A flush valve assembly has a pilot valve and a drive train for selective driving the pilot valve between an open position and a closed position. The drive train has a drive gear coupled to a motor for rotating the drive gear and a valve gear coupled to the pilot valve and intermeshing with the drive gear. At least one of the drive gear and the valve gear have a flag extending outwardly therefrom. A sensor positioned to detect the flag and establish a rotational position of the drive gear and the valve gear to thereby establish an opened or closed position of the pilot valve.

The present invention is a flow-rate adjustable valve for adjusting a flow rate of liquid flowing through a flow path. The flow-rate adjustable valve includes: a main valve body movably supported in the flow path via a diaphragm membrane; a back pressure chamber; a plurality of inlet holes communicating the upstream side of the flow path with the back pressure chamber; an outlet hole communicating a downstream side of the flow path with the back pressure chamber; and a pilot valve body for opening and closing the outlet hole, wherein moments acting on the main valve body based on the liquid flowing into the back pressure chamber through the plurality of inlet holes are canceled by each other in total, under a condition in which the pilot valve body opens the outlet hole.

A pilot valve assembly (10) includes a cylindrical connector (12) having a first end portion (16) with external threading (18) for engaging a threaded control socket (106) of a hydraulic valve (100), and a second end (20) with an array of teeth (22) arrayed around its edge. A circumferential slot (24) around connector (12) is spaced from second end (20). The assembly also includes a pilot valve (26) with a mechanism for controlling a pressure within the hydraulic control valve actuator chamber. Pilot valve (26) is formed with a recess (28) having a complementary teeth (30) for engaging teeth (22) of connector (12) in a range of angular orientations. A clamping arrangement engages slot (24) and clamps pilot valve (26) to second end (20) of connector (12), thereby fixing an angular orientation of the pilot valve.

A solenoid valve for irrigation systems may comprise a gardening tube, a plastic valve piece, a cover and a magnetic member. The gardening tube has a water inlet channel and a water outlet channel which are communicated, and a valve tube vertically extending from the gardening tube has a valve chamber. The valve piece is positioned in the valve chamber. A second connecting tube vertically protruding from the cover has a housing communicated with the valve chamber, and a solenoid coil and a metal ring are respectively disposed on the second connecting tube. The magnetic member has a magnet installed therein, and the magnet has a first magnetic surface and a second magnetic surface at two ends thereof.

A flow regulating switch valve includes a valve core that includes a switch assembly configured to drive a diaphragm assembly to open or close a water outlet, and also includes a flow regulating assembly that comprises a rotating ring, a sliding block, and a magnet. A control key is configured to control the switch assembly. The rotating ring is connected to the control key and includes an inclined plane that transitions from high to low and is configured to drive the sliding block to slide up and down such that the sliding block drives the magnet to move up and down. The magnet is configured to control the diaphragm assembly to regulate a size of the water outlet.

A venting apparatus is provided for regulating discharge of fuel vapor from a fuel tank and admission of outside air into the fuel tank.

A solenoid valve for irrigation systems may comprise a gardening tube, a plastic valve piece, a cover and a magnetic member. The gardening tube has a water inlet channel and a water outlet channel which are communicated, and a valve tube vertically extending from the gardening tube has a valve chamber. The valve piece is positioned in the valve chamber. A second connecting tube vertically protruding from the cover has a housing communicated with the valve chamber, and a solenoid coil and a metal ring are respectively disposed on the second connecting tube. The magnetic member has a magnet installed therein, and the magnet has a first magnetic surface and a second magnetic surface at two ends thereof.

The present invention discloses a stator assembly with water-isolating sleeve applied to solenoid valve for water and implementation method thereof, the implementation method comprising: forming a coil assembly with a cavity by installing an element including an insert on a coil rack wound with a coil winding; forming a stator assembly by installing an upper magnetic conductive inner sleeve and a lower magnetic conductive inner sleeve at both sides in a holein the coil rack of the coil assembly, and fixing the yoke connecting the upper magnetic conductive inner sleeve and the lower magnetic conductive inner sleeve outside the coil assembly; injecting plastic on the stator assembly to form the stator assembly with water-isolating sleeve.

An inductive shower head, comprising an outer shell which is provided with a water inlet and multiple groups of water outlet holes; a third water outlet cavity and a first water outlet cavity which are independent of each other inside the outer shell can be communicated with the corresponding groups of the water outlet holes respectively, a third water inlet cavity is arranged between the first water inlet cavity and the third water outlet cavity; the first water inlet cavity is communicated with the third water inlet cavity; the position where the third water inlet cavity is communicated with the third water outlet cavity is correspondingly provided with a control assembly which uses an electromagnet to control the two cavities to communicate with or block from each other; the shower head also comprises a first inductor and a power supply unit which is used for supplying power to the electromagnet.

A flush valve assembly has a pilot valve and a drive train for selective driving the pilot valve between an open position and a closed position. The drive train has a drive gear coupled to a motor for rotating the drive gear and a valve gear coupled to the pilot valve and intermeshing with the drive gear. At least one of the drive gear and the valve gear have a flag extending outwardly therefrom. A sensor positioned to detect the flag and establish a rotational position of the drive gear and the valve gear to thereby establish an opened or closed position of the pilot valve.