摘要:
A three part valve is provided. The valve has a housing (10) having three axially spaced inlet ports (12, 16, 22) and an outlet port (26). A rotary valve assembly with a modular rotor is provided for controlling fluid communication between the inlet ports (12, 16, 22) and the outlet port (26). The rotary valve assembly includes a shaft (30). Additionally there is provided a first generally cylindrical valve module (32) torsionally affixed with the shaft (30) for controlling fluid communication between a first inlet port (12) and the outlet port (26). The rotary valve assembly also includes a second generally cylindrical valve module (46) rotatably mounted on the shaft (30) controlling fluid communication between a second inlet port (16) and the outlet port (26). The second valve module (46) has a coupling interface (47) with the first valve module (32). A third generally cylindrical valve module (50) is also provided rotatably mounted on the shaft (30). The third cylindrical valve module (50) controls fluid communication between a third inlet port (22) and the outlet port (26). The third valve module (50) has a coupling interface (53) with the second valve module (46).
摘要:
The invention relates to an actuator, in particular intended for being integrated in a valve (10) for a motor vehicle engine, including: an electric motor (18) suitable for moving an element, in particular a member (16) for fluid control of the valve; a filtering component arranged so as to reduce the parasitic electromagnetic emissions generated by the electric motor; and a printed circuit board (26) supporting the filtering component, the filtering component including an inductor suitable for reducing the parasitic electromagnetic emissions generated by the electric motor.
摘要:
When both a position sensor (407) and a motor (408) are malfunction, an ECU (500) limits the engine rotation speed to such a speed range that the pressure inside a circulation route remains at or below a predetermined value even when the opening degree of a control valve (4) is a minimum opening degree. When the position sensor (407) is malfunction but the motor (408) is not malfunction, the ECU (500) relaxes the limits on the engine rotation speed, compared with when both the position sensor (407) and the motor (408) are malfunction, by driving the motor (408) to an end of a motion range thereof and increasing the opening degree of the control valve (4) to an opening degree larger than the minimum opening degree.
摘要:
To provide a mechanism in which a moving body can be stored in a housing. A gate valve has a slide plate and a moving mechanism for changing the positions in the radial and axial directions of the slide plate. A shaft is a rotating shaft the axial displacement of which is controlled by an axial driving mechanism and the angle of rotation of which is controlled by a radial driving mechanism, and is turnably supported in the housing by a shaft supporting spring consisting of a magnetic bearing and a conical coil spring. By controlling the attraction force of a balance weight in an electromagnet, the shaft can be moved in the radial direction. Also, by controlling the attraction force of an electromagnet target in the electromagnet, the shaft can be moved in the axial direction.
摘要:
A water valve assembly including a housing, an inlet chamber defining a water inlet for receiving a flow of water into the inlet chamber and a valve for controlling the flow of water through the inlet into the inlet chamber. A mixing chamber is connected to the inlet chamber so as to receive water from the inlet chamber, the mixing chamber defining a supplementary water inlet for receiving a supplementary flow of water and defining a mixed water outlet from which a mixture of water from the inlet chamber and the supplementary water inlet may be provided. The inlet chamber and the mixing chamber are both provided within the first housing and are arranged one within the other. A second housing may be provided with an inlet chamber, a valve for controlling flow of water into the inlet chamber and a supplementary water outlet for connection to the supplementary water inlet of the first housing. The two housings can be arranged in a relatively flat configuration with water connections at an inlet end of the assembly and control connections at a control end of the assembly.
摘要:
A method for controlling fluid flow. A fluid (560) can be communicated to a first fluid flow port (105) disposed adjacent to a first surface (196) of a rotatable disk (115) of a homopolar motor. The fluid can flow through at least one orifice (130) in the rotatable disk to a second fluid flow port (110). The rotation of the disk can be selectively controlled to vary a fluid flow rate. Further, the disk can be rotated to align a selected one of the orifices with at least one of the first and second fluid flow ports. In another arrangement, the shape of the orifice can have a radial width that increases in a circumferential direction.
摘要:
Disclosed is an electric motor driven actuator comprising an electronically switchable direct-current synchronous motor (10) and a device working with position sensors for contactless detection of the position of the rotor (14) of the motor (10). The inventive actuator is especially suitable for directly driving the final control element (34) of a valve arrangement (32) in a motor vehicle, preferably in an engine cooling circuit or as a throttle valve. High positional accuracy is obtained by virtue of the fact that the position sensors (22) are spatially associated with a magnetic field device (18) for the magnetic field of the rotor (24).
摘要:
A 'plug and play' process control valve 10 providing closed loop feedback control has a built in microprocessor 40, stepper-motor 20, a position encoder, a valve body having an inlet 11 and an outlet 12, and pressure sensors 30, 31 positioned within the inlet 11 and the outlet 12 of the valve body, the pressure sensors being connected to the microprocessor 20, which is in turn connected to an input from the position encoder, and provided with outputs to the stepper-motor 40. Within the valve body there are a pair of apertured ceramic shear action discs 13, 14. The stepper-motor rotates the upper disc 14 relative to the apertured stator disc 13 to control pressure or flow in the pipeline.