48results about How to "Improve blower efficiency" patented technology

A piezoelectric micro-blower includes an inner case to which a peripheral portion of a vibrating plate including a piezoelectric element is fixed such that a blower chamber is defined between the inner case and the vibrating plate and an outer case arranged to cover an outer periphery of the inner case with a gap therebetween. The inner case is elastically retained in the outer case by a plurality of connecting portions. A first opening is provided in a top plate portion of the inner case that faces a central portion of the vibrating plate, and a second opening is provided in a top plate portion of the outer case that faces the first opening. A central space is provided between the top plate portions, and fluid introduced from the outside is guided to the central space through the gap between the inner and outer cases. The vibrating plate is driven in a bending mode so that air is sucked into the central space and is discharged through the second opening. The connecting portions prevent leakage of vibration of the vibrating plate from the inner case to the outer case, thereby reducing energy loss.

An air distribution blower housing for an air handler such as a residential furnace is designed with an enlarged air outlet opening that slows down and spreads out the air flow from the blower housing over a greater area of the furnace heat exchanger. The blower housing thereby enables less air pressure drop through the heat exchanger, which increases the efficiency of the blower motor operation. The design of the blower housing also efficiently turns the velocity head of the air flow through the housing to usable static air pressure at the housing air outlet. The enlarged air outlet opening of the blower housing is achieved without increasing the exterior diameter dimensions of the blower housing whereby the blower housing is used in a compact enclosure for residential use. This is accomplished by utilizing a volute outer wall of the blower housing that has an exponentially increasing expansion angle in the direction of air flow through the blower housing.

An air distribution blower housing has an adjustable restriction in the interior of the blower housing. The adjustable restriction has the configuration of a rectangular plate. One edge of the plate is connected by a pivoting connection to an interior wall of the blower housing in the air flow path from the blower housing. The plate can be pivoted about the pivot connection through a plurality of adjusted angular positions of the plate in the air flow path. In each adjusted position of the plate, the length of the plate extends from the pivot connection in the air flow direction. A sliding connection is provided between the plate and at least one side wall of the blower housing. The sliding connection selectively holds the plate in its adjusted angular position and also provides a visual indication on the exterior of the blower housing of the adjusted angular position of the plate inside the blower housing.

An integrated blade cooler for electronic components comprises a blower with a radial impeller and a casing, an electric drive with a magnetic rotor and a stator, and a heatsink with heat-exchanging means and a base providing thermal contact with said electronic component and said heat-exchanging means. The casing of the impeller has an inlet and an outlet; said impeller comprises blades, a backplate disk and an axis of rotation; and the heat-exchanging means of the heatsink clothed in a cover plate with an outflow opening that being coincided with said inlet so that cooling gas flows through said heat-exchanging means, said blower inlet, said radial impeller and said blower outlet in a series way. The stator of the electric drive is made as a part of said casing of the blower so that said outflow opening serves as said inlet, and the radial impeller comprises magnetic means serving as a magnetic rotor of said electric drive. The stator is made as printed circuit board. At least part of said cover plate is made as a part of said casing so that said outflow opening serves as said inlet of the blower. The stator is located perpendicularly to the axis of rotation, and said magnetic means magnetized in the direction parallel to said axis of rotation. The heatsink has a recess on the side of an outflow opening, and the blower is located in said recess.

An electric blower (1) includes a stator (19) and a rotor (17). An impeller (4) is fixedly installed on a rotation shaft (3) of the rotor. A casing (6) encloses the impeller (4). The casing is provided with a number of exhaust openings (7) through which a part of an air stream suctioned by the impeller (4) is discharged, wherein each of the exhaust openings (7) is a form of a hole.

A blower having a turbo fan is installed in a scroll housing with a cutoff. The cutoff has an inclination angle of approximately 50 to 80 DEG , so that it is possible to draw in an increased amount of air while reducing the flow resistance of air. Accordingly, blowing efficiency is improved while simultaneously reducing the generation of noise and vibration.

The invention aims to provide an air conditioner indoor unit which has high blast efficiency and meanwhile can restrain moisture condensation of upper and lower wind plates, and an air conditioner. The air conditioner has a capacity-based-priority mode in which an upper surface in an upstream side end portion of upper and lower wind plates on lower sides is located on an extension cord of a lower side housing or at a position lower than the extension cord of a lower side housing, and a general refrigeration operation mode in which the upper surface in the upstream side end portion of upper and lower wind plates on lower sides is located at a position higher than the extension cord of the lower side housing. The distance between the upper and lower wind plates on lower sides and the lower side housing in the general refrigeration operation mode is longer than the distance between the upper and lower wind plates on lower sides and the lower side housing in the capacity-based-priority mode.

The present invention relates to an air conditioner for a vehicle, which includes a cold air passageway and a warm air passageway, and two blowers disposed in the air passageways, thereby rapidly ventilating the interior of the vehicle using the two blowers.

The invention discloses a double-head fixing type axial flow fan. The axial flow fan comprises a motor body, fan blades, a fixing bearing, and a machine shell, wherein the motor body is provided witha rotating shaft outputting rotating power, and the motor body comprises a stator and a rotor; the fan blades are assembled to one end of the rotating shaft; the fixing bearing comprises a head end bearing, and a tail end bearing which are arranged at the two axial ends of the rotor, and the head end bearing and the tail end bearing are fixed coaxial with the rotating shaft; the machine shell is wrapped on the outer side of the motor body; and the head end bearing and the tail end bearing are wrapped by a head wrapping ring and a tail wrapping ring respectively, the head wrapping ring and thetail wrapping ring are fixed to the machine shell through flow guiding pieces and connecting ribs, a hollow part is formed between the adjacent connecting ribs, and the machine shell forms a through air channel parallel to the axis direction of the rotating shaft. According to the double-head fixing type axial flow fan, the rotating shaft of the motor is limited by two bearings which are relatively far away from each other, and the two bearings are firmly fixed, so that vibration and jitter during operation of the axial flow fan can be controlled, and the influence of the arranged bearings onoverall wind resistance is very small.

A refrigerator is provided with a storage chamber (2) for housing stored items, a back plate (72) that covers the back surface of the storage chamber (2) from left to right, a condenser (11) for generating cold air, a cold air pathway (32) for circulating the cold air generated by the condenser (11) in order to send the cold air into the storage chamber (2) via first outlets (73a-73c, 74a-74c), a circulation pathway (81) for circulating the cold air in the storage chamber (2) using a circulation blower (85) without going through the condenser (11), and an ion generator (86) that is provided in the circulation pathway (81). The cold air pathway (32) and the circulation pathway (81) are provided to the rear of the back plate (72) of the storage room (2) from left to right.

The invention discloses a device for discharging percolate generated by aerobic fermentation of solid organic waste. The device comprises a drainage tee, wherein the first end of the drainage tee is communicated with a percolate discharge pipe; the second end of the drainage tee is provided with a detachable flushing cover cap; the third end of the drainage tee is communicated with a reducing pipe through a drainage plate; drainage holes are formed in the drainage plate; drainage floating balls are arranged on the drainage holes; and the reducing pipe is communicated with an air-permeating pipe. The discharge device can discharge the percolate effectively in time, has a stable discharge effect and a good environment effect, overcomes the defects that the storage water is smelly and the like, and has the beneficial effects of simple structure, operation flexibility, low failure rate, convenience for repairing and cleaning and the like. The device avoids short stream of stack blast air from a percolate pipe and improves blasting efficiency.

An organic solid waste fermenting box comprises a box body, a chain plate conveyor which is arranged in the box body, and is used for carrying and conveying a fermented material, the chain plate conveyor comprises a bracket and a plurality of chain plate components supported on the bracket, the plurality of chain plate components are sequentially connected to form a closed-loop structure, the chain plate components comprise upper layer chain plate components and lower layer chain plate components, wherein the upper chain plate components are used to carry the fermented material; the organic solid waste fermenting box further comprises an air flue, the air flue is fixed on the bracket of the chain plate conveyor, and is located between the upper layer chain plate components and the lower layer chain plate components of the chain plate conveyor, wherein the upper end of the air flue abuts on the first outer wall of the upper layer chain plate components. The organic solid waste fermenting box establishes a stable air supply system for the fermented material through the reasonable connection and layout of the air flue and the chain plate components, so that hot air containing oxygen is effectively blown into the fermented material to achieve the effective control of fermentation environment, and the fermentation efficiency is greatly improved.

The invention discloses a coal mine quality detection device, which comprises a pulverizer, and the pulverizer comprises: a shell, which is internally equipped with a grinding bowl, and is provided with a spray head and a blast pipe on the top surface; a grinding block, which is located above the grinding bowl, and has a top face sinking downwards to form a cavity, wherein the cavity is fixedly connected with an elastic rod and provided with at least one circle of spraying holes in a penetrating mode, and a first electromagnet is arranged at the top of the side wall of the cavity; a first driving mechanism, which is arranged on the outer side of the top of the shell, drives the grinding block to rotate along the horizontal plane and vertically move up and down, and is externally equipped with a second electromagnet; a blocking piece, which comprises a plurality of hole plugs, wherein any hole plug is fixedly provided with a connecting rod, the connecting rod is connected with a sieve tray, a third electromagnet is arranged on the top surface of the sieve tray, the bottom surface of the hole plug horizontally extends to form an abutting edge, and a spring is further arranged betweenthe sieve tray and the bottom surface of the cavity. A coal mine sample can be automatically cleaned after being ground, and the influence on the detection result of a next ground coal mine sample isavoided.

The invention discloses an efficient energy-saving centrifugal blower which comprises a machine base, and a motor is arranged on the machine base; the output end of the motor penetrates through the sealing sleeve and is connected with an impeller in the machine shell. The machine shell comprises a lower machine shell body, an upper machine shell body and a side cover. The impeller comprises blades, the blades are the shape of curved surfaces, and the curvature radius of each blade is 60-80; wind gathering folded edges are further arranged on the blades; the distance between each wind gatheringfolded edge and the corresponding blade is 8-15mm, and the distance is gradually reduced along the direction close to the center of the blades; an air outlet is formed in the upper machine shell body, the size of the cross section in the air outlet is reduced in a two-step mode, and the air outlet is sequentially divided into a first pressurizing area, a pressure stabilizing area and a second pressurizing area in the air flowing direction. According to the efficient energy-saving centrifugal air blower, the impeller is reasonable in design and good in air buckling effect, the air blowing efficiency is improved, energy consumption is reduced, the air outlet of the upper machine shell body is reasonable in design, air exhausting is smoother, the overall working efficiency is improved, and therefore the purposes of high efficiency and energy saving are achieved.