A water delivery control system operates to selectively deliver water from a water source to water use devices. The system includes at least one controller that wirelessly communicates messages with a portable user device. The system includes a water control valve and a motor that is operative to selectively move at least one valve element of the valve. A water meter is operative to measure water flow that corresponds to flow through the valve. The controller is operable to cause the valve to enable or prevent flow through the valve responsive at least in part to water flow data. The controller is operative to determine a water use condition responsive to a water usage pattern, and to cause at least one message to be sent to the portable user device responsive to the determined water use condition.

A valve includes an actuation assembly including a drive device that generates a driving force, a needle shaft connected, at one end thereof, to the drive device to receive the driving force from the drive device and perform linear motion, a needle nut that is coupled to the drive device and that has an empty space through which the needle shaft passes, so as to guide the linear motion of the needle shaft, and a valve disc coupled to an opposite end of the needle shaft, a body is coupled with the actuation assembly and that has a valve opening inside, the valve opening being selectively opened or closed as the valve disc, which is inserted into the body in which water flows, performs linear motion, and a clip that fixes the body and the actuation assembly such that the body and the actuation assembly are not separated from each other.

An actuator (1) comprising a motor (2) assembly, a drive coupling (113, 13, 313) assembly and an actuator shaft (114, 14). The motor (2) assembly comprising a motor housing (120, 20), having a cover (122, 22) and a base (123, 23); an electric motor (111, 11, 211, 2), comprising an external stator (111, 11, 211) and an internal rotor (112, 12); and a hollow output shaft (130, 30, 330) that is connected co-axially with the internal rotor (112, 12) such that rotation of the internal rotor (112, 12) causes a corresponding rotation of the hollow output shaft (130, 30, 330). The drive coupling (113, 13, 313) assembly comprises a drive coupling housing (115, 15, 315) containing a drive coupling (113, 13, 313), wherein the drive coupling (113, 13, 313) engages the hollow output shaft (130, 30, 330) such that rotation of the hollow output shaft (130, 30, 330) causes a corresponding rotation of the drive coupling (113, 13, 313). The actuator shaft (114, 14) extends through the hollow output shaft (130, 30, 330) and the internal rotor (112, 12), and engages the drive coupling (113, 13, 313) such that rotation of the drive coupling (113, 13, 313), by the hollow output shaft (130, 30, 330), causes the actuator shaft (114, 14) to move axially.

An actuator (1) comprising a motor (2) assembly, a drive coupling (113, 13, 313) assembly and an actuator shaft (114, 14). The motor (2) assembly comprising a motor housing (120, 20), having a cover (122, 22) and a base (123, 23); an electric motor (111, 11, 211, 2), comprising an external stator (111, 11, 211) and an internal rotor (112, 12); and a hollow output shaft (130, 30, 330) that is connected co-axially with the internal rotor (112, 12) such that rotation of the internal rotor (112, 12) causes a corresponding rotation of the hollow output shaft (130, 30, 330). The drive coupling (113, 13, 313) assembly comprises a drive coupling housing (115, 15, 315) containing a drive coupling (113, 13, 313), wherein the drive coupling (113, 13, 313) engages the hollow output shaft (130, 30, 330) such that rotation of the hollow output shaft (130, 30, 330) causes a corresponding rotation of the drive coupling (113, 13, 313). The actuator shaft (114, 14) extends through the hollow output shaft (130, 30, 330) and the internal rotor (112, 12), and engages the drive coupling (113, 13, 313) such that rotation of the drive coupling (113, 13, 313), by the hollow output shaft (130, 30, 330), causes the actuator shaft (114, 14) to move axially.

A fluid control device includes a body having an inlet, an outlet, and a fluid flow path between the inlet and the outlet, a seat, and a control element that is coupled to a stem. The control element and the stem are movable along a first axis and biased toward a closed position in which the control element engages the seat. The fluid control device includes an actuator assembly including a shaft that is operatively coupled to the stem via a Scotch yoke mechanism such that rotation of the shaft in a first rotational direction causes movement of the stem and control element along the first axis in a first translational direction. The actuator assembly includes a trigger mechanism that is responsive to fluid pressure and prevents rotation of the shaft in a first mode of operation and releases the shaft to allow rotation in a second mode of operation.

A fluid control device includes a body having an inlet, an outlet, and a fluid flow path between the inlet and the outlet, a seat, and a control element that is coupled to a stem. The control element and the stem are movable along a first axis and biased toward a closed position in which the control element engages the seat. The fluid control device includes an actuator assembly including a shaft that is operatively coupled to the stem via a Scotch yoke mechanism such that rotation of the shaft in a first rotational direction causes movement of the stem and control element along the first axis in a first translational direction. The actuator assembly includes a trigger mechanism that is responsive to fluid pressure and prevents rotation of the shaft in a first mode of operation and releases the shaft to allow rotation in a second mode of operation.

An evaporative emissions control system includes a first vent valve configured to selectively open and close a first vent, a second vent valve configured to selectively open and close a second vent, a fuel level sensor configured to sense a fuel level in the fuel tank, a pressure sensor configured to sense a pressure in the fuel tank, an accelerometer configured to measure an acceleration of the vehicle, and a controller configured to regulate operation of the first and second vent valves to provide pressure relief for the fuel tank. The controller is programmed to determine if a refueling event is occurring based one signals indicating the fuel level is increasing, the pressure in the fuel tank is increasing, and the vehicle is not moving, and open at least one of the first and second vent valves based on determining the refueling event is occurring.

An evaporative emissions control system includes a first vent valve configured to selectively open and close a first vent, a second vent valve configured to selectively open and close a second vent, a fuel level sensor configured to sense a fuel level in the fuel tank, a pressure sensor configured to sense a pressure in the fuel tank, an accelerometer configured to measure an acceleration of the vehicle, and a controller configured to regulate operation of the first and second vent valves to provide pressure relief for the fuel tank. The controller is programmed to determine if a refueling event is occurring based one signals indicating the fuel level is increasing, the pressure in the fuel tank is increasing, and the vehicle is not moving, and open at least one of the first and second vent valves based on determining the refueling event is occurring.

A gear of a speed reducer of an actuator includes: an insert component; a center portion; an outer peripheral portion; a connecting portion; a gate mark; a weld-line portion; and a rib-shaped portion. The center portion surrounds the insert component. The outer peripheral portion includes a toothed portion and a toothless portion. The weld-line portion is formed in at least one of the center portion, the connecting portion and the outer peripheral portion at a location which is on a radially inner side of the toothless portion. The rib-shaped portion is formed in at least one of the center portion, the connecting portion and the outer peripheral portion at a location which includes the weld-line portion. The rib-shaped portion has a wall thickness that is larger than a wall thickness of another circumferential portion.

The present disclosure relates to the technical field of pipeline equipment, and discloses a transmission part, a valve drive assembly and a valve. The valve drive assembly includes a first transmission part, a second transmission part and a driving part, the first transmission part is configured to be detachably connected with the rotating shaft of the valve; the second transmission part is in transmission connection with the first transmission part, and can move in an axial direction of the rotating shaft relative to the first transmission part; the driving part is used to drive the second transmission part to rotate so as to drive the first transmission part and the rotating shaft of the valve to rotate. With the application of the valve drive assembly of the present disclosure, even if the rotating shaft moves axially in the process of rotation, the first transmission part moves therewith, and can always maintain cooperation with the second transmission part, thus realizing the transmission between the two. Therefore, the valve drive assembly can be adapted to the axial displacement of the rotating shaft, and has better adaptability. The transmission part provided in the present disclosure can be applied to the above-mentioned valve drive assembly. The valve provided in the present disclosure includes the valve drive assembly described above.