摘要:
A solenoid operated valve has a separate pressure sensing port communicating with the valve outlet port. A circuit board with a pressure transducer mounted over a sensing orifice in the board is attached to the valve body with the sensing orifice communicating with the sensing port in the valve body. The transducer thus provides a feedback signal indicative of the valve outlet pressure.
摘要:
A method and apparatus for delivering gases to a semiconductor processing system are provided. In one embodiment, an apparatus for delivering gases to a semiconductor processing system includes a plurality of gas input and output lines having inlet and outlet ports. Connecting lines couple respective pairs of the gas input and gas output lines. Connecting valves are arranged to control flow through the respective connecting lines. Mass gas flow controllers are arranged to control flow into respective inlet ports. In another embodiment, a method includes providing a manifold having at least a plurality of inlet that may be selectively coupled to at least one of a plurality of outlets, flowing one or more gases through the manifold to a vacuum environment by-passing the processing chamber prior to processing or to a calibration circuit, and flowing the one or more gases into the processing chamber during substrate processing.
摘要:
A faucet device includes a block disposed in a faucet member and having two passages for receiving hot and cold water and having an entrance and an exit coupled to a solenoid valve, a housing disposed in the faucet member and having two ports aligned with the entrance and the exit of the block and an outlet for supplying the water out of the faucet member. A controlling device may control the water to selectively flow through the ports of the housing to allow the faucet device to be selectively operated either manually or automatically. A valve shank may control the hot water and the cold water to flow through the passages and to be mixed in the block.
摘要:
The object of the present invention is to provide a switching valve capable of increasing the opening stroke of a valve operated by a differential pressure while saving space, thereby reducing pressure loss. A first valve is disposed between an inlet port and a first outlet port. A pilot valve is provided between a back pressure chamber for a movable plug that holds a valve sheet disposed in a manner opposed to a valve seat, and the first outlet port, such that the first valve is operated by a solenoid. A second valve is arranged between the inlet port and a second outlet port. A back pressure chamber for a movable plug that holds a valve sheet disposed in a manner opposed to a valve seat and the first outlet port are communicated with each other. The second valve is opened by the differential pressure generated by closing of the first valve, and when the first valve is opened, the second valve is closed by the spring since the differential pressure is reduced to zero. After the second valve is closed, the valve-closed state thereof is maintained by the difference between pressure-receiving areas. The second valve is formed to have a sealing structure using a slidable X packing, whereby the valve-opening stroke can be increased.
摘要:
A gas regulation system includes a manifold, a plurality of control modules in fluid communication with the manifold, and a power source. Each control module includes an actuatable valve that is in fluid communication with an associated gas storage device and in electrical communication with the power source. The power source is adapted to prevent more than one of the actuatable valves from simultaneously having an actuated state.
摘要:
A manual-automatic water faucet includes a shell installed inside with a water intake base, a water outlet valve, an electromagnetic valve, an induction device and a control device. The control device is composed of a valve rod, a spindle and a revolving button. The revolving button is able to actuate the valve rod to rotate or actuate the spindle to shift axially. When the valve rod is actuated to rotate, it can control water temperature, and when the spindle is actuated to shift axially, it can control the faucet to supply water automatically or manually.
摘要:
The valve is designed for the ejection of a plurality of different gases from within the valve, simultaneously, by having a plurality of plenum chambers within the chamber of the valve, and a poppet therein, that are charged with gases under pressure. The gases are sealed within the respective plenum chambers by the action of a spring that urges the poppet against a gas exit port associated with each plenum chamber. Ejection of the gases is accomplished by the application of an electrical current into a coil surrounding the poppet which produces an electromagnetic field that causes a non-ferrous hammer to be driven away from the coil and strike the poppet. Upon being struck by the hammer, the poppet is driven off of the plurality of gas exit ports thereby allowing the gases to be ejected, simultaneously, from the respective plenum chambers into a region of lower pressure.
摘要:
An electromagnetic directional control valve has a magnetic part including a coil body, a coil arrangement of the coil body, a magnetic pole mounted on the coil body, a flux guiding element, and an armature, and a hydraulic part provided with passages and at least one valve which controls a pressure medium flow to the passages, and an outwardly mounted fixing element which fixes the magnetic pole on the coil body.
摘要:
A chained multiple connection change-over valve assembly of an extremely compact form in thickness, formed by connecting a plural number of multiplex change-over valve units of a flatly thin shape successively in a lateral direction, each change-over valve unit containing a plural number of fluid switching mechanisms within a valve casing side by side in a transverse direction and having a plural number of output ports on a front face of the valve casing in a row in the transverse direction.
摘要:
A proportional variable force solenoid valve for controlling the pressure of a pressurized fluid in a fluid control system in proportion to the current level of an electrical input signal comprises a movable valve for controlling the pressure of pressurized fluid in the fluid control system and a solenoid for controlling movement of the valve in linear proportion to the current level of the electrical signal. The movable valve and the solenoid are disposed in a common substantially non-magnetic housing to provide a fluid control unit. The housing may comprise an aluminum casting for insertion in an aluminum transmission body. A movable armature of the solenoid may comprise a cylindrical shaped permanent magnet, rather than a ferromagnetic armature, in order to eliminate the need for a axially magnetized permanent magnet ring. A simplified armature suspension structure, fluid diverting valve mechanism, and electromagnetic flux washer are incorporated.