摘要:
A magnetic axleless liquid circulator comprises a circulating base being a hollow base fixed onto a sidewall of a tank and having a hollow accommodating chamber protruded from the bottom of the circulating base; a vane set comprising a vane base disposed in the accommodating chamber and having a circulating vane; wherein the vane base comprises a rotary magnetic core; a circulating lid, being wrapped and fixed around an open end of the circulating base and having a water outlet hole disposed at the center of the circulating lid; a motor being coupled to the bottom of the circulating base and having a hollow rotary magnetic base disposed at an axle end, and the rotary magnetic base being capable of magnetically attracting and driving the rotary magnetic core of the vane set to rotate and producing a water circulation by the circulating vane.
摘要:
A convex ink meniscus is obtained at the outlet of the nozzle by hydrostatic pressure created by a pump situated between the ink reservoir and the nozzle. The ink jet is obtained by an electric field. The pump is of the continuous type, means being provided to reduce the operational pressure at the level of the nozzle from the value necessary to create a convex meniscus to a value for which the ink remains substantially contained inside the nozzle. A control device acts on these means to render them inoperative and ensures the re-establishment of the meniscusforming pressure at the beginning of each period of writing. The pump may have a member having a surface of revolution in which a spiral passage is hollowed, a second member with a second surface of revolution is applied against the first and movable by electromagnetic means.
摘要:
A propulsion mechanism, such as a pump, for propelling liquids first radially and then axially through the mechanism at high pressure, the mechanism having within a cylindrical housing a rotor balanced to minimize radial and axial forces on the rotor whereby bearings are not required for the rotor.
摘要:
Low flow centrifugal pump that develops more than 25 percent greater pressure than equivalent standard type spiral impellers with circular casings.
摘要:
A method and apparatus for the pressurizing of fluids within a rotating rotor wherein a fluid enters the rotor near center, is first pressurized by centrifugal force with initial acceleration and is then further accelerated and pressurized within a circular cavity in a free vortex. The fluid then leaves the circular cavity via openings at periphery and is passed inwardly toward rotor center via passages, and discharged via opening near rotor center. Fluids may be gases or liquids. The device can be used either as a pump, a compressor, or a turbine as desired.
摘要:
A centrifugal-turbine pump capable of pumping liquids at or near the boiling point with suction heads not greater than 1 foot having a pump casing with first and second pumping chambers laterally disposed and a drive shaft disposed axially of the pumping chambers. A high-pressure regenerative turbine impeller fixed for rotation with the driving shaft. The second pumping chamber extending angularly about the periphery of the turbine impeller and having a discharge opening radially from the turbine impeller. The casing having a suction entrance for the turbine stage opening laterally from the first pumping channel to the second pumping channel. A centrifugal impeller fixed for rotation within the first channel and with the drive shaft and turbine impeller.
摘要:
A device with a torque-proof first structural component and a second structural component that is connected at least in certain areas in a rotatable manner to the first structural component, wherein hydraulic fluid can be guided to lubrication points via the first structural component and the second structural component. The second structural component is embodied with blade areas which are extending substantially at a defined angle in the radial direction inside the second structural component and between which transmission areas for hydraulic fluid of the second structural component are provided, with their flow cross sections decreasing in the transmission areas in the flow direction of the hydraulic fluid.
摘要:
A fluid transfer coupling includes a first and second shaft assembly. The first shaft assembly includes a shaft and annular fin attached to shaft, annular fin having one or more internal passages extending therethrough. The or each internal passage connects a centre portion of shaft to a radially outwardly facing side of annular fin. The second shaft assembly includes a shaft and annular trough extending radially outwardly of shaft. The first shaft is concentrically accommodated within second shaft with annular fin being accommodated within annular trough. In use, first shaft assembly rotates at a first rotational speed and second shaft assembly rotates at a second rotational speed, with second rotational speed being greater than first rotational speed. The difference between second and first rotational speeds cause a fluid contained within annular trough to be driven radially inwardly through the or each internal passage to centre portion of first shaft.