Abstract: A high-pressure fuel pump capable of reducing the number of components and decreasing the manufacturing cost by processing of a pump body is provided. The high-pressure fuel pump includes a metal damper, a pump body in which a damper housing that houses the metal damper is formed, a damper cover attached to the pump body, covering the damper housing, and holding the metal damper between the pump body and the damper cover, and a holding member fixed to the damper cover and holding the metal damper from a side opposite to the damper cover. The holding member is provided with an elastic portion that urges the pump body so that the metal damper is urged toward the damper cover.

Abstract: The present invention relates to a reciprocating compressor able to operate with two separate pressure suction lines provided with a suction valves arrangement and, more particularly, to a suction valves arrangement whose suction valves have different thicknesses. In particular, at least one semi-commanded suction valve has a thickness greater than the thickness of at least one automatic suction valve. The present invention belongs to the field of fluid compressors.

Abstract: A linear compressor and a refrigerator including a linear compressor are provided. The linear compressor may include a compressor casing connected to each of a suction inlet, through which a refrigerant may be introduced, and a discharge outlet, through which the refrigerant may be discharged, a compressor body mounted within the compressor casing, within which the refrigerant suctioned in through the suction inlet may be compressed due to a linear reciprocating motion of a piston in an axial direction of the compressor casing and discharged into the discharge outlet, and at least one plate spring disposed on each end of the compressor body in the axial direction.

Abstract: A membrane pump includes a pump body having a working chamber and a head having a distribution chamber. The pump body and the head delimit a pumping chamber formed between a terminal wall of the pump body and a terminal wall of the head. At least one membrane in the pumping chamber is configured to separate the working chamber from the distribution chamber. The membrane is shaped to be moved by a fluid contained in the working chamber, from a suction configuration to a delivery configuration within the working chamber. The pump additionally includes a sealing device coupleable to the membrane that is shaped to define a first interspace between the terminal wall of the pump body and the membrane at the suction configuration of the membrane and/or may be shaped to define a second interspace between the terminal wall of the head and the membrane at the delivery configuration.

Abstract: A method for pumping a fluid includes providing a peristaltic pump including a contact wall, a movable compression element, and a flexible tube. The movable compression element opposes the contact wall. The contact wall and the compression element define a compressing region therebetween. The flexible tube is interposed between the contact wall and the compression element in the compressing region. The flexible tube has a tube lengthwise axis and inner and outer opposed wall surfaces. The inner wall surface defines a through passage to receive the fluid. The flexible tube is displaceable relative to the compressing region between a first position and a second position different from the first position.

Abstract: A pump assisted chemical feeder for the treatment of pressurized water systems. There are various methods to dispense chemicals into pressurized water systems, including typical configurations of venturis, slug feeders, and electronic metering pumps. The described invention includes the use of adjustable bypass loops, pumps, and pressure differentials, to provide a reliable and adjustable means of introducing chemicals into a pressurized water system.

Abstract: A pump includes a collar, a cylinder and an elastic valve. The collar includes a wall, a tubular insert extending in the wall, and a connective portion formed between the wall and the tubular insert. The cylinder includes first and second open ends, first and second chambers respectively in communication with the first and second open ends, and a neck in communication with the first and second chambers. The elastic valve includes a ring, a plug extending in the ring, and elastic strips formed between the plug and the ring so that the plug is movable relative to the ring. The tubular insert is inserted in the first chamber via the first open end when the cylinder is connected to the wall, and the plug normally blocks the neck to form a first check valve when the elastic valve is connected to the second chamber.

Abstract: A fluid end of a pump includes a body that defines a suction bore, a discharge bore, and a plunger bore. A first central longitudinal axis extends through the suction bore, the discharge bore, or both. A second central longitudinal axis extends through the plunger bore. A chamber is defined at an intersection between the suction bore, the discharge bore, and the plunger bore. An interior surface of the body that at least partially defines the chamber comprises a first wall portion that is at least partially planar and oriented at an angle that is less than or equal to 15° from perpendicular to the first central longitudinal axis.

Abstract: A gear pump having a suction port, first and second discharge ports, an inner rotor having external teeth, an outer rotor having internal teeth such that the number of the internal teeth is larger than that of the external teeth of the inner rotor, and inter-tooth chambers defined by the external teeth and the internal teeth. The first and second discharge ports are in communication with the inter-tooth chamber whose volume is decreased along with rotation of the inner rotor etc. An inter-tooth chamber which has been brought out of communication with the second discharge port is brought into communication with the suction port while the volume is decreasing. The volume of the inter-tooth chamber which has been brought out of communication with the second discharge port is increased after at least a part of the inter-tooth chamber has been brought into communication with the suction port.

Abstract: A lightweight gear pump easy to manufacture, having a reduced manufacturing cost, while giving sufficient performances. It consists of: A gear, three metal plates, placed on each other, an intermediate plate of which including an eight-shaped cavity adapted to house the gear, and two peripheral plates having the function of enclosing the gear in the cavity, a circuit for fluid supply to the gear, centering means to align the three plates above each other, the three metal plates being provided with centering holes in the axial direction, adapted to receive the centering means, the device according to the invention is particularly intended for liquid transfer applications for automobiles or heavy trucks.

Abstract: Screw compressor with a compression chamber that is formed by a compression housing, in which a pair of meshed helical compressor rotors in the form of a screw are rotatably mounted and with a drive motor that is provided with a motor chamber formed by a motor housing, in which a motor shaft is rotatably mounted. The motor shaft drives at least one of the aforementioned two compressor rotors, where the compression housing and the motor housing are connected directly together to form a compressor housing, where the motor chamber and the compression chamber are not sealed off from one another and where the rotor shafts of the compressor rotors, as well as the motor shaft, extend along axial directions that are oblique or transverse to the horizontal plane.

Abstract: A pump having at least two fluid drivers and a method of delivering fluid from an inlet of the pump to an outlet of the pump using the at least two fluid drivers. Each of the fluid drives includes a prime mover and a fluid displacement member. The prime mover drives the fluid displacement member to transfer fluid. The fluid drivers are independently operated. However, the fluid drivers are operated such that contact between the fluid drivers is synchronized. That is, operation of the fluid drivers is synchronized such that the fluid displacement member in each fluid driver makes contact with another fluid displacement member. The contact can include at least one contact point, contact line, or contact area.

Abstract: A scroll compressor includes: a frame configured to support a second scroll by being coupled to a first scroll; a sealing member insertion groove formed in a ring shape, on at least one of one side surface of the second scroll and one side surface of the frame contacting the second scroll; and a sealing member formed in a ring shape, inserted into the sealing member insertion groove, and configured to divide an interval between the second scroll and the frame in a radial direction, wherein the sealing member is formed such that a sectional surface of an inner circumferential surface thereof is smaller than that of an outer circumferential surface thereof, and such that a second gap between the outer circumferential surface of the sealing member and an outer side wall surface of the sealing member insertion groove is smaller than or equal to a first gap between the inner circumferential surface of the sealing member and an inner side wall surface of the sealing member insertion groove.

Abstract: A compressed air system may comprise an air compressor configured to generate compressed air, a reservoir configured to store the compressed air, a reservoir pressure sensor configured to monitor an actual reservoir pressure of the compressed air stored in the reservoir, an outlet valve configured to regulate a flow of the compressed air out of the reservoir, and an outlet electronic actuator configured to adjust a position of the outlet valve. The compressed air system may further comprise an electronic control module (ECM) configured to transmit a command to the outlet electronic actuator to cause the outlet electronic actuator to open the outlet valve when the actual reservoir pressure is above a target reservoir pressure, and transmit a command to the electronic actuator to cause the electronic actuator to close the outlet valve when the actual reservoir pressure is below the target reservoir pressure.

Abstract: A compressor unit includes a compressor, an electric motor which is lined with the compressor along the horizontal direction and drives the compressor, and a sound shielding member which reduces noise generated by the compressor. The sound shielding member has a shape of surrounding the compressor on a first side, a second side and a third side of the compressor and exposing the electric motor, the first and second sides being in a depth direction perpendicular to a lined direction in which the compressor and the electric motor are lined, and the third side being opposite to another side of the compressor where the electric motor is located in the lined direction.

Abstract: A device for moving a fluid with magnetic gear includes two first balls each having a shape of sphere, respectively fixed to a rotating first shaft through respective centers of the sphere, each of the first balls having a first magnetic dipole in a direction orthogonal to the first shaft; and a second ball having a shape of sphere attaching a blade structure thereon to move the fluid, fixed to a freely rotatable second shaft through a center of the sphere, and having a second magnetic dipole in a direction orthogonal to the second shaft, wherein the centers of the first and second balls altogether form an isosceles triangle with a vertex angle ? being defined about the center of the second ball, satisfying ? = 2 ? arcsin ? ( 1 3 ) ? 70.53 ? ° .

Abstract: An electrical submersible pump assembly has modules including a pump, at least one motor, and a pressure equalizer coupled to the motor. First and second ones of the modules have a threaded connection including a first adapter having threads. A second adapter mounted to the second module has a tubular body, a neck of smaller diameter than the body, an external shoulder at a base of the neck, a rim on the neck, and an external groove between the external shoulder and the rim. A collar is rotatably carried and axially movable on the neck, the collar being in threaded engagement with the threads of the first adapter, the collar having an internal groove. A split shoulder ring carried partly in the external groove and partly in the internal groove retains the collar on the neck and is biased into one of the grooves.

Abstract: A pump assembly is fluidly coupled to a vehicle engine for moving a fluid. The pump assembly includes a pump housing and an impeller disposed in the pump housing for moving the fluid in the pump housing towards an outlet. Additionally, the pump assembly includes a valve assembly integrated with the pump housing. The valve assembly includes a barrel disposed in the pump housing and having at least one inlet, wherein the at least one inlet is configured to provide controlled flow of the fluid into the pump housing. A sleeve is rotatably coupled to the barrel for selectively controlling the flow of the fluid into the at least one inlet of the barrel. Additionally, the valve assembly includes an actuator assembly operably coupled to the sleeve and configured to rotate the sleeve between a first position and a second position.

Abstract: A centrifugal pump with adaptive pump stages includes an impeller configured to provide kinetic energy to fluid flow through the pump. The impeller has multiple geometric dimensions. The pump includes a diffuser connected to the impeller that is configured to convert the kinetic energy provided by the impeller into static pressure energy to flow the fluid through the pump. The pump includes an adaptive material attached to the impeller that is configured to modify, during operation of the pump, a geometric dimension to modify fluid flow through the pump.

Abstract: The present disclosure provides a multi-piece containment canister assembly for use in magnetically coupled fluid handling devices such as rotary pumps, mixers, flowmeters or valves. The canister assembly includes a generally tubular single-piece body and an end cap that are sealingly fastened together to form a generally cup-shaped canister. The canister body may be made of strong, non-conductive or low conductive materials, such that it greatly reduces eddy currents. The generally tubular shape of the canister body is easier, and therefore less costly to manufacture than typical cup-shaped canisters.

Abstract: A reverse flow gas turbine engine has a low pressure (LP) spool and a high pressure (HP) spool arranged sequentially in an axial direction. The LP spool comprises an LP compressor disposed forward of an LP turbine and drivingly connected thereto via an LP compressor gear train. The HP spool comprises an HP compressor in flow communication with the LP compressor, and an HP turbine disposed forward of the HP compressor and drivingly connected thereto via an HP shaft.

Abstract: A motor comprising a frame for supporting a rotor assembly and a stator assembly, the frame comprising an inner wall and an outer wall and a plurality of diffuser vanes extending between the inner wall and outer wall; a rotor assembly comprising a shaft, a magnet, a bearing assembly and an impeller; and a stator assembly comprising a bobbin, a stator core and a winding wound round the bobbin; the impeller comprising a metal hub and an outer portion, the outer portion comprising a plurality of blades and being formed of plastic or carbon fibre composite.

Abstract: A blade mounting assembly is used to produce a completed windmill ceiling fan having fan blades that extend out from a fan motor body that rotates about a motor shaft. The blades are mounted using an inner and outer support ring. The inner support ring includes a series of blade receiving pockets. The outer support ring is initially shipped as a series of separable segments which are subsequently locked together to form the complete ring. Each of the outer ring segments also carries a gusset which receives a portion of a fan blade for further supporting the fan blade.

Abstract: A combined bearing for a turbomachine is disclosed. The combined bearing comprises in combination: a radial bearing member, a thrust bearing member and a bearing-fluid impeller of a bearing-fluid boosting pump in fluid communication with the thrust bearing member and the radial bearing member.

Abstract: The present invention provides a cooling system. The system comprises a circumferential edge forming an aperture and an axial fan arranged at least partly within the aperture. The axial fan comprises a hub being adapted for rotation about an axis and carrying a plurality of blades. Each blade extends in a radial direction between a root end and a tip end, where the root end is joined with the hub. The system further comprises brushes extending from the tip end towards the circumferential edge, where the brushes at a first end are attached to at least one of the blades at a point of attachment at a distance from the tip end. The brushes overlap the blade from the attachment point to the tip end along the length of the brushes at a pressure side or suction side of the blade.

Abstract: A rotary part for a pump and related systems and methods are provided. The rotary part can be rotated in a forward direction about a rotation axis X-X and may include shroud(s) and expelling vane(s). The expelling vane(s) may have a leading side facing in the forward direction characterised in that the leading side includes a forwardly inclined section which is inclined forwardly.

Abstract: A rotor assembly that includes a shaft and an impeller and/or a rotor core. The shaft is secured within a bore in the impeller and/or the rotor core by an adhesive such that the concentricity of the shaft is smaller than that of the bore. A method of manufacturing the rotor assembly is also described.

Abstract: A rotary machine includes an impeller which is attached to one end portion in an axial direction of a rotating shaft; and a bearing which is attached to the rotating shaft on a rear surface side of the impeller. The impeller includes a cylindrical boss portion, a hub portion, and a blade portion. A rear surface of the hub portion is provided with a recessed portion recessed toward the one end side from an end edge on the rear surface side of the hub portion in the axial direction. The other end in the axial direction of the boss portion is disposed inside the recessed portion, and an end surface on the one end side of the bearing is disposed inside the recessed portion.

Abstract: A wellbore pump that includes a pump housing, a pump stage positioned within the pump housing, the pump stage including a stationary diffuser and a rotating impeller positioned within the diffuser, a pump head attached to the first end of the pump housing, a compression tube attached between the pump head and the diffuser, the compression tube increasing a contacting force to prevent rotation of the diffuser with the impeller, and a ring-shaped memory material positioned around the diffuser, the memory material capable of reversibly expanding from a temporary state to a permanent state in response to wellbore operating conditions to form an interference fit with an inner surface of the pump housing during operation of the wellbore pump under the wellbore operating conditions.

Abstract: A radial compressor (10), with a compressor rotor having moving blades and with a compressor housing (11) accommodating an insert piece (12) and a diffuser (13), in which the insert piece (12) delimits a flow duct leading to the moving blades of the rotor and the diffuser (13) a flow duct leading away from the moving blades of the rotor at least in sections, and in which the diffuser (13) is designed as bladeless diffuser and as an integral part of the insert piece (12).

Abstract: A vane diffuser for diffusing gases is disclosed. The diffuser has an annular diffuser body including a plurality of diffuser vanes defining diffuser passages. The diffuser passages are circumferentially distributed. A direction of main gas flow through the diffuser passages is defined from a passage inlet in fluid communication with the outlet of the compressor to a passage outlet. A plurality of fluid injection conduits each extend between a conduit inlet and a conduit outlet for at least one of the diffuser vanes. The conduit outlet defines at least one opening in at least one of the pressure and suction side surfaces and is configured to inject fluid along one of the pressure and suction side surfaces in the direction of main gas flow through the corresponding diffuser passage.

Abstract: A centrifugal compressor that reduces pressure loss of fluid blown out from an impeller to improve efficiency is provided. The centrifugal compressor includes: a rotary shaft 5 rotatably supported by a casing 2; an impeller 6 provided on the rotary shaft 5 for blowing out fluid sucked from a suction port 10 in a radial direction of the rotary shaft 5; a return channel 13 for reversing the fluid blown out from the impeller 6 toward an axis line L of the rotary shaft 5; and a discharge port 16 positioned on the axis line L of the rotary shaft 5 for discharging the fluid having passed through the return channel 13 in a direction along the axis line L.

Abstract: A blower device includes a motor that includes a shaft centered around a central axis extending in a vertical direction, a stator surrounding the shaft, and a housing holding the stator, an impeller that is connected to an upper side of the shaft, an impeller housing that accommodates the impeller and includes an intake port, and an exhaust port that is positioned below a circumferential edge portion of the impeller housing. The exhaust port is positioned above the housing and opens downwards along a circumferential direction.

Abstract: A return flow channel formation part that comprises a casing (28) and a plurality of return vanes (38). The casing (28) comprises a return bend part (36) and a return flow channel (33) that has a straight flow channel (37). The straight flow channel (37) includes a hub side wall surface (W1), a shroud side wall surface (W2), and an intermediate intake port (41) that is formed in one radial-direction portion of the shroud side wall surface (W2). The angle of inclination of the hub side wall surface (W1) and/or the shroud side wall surface (W2) with respect to the radial direction in a cross-section that includes an axis line (Ar) changes at the intermediate intake port (41).

Abstract: A seal spacer for a gas turbine engine to provide sealing between a casing wall and a stator vane of the engine. The seal spacer comprises a circumferential body having a slot defined therethrough and configured to receive the stator vane therein. The circumferential body is configured to be disposed between and space apart the engine casing wall from a head of the stator vane when the vane is inserted in the slot and the vane is inserted in the opening in the casing wall. The circumferential body includes a support positioned to be engage and provide a gap between the casing wall and the head when the seal spacer is installed therebetween, and an elastomeric seal portion positioned to engage and compressingly provide sealing the casing wall and the head when the seal spacer is installed therebetween to seal the gap.

Abstract: A gas turbine engine comprises a compressor, an inner casing and a turbine arranged to drive the compressor via a shaft. The compressor comprises a rotor and a stage of compressor outlet guide vanes. The stage of vanes comprises a plurality of vanes extending radially between inner and outer annular walls. The rotor has a stub shaft and the shaft is joined to the stub shaft at a welded joint. The inner casing surrounds the shaft and stub shaft to define an annular chamber and an annular bleed duct is defined between the upstream end of the wall of the stage of vanes and the downstream end of the compressor rotor. The upstream end of the wall of the stage of vanes has a concave surface between its radially inner and radially outer ends to produce a counter clockwise flow of air over the welded joint.

Abstract: The present invention relates to a direct drive-type turbo blower cooling structure, and more particularly, to a direct drive-type turbo blower which includes a plurality of holes for cooling a stator along an outer diameter of a motor casing and a plurality of holes for cooling a coil part, a bearing housing, and a rotor to enhance cooling efficiency through the plurality of holes during operation of a cooling fan, thereby providing thermal balance.

Abstract: An inner cylinder inside an outer cylinder is disposed to be coaxial to an air pressure supply rod inside the inner cylinder. A first piston is disposed between the air pressure supply rod and the inner cylinder, a pneumatic chamber is disposed on a side of one surface (hydraulic surface) of the first piston in the inner cylinder, and a first hydraulic chamber is disposed on a side of the other surface. A second piston is disposed between the outer cylinder and the inner cylinder, and a second hydraulic chamber is disposed on a side of a surface of the second piston which is provided in the same direction as the hydraulic surface of the first piston in both of the cylinders. The inner cylinder is provided with a communication hole for transmitting a negative pressure along with movement of oil with which the first hydraulic chamber and the second hydraulic chamber are filled. In this configuration, it is possible to shorten an overall length of a fluid pressure cylinder.

Abstract: A fan control system includes a tank, a pump, a hydraulic motor, a fan, and a control valve. The control valve is adapted to selectively direct a flow of hydraulic fluid from the pump through the control valve into a pressure control chamber of the hydraulic motor or from the pressure control chamber to the tank to vary the control pressure therein to move the hydraulic motor's swashplate between forward and reverse positions. The control valve is adapted to selectively direct hydraulic fluid from the pump into the pressure control chamber such that the control pressure therein is pressurized to an idle pressure to move the swashplate to an intermediate position between the forward and reverse positions such that the output shaft rotates at an idle rate which is less than the rotational speed of the output shaft when in the forward mode.

Abstract: A hydraulic fluid system is provided for a work implement having a support plate, the work implement being provided on a machine having an auxiliary hydraulic fluid supply line and an auxiliary hydraulic fluid return line. The hydraulic fluid system includes a motor having an inlet port and an outlet port, and a mounting plate coupled to the support plate of the implement. The mounting plate further defines a supply conduit configured to fluidly communicate between the auxiliary hydraulic fluid supply line and the inlet port of the motor, and a return conduit fluidly communicating between the outlet port of the motor and the auxiliary hydraulic fluid return line. A kit and a method for retrofitting a hydraulic fluid system are also disclosed.

Abstract: The invention relates to a fluid-actuated rotary actuator comprising a housing having a tubular body extending in an axial direction, in which is provided a drive piston assembly for driving a rotatably mounted output shaft, which extends perpendicular to the axial direction through the tubular body and the axial end of which is routed out of the tubular body at an upper wall section of the tubular body, further comprising a magnet assembly associated with the axial end of the output shaft and receiving a rotary movement of the output shaft, and further comprising a position feedback device configured to detect the magnetic field generated by the magnet assembly and to provide, in accordance with the detected magnetic field, a position signal corresponding to a position of the output shaft, wherein the position feedback device is located in a receptacle chamber formed in the upper wall section of the tubular body.

Abstract: The subject matter of this specification can be embodied in, among other things, an articulated joint includes a first rotary actuator having a first housing defining a first arcuate chamber comprising a first cavity, and an arcuate-shaped first piston having a first radius of curvature and disposed in said first housing for reciprocal movement in the first arcuate chamber, a second rotary actuator having a second housing defining a second arcuate chamber comprising a second cavity, and an arcuate-shaped second piston having a second radius of curvature and disposed in said second housing for reciprocal movement in the second arcuate chamber, wherein a first radial side of the first piston relative to the first radius of curvature is in bearing contact with a first radial side of the second piston relative to the second radius of curvature at a contact point between the first axis and the second axis.

Abstract: A plunger member 3 used for a belt type continuously variable transmission is configured by cold press molding a blank material 32 according to deep-drawing molding, and closed forging, compression molding or a combined molding thereof, where during the cold press molding, a thickness of a bent corner portion 3f, which at least makes a sleeve portion 3c and a step-like formed portion (spring seating portion) 3d continuous to each other, is configured to be increased by 30% or more relative to a thickness of the blank material 32, and then a hardened surface layer 3B is configured to be formed on both of the entire front and back sides of the plunger member by performing a soft nitriding treatment.

Abstract: A centre seeking actuator having an outer cylinder, a slave cylinder slidably disposed within the outer cylinder, and a rod assembly having a piston slidably disposed within the slave cylinder and a rod extending from the piston to a point outside the outer cylinder. One or more first dynamic seals are arranged to act on a side wall of the rod to inhibit working fluid leaking from the outer cylinder, and one or more second dynamic seals are arranged to act on a sidewall of the slave cylinder to inhibit working fluid leaking from the outer cylinder.

Abstract: In a fluid pressure cylinder, a piston unit, which is displaced along an axial direction under the supply of a pressure fluid, is disposed in the interior of a cylinder tube of the fluid pressure cylinder. The piston unit includes a disk shaped plate body connected to one end of a piston rod, and a ring body connected to an outer edge portion of the plate body. The plate body is formed from an elastically deformable metal material, and by the plate body becoming elastically deformed and flexing when the ring body of the piston unit abuts against the head cover or the rod cover, shocks applied with respect to the piston unit are buffered.

Abstract: A hydraulic system for a machine includes a plurality of hydraulic component, wherein the hydraulic components include hydraulic actuators and hydraulic motors. The hydraulic system also includes a plurality of hydraulic circuits, and a plurality of hydraulic pumps for supplying hydraulic fluid to the plurality of hydraulic components via the hydraulic circuits. At least one hydraulic component receives hydraulic flow exclusively from a designated one of the hydraulic pumps and at least another, different hydraulic component receives shared hydraulic flow from a flow sharing set of the hydraulic pumps.

Abstract: An electromagnetically operated powertrain system is provided. The system includes a plurality of cylinder assemblies arranged in parallel at least partially along a vehicle. Each of the cylinder assemblies may include one or more cylinders, one or more electromagnetic devices secured to at least one of the ends of each cylinder, one or more pistons reciprocatingly received in the cylinders, and a piston rod coupled to the pistons. Each of the pistons includes a permanent magnet that creates a magnetic field interacting with an electromagnetic field generated by each of the electromagnetic devices. A pulling and/or pushing force may be selectively generated by the magnetic field and the electromagnetic field to enable the pistons to reciprocate within the cylinders. A crankshaft is coupled to the piston rods of the plurality of cylinder assemblies and directly coupled to at least one of front and rear axles of a vehicle.

Abstract: An energy recovery system includes cylinders that articulate a hydraulic tool in a pump mode to provide potential energy and in a motor mode to recover the potential energy. The energy recovery system includes a tank that stores a hydraulic fluid for the cylinders and an open circuit variable displacement pump that circulates the hydraulic fluid in the pump mode from the tank to the cylinders and in the motor mode from the cylinders to the tank. The open circuit variable displacement pump includes a swashplate articulable between a positive position and a negative position. In the positive position, the hydraulic fluid circulates in the pump mode and in the negative position the hydraulic fluid circulates in the motor mode. The open circuit variable displacement pump includes an actuator that articulates the swashplate and a bias system that maintains the swashplate in a positive position when the hydraulic fluid is not in circulation.

Abstract: A device is provided for controlling fluid flow over a window of a movable optical instrument housing. The device includes a generally annular body having an inner peripheral edge configured to correspond to a peripheral edge of the window of the housing and an outer peripheral edge, an arcuate outer surface disposed between the inner peripheral edge and the outer peripheral edge, and a reduced width portion between the inner peripheral edge and the outer peripheral edge. The reduced width portion is configured to lower elevation torque. Other embodiments of the device and methods for controlling fluid flow are further disclosed.

Abstract: A tool having a temperature management arrangement including a unitary body, a channel within the body having a geometric discontinuity. A tool including a temperature management arrangement having a seal-less channel formed simultaneously with formation of a body. A method for producing a thermal management arrangement including additively growing the arrangement while selectively forming a seal-less channel in the arrangement.