An electric ball valve, comprising: a shaft portion, a magnetic ring, and a Hall sensor, the Hall sensor being in electrical and signal connection with a circuit board, the shaft portion being connected to an output shaft and capable of rotating along with the output shaft, the magnetic ring being sleeved on the radial periphery of the shaft portion, and the magnetic ring being capable of rotating along with the shaft portion; and a cushioning portion, the cushioning portion directly or indirectly abutting against an end of the shaft portion. Also provided is a method for manufacturing an electric valve. The present electric ball valve is provided with the cushioning portion at the end of the shaft portion, thereby facilitating reducing downward plays of the magnetic ring and the shaft portion in the axial direction during rotation along with the output shaft.

An overfill valve associated with a drop tube segment fluidly connected to a fluid reservoir is described. The overfill valve includes a valve body positioned within the drop tube segment and a non-contact valve actuator positioned exterior to the drop tube segment and operable to actuate the valve body from an open position to a closed position without requiring any physical penetration through the wall of the drop tube segment. The non-contact valve actuator has a first position in which the non-contact valve actuator does not actuate the valve body from the open position to the closed position in a second position, achieved when the liquid reservoir reaches a predetermined level approaching the capacity of the liquid reservoir, the non-contact valve actuator actuating the valve body from the open position to the closed position when the non-contact valve actuator obtains the second position.

A pneumatic valve includes a housing, a first port, a second port, and a third port, each in communication with an interior of the housing, a coil assembly coupled to the housing, a plunger axially movable within the housing between a first position and a second position in response to electrical current being driven through the coil assembly, and a permanent magnet configured to retain the plunger in at least one of the first position or the second position.

A solenoid valve has a housing which comprises a first and a second housing part, wherein a flexible diaphragm is arranged between the first and the second housing part. A movably mounted actuating element is provided which is connected to the diaphragm and detaches the diaphragm from a valve seat in an operating position of the first and the second housing part upon movement into an open position, and which presses the diaphragm onto the valve seat upon movement into a closed position. The first and the second housing part can take up a service position in which the diaphragm is accessible. The diaphragm is connected with a positive fit to the actuating element in a nondestructively detachable manner such that in the service position, the diaphragm can be removed from the actuating element by releasing the positive fit and can be connected thereto by establishing a positive fit. An assembly and a method of replacing a diaphragm are furthermore proposed.

A solenoid valve has a housing which comprises a first and a second housing part, wherein a flexible diaphragm is arranged between the first and the second housing part. A movably mounted actuating element is provided which is connected to the diaphragm and detaches the diaphragm from a valve seat in an operating position of the first and the second housing part upon movement into an open position, and which presses the diaphragm onto the valve seat upon movement into a closed position. The first and the second housing part can take up a service position in which the diaphragm is accessible. The diaphragm is connected with a positive fit to the actuating element in a nondestructively detachable manner such that in the service position, the diaphragm can be removed from the actuating element by releasing the positive fit and can be connected thereto by establishing a positive fit. An assembly and a method of replacing a diaphragm are furthermore proposed.

A method for detecting the position of an actuator includes adjustment of a control valve by an actuator. An actuator-characteristic operating variable may include a drive power, a drive operating force and/or a drive torque, and is detected continuously or discontinuously for determining the actuator position.

An actuator is driven by a brushless motor having a rotor with axially extended magnets, permitting axial movement of the rotor while maintaining overlap between the magnets and a stator secured in a fixed position. The rotor is engaged with a fixed structure by a connection such as a ramp or thread that translates rotation into axial movement of the rotor along a rotational axis of the actuator. A valve member coupled to the rotor moves axially between a closed position and a range of positions that regulate fluid flow through a valve. A motor control circuit applies power to the stator coils to rotate the rotor and coupled valve member to a desired axial position and maintain the rotor and valve member at the selected position. The rotor and valve member may be biased toward a rotational position corresponding to a closed position of the valve member.

Disclosed is a four-way reversing valve, including a valve body, a motor transmission structure, and a reversing valve disc; the valve body includes a valve seat, an insulation sleeve welded to upper end surface of the valve seat, a D pipe, an S pipe, a C pipe, and an E pipe connected to lower end surface of the valve seat; the motor transmission structure includes motor worm gear and shaft transmission assembly and a planetary gearbox kit; the motor worm gear and shaft transmission assembly is sleeved onto upper external wall of the insulation sleeve through shaft hole of an external drive sprocket, and a non-through blind-hole is formed in a valve seat center; a central shaft is embedded into the blind-hole, and the central shaft connects the reversing valve disc and the planetary gearbox kit; the reversing valve disc and the planetary gearbox kit are inside the insulation sleeve.

A solenoid valve has a housing which comprises a first and a second housing part, wherein a flexible diaphragm is arranged between the first and the second housing part. A movably mounted actuating element is provided which is connected to the diaphragm and detaches the diaphragm from a valve seat in an operating position of the first and the second housing part upon movement into an open position, and which presses the diaphragm onto the valve seat upon movement into a closed position. The first and the second housing part can take up a service position in which the diaphragm is accessible. The diaphragm is connected with a positive fit to the actuating element in a nondestructively detachable manner such that in the service position, the diaphragm can be removed from the actuating element by releasing the positive fit and can be connected thereto by establishing a positive fit. An assembly and a method of replacing a diaphragm are furthermore proposed.

The present disclosure relates to a fluid supply system for a machine. The fluid supply system includes a throttle assembly having a first shaft attached to a valve member and a fluid shutoff assembly. The fluid shutoff assembly includes a second shaft, a locking member having an axis parallel to an axis of the second shaft and comprising a locking arm extending toward the second shaft, a biasing member fixedly attached to the second shaft, a releasing mechanism adjacent to the locking member that rotates the locking member about the longitudinal axis of the locking member, and a coupler comprising a first coupling hub attached to the first shaft and a second coupling hub attached to the second shaft and interfaced with the first coupling hub.