A valve unit (V) has a valve housing (50) that includes a supply oil passage (55) configured to receive operating oil from a hydraulic pump, and a pressure adjustment valve (Va) configured to adjust the pressure of the supply oil passage (55). The pressure adjustment valve (Va) includes a pressure adjustment valve body (61) configured to open and close the supply oil passage (55), a compression coil spring (62) that keeps the pressure adjustment valve body (61) at a closed position when the pressure of the supply oil passage (55) is smaller than a set value and allows the pressure adjustment valve body (61) to open when the pressure of the supply oil passage (55) is not smaller than the set value, and a restriction member (63) configured to, when the pressure adjustment valve body (61) becomes open against the urging force of the spring (62) in response to a pressure of the operating oil, abut against the pressure adjustment valve body (61) to restrict movement of the pressure adjustment valve body (61).

A solenoid valve for controlling the braking pressure of a wheel brake of a slip-controllable hydraulic brake system of a motor vehicle includes an armature, a valve insert, a valve seat, a valve element, and a spring device. The valve element is arranged in the valve insert in a longitudinally displaceable manner and acts together with the valve seat. The spring applies a force acting in the direction of opening with respect to the valve seat to the valve element in the installed position. The valve element can be actuated by an electromagnetic actuator in the closing direction with respect to the valve seat. The valve element is arranged between an anchor and the valve seat and is operatively connected to the anchor. A front face of the valve element facing the anchor has at least one projection and the projection defines a point of contact with the anchor.

A simulator valve and an electronic brake system using the same are disclosed. The electronic brake system includes a master cylinder provided with at least one cylinder chamber having a volume changeable according to operation of a pedal, a pedal simulator connected to the cylinder chamber, configured to provide reaction force corresponding to a pedal effort of the pedal, a hydraulic-pressure supply device configured to provide hydraulic pressure to at least one wheel cylinder, an electronic control unit (ECU) configured to operate the hydraulic-pressure supply device, and a simulator valve provided in a flow passage through which the master cylinder is connected to the pedal simulator, and provided with a unidirectional flow passage that allows fluid to flow from the pedal simulator to the cylinder chamber and a bidirectional flow passage that is electronically opened or closed.

A pressure control valve for a vehicle is provided. The pressure control valve for a vehicle includes: a valve body having an oil inlet part into which oil discharged from a wheel cylinder flows; a driving part installed in the valve body; a plunger connected to the driving part and movably installed inside the valve body; a valve seat disposed inside the valve body and having an oil passage part formed such that the oil flowing into the oil inlet part is supplied to an accumulator; a first elastic member installed to apply an elastic force to the plunger such that the plunger returns to an original position; an opening and closing member installed in the oil passage part to open the oil passage part when the opening and closing member is pressed by the plunger; and a second elastic member applying an elastic force to the opening and closing member such that the opening and closing member closes the oil passage part.

A valve device includes an operating unit, a first pushing member, a plate-like member, a second pushing member, and a valve. The plate-like member includes a plurality of the moment arms arranged at intervals in a circumferential direction. A force point of each of the plurality of the moment arms is pushed by a front end of the first pushing member. The second pushing member has an acted surface receiving a force from an action point of each of the plurality of the moment arms. The plurality of the moment arms are integrally connected by an annular frame portion of the plate-like member where the fulcrum is disposed.

A solenoid valve includes a magnet assembly, a valve cartridge having a pole core, a valve sleeve connected to the pole core, an armature, and a valve body. The armature is guided in an axially movable manner within the valve sleeve and is coupled to a closing element. The magnet assembly generates a magnetic field via energizing a coil winding. The magnetic field moves the armature counter to a force of a spring. The valve body is positioned within the valve sleeve. A valve seat of the valve body forms a main valve with the closing element that sets a fluid flow between at least one first fluid opening and at least one second fluid opening. A positive connection between the valve sleeve and the valve body is formed to prevent movement of the valve body introduced into the valve sleeve counter to a direction of introduction.

A valve cartridge for a solenoid valve, includes a capsule, a magnet armature which is guided in a movable manner within the capsule, a valve insert, and a valve body which has a main valve seat. The magnet armature, which is moved by a generated magnetic force, acts within the valve insert on a closing device, which has a plunger and a sealing element. The sealing element, in the currentlessly open state, opens up the main valve seat and, in the electrically energized, closed state, projects sealingly into the main valve seat of the valve body. The plunger and the sealing element are formed as separate components, and the sealing element is guided axially and/or radially by a guide device, which includes multiple guide balls arranged between the sealing element and an inner wall of the valve insert.

A valve for metering a fluid, for example, a fuel injection valve for an internal combustion engine, includes a valve-seat face, an electromagnetic actuator including an armature that includes a through-flow channel that opens with an outlet opening at an end face of the armature, a valve needle on which the armature is movably supported and that is operable using the armature, a valve-closing member that is actuatable by the valve needle and that cooperates with the valve-seat face to form a sealing seat, and a stop element that is mounted fixedly on the valve needle and that interacts with the at least one outlet opening of the at least one through-flow channel such that throttling takes place with respect to the least one through-flow channel when the armature is located with its end face at the stop element.

The invention relates to a solenoid valve or an aircraft anti-ice system. The solenoid valve comprises: a solenoid; a yoke arranged to be actuated by the solenoid between a first yoke position and a second yoke position; and a plunger arranged to be actuated between a first plunger position and a second plunger position to control fluid flow between fluid channels. The plunger comprises a magnetic element proximate the yoke. There is a gap between the plunger and the yoke when the yoke is in the second yoke position, so that magnetic force acting on the magnetic element of the plunger urges the plunger to the second plunger position.

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.