of variable geometry guide vanes for gas turbine engines. More specifically, the present disclosure relates to a plastic variable inlet guide vane for a gas turbine engine.

Abstract: A fluid device having a fluid machine and a rotary electric machine includes a fluid machine and a rotary electric machine connected to a rotating shaft of the fluid machine. A cooler is arranged for carrying out liquid-cooling using a fluid of a cooling pipe connecting an upstream portion and a downstream portion of the fluid machine to bypass the fluid machine. The fluid machine and the rotary electric machine are detachably coupled to each other. Hence, the rotary electric machine can enhance the cooling performance for the rotary electric machine and reduce its size, achieving improvements in maintainability and serviceability.

Abstract: A vacuum pump control device comprises: a pump controller configured to control a vacuum pump; a cooling device configured to cool the pump controller; a housing configured to house the pump controller; a temperature sensor configured to detect, in the housing, a temperature at one of a first position or a second position having a higher temperature than that at the first position; a humidity sensor configured to detect a humidity at the second position in the housing; a temperature estimator configured to estimate a temperature at the other one of the first position or the second position based on the temperature detected by the temperature sensor; and a cooling controller configured to control execution and stop of cooling operation by the cooling device based on the temperature estimated by the temperature estimator, the temperature detected by the temperature sensor, and the humidity detected by the humidity sensor.

Abstract: An impeller for used in a fluid pump device includes a shaft controlled to revolve in a first direction; an impeller body coupled to the shaft and driven by the revolving shaft to rotate, the impeller body having a top surface, a bottom surface and a circumferential surface; a first set of fluid-guiding members disposed on the top surface of the impeller body for driving a fluid to flow along a centrifugal direction of the revolving shaft; and a second set of fluid-guiding members disposed on the circumferential surface of the impeller body. Each or at least one of the second set of fluid-guiding members has a titling structure for driving the fluid to flow from the top to the bottom of the impeller along a designated path on the circumferential surface.

Abstract: This compressor assembly method involves: an arrangement step in which a bundle (2) is arranged such that an external travel device (31) can travel on a base surface (25) and an internal travel device can travel on the inner peripheral surface (12) of a casing (3); a vertical position adjustment step in which, while measuring the relative positions in the vertical direction of the inner peripheral surface (12) of the casing (3) and the outer peripheral surface (13) of the bundle (2) at the opening (15) of the casing, the height position of the bundle (2) supported by the outside travel device (31) is adjusted on the basis of the measured relative positions in the vertical direction; and an insertion step in which the bundle (2) is inserted into the casing (3) while the vertical position adjustment step is performed.

Abstract: A method of assembling and retaining a noise attenuation device (30) within an air inlet (16) of a compressor cover (12) includes inserting the noise attenuation device (30) into the air inlet (16) and applying a rolling compressive force to the air inlet (16) using a forming tool (40). As a result, the air inlet terminal end (17) is deformed radially inward so as to form a radially-inwardly protruding lip (17b) about the air inlet terminal end (17). The radially-inwardly protruding lip (17b) is configured to retain the noise attenuation device (30) within the air inlet (16). The forming tool (40) used to form the radially-inwardly protruding lip (17b) is also described.

Abstract: A ceiling fan including a retention system and method of redundantly retaining a ceiling fan can include a ceiling fan motor assembly including a hollow motor shaft at least partially surrounded by a motor housing. A retainer plate is provided at the bottom of the motor housing including an opening. A retainer rod extends through the opening in the retainer plate and secures to the retainer plate. A support cable couples to the retainer rod to suspend the retainer plate from a structure, wherein the retainer plate is configured to redundantly retainer the ceiling fan.

Abstract: In accordance with one aspect of the disclosure, a rotor for a gas turbine engine is disclosed. The rotor may include a rotor disk and a plurality of blade extending radially outward from the rotor disk. At least one of the blades may have a physical nonuniformity. The blades may be distributed about the rotor disk based on any physical nonuniformities of the blades to generate at least one decay-resistant harmonic.

Abstract: A method for minimizing a fuel consumption rate of a vehicle and a method for tracking an optimal state of charge function for a hydrostatic accumulator are provided. The first method includes the steps of providing a motor and pump, determining an efficiency of the motor and pump using an efficiency map, providing a power source, and controlling the motor independent from the pump with a controller. The controller employs the efficiency of the motor and the pump to minimize the fuel consumption rate of the vehicle. The second method includes the steps of determining the optimal state of charge control function, calculating an optimal state of charge of the hydrostatic accumulator, determining a state of charge error, calculating a corrective value, and adjusting a state of a charge based on the corrective value and the state of charge error by adjusting the charge of the hydrostatic accumulator.

Abstract: A hydraulic control system may include a closed loop hydraulic circuit with at least one hydraulic motor. A plurality of variable displacement pumps may be fluidly connected in parallel in the closed loop hydraulic circuit. A plurality of hydraulic actuators may be configured to adjust the displacement of the variable displacement pumps. A pilot valve assembly may be configured to supply the hydraulic actuators with hydraulic fluid having a pilot pressure corresponding to a desired displacement of the variable displacement pumps. A pressure regulating device may be configured to limit the pilot pressure of the hydraulic fluid supplied to the hydraulic actuators when a working pressure in the closed loop hydraulic circuit reaches a maximum allowable working pressure.

Abstract: A system and method for detecting uncommanded positioning of at least one valve spool in a plurality of valve spools and for stopping fluid flow to a plurality of hydraulic actuators fluidly connected to the plurality of valve spools is disclosed. The method may comprise receiving a signal fluid pressure detected in a signal passageway, identifying whether at least one activation command is currently enabled, and stopping the flow of fluid to the plurality of hydraulic actuators if no activation command is enabled for any of the plurality of valve spools, and the signal fluid pressure when detected (1) upstream of the plurality of valve spools is greater than a first threshold or (2) downstream of the plurality of valve spools is less than a second threshold.

Abstract: A method of and for optimizing pressure waves in fluids and profiling openings of elements of mechanical system to optimize systems, is provided. The method aids in the generation of pressure waves with predetermined waveform in elastic fluids and can be used to increase the energy efficiency in the pipeline technologies for the transportation of flowable media, one-phase and multi-phase, homogeneous, and heterogeneous media; powders, disperse mixtures; and technologies of forced extraction of liquids from capillary porous saturated media.

Abstract: A connector for non-cylindrical composite tubing and methods for making the same. The method may involve assembling a connector for a non-cylindrical composite tubing by loosely fastening a pair of bonding plates to an end plate; arranging the bonding plates in an inward configuration; applying an epoxy adhesive onto the outer faces of the bonding plates, inserting the bonding plates into the open end of the composite tubing, inserting the bonding plate fasteners through the through-holes of the composite tubing and tightly fastening the bonding plate fasteners into the bonding plates until the bonding plates engage against the inner surface of the composite tubing until the epoxy adhesive is uniformly distributed. The method may also include steps of removing the bonding plate screw fasteners and adding shims between each bonding plate and the inner surface of the composite tubing in order to maintain a predetermined thickness of the epoxy adhesive.

Abstract: An exemplary method of adjustably mounting a first component to a second component includes, among other things, securing the first component to the second component with a linking member, and selectively adjusting the temperature of a variable portion of the linking member to change a size of the linking member.

Abstract: A connecting element (30) for fixation of two half-shells (10, 20) of a buckle cover (5) for a seat belt buckle. The connecting element (30) includes two externally profiled end-sections, an anchoring section (21) that is mounted to a first half-shell (20), with a fastening section (11) adjoining a separation section (15), The connecting element (30) is connected to the half-shell (20) in a material-bonded or interference-fit manner and the fastening section (11) is connected in a friction- and interference-fit manner to the additional half-shell (10). The fastening section (11) includes a core plug (14) that tapers conically toward the free end, and having a symmetrically or asymmetrically formed ramp-shaped structure formed of single ramp-shaped sections (13) that widen respectively in the direction of the separation section (15).

Abstract: A method and device for sealing holes in blocks such as hydraulic manifolds, engine blocks and the like is provided and includes a sheet with a plurality of holes therein, each hole is designed to receive an insert of a particular size and each hole corresponds to an installation hole in a block or manifold such that when the sheet is aligned with the block/manifold, the insert can be pressed into the installation hole and expanded against the wall of the installation hole. The sheet provides protection against damage of the block during installation of the inserts therein, which may be accomplished with a pneumatic hammer.

Abstract: The present invention relates to a coil (10) for transmitting torque to a threaded insert sleeve with an external thread and/or for tapping a thread. The coil (10) comprises a radially outer profile for anchoring the coil (10) in a threaded insert sleeve and for transmitting a torque to the threaded insert sleeve and/or for tapping a thread. In addition, the coil (10) comprises a driving profile suitable for receiving a drive, which can engage in the driving profile in such a way that a torque can be transmitted from the drive to said coil (10) and that at the same time the drive limits or avoids any torsion of the coil (10).

Abstract: The subject of the invention is an assembly and clamping bolt to be employed under tension, having a shank and a head, wherein the head, situated at a first end of the shank, is provided with a clamping tensioning means with a hydraulic cylinder mounted permanently on the bolt, clamping taking place between a rear shoulder device and the hydraulic cylinder, the rear shoulder device being disposed at a second end of the shank.

Abstract: An anchor for accepting a screw and a method of using the same is provided. In an embodiment, the anchor has a generally cylindrical hollow shaft secured to a generally concave circular spring-tensioned base unit. From the underside of the generally concave circular spring-tensioned base unit, the generally cylindrical hollow shaft receives a screw (applied from the opposing side of a wall or panel). The generally concave circular spring-tensioned base unit may be secured to the wall or panel in a predominately flush manner (along the rim) and may be used to prevent insulating foam from dislodging the anchor, which must remain in place during the foam process. In an embodiment, the device does not utilize adhesives or tape.