The present invention controls the pressure and flow rate of fluid, in order to obtain uniform performance, configure a closed loop magnetic circuit so as to include an electromagnet, a flapper, and a yoke material, and elastically deform the flapper itself by Maxwell attractive force generated between a magnetic pole of the electromagnet and the flapper to make the separation distance between the nozzle and the flapper variable. As opposed to a rigid flapper structure that swingably moves around a supporting point, like a conventional servo valve, the electromagnet, the magnetic pole, the nozzle, the flapper, and the like are arranged such that a change in magnetic gap directly leads to a change in air gap.

An electromagnetic valve has an inlet port and an outlet port. The electromagnetic valve is configured to open and close a driving fluid passage communicating the inlet port and the outlet port. The electromagnetic valve includes: a housing; a solenoid that includes a bobbin having a coil wound therearound; a moving core that is provided on an axis of the bobbin and is disposed movably in an axial direction; a stationary core that is provided on the axis of the bobbin and is fixed in the housing; and a valve that is configured to be movable together with the moving core and opens and closes the driving fluid passage. The inlet port is opened on one surface side of the housing in the axial direction of the bobbin while the outlet port is opened on the other surface side of the housing in the axial direction of the bobbin.

A solenoid valve includes: a valve housing having, at one end thereof, an inlet port through which a fluid is introduced and having, at the other end thereof, an outlet port through which the fluid is discharged; a solenoid provided in the valve housing and disposed between the inlet port and the outlet port; a first plunger provided at one end of the solenoid adjacent to the inlet port and configured to selectively open or close the inlet port by being rectilinearly moved by the solenoid; a first spring member configured to provide elastic force to allow the first plunger to move in a direction in which the first plunger closes the inlet port; a second plunger provided at the other end of the solenoid adjacent to the outlet port and configured to selectively open or close the outlet port by being rectilinearly moved by the solenoid in a direction opposite to the movement direction of the first plunger; and a second spring member configured to provide elastic force to allow the second plunger to move in a direction in which the second plunger closes the outlet port. The solenoid valve has a simplified structure while ensuring sealability.

Fluid circulation valve, the said valve comprising a housing (1) and a body (2) for circulation of fluid, the said body (2) being located at least partially within the said housing (1), the said body (2) being attached to the housing (1) and having a passage (4) for fluid between the said body (2) and the said housing (1), the said valve further comprising a control member (30) that can be actuated electromagnetically, the said control member (30) being able to move with respect to the said body (2) so as to selectively open or close the said passage (4), the said body (2) having at least locally a tubular configuration at the said passage (4), the said control member (30) being able to slide along the said body (2) at least at the said passage (4).

The present disclosure discloses an electromagnetic regulating valve with a check function. The valve may effectively regulate the flow in a valve body. Due to different lengths and taper angles of a valve flap group, the flow can be regulated more finely, and a medium can be prevented from backflow by a check function when necessary. Meanwhile, a mesh structure of bases of valve flaps can effectively reduce the instability of flow field motion so as to achieve an effect of rectifying.

A valve assembly for regulating the flow of working fluid between a working chamber of a fluid working machine and a working fluid gallery comprises: a valve comprising a valve member and one or more cooperating valve seats; an actuator actuatable to apply a force to urge the valve member away from or towards the one or more valve seats; and a coupling between the actuator and the valve member. The coupling comprises a connector located at least partially within a tube. A connector void provided between at least a portion of the connector and the tube is in fluid communication with a working fluid gallery outlet.

A mixer for mixing a mobile phase in a sample separation device for separating a fluidic sample, wherein the mixer includes a fluid inlet for supplying the mobile phase to be mixed to a mixing volume, a movable body configured for rotating and axially moving in the mixing volume to thereby mix the mobile phase, and a fluid outlet for supplying the mixed mobile phase to a mobile phase consumer.

An appliance comprising an air flow path extending from an air inlet, by which water and air are introduced to the appliance, to an air outlet. A water separator is positioned in the air flow path, which, when in operation, separates the water from the air. A water storage chamber is in fluid flow communication with the water separator, which stores the water separated from the air. The appliance also comprises an automatic closure member movable between an open position and a closed position. When the automatic closure member is in the open position, the water storage chamber is in fluid flow communication with the water separator; when in the closed position, the water storage chamber is isolated from the water separator. The automatic closure member moves from the open position to the closed position when the pressure in the water separator increases above a predetermined level.

A valve assembly includes a valve moveable between an open position where hydraulic fluid flow is permitted and a closed position where hydraulic fluid flow is blocked. A controller includes a magnetometer adapted to measure a magnetic flux through at least a portion of a solenoid linear actuator that moves the valve. A magnetic flux value measured by the magnetometer corresponds to a linear position of the regulating member relative to the port.

A combination valve including an electromagnetic shut-off valve and an integrated pipe-break protection includes an inflow and an outflow, between which a first flow path is defined, a sealing surface arranged in the first flow path, a movable sealing body including a main seat and a pilot seat, between which a pilot bore is defined as a second flow path, a closing spring, an armature with a sealing surface and a magnetic coil. The sealing body closes the first flow path in the closed position by abutting the main seat against the sealing surface and closes the second flow path by abutting the sealing surface against the pilot seat. The closing spring presses the sealing surface of the armature against the pilot seat of the sealing body and the main seat of the sealing body against the sealing surface. An opening spring presses the sealing body into the open position.