Abstract: Provided is a belt-type continuously variable transmission which may prevent a servo spool from sliding even when a movable sieve slides due to reduced pressure in a hydraulic cylinder. A hydraulic servo mechanism comprises a servo spool and a feedback spool, and contiguous members coming into contact with the feedback spool (84) between a hydraulic cylinder and the feedback spool The present invention also comprises a spool position maintaining unit that makes it possible for the contiguous members to slide in relation to a movable side cylinder case when pressure in the hydraulic cylinder is lower than a predetermined value.

Abstract: A hydraulic control valve for a construction machine is provided. The hydraulic control valve includes a boom spool slidingly coupled into a valve block to be shifted to control the hydraulic fluid supplied from a first hydraulic pump and a second hydraulic pump to the actuator and provided with an internal path, a supply path of the first hydraulic pump and a supply path of the second hydraulic pump which are formed to be vertically symmetrical about the boom spool, check valves elastically supported to open and close the supply path of the first hydraulic pump and the supply path of the second hydraulic pump, respectively, bridge paths formed to be horizontally and vertically symmetrical with respect to a path formed on a sliding surface of the valve block to supply the hydraulic fluid, cylinder paths supplying the hydraulic fluid from the first hydraulic pump to the actuator.

Abstract: A boom control valve and a pulsation absorption control valve are provided in the halfway point of a center bypass line. The pulsation absorption control valve is arranged in a position downstream of the boom control valve. The pulsation absorption control valve is switched to a blockade position and a communication position by a pilot pressure from a remote control valve. The pulsation absorption control valve is constituted such that one main line out of a pair of main lines is communicated with or blocked off from an accumulator via one communication line and the other main line is communicated with or blocked off from the side of a tank via the other communication line. The accumulator is operated as a dynamic damper at the traveling of a vehicle. This arrangement enables the construction of the communication line to be simplified, thus improving operability at assembling.

Abstract: A steering system for a vehicle includes a sector shaft defining a bore therein and rotatable about a central longitudinal axis. The steering system also includes a lash adjuster translatable within the bore along the central longitudinal axis. In addition, the steering system includes an end cap cover abutting the lash adjuster and spaced apart from the sector shaft to define a first cavity between the end cap cover and the sector shaft, and a housing abutting the end cap cover and spaced apart from the sector shaft to define a second cavity between the housing and the sector shaft. The steering system also includes a seal surrounding and abutting the sector shaft, wherein the seal separates the first cavity from the second cavity.

Abstract: A first directional control valve for switching between a first supply position and a first discharge position and a second directional control valve for switching between a second discharge position and a second supply position. A first switching mechanism permits the first directional control valve to be switched to the first supply position in a state where a second switching mechanism has switched the second directional control valve to the second discharge position. In a state where the second switching mechanism has switched the second directional control valve to the second supply position, a pressure fluid supplied to the second directional control valve at the second supply position switches the first directional control valve to the first discharge position via the first switching mechanism.

Abstract: A control valve (1) of a camshaft adjuster is provided having a multi-part housing (2) that is formed as a screw

Abstract: A hydraulic control circuit for a drive line includes first and second switching valves and first and second solenoid valves. Each switching valve is alternatively switched by a switching hydraulic pressure to connect any two of three ports. The first port of the first switching valve is connected to a hydraulic actuator. The first port of the second switching valve is connected to the second port of the first switching valve. The first solenoid valve supplies the switching hydraulic pressure to the switching valves. The second solenoid valve regulates a control hydraulic pressure supplied to the hydraulic actuator. Any one of three oil paths is communicated with the hydraulic actuator by supplying the control hydraulic pressure via the third port of the first switching valve or the second or third port of the second switching valve and supplying the switching hydraulic pressure to at least one switching valve.

Abstract: The present invention relates to a hydraulic valve arrangement for controlling/regulating at least one hydraulic consumer of a mobile machine, with a summation interconnection of at least two hydraulic valves and at least one consumer interconnection of hydraulic valves, wherein the outputs of the summation interconnection are hydraulically connected with the inputs of the consumer interconnection, wherein at least one backflow valve is provided in the consumer interconnection. According to the invention, the at least one backflow valve for throttling a consumer return volume flow opens or closes in dependence on a consumer inflow pressure and comprises at least one main piston arranged in a bushing and at least two further pistons arranged in a lid separate from the bushing, wherein the main piston and the control piston interact with each other via a compression spring.

Abstract: The present invention relates to a hydraulic valve arrangement for controlling/regulating at least one hydraulic consumer of a mobile machine, with a summation interconnection of at least two hydraulic valves and at least one consumer interconnection of hydraulic valves, wherein the outputs of the summation interconnection are hydraulically connected with the inputs of the consumer interconnection, wherein at least one backflow valve is provided in the consumer interconnection. According to the invention, the at least one backflow valve for throttling a consumer return volume flow opens or closes in dependence on a consumer inflow pressure and comprises at least one main piston arranged in a bushing and at least two further pistons arranged in a lid separate from the bushing.

Abstract: A shaft sealing device switches a sealing state and an unsealing state of a fluid, with high sealing performance maintained, because no abrasion accompanies movement of a sealing material or a sealing member, enabling feeding a fluid at a predetermined flow rate, and adjusts the expanding rate of the sealing material with the quantity of an external electric signal and accordingly adjusts the contact face pressure to enable controlling the amount of leakage of the fluid highly precisely, so that it can be used for all applications. The shaft sealing device includes a shaft sealing body formed of a macromolecular material and made expansible or contractible, or deformable, through external electrostimuli applied to a shaft sealing portion disposed in a device body, and flow passages disposed in the shaft sealing portion for feeding the fluid leaked due to the expansion or contraction, or the deformation, of the shaft sealing body.

Abstract: A control valve includes a valve body, which defines first, second, and third valve passageways. The valve body also defines a supply passageway. The control valve includes a first spool movable relative to the valve body between first and second positions. The control valve includes a second spool movable relative to the valve body between open and closed positions. The supply passageway is in fluid communication with the first valve passageway when the first spool is in the first position. The supply passageway is in fluid communication with the second valve passageway when the first spool is in the second position. The supply passageway is in fluid communication with the third valve passageway when the second spool is in the open position. The second spool precludes fluid flow between the supply passageway and the third valve passageway when the second spool is in the closed position.

Abstract: The present invention relates to a valve for a hydraulically operated percussion mechanism having a main valve (2, 102) which is in the form of a rotary slide valve having a rotary slide. In order to reduce the installation space and the production costs of such valves, it is proposed according to the invention that the rotary slide is configured as a receiving housing which receives a valve element in the form of a secondary valve (68, 114). Furthermore, the invention relates to the use of a valve which is arranged on a percussion mechanism of a hydraulic hammer.

Abstract: A ground force control circuit (162) for an articulated harvesting head is provided that comprises, an ECU (164); and a first hydraulic control valve (166, 170) driven by the ECU (164), wherein the first hydraulic control valve (166, 170) is coupled to at least one actuator (158, 160) and is configured to maintain a constant pressure in the at least one actuator (158, 160).

Abstract: The component (10) comprises a hollow body (12) having: an inlet (14, 14a, 14b), which is adapted to be connected to a source of pressurized liquid, for example the water supply network (WS); an outlet (16), adapted to deliver said liquid to a washing chamber (WC) defined by said washing tub (WT); a path (18) for the liquid, which is defined in the hollow body (12) between the inlet (14, 14a, 14b) and the outlet (16) and includes anti-return means (26, 26a) for said liquid under pressure; a passage (28), adapted to receive, at its inlet, vapor coming from the washing chamber (WC) and to discharge the vapor into the environment outside of the washing tub (WT); and a valve device (30) comprising a plug element (32), adapted to at least partially free and obstruct said passage (28).

Abstract: An integrated manifold system maximizes space for the circuit board while enabling efficient control of one or more pneumatic devices. The manifold system includes a manifold block, a solenoid valve attached to the manifold block, and a circuit board for controlling the solenoid and other components of an air suspension system. The manifold block includes at least one service port for connecting to a pneumatic device such as an air spring, and a supply port for connecting to a compressor. The solenoid valve is mounted to the manifold block with its longitudinal length being generally parallel to the service port. The circuit board is mounted adjacent to the solenoid valve and oriented generally parallel to the solenoid and service port. A cover encloses the solenoid valve and the circuit board. In one embodiment, the solenoid valve is in fluid communication with the supply port. The solenoid valve is uniquely associated with the service port.

Abstract: In various exemplary embodiments described herein, a system and related method to provide airflow management system in a substrate production tool includes a housing to couple the substrate production tool to a fan filter unit to provide filtered air to the housing, a facility connection to couple the substrate production tool to a reduced pressure exhaust mechanism, a substrate transfer section coupled below the housing and in airflow communication with the facility connection, and a substrate process area coupled to the substrate transfer section by one or more substrate transfer slots. A chamber substantially containing the substrate transfer section and the substrate process area is coupled to the housing to receive the filtered air and to the facility connection to provide an exhaust for excess gas flow. The chamber maintains a low pressure in the substrate process area relative to the substrate transfer section.

Abstract: A pneumatic brake system that includes at least one pneumatic latching valve; a single device, such as a solenoid, for providing momentary pilot signals to pneumatic latching valve; a source of pressurized supply air in communication with the pneumatic latching valve; a spring brake or other pneumatic device in communication with the pneumatic latching valve; and, optionally, an indicator device for monitoring and displaying the state of the pneumatic latching valve. Upon receiving a first momentary pilot signal the pneumatic latching valve changes from closed to open and delivers pressurized air to the spring brake. Upon receiving a second momentary pilot signal, the pneumatic latching valve changes from open to closed and exhausts pressurized air from the spring brake to the external environment. The valve remains “latched” in its current state until the signaling device is energized and the next momentary pilot signal is received.

Abstract: A processing method is provided in which an object to be processed is processed within a processing container connected to a gas supply system, an exhaust system and an opening degree variable valve by using a processing gas in a plurality of sequential processing steps. The processing method includes: an acquisition process for acquiring an opening degree of the opening degree variable valve corresponding to a target pressure value within the processing container under a predetermined processing condition for at least one of the plurality of sequential processing steps; and an execution process for executing the at least one of the plurality of sequential processing steps for which the opening degree has been acquired by the acquisition process with the opening degree.

Abstract: A flow isolation system for connecting a source of pressurized fluid to plumbing for using the fluid. A generally vertical flow chamber extends from a lower end to an upper end, with an inlet for a pressurized fluid is disposed in a sidewall of the vertical chamber in a position near but paced above the lower end, and an outlet disposed in a sidewall of the vertical chamber in a position near but below the upper end. An evacuation tube extends from an open end near the lower portion of the vertical chamber to an evacuation valve disposed in the upper end. A gas inlet may be disposed in the upper end. When both the exit and inlet are closed, the system may be evacuated by connecting pressurized gas to the gas inlet to force fluid up the evacuation tube and out the evacuation valve.

Abstract: A method is provided to detect the presence of hydraulic line pressure in a hydraulic control system in an electromechanical transmission. The method includes determining an estimated hydraulic line pressure of the hydraulic control system based upon an input flow and an output flow of hydraulic fluid. The input flow and output flow are regulated with a pressure control device, which is energizable on operator demand. A pressure detection device is fluidly connected to the pressure control device to detect the presence of hydraulic pressure. An override module is applied to the estimated hydraulic line pressure to determine a corrected hydraulic line pressure. The override module sets the corrected hydraulic line pressure to predetermined values based on the operating state indicated by the pressure detection device. The override module corrects for an over-estimation of hydraulic line pressure in operating conditions such as low environmental temperatures.

Abstract: Provided herein are methods for the modulation of appearance or material properties within items of apparel or equipment. Also provided herein are design articles having alterable designs.

Abstract: A drain cassette for a dialysis unit has a fluid channel between venous and arterial connection ports, and a valve may controllably open and close fluid communication between a drain outlet port and the venous connection port or the arterial connection port. A blood circuit assembly and drain cassette may be removable from the dialysis unit, e.g., by hand and without the use of tools. A blood circuit assembly may include a single, unitary member that defines portions of a pair of blood pumps, control valves, channels to accurately position flexible tubing for an occluder, an air trap support, and/or other portions of the assembly. A blood circuit assembly engagement device may assist with retaining a blood circuit assembly on the dialysis unit, and/or with removal of the assembly. An actuator may operate a retainer element and an ejector element that interact with the assembly.

Abstract: A valve apparatus capable of withstanding high pressures and techniques for using this apparatus in various suitable applications are provided. The valve apparatus typically includes both an upper bellows comprising a standard, convoluted bellows and a lower bellows comprising an edge-welded bellows. The valve apparatus may also include a floating, constant volume fluid chamber that travels with the lower edge-welded bellows as the lower bellows compresses and expands in an effort to protect the lower bellows from very high internal volume fluid pressure.

Abstract: An example bypass valve includes a sleeve providing a bore that extends along an axis. The sleeve has at least one window. The bypass valve also includes a spool received within the bore. The spool is configured to move within the bore between a first position that restricts flow through at least one window and a second position that permits flow through the at least one window of the sleeve. An outer diameter of the spool is from 99.90 to 99.95 percent of a diameter of the bore.

Abstract: A method of preventing a mass flow controller from participating in crosstalk in an array of mass flow controllers is described. The method includes sensing and providing a signal indicative of a fluid pressure inside of a mass flow controller with a pressure sensor contained within the mass flow controller, determining a response of a control valve to a rapid pressure perturbation at the inlet of the mass flow controller using the signal indicative of the fluid pressure to avoid overcompensation for the rapid pressure perturbation, and adjusting a control valve contained within the mass flow controller downstream of the pressure sensor, based on the determined response, so that the mass flow controller avoids overcompensating for the rapid pressure perturbation. The pressure sensor is positioned such that the pressure sensor is sensitive to rapid pressure perturbations at the inlet of the mass flow controller.

Abstract: A pneumatic dispenser is provided comprising a handle with an actuation arrangement comprising two actuation surfaces, each for actuation by an operator holding the handle to selectively apply pressure to a respective one of the front and rear chambers on either side of a piston couple to a rod for applying a dispensing force, thereby controlling advance and retreat of the rod. Further, a valve is provided comprising a body and first and second moveable members. The valve can be arranged as a space saving five port valve for use in the disclosed dispenser. Additionally, a dispenser comprising a stock portion and a cylinder secured to the stock portion is disclosed. Pressure is supplied to the rear chamber of the cylinder from the stock portion through its front chamber and the piston moveable inside the cylinder.

Abstract: A hydraulic valve device has a fluid port arrangement (10) with various ports extending at least partially in the valve housing (14), and has a movable control device (18) for at least partially activating the ports. The control device (18) can be acted on at two opposite control sides with a control pressure (XA, XB) of an activation unit (46). A valve device of narrow construction and functionally reliable is created by a media-conducting duct (66) with a guide path extending at least partially as an open duct channel that can be closed off by a cover part or by other housing parts of the multi-part valve housing (14), to conduct the control pressure (XB) from the activation unit (46) to the assignable control side of the control device (18).

Abstract: An extended term resuscitation system includes a plurality of inflatable cuffs adapted to extend around separate portions of the anatomy of a patient (i.e. the chest, abdomen and legs) for enhancing the circulation when inflated/deflated periodically. A primary low-pressure-high-volume air compressor is in fluid communication with each of the cuffs through individual air handlers. The air handlers are formed with an inflation and a deflation diaphragm valve which, under the control of an electronic timer and a pneumatic circuit, connect the respective cuff to the output of the compressor for inflation or to the atmosphere for deflation. A secondary air compressor provides air under suitable pressure to the pneumatic circuit for the control of the diaphragm valves. As an option the operator may change the cyclical rate and cuff pressure. A ventilator provides oxygen to the patient in selected volumes or on demand.

Abstract: Apparatuses, methods and systems for liquid flow control and beverage preparation are disclosed. The apparatuses, methods and systems of the present invention include liquid flow control and beverage preparation capsules, pods, cartridges, pouches, systems, and modules for controlling and directing flow streams of liquid through a beverage preparation process. The apparatuses, methods and systems of the present invention may be used in combination with or included as an integral assembly of any apparatus, method or system for liquid dispension.

Abstract: A hydraulic control valve is provided, which can prevent the occurrence of overload by relieving hydraulic fluid of a return line in which the overload occurs due to an inertial force of a rotator when a hydraulic motor that is operated by the hydraulic fluid supplied from a hydraulic pump stops halfway.

Abstract: Pressure regulator device comprising a body (1), a minimum of a pressure reducer and a damper mounted in control and damping cavities, respectively, in the body (1), and a control member (4) pivoting on an upper face (10) of the body (1). The device is noteworthy in that the control and damping cavities have open ends in a peripheral face (12) of the body (1) and the control member (4) has parts (47) that are opposite the peripheral face (12) in order to face the open ends of the respective control and damping cavities, from which control (21) and damping pushrods, respectively, project. The present invention has an application in the hydraulic remote controls of civil engineering machines.

Abstract: A cleaning system for a photomask unit is disclosed. The photomask unit defines an inner chamber and includes a photomask, a pellicle frame, a diaphragm-like pellicle film, and a ventilation port. The cleaning system includes: a housing defining an outer chamber; and a reduced-pressure generating unit disposed to intermittently generate a reduced-pressure zone in the outer chamber and in proximity to the photomask unit such that a pressure differential is generated between the inner chamber and the reduced-pressure zone to cause a central film portion of the diaphragm-like pellicle film to move toward or away from a central pattern region of the photomask so as to permit the cleaning gas to flow out of or into the ventilation port alternately.

Abstract: An improved gas delivery system and method delivers a sequence of pulses of prescribed amounts of at least two gases to a process chamber of a process tool in accordance with a predetermined recipe of steps of a gas delivery process. The system comprises: a plurality of channels, each including a control valve connected so as to control each pulse of gas flowing through the corresponding channel into the process chamber of the process tool; and an exhaust valve for controlling the pressure within the process chamber, the exhaust valve including a valve controller for controlling the operation of the gas delivery system including the control valves and the exhaust valve in accordance with the predetermined recipe of steps.

Abstract: A dual fuel common rail fuel injector includes a first and second control valve assembly and a first and second check needle. The dual fuel injector is capable of selectively injecting two different fuels such as diesel and liquefied natural gas. The first and second control valve assemblies operate using a single fuel, such as diesel, as the control medium. The dual fuel common rail injector further includes a hydraulic lock assembly.

Abstract: A compressed fluid storage arrangement (10) for a compressed fluid vehicle which includes a core of flexuous tubing (102) for storing compressed fluid to be supplied to a motor (70) of the vehicle, the core (102) being shaped and dimensioned to occupy a cavity of a vehicle component. The compressed fluid is delivered via a pressure control system (90) to the engine (70), which in turn generates an engine output.

Abstract: A rotary coupler for directing a fluid between a fluid supply and fixtures rotatable about a fixture axis and which has a manifold plate directing the fluid from a manifold inlet and a manifold outlet to the fixtures positioned about the fixture axis, the coupler including a spindle having a base portion and a shaft portion and the shaft portion defines a coupler axis and has a shaft surface generally coaxial to the coupler axis and the shaft surface includes an annular pressure zone and an axially spaced annular tank zone, the spindle also includes an internal pressurized fluid passage and an internal tank fluid passage wherein the pressurized passage extends within the spindle the coupler further includes a hub with a shaft opening shaped to receive the shaft portion, the manifold having control valves for selective actuation of the fixturing.

Abstract: An inflatable safety device is provided. A method of using an inflatable safety device in an overhead conduit or area of a cement manufacturing plant to keep debris from falling on a worker below the device, is also provided.

Abstract: Embodiments of the present invention provide improved draining and venting systems for coffee makers and other water-using appliances used on board passenger transport vehicles.

Abstract: Methods and apparatus for delivery of gas are provided herein. In some embodiments, a gas delivery system may include a premix tank having an inlet and an outlet; a plurality of gas supplies coupled to the inlet of the premix tank; a plurality of valves, each valve respectively disposed in line with a corresponding one of the plurality of gas supplies; and a conduit coupling the outlet of the premix tank to one or more gas delivery zones.

Abstract: A pressure control valve assembly including a valve body with a valving cavity, a metal insert, a member and ball, a plastic internal ball guide, and a plug. The metal insert, which is received within the valving cavity, includes an exhaust port, a pressure control port, a supply port, and a plug-receiving end. The plastic internal ball guide is included within a portion of the metal insert. The member extends within a portion of the insert and is movable with respect to the exhaust port, the member moving a ball with respect to a supply port. In an embodiment, a plug is received within the plug-receiving end of the insert. A method for making a valve body for a valve assembly is also disclosed.

Abstract: A method is provided to detect the presence of hydraulic line pressure in a hydraulic control system in an electromechanical transmission. The method includes determining an estimated hydraulic line pressure of the hydraulic control system based upon an input flow and an output flow of hydraulic fluid. The input flow and output flow are regulated with a pressure control device, which is energizable on operator demand. A pressure detection device is fluidly connected to the pressure control device to detect the presence of hydraulic pressure. An override module is applied to the estimated hydraulic line pressure to determine a corrected hydraulic line pressure. The override module sets the corrected hydraulic line pressure to predetermined values based on the operating state indicated by the pressure detection device. The override module corrects for an over-estimation of hydraulic line pressure in operating conditions such as low environmental temperatures.

Abstract: A liquid processing apparatus includes at least one liquid processing unit for performing a liquid process on a substrate with a processing solution; supply pipes for supplying the processing solution into the at least one liquid processing unit; a housing accommodating a flow control member group provided on the supply pipes; and an upstream port and a downstream port detachably connected to the supply pipes located at an upstream side of the flow control member group and a downstream side of the flow control member group, respectably. Here, one end of the supply pipes is connected with the liquid processing unit and the other end thereof is extended to below the liquid processing unit and both the upstream and downstream ports are provided in the housing facing a main maintenance region located at a lateral side of the liquid processing apparatus.

Abstract: A volume booster for an actuator system advantageously includes an adjustable restrictor, such that the exhaust capacity of the device can be adjusted for specific applications. The device comprises a body, a supply path, an exhaust path, and the restrictor. The supply path operates to provide a supply of fluid to boost a stroke time of an actuator in the actuator system, e.g., in an opening direction. The exhaust path operates to accommodate backpressure relief when the actuator system operates the actuator in a closing direction, for example. The restrictor is disposed within the exhaust path and is selectively manipulable between a plurality of positions to define a plurality of distinct exhaust capacities, thereby eliminating any requirement to change the entire volume booster to achieve a different exhaust capacity.

Abstract: According to one embodiment, a gas supply member is provided with a gas supply passage including a gas flow channel with a first diameter, and an exhaust port connected to one end portion of the gas flow channel and provided to a surface of a downstream side of the gas supply member. An yttria-containing film is formed on a surface constituting the exhaust port and the surface of the downstream side of the gas supply member. At least a part of the surface constituting the exhaust port is formed with a curved surface.

Abstract: A valve assembly including a housing (24?) provided with an inlet port (12?), a delivery port (14?), and an exhaust port (16?), the valve assembly further including a first movable element (32?), a first valve member (34a?) and a second valve member (26a?), the first movable element (32?) being engageable with the first valve member (34a?), engagement of the first valve member (34a?) and first movable element (32?) substantially preventing flow of fluid between the inlet port (12?) and the delivery port (14?), and the first movable element (32?) also being engageable with the second valve member (26a?), engagement of the second valve member (26a?) with the first movable element (32?) substantially preventing flow of fluid between the delivery port (14?) and the exhaust port (16?), the valve assembly further including a second movable element (26?) which divides the housing (24?) into a control chamber (22?) and a main chamber (30?) and which is movable relative to the housing (24?) under the influence of flui

Abstract: A hydraulic coupling for sub sea applications comprises inter-engageable male and female connectors. The male connector defines a male member for receipt in a chamber defined by the female connector. Each connector has a respective check valve for controlling the flow of fluid through internal bores in the connectors. The check valves are actuable by an actuator between an open position in which hydraulic fluid may flow through the respective internal bore and a closed position in which such flow is interrupted, depending on the distance between the first and second check valves. The male and female connectors are moveable between an uncoupled position in which the check valves are in the closed position and a coupled position in which the male and female connectors are engaged and extend along a longitudinal axis with the male member occupying the chamber of the female connector in a sealed relationship. A pair of seals are provided one on the male member and the other on the in the chamber.

Abstract: In various exemplary embodiments described herein, a system and related method to provide airflow management system in a substrate production tool includes a housing to couple the substrate production tool to a fan filter unit to provide filtered air to the housing, a facility connection to couple the substrate production tool to a reduced pressure exhaust mechanism, a substrate transfer section coupled below the housing and in airflow communication with the facility connection, and a substrate process area coupled to the substrate transfer section by one or more substrate transfer slots. A chamber substantially containing the substrate transfer section and the substrate process area is coupled to the housing to receive the filtered air and to the facility connection to provide an exhaust for excess gas flow. The chamber maintains a low pressure in the substrate process area relative to the substrate transfer section.

Abstract: The invention concerns a hydraulic valve arrangement (1) with at least two valve modules (2-6), each having a supply channel arrangement with a high-pressure channel (9) and a low-pressure channel (15), a working connection arrangement with at least one working connection (A, B), one directional valve arrangement (16) between the supply channel arrangement (9, 15) and the working connection arrangement (A, B) and a compensation arrangement (19), which is acted upon by a pressure in a load-sensing arrangement. It is endeavored to increase the number of control possibilities. For this purpose, the load-sensing arrangement of at least one valve module (2-6) has a pressure influencing arrangement (25-29) that differs from a pressure influencing arrangement (25-29) of a load sensing arrangement of another valve module (2-6).

Abstract: A steering system includes a fluid actuator, a first steering circuit in selective fluid communication with the fluid actuator, and a second steering circuit in selective fluid communication with the fluid actuator and disposed in parallel to the first steering circuit. The second steering circuit includes a load-reaction feature and an isolation valve with the isolation valve being adapted to enable and disable the load-reaction feature.

Abstract: A valve assembly is provided that can operate to fill and/or 100 refill a container with, for example, a liquid while venting excess vapor from the container associated with the liquid to relieve pressure in the container created by the liquid, and that can operate to introduce a carrier gas into the container for use in retrieving vapor products from the liquid within the container. The valve assembly includes a housing defining two bores and multiple ports extending through the housing in communication with the bores. A valve spool is located within each bore to selectively control movement through the housing of the liquid, the excess vapor associated with the liquid, the carrier gas, and the vapor products retrieved from the liquid by the carrier gas.