Abstract: A control device and a control method for variable valve timing mechanism according to the present invention obtains a first measurement of a rotational phase based on a rotational angle of the motor, obtains a second measurement of the rotational phase based on a relative relationship between a rotational angle of the crankshaft and a rotational angle of the camshaft, calibrates the first measurement based on the second measurement, obtains a derivative term proportional to a rate of change in a deviation between the first measurement and a target value, reduces change in derivative term when calibrating the first measurement based on the second measurement, and controls the motor based on a manipulated variable including the derivative term.

Abstract: A fluid pump includes a pump body with a manual operation bulb or a power supply unit provided on an upper end and an inlet and an outlet provided on both sides of a liquid passage. A suction pipe connected to the inlet of the pump body includes a bendable part between an upper suction pipe part and a lower suction pipe part which are formed in a rigid rod shape. A discharge hose shaped as a bellows tube is connected to the outlet of the pump body. A pipe sleeve has ends partially fitted into the upper suction pipe part and the lower suction pipe part. It is installed on the outer circumferential surface of the suction pipe and shaped as a cylinder or a “C” with one end cut out from the cylinder to facilitate moving its position from the bending part to the upper suction pipe part.

Abstract: A pump, comprising a rotor axially located between a fluid inlet section and a fluid outlet section, wherein the rotor is configured to rotate about a center axis, a stator surrounding the rotor, wherein the stator includes an inner diameter surface and an outer diameter surface, wherein the inner diameter surface includes a groove surrounding the stator and concentric about the center axis, and a ring surrounding the stator, wherein the ring is adjacent to the groove and defines a gap between an outer diameter of the surface and an inner surface of the ring, wherein the ring includes a ring mass and the stator includes a stator mass, and the ring mass is substantially equal to the stator mass.

Abstract: The present disclosure relates to a technical field of fluid delivering. An electromagnetic pump is provided. The electromagnetic pump includes a drive mechanism and a magnetic assembly, where the magnetic assembly is configured to be driven by the drive mechanism to generate a varying magnetic field.

Abstract: A system attachable to a refrigeration circuit includes a recovery pump attachable to the refrigeration circuit to remove refrigerant. The recovery pump includes a pump, an electric motor, a battery pack, and a recovery pump controller for controlling the operation of the electric motor. The recovery pump controller has a first communication interface. The system further includes an accessory attachable to the refrigeration circuit concurrently with the recovery pump. The accessory includes a sensor for detecting a characteristic value of the refrigeration circuit, and an accessory controller electrically connected with the sensor to receive a signal corresponding with the characteristic value of the refrigeration circuit. The accessory controller has a second communication interface to communicate the signal to the recovery pump controller via the first and second wireless interfaces. The recovery pump controller controls the operation of the electric motor based upon the signal received from the accessory.

Abstract: An axial fan includes a rotor, a rotor blade, a stator, and a housing. The housing includes a stator holder made of metal, a base made of metal and widened outwardly in a radial direction from a lower end portion of the stator holder, a rib extending outwardly in the radial direction from the base, and a housing cylinder connected to a radial-directional outer end portion of the rib. The housing cylinder extends in an axial direction and accommodates the rotor blade therein. A wind tunnel space in which air flows is provided between the base and the housing cylinder in the radial direction. A radial-directional outer side surface of the base is exposed in the wind tunnel space.

Abstract: A pressproof fan structure includes: a fan frame having an upper case and a lower case; a support shaft having one end inserted into the lower case, and the other end protruding out from the upper case; an oil-retaining bearing having a bearing hole, in which the support shaft is fitted; a rotor assembly fitted around and connected with the oil-retaining bearing; a restriction member fitted around the support shaft near the oil-retaining bearing; a thrust member fitted around the support shaft near the oil-retaining bearing; and a stator assembly disposed on the lower case near the oil-retaining bearing without contacting.

Abstract: A micro piezoelectric pump module includes a microprocessor, a driving element, and a piezoelectric pump. The driving element is connected to the microprocessor to receive a modulating signal and a control signal and to output a driving signal. The driving signal includes a driving voltage and a driving frequency. The piezoelectric pump is actuated by the driving signal, and the piezoelectric pump is set to be actuated at an actuation frequency and be applied with an actuation voltage value. The microprocessor drives the driving element to output the driving voltage having an initial voltage value at the driving frequency to the piezoelectric pump, and adjusts the driving frequency to the same with the actuation frequency. After the driving frequency is adjusted to reach the actuation frequency, the microprocessor drives the driving element to gradually increase the initial voltage value to reach the actuation voltage value.

Abstract: A valve for controlling at least one first flow of at least one fluid, in particular, within a motor vehicle, along a first fluid path from at least one valve inlet to at least one valve outlet, comprising at least one valve seat that is arranged—with regard to the fluid flow—between the valve inlet and the valve outlet, wherein the valve seat can be closed at least in some regions in at least one closed position by means of at least one valve member.

Abstract: The present invention relates to a linear compressor. The linear compressor according to an aspect of the present invention includes a spring axially elastically supporting a driving assembly. The spring includes a spring body axially extending, a front spring link forming an end of the spring body by extending from a side of the spring body, and a rear spring link forming the other end of the spring body by extending from the other side of the spring body. Any one of the front spring link and the rear spring link is fixed to the driving assembly and the other one is fixed to a supporting assembly.

Abstract: A fan is for improving air quality, such as in an indoor environment. The fan includes a motor and a rotatable hub coupled to the motor. At least one fan blade includes a first end portion coupled to the rotatable hub and a second end portion radially distant from the rotatable hub. At least one ion generator is carried by the second end portion of the at least one fan blade, such as by a winglet associated therewith. A stationary tube passes through the rotatable hub including a conduit for transmitting power. A rotary coupling is also provided for transmitting power from the conduit to the at least one ion generator.

Abstract: A camshaft phaser routes pressurized fluid from a set of chambers that are decreasing in volume to a reservoir. Oscillations of the rotor with respect to the stator create intervals in which the pressure in the reservoir exceeds the pressure in the set of chambers which are increasing in volume. During these intervals, fluid flows from the reservoir, through one-way valves, into the chambers which are increasing in volume. Pressurization of the reservoir increases the volume of flow through the one-way valves, decreasing the pump flow requirement for the camshaft phaser.

Abstract: A centrifugal pump to improve the efficiency of fluid flow, and minimize long term wear on the pump by progressively increasing fluid pressure as fluid moves from an eye of an impeller towards diffuser blades, into the volute and out through an outlet that is medio-laterally aligned with an inlet. The fluid pressure is increased by progressively increasing the volume through which the fluid travels. A tear-drop shaped volute casing surrounding the diffuser and impeller creates a pocket of maximum pressure just below the outlet. A dampener dampens the vibration of the motor. A cylindrical basket strainer is provided with a flat face abutting against the volute casing to distribute pressure evenly. A clamp ring is provided to easily seal and access the basket strainer using a plain rod.

Abstract: A sump pump system includes a plurality of sump pumps adapted to be disposed within a crock. The sump pump system also includes a plurality of water level sensors adapted to be disposed within the crock. Each of the plurality of water level sensors generates water level signals. The sump pump system further includes a plurality of electronic controllers. Each of the plurality of water level sensors is connected to each of the plurality of electronic controllers, and each of the plurality of electronic controllers is connected to operate each of the plurality of sump pumps in response to the water level signals.

Abstract: A fluid moving apparatus includes an electric motor having a rotor and a stator and a fluid displacement member. The rotor rotates relative to the stator on a common axis to generate a rotational output. The rotational output is provided to the fluid displacement member to power the fluid displacement member to one of move linearly along and rotate about the common axis. The stator includes one or more coils configured to power rotation of the rotor. The one or more coils extend circumferentially around and can be coaxial on the common axis.

Abstract: A pre-assembled module for a variable-stroke valve drive of an internal combustion engine is provided. The module includes a base plate having at least one projecting guide plate, an e-linear actuator positioned on the projecting guide plate, and a longitudinally guided push rod with two adjusting fingers extending along a wall of the guide plate. Each respective adjusting finger has a contact surface for displacement of a transverse coupling slide of a switchable cam follower. A rocker arm, having first and second arms, is suspended on an underside of the base plate; the first arm in contact with an adjusting pin of the linear actuator; and, the second arm in contact with the push rod for displacement thereof in a first direction. A spring means for displacement of the push rod in a second direction is arranged between the push rod and the guide plate.

Abstract: A vacuum pumping arrangement comprises a first pump which has a first inlet and a first outlet. The first inlet is fluidly connected to a first common pumping line. The first common pumping line includes a plurality of first pumping line inlets each of which is fluidly connectable to a least one process chamber within a group of process chambers that form a semiconductor fabrication tool. The vacuum pumping arrangement also includes a reserve pump which has a reserve inlet and a reserve outlet. The reserve inlet is selectively fluidly connectable to each process chamber within the group of process chambers that form the semiconductor fabrication tool. The vacuum pumping arrangement additionally includes a controller which is configured to selectively fluidly isolate the pump from one or more given process chambers and selectively fluidly connect the reserve pump with the said one or more given process chambers.

Abstract: A portable tool, capable of being moved by persons, users and/or operators, includes a motor; a fluid reservoir; a pump connected to the reservoir and the motor; a work cylinder connected to an output of the pump; an actuable tool component connected to the work cylinder; a sensor in the recue tool connected to any one or more than one of the motor, the reservoir, the pump, the work cylinder, and the tool; a controller configured to receive measurement signals from the sensor; and at least one controlled valve in a hydraulic circuit defined by the reservoir, the pump and the work cylinder and connected to the controller. The controlled valve and the controller are configured to selectively at least substantially block or open any fluid channel in the hydraulic circuit. A pump of or for such a rescue tool.

Abstract: A hydraulics unit for an internal combustion engine with a hydraulically variable gas exchange valve gear, is provided that includes a hydraulic housing having a pressure chamber, a pressure relief chamber and a venting duct. The venting duct is connected, on a hydraulic housing inner side, to the pressure relief chamber via a restriction and opens on a hydraulic housing outer side. The venting duct has a siphon with a downward first duct section and an upward second duct section, respectively in the direction of gravity and in the venting direction. When a gas exchange valve is closed, a lowermost section of the siphon is below a boundary of a pressure chamber defined by a slave piston.

Abstract: A fluid supply system includes a fluid delivery system, a sensor positioned to acquire data regarding an operating characteristic and/or a component characteristic of the fluid delivery system, and a monitoring system coupled to the sensor. The fluid delivery system includes a pump having an inlet configured to receive a fluid, an outlet configured to provide a pressurized fluid to a fluid output, a housing defining a chamber that couples the inlet to the outlet, an impeller disposed within the chamber, and an input coupled to the impeller. The input is configured to facilitate driving the impeller to pressurize the fluid received at the inlet to generate the pressurized fluid within the chamber. The monitoring system is configured to determine a health level of a component of the fluid delivery system based on the data and provide a notification in response to the health level not satisfying a threshold.