Abstract: An apparatus for use in delivering tubulars to an elevated work area is described. A slideway for receiving a tubular is mounted on the leading end of an extendable carriage. The opposing end of the carriage is pivotally fixed to a frame assembly. Extension of the carriage drives the leading end towards a work area. A carriage support ramp receives the leading end of the carriage as it is extended, and guides the leading end towards the elevated work area for discharge of the tubular from the slideway.

Abstract: A folding bale spear system including a frame securable to a farm implement, particularly a tractor, left and right fork posts rotatable secured to the frame, left and right bale spears, one secured to the left fork post and one secured to the right fork post, and a system for rotation of the left and right fork posts about the frame such that in an open position, the bale spears are extended rearwardly from the frame, and in a closed position the bale spears cross each other and are rotated to a position substantially parallel to the frame.

Abstract: Scalable storage can be achieved with linear array storage of wafers, comprising two linear arrays of storage compartments on opposite walls, with a middle transfer mechanism. Together with a buffer station for automatic material handling system, a scalable bare wafer stocker can provide flexible and uninterrupted services to a fabrication facility.

Abstract: A weight based load limiting system for a refuse vehicle. The system includes a weight determination module that generates a signal that varies in accordance with a vehicle weight. If the vehicle weight approaches or exceeds a predetermined maximum weight, the signal inhibits a portion of the loading or packing operation to prevent overloading the vehicle. In various configurations, the inhibiting can be to prevent a lifting of a refuse container to prevent emptying the container into the vehicle hopper. In other various configurations, the inhibiting occurs by maintaining engine power to less than the engine power typically output during a packing operation.

Abstract: A wheelchair platform comprises a tilting platform for a wheelchair comprising a base to support the wheelchair in use and a back wall. The platform is pivotably connected between a pair of side supports in a compact construction. Actuators, such as hydraulic rams are operable to tilt the platform. The pivot axis for the platform is forward of the back wall and above the base. The actuators are also forward of the back wall. The platform swings forward when tilting. The base may be hinged approximately half way along its length to allow the front half to be folded over for storage.

Abstract: The UTILITY CARRYALL provides a safe reliable and efficient lift and transport support for users in the agricultural industries. It can be coupled to all hydraulic front loaders and rear 3point hitches on utility, skid steer and industrial tractors. It also can be attached to a forklift on a rear hydraulic 3point hitch and front loader on utility farm and skid steer tractors. The front support rack 22 supports a multiple adjusting coupling system FIGS. 1,6. This system provides a capability for coupling the utility carryall to all varying widths of front loader lift arms on utility tractors. A uniquely designed profile providing a method for a new unified structural support system in combination with a new multiple adjusting coupling system, illustrated in FIGS. 1, 6. This new method of fabrication provides an interrelated multifunctional exchange between integral elements of both systems.

Abstract: A separating tool for separating out objects one by one from a stack of objects includes a support base, an assembly plate positioned on the support base, a vertical sliding assembly slidably positioned on the assembly plate, and two opposing clamping members connected to the vertical sliding assembly. Each clamping member includes an engaging plate, a connecting shaft fixed to the engaging plate, and a cam base positioned on the support base. The cam base defines a cam slot, and the connecting shaft slides in the cam slot. A distance from a top end of the cam slot to the engaging plate is less than that from a bottom end of the cam slot to the engaging plate, such that the engaging plates of the two clamping members move together when the engaging plates are moved upwards with the connecting shaft.

Abstract: A counter-rotating axial flow fan with improved characteristics and reduced noise compared to the related art can be provided. Defining the number of front blades as N, the number of stationary blades as M, and the number of rear blades as P, and defining the maximum axial chord length of the front blades as Lf, the maximum axial chord length of the rear blades as Lr, the outside diameter of the front blades as Rf, and the outside diameter of the rear blades as Rr, the counter-rotating axial flow fan satisfies the following two relationships: N?P>M; and Lf/(Rf×?/N)?1.25 and/or Lr/(Rr×?/P)?0.83.

Abstract: A diffuser divider shaped as disc with a central axis, a leading edge disposed at an inner radius about the central axis, a trailing edge disposed at an outer radius about the central axis, an upper surface disposed between the leading edge and the trailing edge, a lower surface disposed between the leading edge and the trailing edge and one or more mounting features configured to mount the disc in a diffuser section configured to receive air compressed by two compressor wheel faces and to direct the compressed air to a volute. Such a divider can define throats in a diffuser section of a compressor assembly. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed.

Abstract: The invention relates to an axial bearing (10) comprising at least one or more segments (18) on each of the front side (22) and the rear side (26) thereof, wherein the segments (18) on the opposite sides (22, 26) each are disposed at least partially offset from each other.

Abstract: A centrifugal pump assembly with at least one impeller (8) and with a thrust bearing (44) which includes a rotating (50) and a stationary (48) bearing part. The rotating (50) as well as the stationary (48) bearing part are designed in a self-aligning manner.

Abstract: A turbine blade for a turbine engine includes main coolant passageways which extend through the turbine blade to cool the blade. A tip coolant passageway conveys coolant from a location adjacent the base of the blade directly to the tip of the blade to provide cooling fluid directly to the tip of the blade. This ensures that the coolant arriving at the tip of the blade is at a relatively low temperature and can therefore provide effective cooling of the material located at the tip of the blade.

Abstract: A rotor blade for a gas turbine engine, comprising an aerofoil having pressure and suction surfaces, leading and trailing edges, and an array of passages at a tip region of the aerofoil. The passages extend from the pressure surface to the suction surface of the aerofoil and are disposed so that the array creates, in operation, a planar jet of gas issuing from the suction surface. The jet is inclined outwardly from the suction surface and towards the tip, and in the direction from the leading edge to the trailing edge. The jet inhibits migration away from the suction surface of a clearance vortex formed by leakage of air over the tip of the rotor blade.

Abstract: A propulsion system and method includes an annular exhaust nozzle about an axis radially outboard of the annular cooling flow nozzle and ejecting an exhaust flow through an annular exhaust nozzle about an axis radially outboard of the annular cooling flow nozzle.

Abstract: A method for forming a pressure measurement hole in a component includes the step of forming a hole in a body of the component, the hole extending from a body surface of the component. An insert having a longitudinal passage is fitted into the hole such that the insert protrudes from the body surface. The protruding end of the insert is machined to define an insert surface profile matched to the body surface profile and displaced from the body surface by a distance substantially equal to a thickness of a covering layer that is to be bonded onto the body surface. A blocking pin is inserted into the insert passage. The covering layer is then bonded to the body surface in the region of the hole and insert after which the blocking pin is removed from the insert to open the pressure measurement hole.

Abstract: An assembly for driving accessories of a gas turbine is provided. The assembly includes: a gearbox having a front side face and a rear side face opposite the front face and having mounted therein a first gear train made up of three toothed wheels meshing with one another, and a second gear train made up of four toothed wheels meshing with one another; a power transmission shaft that is coupled in rotation with the first and second gear trains by a toothed wheel pair, and that emerges from the front side face of the gearbox; and nine distinct gas turbine accessories mounted against the side faces of the gearbox, and each including a respective drive shaft that is coupled in rotation with one of the toothed wheels of the two gear trains.

Abstract: An assembly kit includes a first turbocharger component flange with receptacles spaced according to a first interval angle; a second turbocharger component flange with receptacles spaced according to a second interval angle that differs from the first interval angle; and a piece configured for receipt by a receptacle of the first component and a receptacle of the second component where alignment of the receptacles determines a rotational orientation angle of the first component with respect to the second component. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed.

Abstract: In an axial-centrifugal compressor, the rotor of which includes an impeller, axial play is controlled by a special air ventilation to the rotor, by a circuit including two parallel arms, flow rates of which are both controlled by respective veins, and moreover the temperature in one of them is changed by a heat exchanger. The ventilation air is thus controlled, both in terms of temperature and flow rate.

Abstract: A submersible pump, and method of making the submersible pump, is disclosed. The pump comprises a housing, a plurality of impeller stages serially disposed in the housing from a bottom impeller stage to a top impeller stage, an impeller stage bypass hole extending through one of the diffusers and a housing bypass hole extending through the housing radially outwardly from one of the impeller stages.

Abstract: An aggregate vane assembly includes a core vane assembly encircling a central longitudinal axis and having a plurality of core vanes each extending radially between an inner hub and an outer band. The aggregate vane assembly also includes a bypass vane assembly disposed on a radially opposite side of the outer band relative to the plurality of core vanes. The aggregate vane assembly also includes a splitter ring positioned proximate to the first forward end. The aggregate vane assembly also includes at least one retention plate overlapping a forward end of the at least one bypass vane along the central longitudinal axis and also overlapping at least a portion of the splitter ring along the central longitudinal axis.

Abstract: A variable geometry turbine comprises: a turbine wheel (5) in a housing (1) for rotation about a turbine axis, an annular inlet passage (9) defined between respective radial inlet surfaces of first and second wall members (11, 12), at least one of said first and second wall members being moveable along the turbine axis to vary the size of the inlet passage; an array of vanes (14) extending across the inlet passage, said vanes being connected to said first wall member; a complementary array of vane slots (28) defined by the second wall member, said vane slots configured to receive said vanes to accommodate relative movement between the first and second wall members; the second wall member comprising at least two axially adjacent co-axial plates (29, 30), a first plate (29) defining a first array of openings which overlie a second array of openings defined by a second plate (30) so as to define said array of vane slots, said first plate being fixed to said second plate.

Abstract: A turbocharger with a variable turbine geometry device has one or two blade bearing rings. At least one or more fastening elements are provided for fastening the one or two blade bearing rings. The respective fastening element has at least one section formed with a knurl and/or at least one section formed with at least one or several notches.

Abstract: The invention relates to a device (1) and to a method associated with an assembly mechanism for a rotor system of an axial turbo engine having a central tension anchor, as is particularly known from engine technology. To this end, the invention provides a tensioning tool that pre-tensions or biases the tension anchor prior to and during the insertion of the anchor into the compound rotor assembly. After inserting the biased tension anchor in the compound rotor assembly, the tension anchor is relaxed, whereby the anchor exercises a compressive force on the compound rotor assembly. According to a preferred embodiment, the compound rotor assembly is also biased (compressed) and relaxed after assembling the tension anchor, so that a desired nominal bias Sigmanominal can be particularly easily achieved. The use of a shaft locking nut is no longer necessary in the device according to the invention, thus avoiding the difficulties that are associated with the use of this nut, such as complexity and safety problems.

Abstract: A hydrokinetic turbine system, including a plurality of hydrokinetic turbines is installed on a bed of a body of water. Each turbine has a shroud with a forward entrance portion and rear exit portion. The shroud includes a propeller disposed in a middle portion thereof. An inner surface of the shroud includes a plurality of rifling vanes formed therein to induce water entering the forward entrance portion to rotate in a vortex-like fashion. A plurality of pre-spin guard blades disposed adjacent the forward entrance portion also induce rotation of water and serve to provide a barrier preventing objects from passing into the forward entrance portion. A plurality of stabilizers extending from an exterior surface of the shroud that position the forward entrance portion in the direction of current flow.

Abstract: A rectifier stage of an axial turbine engine compressor is placed directly downstream of the input blower of a turbo-reactor or turboshaft engine compressor. The blade roots of the rectifier stage are housed inside the inner shroud by insertion into respective slots. The blade roots include at least one opening protruding from the slot of the shroud, so as to receive a spiral ring having at least two loops so as to prevent the blade roots from escaping from the respective slots of the inner shroud, and so as to form a connection between the blade roots.

Abstract: A method for operating a wind power plant (WEA) before or during the performance of maintenance work on the wind power plant (WEA). At least one physical condition of the surroundings outside the wind power plant (WEA) induced by wind movement outside the wind power plant (WEA) is detected as an external physical condition. At least one physical condition of a component of the wind power plant (WEA) influenced by wind movement outside the wind power plant (WEA) is detected as an internal physical condition. The at least one external physical condition and/or at least one internal physical condition are evaluated. The at least one external physical condition is compared with a predetermined reference value for the external physical condition. The at least one internal physical condition is compared with a predetermined reference value for the internal physical condition. Depending on the comparison, at least one warning message is generated.

Abstract: A cooling channel (36, 36B) cools an exterior surface (40 or 42) or two opposed exterior surfaces (40 and 42). The channel has a near-wall inner surface (48, 50) with a width (W1). Interior side surfaces (52, 54) may converge to a reduced channel width (W2). The near-wall inner surface (48, 50) may have fins (44) aligned with a coolant flow (22). The fins may highest at mid-width of the near-wall inner surface. A two-sided cooling channel (36) may have two near-wall inner surfaces (48, 50) parallel to two respective exterior surfaces (40, 42), and may have an hourglass shaped transverse sectional profile. The tapered channel width (W1, W2) and the fin height profile (56A, 56B) increases cooling flow (22) into the corners (C) of the channel for more uniform and efficient cooling.

Abstract: The blade for a gas turbine includes a blade airfoil having a leading edge and a trailing edge and extending in the blade longitudinal direction up to a blade tip, and at the blade tip the blade airfoil merges into a shroud segment, wherein on the shroud segment a first rib, projecting upwards, is arranged in the flow direction, extending transversely to the flow direction, and upstream of the first rib, in the region of the leading edge of the blade airfoil, a winglet is formed on the shroud segment for guiding of the hot gas flow in this region. With such a blade, a longer service life is achieved by provision being made for direct cooling of the winglet.

Abstract: A lead-lag damper for a rotor assembly has a body mounted to either an inboard portion of a blade assembly or a fixed portion of the rotor assembly. A piston carried within the body is configured to allow for relative motion between the body and the piston. The piston defines opposing chambers within the body, the chambers being in fluid communication through a fluid passage. A link connects the piston to the other of the inboard portion of the blade assembly and the fixed portion of the rotor assembly, and the link engages a central portion of the piston. The piston acts on fluid in the chambers during relative motion between the piston and the body and causes fluid flow between the chambers through the fluid passage. Flow through the passage acts to damp lead-lag motion of the blade assembly relative to the fixed portion of the rotor assembly.

Abstract: A rotor system is provided wherein coaxial, closely spaced multi-bladed rotors counter-rotate at extremely low RPMs while their pitches are controlled to account for wind gusts and velocity conditions, thereby eliminating many of the deficiencies of conventional helicopters. The embodiments can dramatically decrease the power required to lift a given quantity of weight, even beyond the level required by a typical airplane.

Abstract: A concentrated-mass device including a main oscillating mass held radially in a horizontal plane by main resilient means inside a casing suitable for being secured to the hub is provided. The device includes a secondary main oscillating mass suspended by secondary resilient means inside a recess in said main oscillating mass to oscillate along a vertical axis perpendicular to the horizontal plane, the secondary oscillating mass being constrained to move in translation together with the main oscillating mass in the horizontal plane.

Abstract: The present invention provides systems, devices, and methods for transferring kinetic energy from a working fluid to mechanical energy. The claimed device comprises a housing, at least one fluid inlet, a rotor assembly with a plurality of closely related blades that are positioned to create at least one spiral pathway which is continuous for the length of the rotor assembly, a shaft connected to the rotor assembly, and at least one fluid outlet. The energy is transferred when a working fluid enters the fluid inlet, flows trough the spiral pathway in the rotor assembly's direction of rotation, and exits through the fluid outlet.

Abstract: A blower for a particulate loader and transfer apparatus is provided. The blower comprises at least one blade having a proximal and a distal end. A drive mechanism rotates the at least one blade in a direction about an axis of rotation. The proximal end of the blade is nearer to the axis of rotation than the distal end of the blade is to the axis of rotation and the blade is angled so that as the blade rotates about the axis, the proximal end of the blade precedes the distal end of the blade.

Abstract: A wind turbine blade comprising an aerodynamic fairing supported along at least a portion of its axial length by a spar (12). The spar comprises at least two spar segments (12) joined end-to-end at an interface (9), each spar segment comprising a shear web (3) with a spar cap (4) on each side. The outer face (6) of each spar cap tapers inwardly towards the interface such that its depth is reduced towards the interface creating a recess on each side of the interface formed by the tapered faces of adjacent spar caps. A respective connection piece (8) is sized to fit into each recess. Each connection piece (8) is sized to fit into each recess. Each connection piece (8) being fixed to the tapered faces of adjacent spar caps to form a double scarf joint.

Abstract: Systems are disclosed herein for enhancing the longevity of turbomachine components. Such systems include a turbomachine blade that has a blade portion extending from a base portion. The base portion includes an axial rail configured to extend into an axial groove disposed in a rotor of a turbomachine. The axial rail includes a first locking recess configured to align with a second locking recess along the axial groove. The system also includes a blade locking assembly having a first locking insert and a second locking insert. The first locking insert is configured to be inserted in both the first and second locking recesses. The second locking insert is configured to be inserted in the first or second locking recess adjacent the first locking insert.

Abstract: The present invention relates to enhancing performance of fans and propellers using outsized Gurney flaps. Specifically, the current invention proposes the application of ‘outsized Gurney flaps’ (OGFs) to the trailing-edges of fan blades. According to an exemplary embodiment of the current invention, the Gurney flaps are larger than 10% of the fan blade chord length. Attaching OGFs is not only non-obvious; it seems counterintuitive, because it is akin to placing a large bluff body onto a flow. Preliminary experimental data acquired at Reynolds numbers typically exist during fan operation on idealized blade profiles showed a 100% increase in the generated lift and 40% to 60% increase in aerodynamic efficiency. This translates to significant improvements in fan performance at a given rpm, and/or significant saving in power and noise reduction for the same aerodynamic performance.

Abstract: A diffusion bonded and superplastically formed turbomachine blade, the turbomachine blade comprising: a first layer (4); a second layer (6); and a membrane (2) disposed between the first and second layers (4, 6); wherein the membrane (2) is diffusion bonded to the first layer (4) along a plurality of first strips (10) and the membrane (2) is diffusion bonded to the second layer (6) along a plurality of second strips (12), wherein the first and second strips (10, 12) are offset from one another so that the membrane (2) is bonded to the first and second layers (4, 6) in an alternating pattern; wherein the membrane (2) has a recess (28) which extends into an area between an adjacent pair of first or second strips (10, 12).

Abstract: An approach is provided in which a cooling manager detects a failed fan included in an electronic enclosure. The electronic enclosure includes multiple fans that each cool different component areas in the electronic enclosure. The cooling manager selects an airflow compensator that corresponds to a functioning fan included in the electronic enclosure, which includes a fixed perforated member and a movable perforated member. In turn, the cooling manager adjusts the selected airflow compensator to redirect a portion of airflow generated by the functioning fan to the component area corresponding to the failed fan.

Abstract: A fluid level control mechanism comprising a float assembly, a flow line assembly, an upper centralizer, and a lower centralizer. The float assembly has a cylindrical outer float tube and a cylindrical inner float tube connected by upper and lower end plates to form a sealed cavity. The flow line assembly has a main flow line capable of passing a fluid, a diverter flow line, and a diverter valve. The diverter valve is connected to the lower end plate of the float assembly via a lever arm, such that the float assembly is capable of sliding along the length of the main flow line in response to a fluid level. Downward movement of the float assembly opens the diverter valve and upward movement of the float assembly closes the diverter valve. The upper and lower centralizers center the mechanism within a well bore.

Abstract: A fluid level control mechanism comprising a reservoir assembly, a flow line assembly, and a resilient force assembly. The flow line assembly has a main flow line capable of passing a fluid, a diverter flow line, and a diverter valve. The diverter valve is connected to a lower end plate of the reservoir assembly via a lever arm, such that the reservoir assembly is capable of sliding along the length of the main flow line in response to a fluid level. Downward movement of the reservoir assembly opens the diverter valve and upward movement of the reservoir assembly closes the diverter valve. The resilient force assembly is attached to the main flow line and the reservoir assembly and is capable of exerting a vertical force against the reservoir assembly to close the diverter valve.

Abstract: A pump system selectably and dynamically controls the flow rate of a fluid being delivered to a patient's body over a wide range of flow rates. The pump system includes an infusion tubing, a pumping mechanism, a motor drive assembly in mechanical communication with the pumping mechanism, a user input control, and an electronic controller in electrical communication with and at least partially controlling the motor drive assembly. The electronic controller include a digital signal processing controller in electrical communication with the motor drive assembly that is configured to receive a signal from the user input control and to cause power to be supplied to the motor drive assembly in response at least partially to the signal from the user input control. The pump system may selectably deliver fluid at rates from about 1 milliliter per hour to at least about 3000 milliliters per minute.

Abstract: An apparatus and method for controlling an operation of a compressor are disclosed to enhance a compressor efficiency in each operation mode in operating a compressor in a power mode or power saving mode according to an external load. The apparatus for controlling an operation of a compressor, including: a controller that generates a control signal to select an operation mode of the compressor according to an operation load of the compressor; a compressor motor that includes a main coil and a sub-coil and is driven in one of a plurality of operation modes according to a control signal of the controller; and a power supply unit that applies power via capacitors each having a different capacitance to the sub-coil of the compressor motor according to a control signal of the controller.

Abstract: In a method for conveying at least one heat exchange medium which includes at least one first fluid having a first permittivity and at least one second fluid which does not mix with the first fluid and has a second permittivity that differs from the first permittivity, at least one dielectric boundary surface is formed between the first and the second fluid, which boundary surface is exposed to a progressively excited electric displacement field which exerts a displacement force on the at least one dielectric boundary surface.

Abstract: Methods and systems are provided for pressurizing a transmission hydraulic circuit including a transmission mechanical pump coupled to an engine though a gearbox. One example method comprises, during an engine start, adjusting a speed ratio between the transmission pump and the engine between a first speed ratio and a second speed ratio, the pump rotating faster relative to the engine at the first speed ratio as compared with the second speed ratio. In this way, the pump may be driven at different speed ratios relative to the engine to provide better pressurization in the transmission.

Abstract: A fan assembly for creating an air current includes a bladeless fan assembly including a nozzle and a device for creating an air flow through the nozzle. The nozzle includes an interior passage and a mouth receiving the air flow from the interior passage. A Coanda surface located adjacent the mouth and over which the mouth is arranged to direct the air flow. The fan provides an arrangement producing an air current and a flow of cooling air created without requiring a bladed fan, that is, the air flow is created by a bladeless fan.

Abstract: A differentially pumped vacuum system includes first, second and third chambers, and a pumping arrangement for evacuating the chambers. The pumping arrangement includes a compound pump having a first inlet connected to an outlet from the first chamber, a second inlet connected to an outlet from the second chamber, a first pumping section and a second pumping section downstream from the first pumping section, the sections being arranged such that fluid entering the compound pump from the first inlet passes through the first and second pumping sections and fluid entering the compound pump from the second inlet passes through, of said sections, only the second section. The pumping arrangement further includes a booster pump connected to an outlet from the third chamber, and a backing pump connected to the exhaust from the booster pump. Fluid exhaust from the compound pump can be conveyed to either the booster pump or the backing pump as required.

Abstract: A system includes a detector configured to detect a fog condition within an air flow directed toward a compressor. The system also includes a controller coupled to the detector, wherein the controller is configured to activate a first control measure in response to the fog condition.

Abstract: An integrated-inverter electric compressor whose grounding effect and grounding reliability are increased by reliably grounding an inverter device to a housing and in which the size the inverter device are reduced by simplifying the grounding structure is provided. The integrated-inverter electric compressor includes an inverter device provided in an inverter container on the outer circumference of a housing.

Abstract: A closed type compressor of a low overall height and small vibrations provided with a structure comprising a balancing weight (142) formed of a first balancing weight (146) and a second balancing weight (148) and fixed to eccentric shaft portion (112), the first balancing weight (146) located closer to a main shaft portion (109) than the second balancing weight (148), and the second balancing weight (148) jutting out to a position further from an axis of the eccentric shaft portion (112) than the first balancing weight (146).

Abstract: An electric pump for a vehicle includes a pump body that is divided into a motor room and a pump room, a shaft that is connected to the motor room and the pump room and a sealing unit is interposed therebetween, and an impeller that is mounted on the shaft in the pump room. More specifically, a leachate exhaust passage for exhausting leachate that is leaked through the sealing unit is formed in the pump body, and the leachate exhaust passage is connected to a reaction gas exhaust portion of a fuel cell stack to aide in the exhaust of the leachate accordingly.