Abstract: A clutched device including an actuator and a clutch. The actuator can include a housing and a piston having a first, second, and third face. The first face and the housing can define a first chamber. The second face and the housing can define a second chamber. The second face can have a greater surface area than the first face. The third face and the housing can define a third chamber, isolated from the first and second chambers. A conduit can couple the first and second chambers. A vent can be coupled to the third chamber. A pump can pump fluid from a reservoir to the first chamber. A valve can selectively inhibit fluid communication between the second chamber and the reservoir. A shift element can be coupled to the piston for common translation and can move a clutch member between first and second positions.

Abstract: This application relates generally to a reversible force or torque transfer device. This device may be used in many different applications. The example used for the illustrative purposes of this patent is a wrench. The present invention devises a reverse mechanism that can resist any amount (up to the shear strength of the material) of randomly generated forces that may cause this effect.

Abstract: Embodiments of clutches for electric tools, and related methods, are disclosed herein. An electric tool may include an electric motor, a drive shaft coupled between the electric motor and a cutting instrument, and a clutch coupled between the electric motor and the drive shaft. The clutch may include a motor portion having an exterior surface, a drive shaft portion having an exterior surface and forming a mated assembly when mated with the motor portion, and a spring around the motor and drive shaft portions. The spring may exert a holding force on the mated assembly, such that rotation of the motor portion in a first direction loosens the spring and reduces the friction holding force until a torque between the motor and drive shaft portions exceeds the holding force, causing rotation of the motor portion to be decoupled from rotation of the drive shaft portion.

Abstract: A method and an apparatus for controlling a clutch of a vehicle include determining whether a vehicle is moving under a condition in which a gearshift is coupled to the clutch. A clutch torque is learned in which the clutch is maintained in a micro-slip state by decreasing a target clutch torque for a corresponding gear level when it is determined that the vehicle is moving under the condition in which the gearshift is coupled to the clutch. Learning reliability is calculated by reflecting a difference between an engine torque and clutch torque. The clutch is maintained in the micro-slip state for the clutch torque learning or converting the clutch into a lock-up state, depending on a learning reliability level.

Abstract: A friction lining or structure of a vehicle disk brake, including an absorption body with a mass MT, with a rear plate including hammer-head-shaped projections and friction material, which is fastened to the rear plate, for bearing against a friction ring, and wherein the projections engage in abutments of receiving recesses in a holder profile for the tangentially fixed holding and the axially displaceable guidance, and therefore introduction of a tangentially directed circumferential force (Fu, friction force) into the holder profile induces a tensile stress in at least one projection. An absorption system for suppressing undesirable vibrations is arranged on the friction lining.

Abstract: A method for manufacturing a monoblock-type caliper housing includes: preparing a middle core mold provided with a first and second core-forming portion and a first, second, and third channel; pouring molding sand into the first and second core-forming portions and the first, second, and third channels; heating the middle core mold to form a middle core; forming a salt coating layer on the surfaces of the first, second, and third channel-forming portions of the middle core; putting and heating the middle core in the middle core mold; putting the resultant middle core in a casting mold; pouring molten aluminum in a cavity between the middle core and the casting mold to form a caliper housing; applying ultrasonic waves to the caliper housing to remove the middle core; rinsing the caliper housing; and forming an oil supply hole in the caliper housing.

Abstract: A rotor protection shield for a disc brake system for heavy-duty vehicles includes a flat, radially-extending central wall and a sidewall. The sidewall is integrally formed with and extends radially outwardly from an outer periphery of the central wall. The sidewall is angled axially outboardly relative to a planar surface of the central wall at an angle that is between about forty-five degrees and about seventy-five degrees. The central wall and the sidewall are smooth, and the shield is mounted to a torque plate proximate an inboard surface of the disc brake rotor to protect the rotor from road spray and contaminants.

Abstract: A sensor device for a disc brake has a sensor gearing which can be coupled to at least one encoder, wherein the sensor gearing is arranged in a housing as a planetary gear mechanism and has an input for a first variable, which can be detected by the sensor device and which is associated with wear of the disc brake, and has an input for a second variable, which can be detected by the sensor device and which is associated with an operating movement of the disc brake. The sensor device can be changed over from a first state for detecting the first variable, which is associated with wear of the disc brake, and the second variable, which is associated with an operating movement of the disc brake, to a second state for detecting only the first variable, which is associated with wear of the disc brake.

Abstract: Architected materials with superior energy absorption properties when loaded in compression. In several embodiments such materials are formed from micro-truss structures composed of interpenetrating tubes in a volume between a first surface and a second surface. The stress-strain response of these structures, for compressive loads applied to the two surfaces, is tailored by arranging for some but not all of the tubes to extend to both surfaces, adjusting the number of layers of repeated unit cells in the structure, arranging for the nodes to be offset from alignment along lines normal to the surfaces, or including multiple interlocking micro-truss structures.

Abstract: Generally described, aspects of the disclosed subject matter are directed to through-shaft dampers. In accordance with aspects of the present disclosure, the through-shaft dampers generally include a shaft having a piston traveling within a body, a first chamber for a damping fluid, and a second chamber for a gas. The chambers are separated by a movable wall associated with an insert and configured to provide a volumetric change of the second chamber that is inverse to a volumetric change of the damping fluid. The insert is configured such that the sealing surfaces of the movable wall do not interface the shaft during use of the damper. In this regard, a significant reduction in the total displacement traveled by the seals is realized.

Abstract: A protective sheet enveloping an air suspension module of a vehicle is disclosed. The protective sheet comprises a first edge, a second edge, a third edge, a fourth edge, and a middle portion. The first edge, the second edge, the third edge, and the fourth edge having a pleat with a plurality of incises. The third edge and the fourth edge are in a perpendicular orientation with respect to the first edge and the second edge. The middle portion having a mesh encapsulated within the pleat of the first edge, the second edge, the third edge, and the fourth edge. The protective sheet envelopes around an outer circumferential surface of the air suspension module using fastening means. The plurality of incises provide flexibility for easy installation of the protective sheet over the air suspension module. The protective sheet protects the air suspension module during operation of the vehicle.

Abstract: A link unit includes two first chain plates and an assembling pin. Each of the first chain plates has a first inner end section, a first outer end section misaligned from the first inner end section, and opposite inner and outer side surfaces. The first outer end section of each of the first chain plates is formed with a connecting hole that has a first hole portion, a second hole portion, and a neck portion located between the first and second hole portions. The assembling pin is inserted through the connecting hole of each of the first chain plates, and is prevented from moving past the neck portions of the first chain plates so as to be positioned in the second hole portions of the first chain plates.

Abstract: The methods, systems, and the safety shackle apparatus of this invention provide safety, convenience, and reliability needed for shackle applications providing flexible use (fits multiple size shackles and multiple brands of shackles), stores in shackle pin when not in use, saves time vs traditional moussing techniques, difficult to be installed incorrectly, no tools required, no loose parts or pieces, prevents injury from pokes of sharp wire when moussing, prevents sling damage and chaffing from moussing wire ends, no single use consumables like rope, wire or zip ties (reusable), turns anchor and screw pin shackles into safety shackles, using the device doesn't change rigging practices or techniques, works with old or new shackles, works with bow shackle, anchor shackle, chain shackle, twist shackle, head board shackle, C-D-U shaped shackles, can be used in zero visibility, saves attachment and detachment time over a traditional method, system, or apparatus.

Abstract: The invention relates to a cycloidal planetary gear speed reducer having a central shaft, comprising at least one ring gear disposed so as to be rigidly mounted in a housing, a set of planet gears in mesh with the ring gear, a rotatably supported planet gear carrier, on which the planet gears are mounted, and a plurality of drive plates arranged axially one behind the other in order to drive the planet gears, wherein the drive plates are mounted eccentrically on the central shaft in order to execute a circular translation movement, wherein at any given time during execution of a circular translation movement, the drive plates are in engagement with at least two planet gears.

Abstract: A planetary gear train of an automatic transmission for a vehicle may include an input shaft, an output shaft, first to fourth planetary gear sets and seven friction elements disposed to selectively connect the rotation elements with the rotation element and selectively connect the rotation elements with a transmission housing, and wherein the input shaft is continuously connected to the second rotation element, the output shaft is continuously connected to the eleventh rotation element, the first rotation element is continuously connected to the sixth rotation element, the first rotation element is continuously connected to the eighth rotation element, the third rotation element is continuously connected to the seventh rotation element, the ninth rotation element is continuously connected to the tenth rotation element, and the output shaft is selectively connected with the third rotation element, and wherein three friction elements among seven friction elements are operated at each speed stage.

Abstract: A planetary gear train of an automatic transmission for vehicle may include an input shaft receiving power of an engine, an output shaft outputting shifted power of the engine, a first planetary gear set including a first rotation element, a second rotation element, and a third rotation element, a second planetary gear set including a fourth rotation element, a fifth rotation element, and a sixth rotation element, a third planetary gear set including a seventh rotation element, an eighth rotation element, and a ninth rotation element, a fourth planetary gear set including a tenth rotation element, an eleventh rotation element, and a twelfth rotation element, and six control elements disposed at positions selectively connecting the rotation elements to each other or at positions selectively connecting the rotation elements and a transmission housing.

Abstract: A multiple speed transmission includes an input member, an output member, a plurality of planetary gearsets, a plurality of interconnecting members and a plurality of torque-transmitting mechanisms. The plurality of planetary gear sets includes first, second and ring gears. The input member is continuously interconnected with at least one member of one of the plurality of planetary gear sets, and the output member is continuously interconnected with another member of one of the plurality of planetary gear sets. At least eight forward speeds and one reverse speed are achieved by the selective engagement of the five torque-transmitting mechanisms.

Abstract: The invention relates to a chain guide, respectively a chain tensioner for use in a lubricated sliding system, comprising a surface layer or bearing or comprising a sliding element comprising a surface layer, the surface layer being mainly made of a polymeric material containing a matrix polymer and optionally other components dispersed in said matrix polymer, wherein the matrix polymer consists of a semi-crystalline polyamide (SCPA) having a tensile modulus at 140° C. of at least 800 MPa (measured by the method according to ISO 527-1A). The invention also relates to a power train drive system comprising an engine, a transmission differential and a drive shaft system, a drive chain and a plastic component comprising a sliding element in contact with the lubricated drive chain, wherein the chain guide, the chain tensioner, respectively the sliding element has a coefficient of friction (Co F), measured in lubrication oil at 140° C. at a nominal contact pressure of 1 MPa and a speed of 1 m/s, of at most 0.07.

Abstract: A tensioner comprising a first pivot arm having a first pulley journalled thereto, a second pivot arm having a second pulley journalled thereto, a frustoconical base having a base vertex, a frustoconical pivot shaft having a pivot shaft vertex, the base vertex is oriented opposite the pivot shaft vertex on a common axis, the first pivot arm disposed for pivoting movement about the frustoconical pivot shaft, the second pivot arm disposed for pivoting movement about the frustoconical base, a first bushing damping movement of the first pivot arm on the frustoconical pivot shaft, a second bushing damping movement of the second pivot arm on the frustoconical base, and a spring in compression urging engagement of the first pivot arm with the frustoconical pivot shaft and the second pivot arm with the frustoconical base.

Abstract: An electromechanical front gear changer for a bicycle is provided, the bicycle having a chain, including a base member attachable to the bicycle. A linkage is movably coupled to the base member. A chain guide is movably coupled to the linkage for contacting the chain. A motor is supported by the base member. A gear transmission is driven by the motor to move the linkage. A CPU is provided for controlling the motor and a power supply is supported by the base member to power the motor and the CPU.

Abstract: An electric power generating device (1) capable of suppressing an increase of a frontal surface area of an aircraft engine includes a transmission (22) connected with a rotary shaft (9) of the engine (E), an electric power generator (34) driven by an output of the transmission (22), an input shaft (27) having a shaft axis extending in a direction crossing the rotary shaft (9) and connected with the rotary shaft (9), and a transmitting mechanism (21) connected with the input shaft (27) to drive the transmission (22) about an axis extending in a direction perpendicular to the input shaft (27). The transmission (22) and the electric power generator (34) are disposed spaced a distance from each other in a direction circumferentially of the rotary shaft (9).

Abstract: An electric linear actuator has a housing, an electric motor, a speed reduction mechanism and a ball screw mechanism. The ball screw mechanism has a nut and screw shaft. A blind bore is formed on the housing. The blind bore contains an end of the screw shaft. An anti-rotation mechanism for the screw shaft has a sleeve and guide pin. The sleeve is press-formed from steel sheet and fit into the blind bore of the housing. The guide pin is mounted on the end of the screw shaft, via a through aperture formed in the screw shaft. The guide pin axially movably engages the sleeve.

Abstract: A rod rotator has a crankshaft with non-aligned crank journals, a first actuating pawl attached to the first crank journal and a second actuating pawl attached to the second crank journal, and a ratchet wheel connected to a polished rod. The first actuating pawl pushes on the ratchet wheel to rotate the ratchet wheel while the second actuating pawl pulls on the ratchet wheel to rotate the ratchet wheel at the same time.

Abstract: A drive train device for a motor vehicle is disclosed. The drive train device has at least one component which is included for the purpose of transmitting a torque, and at least one cast-in element which is partially cast into the component, which is included for the purpose of transmitting the torque, where the component and the cast-in element are made of different materials. The drive train device has a sealing device which is included for the purpose of sealing a junction between the component and the cast-in element.

Abstract: A transmission mechanism of an all-terrain vehicle is provided, which includes an independent suspension axle. The independent suspension axle includes a left driving half-axle and a right driving half-axle. A jaw differential is provided at a joint of the left driving half-axle and the right driving half-axle and is configured to allow half-axles at two sides to rotate at different speeds when the axle of the all-terrain vehicle transmits power to the half-axles at the two sides, and prevent a wheel at one side from slipping. For the all-terrain vehicle adopting the jaw differential, side tipping, side slipping, and tire scuffing are not apt to occur, thus the vehicle may get rid of stuck conditions such as slipping, and the working reliability of the all-terrain vehicle is improved. An all-terrain vehicle adopting the transmission mechanism is further provided.

Abstract: A forcipate gear open-close mechanism comprises a circular base spliced by two parts, an annular gear spliced by two parts, and an open-close device for driving the circular base and the annular gear to open or close. An annular guide rail formed by splicing is arranged on the circular base; the annular gear is mounted on the annular guide rail; and a power transmission device drives the annular gear to rotate along the annular guide rail. The annular gear and the circular ring-shaped base are each spliced by two parts; therefore, the gear mechanism can be clamped on an iron core conveniently, and a coil can be wound on a three-dimensional iron core conveniently. Moreover, the gear mechanism can not only be clamped on an iron core, but also be clamped on a columnar iron core.

Abstract: Provided a transmission including a first shaft, a second shaft connected thereto via a shift gear mechanism provided to a first shaft and generating a rotary output corresponding to a selected shift gear, a planetary gear mechanism, a transmission case for housing the planetary gear mechanism and a mounting member for fixing a ring gear of the planetary gear mechanism to the case. To the mounting member, an abutment support portion is formed for supporting the case by abutting to an inter-shaft portion positioned between the first shaft and the second shaft in the case.

Abstract: A gearbox vent apparatus includes: a gearbox; an accessory contained in a case mounted to the gearbox such than an interior space of the case communicates with an interior space of the gearbox, wherein the case includes a sidewall and an endwall, a hollow drive shaft mounted for rotation inside the case; an annular first seal element mounted to the drive shaft; an annular second seal element mounted to the case and contacting the first seal element so as to define a sealing interface; and a vent tube having a forward end coupled to the endwall in fluid communication with the drive shaft.

Abstract: An anti-siphon arrangement for a hydraulic system with a reservoir includes first and second flow paths providing hydraulic communication between the reservoir and a lower area. Each flow path includes an anti-siphon portion extending at least partly above a fluid level of the reservoir. First and second valves are configured, when configured in open states, to allow gas to flow from a gas source to the anti-siphon portions of the first and second flow paths, respectively.

Abstract: A motor vehicle differential including a housing holding a differential mechanism including a ring gear attached to a cage of planetary gears, the housing including a first half-housing that is configured to accommodate the cage of gears and at least a part of the ring gear, and a second half-housing closing the first half-housing, the first half-housing including a chamber that accommodates at least a part of the ring gear, and that includes at least a main transverse wall adjacent to a transverse face of the ring gear. The first half-housing includes a mechanism recovering the oil splashed onto the wall and a mechanism redirecting the recovered oil to the cage of planetary gears.

Abstract: An electronic gear shifter is described herein that provides tactile feedback imitating the tactile feedback generated by a manual transmission shifter. The shifter includes a tactile feedback mechanism having a base, a pivot through the base, one or more springs coupled to the base, and first and second detents. The base rotates about the pivot, whereas the springs resist rotations of the base from, and return the base to, and equilibrium position. The first detent resists rotation of the base from the equilibrium position. The second detent resists further rotation of the base past the first detent and away from the equilibrium position. Rotation of the base past the first and second detents imitates manual transmission tactile feedback, and rotation of the base past the second detent also closes one or more of the electronic switches.

Abstract: A transmission device with a hydraulic system includes a pump device, a primary pressure circuit, and at least one additional pressure circuit supplied with hydraulic fluid by the pump device. The pump device is coupled to and driven by a transmission input shaft. A first pump unit of the pump device is connected to and driven by the transmission input shaft. A second pump unit of the pump device is connected to and driven by a transmission output shaft. A pressure side of the first pump unit is connected to the primary pressure circuit, and is connectable to the additional pressure circuit, while a pressure side of the second pump unit is connected to the additional pressure circuit, and is able to be coupled with the primary pressure circuit.

Abstract: A system and method of controlling the operation of a transmission using fuel consumption data. The system and method includes controlling the operation of a vehicle transmission which is operatively connected to an engine having operating characteristics and operatively connected to a transmission control module having access to a memory. Fuel consumption data for an engine is converted to engine efficiency loss data representative of the engine operating. A set of polynomials is determined to provide a pattern representative of the operating characteristics the engine. A transmission controller using the pattern determines a prospective operating condition of the transmission to provide fuel efficient operation of the engine.

Abstract: A control device for a vehicle includes an electronic control unit. The electronic control unit is configured to limit a second hydraulic pressure so that a switching valve is switched to a normal position when the following conditions i) and ii) are satisfied. The condition i) is during partial failure in which a normally closed solenoid valve is de-energized. The condition ii) is when the switching valve is switched to a failure position due to the second hydraulic pressure and downshift to a specific gear shift stage not corresponding to a current gear shift stage occurs.

Abstract: A hydraulic control device has: a modulator valve using oil pressure from a hydraulic source for adjusting a modulator pressure; driving and driven-side hydraulic actuator control valves controlling hydraulic oil from the source to driving and driven-side hydraulic actuators; a driving-side control oil pressure adjusting electromagnetic valve using the modulator pressure for outputting a control oil pressure controlling the driving-side control valve; and a driven-side control oil pressure adjusting electromagnetic valve for outputting a control oil pressure controlling the driven-side control valve, the hydraulic control device including a failsafe valve switched from a normal to a failure position based on a failure disabling electric control for the driving-side and driven-side electromagnetic valves, the modulator valve making the modulator pressure lower than a value at the normal position based on an output switching pressure generated due to switching the failsafe valve from the normal to the failure p

Abstract: A vehicular shift operation apparatus that includes a manual transmission including an input-side sub-transmission and an output-side sub-transmission, and that is capable of preventing overrun or underrun due to erroneous shift operation, is provided. The vehicular shift operation apparatus includes a manual transmission including an input-side sub-transmission and an output-side sub-transmission, and includes: a main shaft rotation speed sensor that detects a main shaft rotation speed, a sensor that detects a position of a clutch pedal, and a controller. The controller has a function of detecting a gear stage at a control cycle (current gear stage) and a function of determining whether the detected gear stage is correct or not.

Abstract: An actuating device for the selection and/or actuation of a gear ratio of a motor vehicle transmission and for engaging and/or disengaging a motor vehicle clutch, having a drive motor which drives a drive shaft that is connectible non-rotatingly to a gear selector drum of a transmission actuating device to move and/or rotate the gear selector drum, the gear selector drum also being connected to a transmission, and having a clutch actuating device which controls a release bearing of a clutch, wherein a master cylinder of the clutch actuating device, which is connected hydraulically to a slave cylinder that moves the release bearing, is actuatable depending on the position of the drive shaft, wherein an actuating segment which protrudes in the radial direction from the drive shaft is connected non-rotatingly to the drive shaft and the actuating segment actuates the master cylinder when the drive shaft is rotated in at least one direction of rotation, as well as to a drivetrain having such an actuating device is

Abstract: A hydraulic pressure supply apparatus, capable of quickly supplying hydraulic pressure to a power transmission apparatus and extending the service life of an accumulator for supplying hydraulic pressure to the power transmission apparatus, includes an oil pump which uses an internal combustion engine as a motive power source and is connected to the power transmission apparatus via an oil passage, for supplying operating hydraulic pressure to the power transmission apparatus, an accumulator connected to the oil passage and capable of accumulating hydraulic pressure, and a switching valve capable of effecting communication between the accumulator and the oil passage by opening during operation of the engine and cutting off the communication therebetween by closing during automatic stop of the engine. When it is determined that the engine is under manual stop caused by turn-off of an ignition switch of a vehicle, manual stop-time control for opening the switching valve is performed.

Abstract: A continuously variable transmission (CVT) includes an input member, an output member, a variator assembly having a primary variator pulley operable for receiving an input torque via the input member, a secondary variator pulley operable for transmitting an output torque via the output member, and an endless rotatable drive element in frictional engagement with the primary and secondary variator pulleys, first and second speed sensors operable for measuring a respective rotational speed of the primary and secondary variator pulleys, and a controller. The controller executes a method to detect gross slip of the endless rotatable drive element with respect to the primary and secondary variator pulleys using the measured rotational speeds, and in response to the detected gross slip, to request a reduction in the input torque by a calculated amount over a calibrated duration until a level of the detected gross slip reaches a calibrated slip level.

Abstract: A sliding element for an internal combustion engine may include a ferrous material base defining a plurality of surfaces. A binding nickel layer may be applied across all of the surfaces of the base. A deposited layer may be disposed on the binding layer. The deposited layer may include a metallic tungsten matrix and a tungsten carbide. The deposited layer may be provided with a thickness between 5 and 150 microns.

Abstract: An insulation gasket that includes a metal core (100) defining an inner serrated annular section (105) that is radially spaced from an outer serrated annular section (110); and an annular groove (115) formed between the inner and outer serrated annular sections; and a first material (135) accommodated in the annular groove (115). In certain embodiments, a second material (125) engages the inner serrated annular section (105); and a third material (130) engages the outer serrated annular section. In one embodiment, the first and second materials comprise an electrical insulation material and the third material comprises a fire safe material.

Abstract: The disclosure relates to a seal inserted between two elements having different coefficients of thermal expansion, the seal includes a first and a second metallic contact portion spaced along an axial stacking direction orthogonal with respect to a radial direction. Tight connection means between the first and second contact portions allow a relative movement between the first and second contact portions along the radial direction. A first and a second sliding part are respectively coupled in translation along the radial direction with the first and second contact portions and are stacked so as to be able to slide in relation to each other along the radial direction.

Abstract: A scroll compressor is provided that may include a casing, a discharge cover fixed inside of the casing, a first scroll revolved a rotational shaft, a second scroll provided on the first scroll to define compression chambers, the second scroll having an intermediate pressure discharge hole that communicates with a compression chamber of the compression chambers having an intermediate pressure, a back pressure plate provided on the second scroll and having an intermediate pressure suction hole that communicates with the intermediate pressure discharge hole, a floating plate movably provided at a side of the back pressure plate and defining a back pressure chamber, and a sealing member provided between the back pressure plate and the floating plate, the sealing member including a sealing body, and at least one protrusion provided at an incline with respect to a central line that extends in a horizontal direction of the sealing body.

Abstract: A seal support system for a mechanical seal includes a system vessel for containing barrier fluid. Closed loop pipe work connects the vessel to a mechanical seal with a device provided for feeding barrier fluid to the system vessel. A further vessel is provided that is able to be in fluid communication with the system vessel. The further vessel may be provided with an elastomeric membrane, which may be filled with a gas under pressure to an extent required to allow for the effect of the highest anticipated temperature which might occur in a particular application.

Abstract: A piston slide valve including a valve housing, a piston slide mounted movably in the valve housing, which is reciprocally movable in the valve housing and configured to manipulate a fluid flow, and a valve drive. The valve drive includes a rotatable drive shaft, which is mechanically connected to the piston slide via a mechanical coupling. The mechanical coupling includes an actuating element which is eccentrically mounted on the rotatable drive shaft and which engages with a coupling piece that is attached to a radial outside of the piston slide, wherein either the actuating element has a spherical outer surface, which engages into said cylindrical opening of said coupling piece, or the coupling piece has an outer surface, which engages into a cylindrical opening of the actuating element.

Abstract: A check valve comprises a valve body defining a valve opening and a pair of valve elements mounted so as to be movable from a closed position in which they close the valve opening to prevent fluid flow through the opening to an open position in which they permit fluid flow through the opening. The valve further comprises a one piece bridge element having first and second end portions mounted to the valve housing on opposite sides of the valve opening and an intermediate portion extending between the end portions. The intermediate portion acts as a stop for the valve elements in their open position. A shaft mounting the valve elements for pivotal movement between their open and closed positions, is supported in the end portions of the bridge element. Fasteners for attaching the bridge element to the valve housing overlap the ends of the valve shaft thereby retaining it in the bridge element.

Abstract: A system including a flow control system, including a flow control mechanism configured to control a flow of fluid through a fluid passage, a rack and pinion system coupled to the flow control mechanism and configured to transfer motion from an actuator to the flow control mechanism, a biasing element coupled to the rack and pinion system, wherein the biasing element is configured to store potential energy as the flow control mechanism transitions from a closed position to an open position or an open position to a closed position, and a failsafe device configured to release the potential energy stored in the biasing element to open or close the flow control mechanism.

Abstract: A system and method are disclosed for shutting off the flow of liquid to a hydrant. A break away frangible activator of a valve body becomes dislodged responsive to a hydrant receiving sufficient inadvertent impact. A valve member closes in response to the impact to close off the flow of fluid to the hydrant.

Abstract: A sanitary hydrant comprises an isolated reservoir that can be positioned below a freeze level at the location of installation. A piston within the isolated reservoir is operable to expel, during a downward stroke, stored fluid from the reservoir before actuating a valve that allows fluid to flow from a fluid supply source through the hydrant. On an upward stroke, the piston releases the valve and generates a negative pressure within the reservoir that draws fluid from within the hydrant into the reservoir.

Abstract: An aviation bypass valve for use in a heat exchanger apparatus, including a shape memory alloy material. The heat exchanger apparatus further including an air-cooled oil cooler disposed in a bypass fan duct of an aircraft engine. The heat exchanger apparatus including a bypass valve in fluid communication with the air cooled oil cooler. The bypass valve including a valve body, a piston disposed in the valve body and moveable therein and an actuation component. The actuation component including a shape memory alloy. The actuation component responsive to a change in at least one of a thermal condition and a pressure exerted thereon so as to move the piston, thereby opening and closing the bypass valve.