A fuel pump system (100) and associated method for supplying fuel from an associated fluid source (112) to an associated downstream use (102, 104) including for engine (i) start mode, (ii) run mode, and (iii) actuation mode are disclosed. The system has a pump (110) including a primary stage (116) having an inlet (114), and an outlet (120) that is configured to selectively supply pressurized flow for the (ii) run mode, and a regenerative stage (130) commonly driven with the primary stage to selectively provide pressurized fluid for the (i) start mode and the (iii) actuation mode.

This disclosure relates to a compressor having at least two compression stages. In particular, an exemplary compressor includes a first radial compression stage arranged along an axis, a second radial compression stage arranged along the axis, and a connector fluidly connecting an outlet of the first radial compression stage to an inlet of the second radial compression stage. The connector has a plurality of sections arranged about the axis. The compressor may be a refrigerant compressor used in a heating, ventilation, and air conditioning (HVAC) chiller system.

A cavitation boiler segment includes a rotor to be coupled with a rotating inner drum and a stator surrounding the rotor segment. The rotor and the stator each include drums with two banks of annular apertures, which overlap to define two cavitation regions. The rotor includes a web bifurcating the rotor between the apertures into an upstream side and a downstream side, each forming a separate fluid passage between a face of the rotor and a bank of apertures. The stator includes a casing enclosing the stator apertures in a fluid passageway. In operation, fluid flows into a first side of the rotor, across a first cavitation region and into the stator, then back across the second cavitation region and into the second side of the rotor where the fluid may flow into a first side of an adjacent segment.

The invention belongs to the technical field of fans, in particular to a high-efficiency oblique flow fan. The oblique flow fan comprises fan blades, an air guide cover, directional air guide blades and a housing, wherein the fan blades and the directional air guide blades are connected through a central bearing, the bearing fixed at the center of the conical fan blades passes through a reserved hole in the center of the directional air guide blades and is fixed, the air guide cover is directly stuck at the corresponding position on the housing through the action of a clamping point, and the directional air guide blades and the housing are fixed through screws. The oblique flow fan of the invention reduces sudden change and turbulence of air flow to the greatest extent, doubles the air pressure and energy efficiency of the fan, and effectively reduces noise.

A compressor includes a housing, a shaft, and an impeller rotatable relative to the housing by the shaft. The impeller includes a hub, impeller blades, and external blades. The impeller blades extend from a front of the hub. The external blades protrude from a rear surface of the hub or an outer surface of a shroud of the impeller. The external blades are curved along the rear surface or the outer surface. A heat transfer circuit includes a compressor and a working fluid. The compressor includes an impeller having a hub, impeller blades, and external blades.

Centrifugal electric pump, comprising a pump body, with an aspiration inlet and a delivery outlet, a hydraulic volute, within which an impeller is accommodated, and comprising an electric motor for moving the impeller. The hydraulic volute is constituted by two half-shells made of plastic material and mutually joined with joining means and with sealing means.

Centrifugal electric pump, comprising a pump body, with an aspiration inlet and a delivery outlet, a hydraulic volute, within which an impeller is accommodated, and comprising an electric motor for moving the impeller. The hydraulic volute is constituted by two half-shells made of plastic material and mutually joined with joining means and with sealing means.

The air fan with ice compartment is a thermal transfer device. The air fan with ice compartment is an enclosed structure that forces an air flow over a thermally treated mass, such as ice pack, and discharges the processed air flow into the atmosphere. The air fan with ice compartment comprises a base, a fan assembly, a fan control, an over chamber, and a lid. The fan assembly mounts on the base. The over chamber mounts over the fan assembly and the base. The lid and the fan control mount on the over chamber. The fan control controls the operation of the fan assembly. The fan assembly forces the air flow through the space enclosed by the over chamber and the base.

A cover structure of a washer pump includes a base, a cover and a fastener unit assembled relative to each other. The base and the cover are fastened through the fastener unit, which facilitates the assembly and disassembly of the user. The locking member ensures that the fastener unit is in a locked state to provide a safety protection effect, which not only prevents the fastener unit from being opened by mistake, but also prevents the flow path from being too strong and causes the cover to escape the doubt of the base, thereby enhancing the The tightness of the combination of base and the cover is increased, which increases the fluency of water flow in and out, and at the same time enhances spa and massage effects.

In an aspect, a clutched device is provided, and includes an input member, an output member, a one-way clutch that can operatively connect the input member to the output member, and a motor including a stator and a rotor. The rotor is connected for rotation with a portion of the one-way clutch. The stator is operable to apply a first magnetic driving force to cause movement of the portion of the one-way clutch in a first rotational direction to increase a force of engagement between the input and output members. The stator is operable to apply a second magnetic driving force to cause movement of the portion of the one-way clutch to disengage the input and output members from each other.