9results about "Circumferential flow pumps" patented technology

A disk-pack turbine includes two disks each having a waveform surface and a second surface, the waveform surfaces face each other and have an axially centered waveform pattern, at least one disk includes an axially centered opening passing from the second surface to the waveform surface, the disks define an expansion chamber including the at least one opening and a disk chamber between the disks from the expansion chamber to a periphery of the disks. The waveform pattern includes at least one waveform that has an amplitude that varies in a radial direction and the waveform pattern maintains or increases the number of peaks for each level of waveforms progressing out from the inner most waveform about the axial center to the periphery where the increase is by a multiplier of 2 to 8. The second surfaces have a slight parabolic shape or are flat.

The present disclosure provides a fish guide device for a pump. An axial flow pump blade is located in a runner chamber. A fish guide ring mounted on a wall surface of the runner chamber is arranged at an inlet of the axial flow pump blade. A fish guide cap is mounted on a hub of the axial flow pump blade. A plurality of jet holes are provided on the fish guide ring, to form a jet to guide fish to the fish guide cap. A plurality of fish guide grooves are provided on a surface of the fish guide cap. The present disclosure allows the fish to enter a flow channel of an axial flow pump. This can improve the survival rate of fish and allow the fish to smoothly pass through the axial flow pump.

A system and method in at least one embodiment for separating fluids including liquids and gases into subcomponents by passing the fluid through a vortex chamber into an expansion chamber and then through at least a portion of a waveform pattern present between at least two rotors and / or disks. In further embodiments, a system and method is offered for harnessing fields created by a system having rotating rotors and / or disks having waveform patterns on at least one side to produce current within a plurality of coils. In at least one embodiment, the waveform patterns include a plurality of hyperbolic waveforms axially aligned around a horizontal center of the system.

The objective is to improve motor cooling performance in a vortex pump without significantly changing the size of the motor's air vents. [Solution] The motor comprises a double-shaft motor 2 with a rotating shaft 10 extending laterally, an impeller 5 provided on one side of the rotating shaft of the motor 2, a pump casing 3 that rotatably houses the impeller 5 and has a discharge port formed therein for discharging liquid sucked in by the rotation of the impeller 5, a cooling fan 6 provided on the other side of the rotating shaft 10 of the motor 2, and a fan cover 7 that rotatably houses the cooling fan 6 and has an intake port 7a formed therein for drawing in air by the rotation of the cooling fan 6. Multiple cylindrical holes are provided on the outer surface of the motor 2 that connect the inside and outside of the outer surface of the motor 2, and the entire circumference of the outer edge of the motor casing at the holes is rounded, thereby increasing the amount of air flowing into the motor and enhancing the cooling effect.

A turbofan (30) includes an end plate (31), a shroud (32), and blade members (33). Of a space between the end plate (31) and the shroud (32) of the turbofan (30), an annular portion where the blade members (33) are provided is a pressure-increase flow path (43). Air flows from an inner peripheral side to an outer peripheral side of the pressure-increase flow path (43). The cross-sectional area of the pressure-increase flow path (43) increases gradually from an upstream end (43a) toward a downstream end (43b) of the pressure-increase flow path (43).

The invention relates to a peripheral impeller pump (2) with a drive motor (5), an impeller (16) coupled to the drive motor (5), and a partition (30) arranged between the drive motor (5) and the impeller (16), characterized in that an elastic spring element (36) is provided which allows the impeller (16) to move away from the drive motor (5). The invention also relates to a water supply system for a caravan, comprising a water circuit and such a peripheral impeller pump (2).

The application provides a vortex pump and belongs to the technical field of water pumps. The vortex pump solves the problem of poor heat dissipation effect of the existing water pump. The vortex pump comprises a water pump body provided with an electric control box and a fan body, an output shaft is arranged on the water pump body, a plurality of heat dissipation fins are arranged on the water pump body, a protective cover connected with the water pump body and used for protecting the fan body is arranged on the water pump body, a plurality of air inlet holes are arranged on the front end face of the protective cover, a plurality of air outlet holes are arranged on the rear end face of the protective cover, a sliding cover in sliding cooperation with the protective cover is arranged on the protective cover, a convex ring part one is arranged on the inner circumferential wall of the rear end part of the sliding cover, a plurality of plug columns are arranged on the inner wall of the convex ring part one at the corresponding air outlet holes, a moving unit is arranged on the water pump body, a communication hole is arranged on the end face of the convex ring part one at the corresponding heat dissipation flow channel, and a heat dissipation unit is arranged on the water pump body at the heat dissipation flow channel. The vortex pump has the advantage of good heat dissipation effect.

A liquid delivery device comprises a liquid delivery unit and a liquid delivery rotary unit. The liquid delivery unit comprises a liquid delivery chamber where liquid flows in and flows out, and first and second straight flow channels. The liquid delivery rotary unit comprises a spindle that protrudes at the center of the liquid delivery chamber, and an impeller, supported by an annular part, to be rotatable about the spindle and contains a magnetic material; a drive motor is disposed outside the liquid delivery chamber and causes the impeller to be rotated by magnetic fields. A gap is provided between the outer circumference of the spindle and the inner circle of the annular part. The impeller rotates in a state where the gap is biased relative to a range of contact between the outer circumference of the spindle and the inner circle of the annular part.