A liquid-cooling pump and a flow channel structure thereof are disclosed. The flow channel structure includes a liquid pump mounting chamber. A bottom of the liquid pump mounting chamber is centrally formed with a liquid inlet. A peripheral side of the liquid pump mounting chamber is formed with a liquid outlet. An inner wall of the peripheral side of the liquid pump mounting chamber is convexly provided with a protruding boss corresponding to one side of the liquid outlet and surrounding an impeller, and is concavely provided with a guide groove corresponding to another side of the liquid outlet and surrounding the impeller. The protruding boss is gradually thinned along a rotating direction of the impeller. The guide groove is gradually deepened along the rotating direction of the impeller and communicates with the liquid outlet.

A water pump with an impeller driven by an electrical machine comprising a housing cap and a volute with an inlet) and an outlet and a boot hosting a stator and a rotor of the electrical machine, wherein the rotor is mounted on a fixed shaft in the water pump having a bushing rotatable mounted on the shaft.

The present disclosure relates to a pump.

The pump of the present disclosure includes: a housing; an impeller disposed in the housing and rotating to generate a flow of fluid; and a pump motor configured to rotate the impeller, wherein the impeller includes: a first plate having a disk shape; a boss extending vertically from a center of the first plate, and coupled to a rotating shaft of the pump motor; a plurality of blades extending from an outer circumferential surface of the boss in a radial direction of the first plate; and a second plate having a surface parallel to the first plate, spaced apart from the first plate by a predetermined distance, and connected to the plurality of blades.

Water heater with generator comprises a self-heating tankless water system comprising a length of tubing having a plurality of electrical heating cables secured about the piping. As cold water enters the system the flow of the water is diverted through an electrical generator which provides the electricity to heat the water.

An accelerated and/or redirected flow arrangement, optimally serving as a wildlife and/or debris excluder (WDE), is used in combination with a turbine-like device having an inlet end and an outlet end for fluid flowing therethrough, e.g., a hydro-turbine. The arrangement includes at least a forward part designed to be placed in front of a fluid inlet of a turbine-like device and configured to produce at least one of the following effects on the fluid: (a) imparting a redirection of the fluid; and/or (b) accelerating the flow velocity of the fluid, as it flows through the forward part. Turbine-like devices having both a forward part and a rearward part of flow arrangement are disclosed, as well as a method of enhancing turbine performance.

The application relates to a pump apparatus for pumping liquid, and more particularly to a technique for removing foreign matters contained in the liquid when an impeller catches on the foreign matters. The pump apparatus includes: an impeller (1); an electric motor (7) configured to rotate the impeller (1); an inverter (14) configured to drive the electric motor (7); a current measuring device (15) configured to measure a current supplied to the electric motor (7); and an operation controller (17) configured to instruct the inverter (14) to cause the impeller (1) to perform a foreign-matter removing operation including at least two of: an intermittent operation that intermittently rotates the impeller (1) in a forward direction; a reverse-rotating operation that rotates the impeller (1) in a reverse direction; and a forward and reverse inching operation that rotates the impeller (1) in the reverse direction and the forward direction alternately and repeatedly.

An accelerated and/or redirected flow arrangement, optimally serving as a wildlife and/or debris excluder (WDE), is used in combination with a turbine-like device having an inlet end and an outlet end for fluid flowing therethrough, e.g., a hydro-turbine. The arrangement includes at least a forward part designed to be placed in front of a fluid inlet of a turbine-like device and configured to produce at least one of the following effects on the fluid: (a) imparting a re-direction of the fluid; and/or (b) accelerating the flow velocity of the fluid, as it flows through the forward part. Turbine-like devices having both a forward part and a rearward part of flow arrangement are disclosed, as well as a method of enhancing turbine performance.

A liquid-cooling pump and a flow channel structure thereof are disclosed. The flow channel structure includes a liquid pump mounting chamber. A bottom of the liquid pump mounting chamber is centrally formed with a liquid inlet. A peripheral side of the liquid pump mounting chamber is formed with a liquid outlet. An inner wall of the peripheral side of the liquid pump mounting chamber is convexly provided with a protruding boss corresponding to one side of the liquid outlet and surrounding an impeller, and is concavely provided with a guide groove corresponding to another side of the liquid outlet and surrounding the impeller. The protruding boss is gradually thinned along a rotating direction of the impeller. The guide groove is gradually deepened along the rotating direction of the impeller and communicates with the liquid outlet.

An impeller includes a hub, and a plurality of blades supported by the hub, the blades being arranged in at least two blade rows. The impeller has a deployed configuration in which the blades extend away from the hub, and a stored configuration in which at least one of the blades is radially compressed, for example by folding the blade towards the hub. The impeller may also have an operational configuration in which at least some of the blades are deformed from the deployed configuration upon rotation of the impeller when in the deployed configuration. The outer edge of one or more blades may have a winglet, and the base of the blades may have an associated indentation to facilitate folding of the blades.

An example system comprises an electric machine including a stator and a rotor, a cooling system configured to supply a cooling fluid to cool the electric machine, and a stator tube configured to contain the cooling fluid within a stator portion of the electric machine and prevent the cooling fluid from contacting the rotor.