572results about How to "Improve air flow" patented technology

According to one embodiment of the present technique, forced air (i.e., air flow) is routed through a motor stator having corners and center ducts. Advantageously, by routing the air flow through ducts in accordance with the present technique, air flow is more evenly distributed throughout the motor, thereby reducing hotspots. By way of example, the motor stator my include fins that affect air flow and provide heat dissipation surfaces to the motor.

An axial-flow fan according to the present disclosure can increase the amount of the airflow and simultaneously reduce the noise level. A plurality of stationary blades 11A to 11D are curved, in a convex manner, toward a rotating direction of an impeller. The plurality of stationary blades 11A to 11D are generally inclined so that discharge-side edge portions 11d thereof are located more forward than suction-side edge portions 11c thereof in the rotating direction. An inclination angle θ4 of each of the plurality of stationary blades 11A to 11D in the vicinity of the external end portion 11a is larger than the inclination angle θ3 in the vicinity of the internal end portion 11b. The inclination angle is gradually changed from the vicinity of the external end portion 11a toward the vicinity of the internal end portion 11b.

The invention discloses an efficient heat radiation embedded type microwave oven. The efficient heat radiation embedded type microwave oven comprises a surface frame, a shell, and a cooking cavity and an electric appliance chamber which are arranged in the shell and are arrayed side by side, wherein air inlets are formed in the two sides of the surface frame; air outlets are formed in the upper and lower ends of the surface frame; a gap between the surface of the shell and the inner wall of a preformed hole in a cupboard forms an air inlet channel; air guide covers are arranged on the top face and the bottom face of the shell; a separation plate is arranged in the middle of the electric appliance chamber. The efficient heat radiation embedded type microwave oven adopts an independent cooling air flue design, and a speed changing fan and a temperature probe are matched so that the cooling air amount and the air pressure can be flexibly adjusted, and the cooling effect is improved; the separation plate in the electric appliance chamber is used for dividing airflow into upper and lower paths for respectively cooling different electrical apparatus elements, so that the cooling effect is preferable.

Multi-Element Structured Arrays (MESAs) present an effective approach to utilizing high pressure drop media that previously were cost prohibitive for use in a traditional filter element. The operational velocity is significantly slowed by the incorporation of numerous elements; thus, eliminating the Darcian flow resistances of the media. The MESAs are readily fitted with two or more replaceable “filter elements” that are able to employ commercially available media, microfibrous entrapped catalyst / sorbent media, unique multilayers and more. A model capable of estimating pressure drop for flow through a pleated filter is able to be used as a design tool to predict minimum initial pressure drop, maximum filtration area, and preferred media properties with respect to permeability versus thickness thus allowing the filtration system's dirt holding capacity, filtration efficiency and operational energy cost and filtration operational and total ownership costs such as blower energy, filter procurement and shipping, maintenance personnel, filter disposal, inventory and storage, cost of money and more to be improved.

A nose dilation device includes a resilient one-piece plastic body including a generally U-shaped center portion and a pair of substantially horizontally oriented dilation rings extending outwardly from an upper end of the center portion and adapted to internally engage nasal passages of a user.

An air duct outlet that allows a user to redirect an air stream within a wide range of directions includes a housing having a planar first wall and a convexly-curved second wall in adjacent, spaced-apart relationship and that define an air passageway having an inlet and a flared outlet. A vane is pivotally attached within the air passageway and is movable within a range of positions that are increasingly transverse to the first wall. An air stream flowing through the air passageway is deflected by an amount that increases with each position of the vane in the range such that the air stream adheres to a portion of the second wall by an amount that increases with each position of the vane in the range and such that the air stream exits from the outlet in a direction that is increasingly transverse to a direction normal to the outlet.

Embodiments of the invention include a dust extraction system including an array of two or more centrifugal dust removal devices, e.g., axial cyclones. The array of axial cyclones is configured to operate in parallel. The array of axial cyclones includes one or more sensor and a controller in communication with the sensor and adapted to receive air flow information from the one or more sensor. Inflow valves are operatively connected to the controller such that air flow through the array of axial cyclones is monitored and maintained at an optimum operating condition for each of the individual cyclones in the array. This is done, in general, by opening inflow valves as the air flow increases above a predetermined air flow value and shutting inflow valves as air flow decreases below the predetermined air flow value threshold.

The invention discloses a nitrogen displacement system for an LNG (Liquefied Natural Gas) storage tank. The nitrogen displacement system comprises a nitrogen inlet pipeline, a tank top emptying system for inner tank nitrogen drying replacement, a tank bottom insulation layer upper nitrogen drying replacement pipeline and a tank bottom insulation layer lower nitrogen drying replacement pipeline, wherein the nitrogen inlet pipeline extends to the bottom of the inner tank along a wall plate of the inner tank of the LNG storage tank; the tank top emptying system for inner tank nitrogen drying replacement is arranged on the top of the LNG storage tank; the tank bottom insulation layer upper nitrogen drying replacement pipeline extends into a tank bottom foam glass brick insulation layer upper concrete leveling layer along the interior of a tank wall insulation layer of the LNG storage tank; the tank bottom insulation layer lower nitrogen drying replacement pipeline extends into the tank bottom insulation layer along the tank wall insulation layer of the LNG storage tank; and the tank bottom insulation layer lower nitrogen drying replacement pipeline is arranged in a lower concrete leveling layer channel of the tank bottom insulation layer. According to the nitrogen displacement system for the LNG storage tank, after the inner tank nitrogen replacement is finished, nitrogen replacement in the annular space and the upper and lower parts of the tank bottom can be simultaneously started, the N2 gas flow is increased, and the drying inerting rate is accelerated.

In a vehicle air conditioner, two foot openings are provided in right and left wall portions of a case, and are opened and closed by two foot doors, respectively. Each door surface of the foot doors is moved along a surface of the right and left wall portions for opening and closing the foot openings. A face opening is provided in a top wall part of the case to be opened an closed by a face door. An operation locus of the foot doors is overlapped with that of the face door when being viewed from a direction perpendicular to the door surface of the foot door, while the face door is operated between the foot doors to have a clearance between the face door and each foot door.

The invention relates to an electronic device. The electronic device comprises a mainboard, a first heat source, a second heat source and a heat radiation module. The first heat source and the second heat source are arranged on the mainboard. The heat radiation module comprises at least one fan, a first heat radiation module and a second heat radiation module. The fan is arranged at a first side of the mainboard, air flow blown from the fan flows along a flow path. The first heat radiation module comprises a first board body in thermal contact with the first heat source and a plurality of first heat radiation fins. The second heat radiation module comprises a second board body in thermal contact with the second heat source and a plurality of second heat radiation fins. The first heat radiation module and the second heat radiation module are located inside the flow path, air flow generated by the fan flows along the flow path firstly through the first heat radiation module and then through the second heat radiation module, and an interval between the first heat radiation fins is larger than that between the second heat radiation fins.

The invention relates to an elevator cage, in particular discloses an elevator cage wind guiding device which can enhance the air convection in the cage. The wind guiding device corresponds to ventilating holes which are arranged on wall plates, cage surrounding, cage bottom frames and / or washboards of the elevator cage, a wind guiding channel of the wind guiding device is formed on the ventilating holes, and natural wind in a wellhole can be guided to enter the elevator cage through the wind guiding channel by using the upward operating work condition and the downward operating work condition of the elevator. The invention uses the upward operating work condition and the downward operating work condition of the elevator to form positive pressure on a cage ventilating hole position by the wind guiding device, and is beneficial to the natural wind outside the cage to enter the cage according to a special track, thereby the air flowing speed and the air flow capacity are increased to reinforce the air circulation effect in the cage.

An axial flow fan according to the present invention comprises an impeller which rotates about a central axis and including a plurality of blades, a hollow member accommodating therein the impeller, a base portion which is arranged at the hollow member and supports the base portion in a rotatable manner, a plurality of inner air guide members each connected to the base portion, and a plurality of outer air guide members each connected to the hollow member.The inner air guide members and the outer air guide members each include a first edge member and a second edge portion. A length of he first edge member and that of the second edge member of the outer air guide member are greater than those of the first edge member and the second edge member of the inner air guide member.

The invention provides a fluidized bed-entrained flow bed gas gasification method. The method comprises the following steps: 1) carrying out reaction on raw material coal and a mixture of air and steam or a mixture of oxygen and steam to obtain gas containing incompletely reacted coal and ash; 2) separating the gas obtained from the step 1) to obtain condensed fine coal air-flow and light fine coal air-flow, and carrying out reaction on the condensed fine coal air-flow with air or oxygen to obtain gas containing coal and ash; 3) carrying out reaction on the gas obtained from the step 2) and steam to obtain gas containing coal and ash; 4) carrying out reaction on the gas obtained from the step 3), the light fine coal air-flow separated from the step 2) and a mixture of steam and carbon dioxide to obtain final gas containing coal and ash. The method lowers investment and operating cost of a traditional pulverizing system by an entrained flow bed gasification method and has a substantially increased gasification temperature than a traditional fluidized bed gasification method, so as to reduce equipment cost and increase gasification efficiency.

Disclosed herein is a switched reluctance motor assembly, including: a rotating shaft forming a rotating center of a motor; a rotor part rotatably coupled on the rotating shaft; a front part mounted over the rotor part to support a first bearing part of the rotating shaft; a diffuser part having a plurality of integrated guide vanes mounted at an outer side thereof while being coupled with the axial upper portion of the front part; and an impeller part coupled with the axial upper portion of the diffuser and coupled with the rotating shaft. According to the preferred embodiments of the present invention, it is possible to reduce the noise generated at the time of driving the motor by manufacturing the guide vanes mounted in the diffuser of the switched reluctance motor so as to be vertically integrated.

The invention discloses a two-stage turbocharger for an aviation piston engine. The two-stage turbocharger comprises a rotor assembly, a front support assembly, a rear support assembly, a turbine volute, a high-pressure compressor casing, a low-pressure compressor casing and the like, wherein each part in the rotor assembly is locked through a compression nut, and respectively connected with the turbine volute and the compressor casings through bolts; the rear support assembly is of a thin-walled stainless steel soldering structure, and bearings are distributed in a back to back mode; and the compressor casings are of a combined mode, the low-pressure compressor casing is connected with the high-pressure compressor casing through a bolt, and is connected with a regulator assembly through a bolt. The two-stage turbocharger has the advantages that: the turbocharger has simple structure and light weight, and a structure that one turbine drives two compressors is adopted, so that the requirement of an aircraft for high-altitude flight is fulfilled, and the weight of the engine is effectively reduced. The two-stage turbocharger has the characteristics of high reliability and good sealing property, and fulfills the requirement of high-altitude sealing.

The invention discloses a centrifugal fan and a clothes dryer with the same. The centrifugal fan comprises a plurality of main blades arranged on the periphery of the centrifugal fan, and is characterized in that a plurality of radially distributed auxiliary blades are arranged on a mask, facing an air inlet direction, of the centrifugal fan. The centrifugal fan further comprises a wheel rim and a wheel disk, wherein the central area of the wheel disk forms a motor cover; the plurality of main blades are circumferentially arranged between the wheel rim and the wheel disk at intervals, and every two adjacent main blades define a first airflow passageway; the plurality of auxiliary blades surround a connection shaft sleeve and are arranged on the motor cover, and every two adjacent auxiliary blades define a second airflow passageway; and the first airflow passageways, the second airflow passageways and air inlets are communicated mutually. The centrifugal fan can effectively reduce inhibition of the motor cover, enable airflow at the air inlets of the centrifugal fan to flow better, and realize two-stage boosting and speed-increasing of the auxiliary blades and the main blades, so that the pressure of airflow at outlets of the centrifugal fan is obviously increased, and the efficiency of the fan is improved.

The invention relates to a solar energy and wind energy integrated generating set, which comprises a generator, wherein, the generator comprises a stator and a rotor. The invention is characterized in that: the solar energy and wind energy integrated generating set also comprises a support saddle, wherein, a vertical directed air flow channel is arranged inside the support saddle; a solar panel is arranged on the support saddle; an electric fan is arranged inside the air flow channel; the solar panel is electrically connected with the electric fan; at least one fan vane is arranged inside the air flow channel; and the fan vane is connected with the rotor of the generator by means of transmission. Upward flows are formed in the air flow channel of the invention and the solar panel generates power under sunlight radiation and drives the electric fan to rotate, thereby the air flow quantity entering into the air flow channel is increased and the speed of the upward flows in the air flow channel is strengthened; the upward flows drive the fan vane to rotate, drive the rotor of the generator to rotate for power generation and are fully utilized by the generator, thereby the generating capacity is large. Moreover, the solar energy and wind energy integrated generating set is simple in structure, easy in assembly and strong in natural environment suitability and can supply power for outdoor illumination lamps.

The invention discloses an unpowered driven air filtering screen cleaning device. The unpowered driven air filtering screen cleaning device comprises a metal baffle screen and an air cylinder, wherein the air cylinder is positioned on the outer side of the metal baffle screen; fan impellers are fixed on the inner side of the metal baffle screen via a support, are coaxially connected with the air cylinder, and are provided with impeller bodies; wing-shaped blades are distributed on the circumferences of the impeller bodies. According to the device, power driving is not required in the whole operation process, and the air cylinder is driven to rotate by completely utilizing an air-conditioning negative-pressure principle and impeller formation rotation air streams, so that dust is collected, and returned air is utilized; short fibers or cotton fibers which are attached to the surface of the metal baffle screen are removed effectively; the air flow rate can be improved; automatic cleaning is completed in the unpowered driven state; manual operation is not required; the unpowered driven air filtering screen cleaning device has the advantages of simple structure, convenience in use and energy source conservation.

The invention discloses a circulating water cooling tower, comprising a tower body, a chimney and a cooling water tank; wherein the interior of the tower body is filled with filler, so as to form a filler layer, the upper part of the filler layer is also provided with a cooling water distributor, the chimney is arranged at the upper part of the tower body, an air fan is arranged at the inlet thereof, and the outlet thereof is an air outlet, besides, the lower end of the tower body is an air inlet, the cooling water tank is arranged at the lower part of the tower body, and an air deflector is arranged between the filler layer and the air fan. The invention guides air by mounting an air deflector, air flow line is specified, turbulence degree thereof is reduced, air flow of circulating water cooling tower is increased, power consumption of air fan is reduced, contact of gas and liquid phases in the circulating water cooling tower is optimized, and heat transfer and mass transfer thrusts of air and cooling water in the circulating water cooling tower are improved, thus improving working efficiency of circulating water cooling tower.

The invention relates to an air filter for a reducer, which comprises an upper cover body and a lower cover body, wherein the inner wall surface of the end portion of the upper cover body abuts against the outer wall surface of the lower cover body to form an enclosed cavity, a device inside the cavity is glued with the upper cover body to form a filter paper fixing frame, and filter paper is arranged on the filter paper fixing frame. Ventilating holes and ventilating grooves are distributed on the lower cover body in annular mode. The lower cover body is in thread connection with a ventilating seat, the thickness of the middle wall of the ventilating seat is thickened outwards to form an annular stair, and a first sealing ring and a second sealing ring are respectively arranged on the upper portion and the lower portion of the annular stair. The air filter for the reducer has the advantages of being easy and convenient to install, large in ventilating quantity and not apt to block.

The invention relates to a detachable turbine air purifier. According to the purpose, the detachable turbine air purifier should have the beneficial effects of being high in purifying efficiency and low in energy consumption. According to the technical scheme, the detachable turbine air purifier comprises an air inlet chamber and a purifying chamber. The air inlet chamber comprises a lower shell, a connecting cover arranged on the top of the lower shell and connected with the purifying chamber, and an air inlet mechanism arranged in an inner cavity of the lower shell and used for feeding air into the purifying chamber. The top of the lower shell is provided with an opening, and multiple first-level air inlet holes are formed in the side wall of the lower shell. The cross section of the connecting cover is gradually reduced from bottom to top. An air inlet in the bottom of the connecting cover is in butt joint with the opening in the top of the lower shell, and an air outlet in the top of the connecting cover is in butt joint with a bottom plate of an upper shell. The purifying chamber comprises the upper shell and a purifying assembly arranged in an inner cavity of the upper shell and used for cleaning air; a top plate of the upper shell is provided with air outlet holes; and jet flow holes communicating with an inner cavity of the connecting cover and multiple second-level air inlet holes formed in the peripheries of the jet flow holes are formed in the bottom plate of the upper shell.

An air conditioner for a vehicle includes a blower; a heat exchanger that heats the blown air by heat exchanger between blown air and a heat medium, a control device, and an air outlet mode switching device that switches between air outlet modes by switching proportions of air flow blown out from outlets which includes a face air outlet and a foot air outlet, wherein the control device limits the availability factor of the blower based on a temperature of the heat medium; and relaxes limitation on the availability factor of the blower when the air outlet mode is a bi-level mode in which the blown air is blown out from both of the face air outlet and the foot air outlet.

The invention relates to a grinding table, in particular to a wet grinding device. The wet grinding device comprises a suction device 1, a filter element 2, a workbench 12, a casing 14 and a water curtain dedusting device, the casing 14 is arranged in front of the workbench 12, and the air suction device 1 air outlet is communicated with the filter element 2, so The water curtain dedusting device includes a water supply device 5, a water curtain plate 4, an overflow tank 7 and a water storage tank 9, the water curtain plate 4 is arranged in front of the workbench 12, and the overflow tank 7 is located above the water curtain plate and is communicated with the water supply device 5, When the water supply overflows, form the water curtain located in front of the workbench, the water tank 9 is used to accommodate the falling water curtain, and the air inlet of the suction device 1 is communicated with the space area in front of the water curtain plate 4 . In the present invention, a water curtain dedusting device including a water supply device 5, a water curtain plate 4, an overflow tank 7 and a water storage tank 9 is arranged in front of the workbench, and the dust-attached gas is removed through the water curtain to improve the dust removal efficiency.

The invention discloses a computer for software development that dissipates heat quickly, and belongs to a software development field. The computer for software development that dissipates heat quickly, includes the casing, two partitions are arranged inside the casing, The top and the bottom of the two partitions are fixedly connected with the inner top wall and the inner wall of the casing respectively, the two partitions are provided with penetration openings, the opposite sides of the two partitions are fixedly connected with support plates, the support plates are positioned below the penetration openings, and the bottom of the support plates is provided with telescopic pushing devices. Through the telescopic device, the combination of the pushing lever and the movable lever, The T-plug is effectively separated from the heat dissipation hole, the air flow inside the casing is increased, the heat dissipation efficiency is improved, and the heat dissipation fan is driven to rotate byelectrifying the motor through the cooperation of the driving gear, the bearing, the rotating rod and the conveyor belt, thereby further accelerating the heat dissipation of the computer and effectively prolonging the service life of the computer.

The present invention discloses one kind of parallel cooling refrigerator and belongs to the field of cooling-air circulating technology for refrigerator. The refrigerator includes freezing chamber, cold storage chamber installed parallelly to the freezing chamber, partition board to separate the freezing chamber and the cold storage chamber, evaporator to form cooling circulation, separating board to separate the heat exchange space of the evaporator into two parts, freezing chamber cold air passage to feed partial cold air into the freezing chamber, cold storage chamber cold air passage to feed other cold air into the cold storage chamber, and blower for the forced circulation of cold air. The present invention has raised cooling effect, saving in power, raised cold storage chamber cooling speed and maximized cold storage chamber volume.

The invention belongs to the technical field of ramjet engine tests, and in particular relates to a vacuumizing system and a vacuumizing method for a vacuum cabin of a ramjet engine. The system comprises a vapor source, a vapor distributer, a first-stage ejection device, a second-stage ejection device, a muffling tower and a switch valve, wherein the first-stage ejection device and the second-stage ejection device are connected in series; a vapor inlet of the first-stage ejection device communicates with the vapor distributor through the switch valve; a vapor inlet of the second-stage ejection device communicates with the vapor distributor; a vapor outlet of the second-stage ejection device communicates with the external environment through the muffling tower; a vacuumizing inlet of the first-stage ejection device communicates with the vacuum cabin to be vacuumized; and the vapor distributor is connected with the vapor source. The system and the method, provided by the invention, have the advantages of large working range and high vacuumizing ability.

The invention provides a pass-type microwave drying system for a sand mould. The pass-type microwave drying system for the sand mould comprises a roller way device, a microwave drying room and a humidity elimination blowing-in device. With humidity control as priority and temperature control as aiding, measuring temperature deviation of the sand mould is reduced, and a mode of top air drafting and bottom blowing-in is adopted so that the fact that air and water vapor in the microwave room circulate smoothly is ensured, quick, efficient and high-class drying of the sand mould is achieved; and multiple patterns such as local operation and remote operation are possessed, integration with other equipment or system is convenient and line production is achieved.

The invention discloses a turbo-charged diesel engine auxiliary braking system. The turbo-charged diesel engine auxiliary braking system comprises an exhaust braking butterfly valve (4) and a braking device (5); the exhaust braking butterfly valve (4) is arranged on an exhaust pipe of an engine; the braking device (5) is arranged between the top of an engine cylinder head and an engine cover; the exhaust braking butterfly valve (4) and the braking device (5) are electrically connected with an engine ECU (electronic control unit) (3) respectively; an air bypass passage (13) is arranged between the outlet of an air compressor (12) and the inlet of an intercooler (10); the air bypass passage (13) is communicated with the outlet of the air compressor (12) and the inlet of the intercooler (10) respectively; a bypass-valve (14) is arranged on the air bypass passage (13) and is an electrically controlled valve; the electrically controlled valve is electrically connected with the engine ECU (3). The engine braking power is improved and the engine auxiliary braking effect is improved.

An architecture is presented that provides a an air conditioner booster device for improving the air flow across the condensing exchanger of an air conditioning unit thereby increasing the efficiency of the air conditioning unit. The air conditioner booster device is intended to increase the air flow created by a traditional air conditioner condenser fan. The air conditioner booster device is easily removably attachable to most conventional air conditioning units.