Abstract: A venturi mixer has first and second fluid input sections, an output section and a throat. The first fluid input section has first and second ends, and a decreasing cross sectional area from the first end to the second end. The throat is disposed at the second end of the first fluid input section and has a plurality of orifices. The output section has a first end connected with the throat and a second end, and an increasing cross sectional area from the first end to the second end. The second fluid input section has an inlet and a housing connected to the inlet and enclosing the orifices of the throat.

Abstract: An electric pump has a pump casing, a sealing plate, an impeller and a motor for driving the impeller. The pump casing has a main body. A recess is formed in the main body and with the sealing plate defines a pump chamber. A suction port is connected to the pump chamber by a suction channel and a suction passage formed in the main body. A discharge port is connected to the pump chamber by a discharge channel. The suction passage extends axially from the recess. The recess, suction passage, suction channel and discharge channel are all shaped in a manner allowing the pump casing can be molded as a monolithic structure in a single injection molding process.

Abstract: A liquid pump has a pump housing defining a pump chamber. A motor is accommodated within the pump housing and separated from the pump chamber by an end cap. An impeller disposed within the pump chamber is driven by the motor. The pump chamber has an inlet and one or more outlets. The outlets are located on a sidewall of the pump chamber and extend in a direction substantially tangential to an outer circumference of the pump chamber. Each outlet has a first end near the pump chamber, and a second end remote from the pump chamber. A cross-sectional area S1 of the first end is smaller than a cross-sectional area S2 of the second end, forming a diffuser within the outlet.

Abstract: A household appliance has a container for receiving working material and a housing that is isolated from the container by a wall. A rotatable working tool disposed inside the container. A motor for driving the working tool has a stator and a rotor. The stator is disposed within the housing so as to be isolated from the working material of the container. The rotor is disposed within the container and the working tool is preferably fixed to a shaft of the rotor.

Abstract: A particle separation device includes a particle separation member having a plurality of conical cavities each having a narrow open end and a wide open end for separating particles from unclean liquid; a fluid distribution member for distributing the liquid to the cavities; a particle collection member for collecting particles; and a fluid guiding member for guiding cleaned liquid from the particle separation member to an outlet of the device. The particle collection member includes a chamber and a magnet for holding particles inside the chamber. A vortex finder is disposed in each of the cavities. The vortex finder has a skirt portion and a distal end having a reduced wall thickness.

Abstract: A blower includes a casing having an air inlet, an electric motor having a rotor and a stator, an impeller driven by the motor, and a diffuser for directing air from the impeller. The impeller and the diffuser are received in the casing. The impeller has a base and blades supported by the base. The diffuser has a plate like portion with diffuser vanes surrounding the impeller. Inlet angles of the impeller blades is between 20˜30 degrees and outlet angles of the impeller blades is between 26˜38 degrees.

Abstract: A particle separator includes a particle separation member to separate particles from liquid; a particle collection member for collecting particles from the particle separation member; and a liquid guiding member for guiding liquid flowing from the particle separation member to an outlet. The particle separation member includes an inlet for receiving un-clean liquid, a first separation section configured for preliminarily separating particles from the liquid, and a second separation section for separating further particles from liquid flowing from the first separation section. The second separation section includes a plurality of cyclones each having a wide open end connected to the first separation section and a narrow open end connected to the particle collection member.

Abstract: A centrifugal pump has an electric motor, an impeller driven by the motor and a spiral volute. The impeller has an annular base plate and a plurality of vanes arranged on the base plate. The spiral volute has an inlet, an outlet and an impeller chamber in which the impeller is disposed. The inlet extends outwardly from a top wall of the volute. The outlet extends outwardly from a side wall of the volute in the spiral direction of the volute. The spiral volute has a wrap angle between 360 to 460 degrees. A washing apparatus incorporating the centrifugal pump is also provided.

Abstract: A blower for a vacuum cleaner has a diffuser with an increased efficiency by coupling the attack angle A of the diffuser vanes with the attack angle B of the return guide vanes where angle A is between 4° and 6° and angle B is between 6° and 20°.

Abstract: A display device comprises a housing, an image capture device and a screen mounted to the housing. A drive platform is mounted to the housing. The drive platform comprises: a rotatable part to which the image capture device is mounted; a stationary part having a chamber to receive the rotatable part and a capture window to expose the image capture device; and at least one piezoelectric motor which rotates the rotatable part to pan and tilt the image capture device within the capture window.

Abstract: A household appliance has a container for receiving working material and a housing that is isolated from the container by a wall. A rotatable working tool disposed inside the container. A motor for driving the working tool has a stator and a rotor. The stator is disposed within the housing so as to be isolated from the working material of the container. The rotor is disposed within the container and the working tool is preferably fixed to a shaft of the rotor.

Abstract: A fluid delivery system includes a mixing chamber for mixing liquid and substances therein. The mixing chamber has an outlet and several inlets for entering of the liquid and substances. A pump is connected to one of the inlets and outlet for urging the liquid to enter into the mixing chamber via one of the inlets and to exit the mixing chamber via the outlet. A heating/cooling device is connected to or formed as a part of the mixing chamber and arranged to heat/cool the liquid and substances contained in the mixing chamber.

Abstract: A display device comprises a housing, an image capture device and a screen mounted to the housing. A drive platform is mounted to the housing. The drive platform comprises: a rotatable part to which the image capture device is mounted; a stationary part having a chamber to receive the rotatable part and a capture window to expose the image capture device; and at least one piezoelectric motor which rotates the rotatable part to pan and tilt the image capture device within the capture window.

Abstract: A blower for a vacuum cleaner has a diffuser with an increased efficiency by coupling the attack angle A of the diffuser vanes with the attack angle B of the return guide vanes where angle A is between 4° and 6° and angle B is between 6° and 20°.