Abstract: A pump includes an electric motor that is mounted in a motor compartment, a rotor that is mounted in a pump chamber and coaxial to a driven shaft of the motor and driven by the motor, a pump inlet nozzle, and a pump discharge nozzle, wherein the pump is enclosed by a housing and wherein the motor compartment is connected to a surrounding atmosphere by a ventilation channel. The ventilation channel is arranged parallel to the shaft of the motor in the housing and is guided from a lower end of the housing in the region of the pump inlet nozzle up to a passage opening that is formed directly underneath a motor bearing bracket.

Abstract: A ventilation device is disclosed including a fan capable of being driven rotationally by an open electric motor which is firmly attached to a support intended for fixing said ventilation device, the fan having a plurality of blades which are distributed regularly around a bowl inside which there are arranged internal ribs capable of ventilating the open electric motor. Notably, the support includes a central part which is connected in a substantially sealed manner to at least one peripheral portion of the open electric motor.

Abstract: An integrated-inverter electric compressor in which an inverter accommodating section (9) is provided on the periphery of a housing, an inverter that supplies driving power to an electric motor is installed in the inverter accommodating section (9), and its opening (10) is tightly sealed with a cover (13) is configured such that a groove (16) in which a liquid sealant (20) is to be filled is provided in a flange (11) around the opening (10); the liquid sealant (20) filled in the groove (16) is cured to tightly seal a joint surface between the flange (11) and the cover (13); and when the width of a joint surface (17) formed at the inner periphery of the groove (16) in the flange (11) is L1 and the width of a joint surface (18) formed at the outer periphery of the groove (16) is L2, L1<L2 holds.

Abstract: Disclosed is a motor driven fluid pump (e.g., water pump) including a pump body having a motor chamber and a pump chamber; a bearing supporting a rotary shaft of a motor which extends from motor chamber to pump chamber in pump body; a mechanical seal disposed between rotary shaft of the motor and pump body and blocking motor chamber from pump chamber; a bearing guide integrally fixed to rotary shaft of the motor between bearing and mechanical seal; a fluidproof plate fixed to pump body to overlap bearing guide, perpendicular to rotary shaft of the motor; and a leachate exhaust aperture and a vapor exhaust aperture which are formed through pump body to communicate with the space between fluidproof plate and mechanical seal.

Abstract: A compressor (22; 260; 300; 400) has a housing assembly (140) with a suction port (24), a discharge port (26), and an economizer port (58). An impeller (154) is mounted to be driven in at least a first condition so as to draw a main flow of fluid through the suction port and discharge the fluid from the discharge port. A diffuser (220; 302; 402) has a plurality of diffuser passages (222; 310, 308; 403). Each diffuser passage has an inlet (224) positioned to receive fluid from the impeller and an outlet (220) downstream of the inlet in the first condition. One or more passages (230, 231, 232, 234, 236, 268; 320, 330, 332; 412) are positioned to draw an economizer flow of fluid from the economizer port and deliver the economizer flow downstream of the impeller inlet (212) but upstream of the diffuser passage outlets (226).

Abstract: An impeller comprises an impeller body, a plurality of stems, a blade mounting member, and a plurality of blades. The stems radially extend with one end of each stem fixed to a portion of a circumferential wall of the impeller body in the vicinity of a suction port, and are arranged at intervals in a circumferential direction of the circumferential wall. The stems assist the impeller to suck air Jn an axial direction through a suction port during rotation of the impeller. The blade mounting member is disposed concentrically with the circumferential wall of the impeller body. The other end of each stem is fixed to the blade mounting member. The blades are arranged at intervals in the circumferential direction and extend along an axial line toward a second wall portion, with one end of each blade fixed to the blade mounting member.

Abstract: A fan holder includes at least one frame, a first lateral plate, and a second lateral plate. The frame has a first side surface and a second side surface opposite to each other, and the first side surface and the second side surface respectively have a positioning member and a slot. Each frame can be selectively combined with each other through the first side surface and the second side surface. The first lateral plate has a positioning trough, and the second lateral plate has a stopper. The first lateral plate and the second lateral plate are detachably disposed on the first side surface and the second side surface respectively. The positioning member is interlocked with the positioning trough, and the stopper is inserted in the slot. The fan is disposed in the fan holder, and the fan holder is fixed to a case of an electronic device, so as to provide an air flow to cool the electronic device.

Abstract: A headgear-mountable respirator (100) including a first intake (106A) and first associated impeller (108A), as well as a second intake (106B) and second associated impeller (108B) located remotely from the first intake and the first impeller. The respirator further includes a device (112) for, in use, rotating at least one of the impellers, and an air delivery arrangement (103A, 103B) for, in use, delivering air drawn from the first and second intakes to a facial region of a user.

Abstract: A side channel blower for an internal combustion engine includes a housing comprising an inlet, an outlet, a first housing part, and a second housing part. The inlet and the outlet are fluidically connected via an inlet region, via at least one feed channel which extends at least partially in an annular shape in at least one of the first housing part and the second housing part, and via an outlet region. An impeller is rotatably mounted in the housing and is driven via a drive unit. The impeller comprises conveying blades which interact with a feed channel arranged opposite thereto. At least one interruption region is arranged between the inlet region and the outlet region. The at least one interruption region is configured to interrupt the at least one feed channel in a circumferential direction. The at least one feed channel comprises a circumferential angle of <300°.

Abstract: The present invention relates to an electric water pump having improved performance and durability. The electric water pump may include a stator generating a magnetic field according to a control signal, a rotor rotated by the magnetic field, a pump cover having an inlet and an outlet, a body having a front surface forming a volute chamber, a stator chamber, and a rotor chamber, the stator mounted in the stator chamber and the rotor mounted in the rotor chamber, a shaft having a central axis, fixed to the rotor and mounted in the rotor chamber, and an impeller fixed to the shaft so as to rotate together with the shaft, pressurizing the coolant having flowed in through the inlet, and mounted in the volute chamber, wherein the rotor chamber is fluidly connected to the volute chamber, and the stator chamber is fluidly closed and sealed from the rotor chamber.

Abstract: A system wherein cold water from near the sea floor is pumped through a primarily vertical pipe (12) to a body (14) floating at the sea surface so energy can be obtained from water temperature differences. A pump (50) located at the bottom of the pipe, is part of a pump module (46) that can be inserted and removed horizontally through a slot (44) in a bottom structure (22) lying at the bottom of the pipe. The top of the pipe is sealed to a movable pipe connector, by a U-shaped elastomeric seal (110). The pipe can include a short top pipe section (126) and a long bottom pipe section (127) of smaller diameter (D), whose upper portion can be pulled up through the top pipe section when the top pipe section is damaged.

Abstract: A fan device includes a board defining an opening, a fan assembly, and a fastener. Two installation pieces extend from the board at opposite sides of the opening, one of which defines a first through hole. The fan assembly is pivotably mounted between the installation pieces, and includes a fan and a frame receiving the fan. The frame includes a top wall, a bottom wall, and two sidewalls. One of the sidewalls adjacent to the installation piece defining the first through hole defines a first threaded hole. When the fan assembly is pivoted to allow the first through hole to align with the first threaded hole, the fastener extends through the first through hole and then is engaged in the first threaded hole, to make the fan assembly slant relative to the board.

Abstract: A fan assembly includes a chassis, a fan module located in the chassis, a first gasket, a second gasket, a fastener, and a bracket. The fan module includes a front panel and a rear panel. A first gasket extends through the front panel. The second gasket extends through the rear panel. The fastener is pivotable about the first gasket and the second gasket.

Abstract: An electric air pump has a pumping assembly, an outer bracket and an inlet plate. The pumping assembly has a casing. The outer bracket is connected pivotally to the pumping assembly and has a faceplate mounted pivotally on an open top of the casing of the pumping assembly and selectively hermetically contacting a top annular edge of an open top of the casing. A locking hole is defined through the faceplate. The inlet plate is mounted securely in the casing, located between the casing and the outer bracket and has a resilient locking hook selectively hooking in the locking hole of the outer bracket. The electric air pump is capable of inflating and deflating an inflatable product without cooperating with external devices.

Abstract: Implementations of an enhanced axial air mover system address various issues such as drying performance, transportability, storage, use, and assembly. Some implementations include ergonomic positioning of a carrying handle relative to positioning of a fan-assembly to make the system easier to carry. Enclosures with variable diameter profiles increase air flow performance. A floor edge allows for flush positioning of the air mover's outlet to improve flow of air. Various supports and engagement members allow for horizontal and/or vertical engagement of a plurality of the air movers for storage or increased air moving capacity for a given application. An alignment guide assists with positioning of the air mover with respect to a room wall to enhance air flow within the room. A cord retaining system provides an enhanced approach for securing the air mover's electrical cord. Grill guards have slotted ends to assist with assembly of the air mover.

Abstract: A standalone portable electric blower has a propeller generating airflow and driven by an electric motor powered: by a power source, said blower including an air-guide conduit made up of a series of three generally cylindrical tubular portions, namely a proximal portion or suction nozzle provided with an air inlet, a distal air exit portion or exhaust nozzle and a central portion. The central portion is a separate piece and is arranged to form a functional assembly, unitary or made up of a plurality of elements and made of a heat conducting material, said central portion comprising the following functional sub-assemblies; an electronic switching electric motor; at least one axial, propeller rotated b the electric motor; air rectifiers; and an electronic board for managing the tool and controlling the motor.

Abstract: Implementations of an enhanced axial air mover system address various issues such as drying performance, transportability, storage, use, and assembly. Some implementations include ergonomic positioning of a carrying handle relative to positioning of a fan-assembly to make the system easier to carry. Enclosures with variable diameter profiles increase air flow performance. A floor edge allows for flush positioning of the air mover's outlet to improve flow of air. Various supports and engagement members allow for horizontal and/or vertical engagement of a plurality of the air movers for storage or increased air moving capacity for a given application. An alignment guide assists with positioning of the air mover with respect to a room wall to enhance air flow within the room. A cord retaining system provides an enhanced approach for securing the air mover's electrical cord. Grill guards have slotted ends to assist with assembly of the air mover.

Abstract: A hot swap fan includes a fan and a puller structure. The puller structure covers a side surface of the fan. The puller structure includes a base, a holder, and a fixing structure. A first end of the base is pivoted to the fan. The holder and the fixing structure are on a second end of the base.

Abstract: A circulation pump for a domestic appliance, including a motor body, a motor, a hydraulic body attached to the motor body and including an inlet and an outlet, and a closure mechanism or member attached to the hydraulic body, a hydraulic chamber where the fluid flows, which is delimited between the hydraulic body and the closure mechanism or member. The pump includes an impeller housed in the hydraulic body and rotating, causes a substantially circular flow of the fluid in the hydraulic chamber, and a stationary element suitable or configured for aiding in discharging the fluid from the pump. The stationary element may be attached to at least one of the elements demarcating the hydraulic chamber and may be arranged in the hydraulic chamber such that it blocks or resists against the flow of the fluid.

Abstract: A device for blowing air by a nozzle assembly includes a base seat for generating an air stream to supply air flow and a nozzle assembly supported by the base seat and comprising a slot-shaped opening for blowing air. An airflow passage is connected between the base seat and the nozzle assembly. An intake end of the airflow passage is opened on the outer surface of the base seat, and an output end is connected to the nozzle assembly by a pivot component. An intake end of the nozzle assembly is connected to an output end of the base seat by the pivot component. An impeller and electric motor for driving the impeller to rotate are provided within the base seat. The nozzle assembly is rotatably fixed on the base seat by the pivot component.

Abstract: A pump unit includes an electric motor, located in a stator housing (6), a terminal box being arranged on an axial face of the stator housing (6). The terminal box (12) includes a tubular housing element (44) having a first axial face to which the axial face of the stator housing (6) is connected. An opposite second axial face (46) of the tubular housing element (44) is closed by at least one cover element (40) into which operating and/or display elements (38) are integrated. An electrical connecting element (42) is arranged on the outer periphery of the tubular housing element (44).

Abstract: A household appliance includes a tub, in which a liquid is at least temporarily contained, and a pump assembly for effecting liquid flow within the tub. The pump assembly includes a housing including a flow path portion that is integrally formed and defines an inlet, an outlet, and a flow path extending between and interconnecting the inlet and the outlet. The flow path portion defines a turn, such that at least part of the flow path extends in a direction that is oriented at an angle relative to the inlet axis. The pump assembly includes an impeller rotatable about an impeller axis. The impeller includes a plurality of blades extending at least substantially radially from the impeller axis and configured to propel a fluid at least substantially axially thereby. The impeller is positioned in the flow path adjacent the inlet such that the impeller axis and the inlet axis are at least substantially parallel or at least substantially aligned.

Abstract: A fluid pump assembly is provided. The pump has a pair of units magnetically coupled to each other. The first unit contains a drive motor and a magnetic assembly. The second unit contains a magnetic assembly and a blade of a propeller/impeller for imparting movement to a fluid. As the first unit is activated by the drive motor, a magnetic flux is created which in turn rotates the magnetic assembly in the second unit, driving the blade.

Abstract: Provided is an air blower for a fuel cell vehicle, and in particular, an air blower for a fuel cell vehicle having a cooling water passage formed in a motor case and an air flowing groove to increase cooling efficiency and reduce a shaft load to improve durability.

Abstract: A fan includes a housing having a compartment formed inside, and at least one lateral air inlet and at least one lateral air outlet both penetrating through the inner and outer surfaces of the housing and communicating with the compartment. A motor is mounted inside the compartment of the housing and has a stator and an impeller, with the impeller rotatably coupled to the stator and further containing a hub and a plurality of blades mounted to a top of the hub. Each blade has a first end and a second end in the radial direction of the impeller opposite to each other, with the first end of each blade facing outward, and with the second ends of the plural blades defining an airflow-area.

Abstract: A cooling fan includes a sidewall coupled to a base of a housing and defining a compartment. The housing includes an air inlet, an air outlet, and a dust channel. The air inlet, the air outlet, and the dust channel are in communication with the compartment. An impeller is rotatably coupled to a stator coupled to the base. A control element includes a driving circuit electrically connected to the stator and a rotating direction control circuit electrically connected to the driving circuit. The air outlet and the dust channel separate an inner periphery of the sidewall into first and second guiding wall sections. The first guiding wall section has a guiding portion contiguous to the dust channel. A first spacing between the guiding portion and a center of the impeller is not larger than a second spacing between the second guiding wall section and the center of the impeller.

Abstract: Implementations of an enhanced axial air mover system address various issues such as drying performance, transportability, storage, use, and assembly. Some implementations include ergonomic positioning of a carrying handle relative to positioning of a fan-assembly to make the system easier to carry. Enclosures with variable diameter profiles increase air flow performance. A floor edge allows for flush positioning of the air mover's outlet to improve flow of air. Various supports and engagement members allow for horizontal and/or vertical engagement of a plurality of the air movers for storage or increased air moving capacity for a given application. An alignment guide assists with positioning of the air mover with respect to a room wall to enhance air flow within the room. A cord retaining system provides an enhanced approach for securing the air mover's electrical cord. Grill guards have slotted ends to assist with assembly of the air mover.

Abstract: A heat-dissipating fan includes a housing having a peripheral wall defining a compartment receiving a shaft seat. The peripheral wall includes a wire-guiding slot in communication with the compartment. A base is coupled to the housing and includes a coil unit and a connection port electrically connected to the coil unit. The connection port faces the wire-guiding slot. A power line includes a first end connected to the connection port and a second end extending through the wire-guiding slot. An impeller includes a hub, a shaft mounted to the hub and coupled to the shaft seat, and a permanent magnet mounted to the hub. The permanent magnet faces the coil unit. The connection port is located on a reference line passing through the shaft seat and the wire-guiding slot. A distance between the connection port and the wire-guiding slot is shortened to enhance assembling convenience of the power line.

Abstract: In one embodiment a blower comprises a case comprising a first surface, a second surface opposite the first surface, and a side wall extending between portions of the first surface and the second surface, wherein the side wall comprises an air inlet and an air outlet, an impeller disposed in the case and rotatable about an axis of rotation extending between the first surface and the second surface. Portions of the side wall are disposed at least a first distance from the axis of rotation and the impeller is to define a circumferential airflow path within the case, and the impeller is to create an airflow in the circumferential airflow path between the air inlet and the air outlet.

Abstract: A fan stator cover structure including a main body having a front face and a back face. The main body is formed with at least one through hole and chucking sections respectively disposed on the front and back faces of the main body. The through hole is formed through the main body from the front face to back face. A protrusion body is disposed on the back face and protrudes therefrom to cover the through hole. The protrusion body has at least one open side in communication with the through hole. The main body defines a receiving space and is further formed with a perforation in communication with the receiving space. Wires can be extended through the perforation into the receiving space and chucked in the chucking sections of the front face and then extended through the through hole to the back face and chucked in the chucking sections thereof.

Abstract: Subsea turbomachine for boosting the pressure of petroleum fluid flow from subsea petroleum productions wells or systems, comprising an electric motor and a compressor or pump driven by the electric motor, a fluid inlet and a fluid outlet, distinctive that the turbomachine comprises a pressure housing common for the electric motor or stator, and compressor, pump or rotor; a magnetic gear inside the common pressure housing for operative connection between the motor or stator and compressor, pump or rotor; and a partition inside the common pressure housing, arranged so as to separate a motor or stator compartment from a compressor, pump or rotor compartment.

Abstract: The fan comprises a first electromechanical module including a wheel supported by a shaft coupled to a driving motor, a second mechanical module including a body delimiting a space for receiving the first electromechanical module in which the wheel and the driving motor are received, and a third electronic module including a plurality of electronic components. The third electronic module includes a housing in which the plurality of electronic components is housed, the housing also comprising a deflagration protection exhaust comprising an upper wall and two inclined walls extending on either side of the upper wall so as to form a space extending substantially axially between the upper surface of the housing and the upper wall in order to allow the discharge of overpressures in case of deflagration.

Abstract: Cooling apparatuses, electronic device assemblies, and cooling assemblies having a magnetic shape memory member are disclosed. In one embodiment, a cooling apparatus includes a first compliant member, a magnetic shape memory member, a magnetic field generating device, a second compliant member and a fan member. A first end of the magnetic shape memory member is coupled to the first compliant member. The magnetic field generating device is positioned proximate the magnetic shape memory member, and generates a magnetic field toward the magnetic shape memory member to cause the magnetic shape memory member to expand along a linear translation axis. Expansion of the magnetic shape memory member causes an actuated portion of the second compliant member to translate about an axis. The fan member is coupled to the actuated portion of the compliant member such that translation of the actuated portion translates the fan member.

Abstract: A refrigeration compressor includes a housing having a suction gases inlet and a compressed gases outlet. A linear compressor is supported for operation within the housing. A compressed gases discharge conduit extends from the linear compressor to the housing to connect with the outlet. The conduit is formed of a material of lower heat conductivity than the housing. The conduit passes through the wall of the housing at the compressed gases outlet.

Abstract: An electric pump includes a motor rotor provided in a first end region in the axial direction of a rotary shaft, a pump rotor provided in a second end region in the axial direction of the rotary shaft, and a pump housing supporting the rotary shaft. The pump housing has a first housing portion for accommodating the pump rotor and a second housing portion having a blocking portion. The first housing portion has a suction port for drawing in fluid and a discharge port for discharging the drawn-in fluid.

Abstract: Provided is a fuel pump module used for a car, and more particularly, to a fuel pump module with a driver equipped inside a fuel tank capable of solving a problem of space limitation due to the installation of the driver by disposing the driver for controlling a BLDC fuel pump between a flange and a reservoir and mounting it in the fuel tank, minimizing the degradation in performance of the BLDC fuel pump caused by voltage drop and efficiency degradation due to a wire by reducing a length of a wire for electrically connecting the driver with the BLDC fuel pump, and achieving a sufficient heat radiation effect by directly transferring the heat energy generated from electrical devices such as FET, MCU, or the like, mounted in the driver to the fuel in the fuel tank through the case cover.

Abstract: A fan system includes a motor, a rotatable hub, and a plurality of fan blades. The motor is coupled with the hub by a hollow drive shaft, such that the drive system of the fan system is gearless. The motor is controlled by a PFC-based control module, which is in communication with sensors that are configured to sense parameters associated with operation of the fan system. The control module is configured to react in certain ways to certain conditions detected by the sensors, such that the fan system uses feedback-based control algorithms. A remote control panel is in communication with the control module. The remote control panel is operable to display fault conditions detected by the sensors. Blade retainers prevent fan blades from falling when a fan blade breaks free from the hub. Pins prevent the hub from falling when the hub breaks free from the rotor.

Abstract: A housing can have a cap, a base member and a mid-portion positioned between and removably coupled with the cap and the base member. The cap and the mid-portion can define a reservoir therebetween and the cap can define a recessed inner wall in fluid communication with the reservoir. The mid-portion can define a recessed impeller chamber configured to receive a pump impeller. The mid-portion can further define a retainer positioned between the impeller chamber and the inner chamber. A resiliently compressible member can be positioned within the inner chamber and configured to resiliently compress in response to a volumetric expansion of the liquid coolant. The retainer can contact the resiliently compressible member to prevent the resiliently compressible member from moving out of the reservoir or into a position blocking a liquid coolant flow through a port. The mid-portion can define a housing wall forming the retainer.

Abstract: A series-connected fan unit includes a first fan frame, a second fan frame, a first motor, a second motor and two impellers. The first fan frame has a first base and a first positioning member coupled with the first base. The second fan frame is connected to the first fan frame in series and has a second base and a second positioning member coupled with the second base. The first motor is disposed in the first base and has a first circuit board coupled with the first positioning member. The second motor is disposed in the second base and has a second circuit board coupled with the second positioning member. The two impellers are respectively coupled with the first motor and the second motor, and an insulation area is formed between the first circuit board and the second circuit board.

Abstract: A bore-hole pump formed of stainless steel comprises a head part and a foot part, between which one or more pump stages are incorporated. The foot part serves to connect the pump to a drive motor. The pump includes inlet openings for fluid to be delivered. The foot part consists of at least two components which are separated in one or more essentially radial planes and are formed with different manufacturing methods.

Abstract: An axial flow fan includes a first lead wire engaging portion configured to be engaged with a plurality of lead wires such that the lead wires are pulled out therefrom into an outer space defined between a first flange and a second flange of a fan housing, a second lead wire engaging portion configured to be engaged with the plurality of lead wires such that the lead wires are pulled out toward the other side in the axial direction where the second flange is positioned, and a third lead wire engaging portion configured to be engaged with the plurality of lead wires such that the lead wires are pulled out in the axial direction toward one side where the first flange is positioned. The third lead wire engaging portion is formed in the first flange at a given distance from the first lead wire engaging portion.

Abstract: An engine pump assembly (1), particularly a main coolant pump, composed of a housing (4) of a rotary pump with delivery elements arranged therein, a heat barrier part (6), a motor part (5) which drives the delivery elements, and force transmitting connecting elements (7) between a housing flange (8) of the housing (4) of the rotary pump and a flange (21) of the engine part (5). For faster and more reliable assembly and disassembly, the housing flange (8) is provided with receptacles (12) over at least half of its periphery for the arrangement of screw heads (13, 15) of the connecting elements (7), which screw heads (13, 15) are held in a bayonet-like manner in the receptacles (12).

Abstract: A rotor of a vacuum pump has a circular member that is driven rotatably, a cylindrical member joined to an outer circumference of the circular member, and a thread groove pump flow path formed between the cylindrical member and a stator member surrounding an outer circumference of the cylindrical member. The cylindrical member is made of a material having at least a feature of lower thermal expansivity or lower creep rate than that of a material of the circular member. A gap of a second region provided between a non-joint portion of the cylindrical member and the stator member is set to be smaller than a gap of a first region provided between a joint portion of the cylindrical member and the stator member.

Abstract: Provided is a fluid pump including: a motor unit that comprises a stator, a rotor, and a rotational shaft on which the rotor is fixed, to thus generate a rotating torque; a pump unit that is placed separately from the motor unit on one side of the motor unit, and that comprises an impeller for pumping fluid: a first power transmission unit that is fixed to the rotor and is rotated with the rotor, and that comprises a first magnet; and a second power transmission unit that is fixed to the impeller and that comprises a second magnet that is disposed facing the first magnet and has opposite polarities to those of the first magnet. Accordingly, fluid can he fundamentally prevented from being introduced into the inside of the motor unit.

Abstract: A central tubular structure of a shaft seat and a fan device thereof. The central tubular structure includes a base, a bushing connected with the base and a sealing member. The bushing has an outer tubular wall, an inner tubular wall and a top section interconnected between the outer and inner tubular walls to define a receiving space. The inner tubular wall defines a bearing hole. The bushing further has a reception space in adjacency to the base in communication with the receiving space and the bearing hole. The sealing member is fitted in the reception space to seal the same. The fan device is composed of the central tubular structure, a stator assembly, at least one bearing and a fan propeller. The stator assembly is arranged in the receiving space and has a substrate board. The substrate board is free from any perforation and received in the reception space.

Abstract: In a fuel pump, a case member and a discharge-side cover define a fuel passage. A holder is held between the case member and the discharge-side cover. Brush terminals are supported by the holder to conduct electricity between power receiving terminals and brushes. The power receiving terminals have connector portions that are connected with the brush terminals. A wall of the discharge-side cover and a wall of the holder clamp the connector portions therebetween. The wall of the discharge-side cover and the wall of the holder partition an installation space, which is isolated from the fuel passage and in which the connector portions are enclosed.

Abstract: A centrifugal fan assembly has a fan with a number of vanes at a peripheral edge of a rotor, a motor, arranged coaxially to the inside of the rotor, that rotates the fan, and a casing that houses the fan and the motor. The casing has an air inlet in the direction of a rotating shaft of the fan, and an air outlet in a radial direction. A first part of the casing near the air inlet is arranged relatively towards a center of the casing as compared to the other part of the casing. The motor is mounted on the first part.

Abstract: The present invention relates to an electric water pump having improved performance and durability. The electric water pump may include a stator generating a magnetic field according to a control signal, a rotor rotated by the magnetic field, a pump cover having an inlet and an outlet, a body having a front surface forming a volute chamber, a stator chamber, and a rotor chamber, the stator mounted in the stator chamber and the rotor mounted in the rotor chamber, a shaft having a central axis, fixed to the rotor and mounted in the rotor chamber, and an impeller fixed to the shaft so as to rotate together with the shaft, pressurizing the coolant having flowed in through the inlet, and mounted in the volute chamber, wherein the rotor chamber is fluidly connected to the volute chamber, and the stator chamber is fluidly closed and sealed from the rotor chamber.

Abstract: Disclosed is a ventilating fan including a ventilating fan body provided with a motor, a frame having ventilating air outlets, and fan blades, an adapter and an electric element box. The ventilating air outlets include a top air outlet provided on a top face of the frame of the ventilating fan and a side air outlet provided on a side face of the frame of the ventilating fan which are communicated with each other. The adapter is provided with a raised structure adapted to the ventilating air outlet. With this structure, the height of the ventilating fan is reduced while air volume is ensured, so that the ventilating fan is adapted to be mounted onto various ceilings, and the cost can be saved while mounting of the adapter is simplified.

Abstract: A built-in electric air pump mounted on an inflatable bed by heat binding or adhesion is provided, and includes a pump housing; an air duct conversion mechanism mounted in the pump housing; a cover assembly covering the pump housing; a switch assembly connected with the air duct conversion mechanism; an air valve assembly disposed on the bottom of the pump housing; and a power source device connected with the switch assembly and powering the air pump. The air pump receives power from combinations of power sources in four different modes, namely, dry batteries, a rechargeable battery pack assembly, a vehicle-mounted power source and an AC adapter which match one another, to drive the pump, thereby forming multiple power source configurations to drive the same set of air pump and enable the same inflatable bed to be used indoors as well as outdoors at any time.