70results about How to "Reduce the air speed" patented technology

The present invention is a compact, highly efficient method for convectively cooling substrates, where the substrates contain light emitting diodes (LEDs) or other highly dissipative electronic components. The methodology exhibits very low acoustic noise, extended operating life of moving parts and minimum susceptibility to dust. Also, the improved cooling methodology for high brightness light emitting diodes employs one or more high-density, high-surface-area, single or multiple-element metallic structures having superior heat-transfer properties in the presence of low-speed, minimally turbulent air flow, and enhanced electronic-power-management.

An air bag apparatus having a constitution of developing an air bag folded to contain in a case to a rear side of a vehicle by making an expanding gas flow from a gas flow inlet in expanding to develop the air bag. The air bag is arranged with a through hole. The air bag is constituted by a ring-like member arranged with a lower expanded portion arranged with a gas flow inlet, an upper expanded portion arranged to an upper side of the lower expanded portion to communicate with a front side of the lower expanded portion, and a rear expanded portion arranged to connect to a rear part of the lower expanded portion and a rear part of the upper expanded portion at a surrounding of the through hole. The air bag is constituted to finish to expand by closing the through hole.

A pressure gradient or differential in a product distribution line for conveying granular particulate material, including at least one of seed or fertilizer, in an air flow to an agricultural field consistently decreases as air speed and velocity in the product distribution line decreases until a critical air speed is reached. Below the critical air speed, the particulate material may become susceptible to falling out of the air flow to potentially cause a blockage in the system. Accordingly, pressure sensors arranged in the product distribution line can be used to generate an air flow at an optimum velocity above the critical air speed yet below a maximum air speed associated with inefficient operation. The air flow can be adjusted to maintain the optimum velocity despite changes in at least one of a type of particulate material or a rate at which the particulate material is metered.

A lamp unit includes a reflector with a lamp mounted therein, a reflector holder holding the reflector, and an ejector member fixed to the reflector holder, for ejecting air to cool the lamp, the ejector member including an insertion member with a tubular stud inserted therein for supplying compressed air, a fluid passage forming member having a fluid passage for being supplied with air from the stud, and a hole defined in a distal end of the ejector member.

The invention discloses a water-ring phase-change energy-storage under-floor air distribution air-conditioning system and an energy storage and energy release method thereof. The output end of an air source cold / hot water unit is connected with the input end of a water pump; the output end of the water pump is connected with the input end of a first electric valve and the input end of a second electric valve respectively; the output end of the first electric valve is connected with the cold / hot water input end of an air handling unit; the cold / hot water output end of the air handling unit is connected with the input end of the air source cold / hot water unit; the output end of the second electric valve is connected with the input end of a phase-change energy-storage rectifying device; the output end of the phase-change energy-storage rectifying device is connected with the input end of the air source cold / hot water unit; the first air output end of the air handling unit is connected with the air input end of a room through a first pipeline; the air output end of the room is connected with the first air input end of the air handling unit through a second pipeline; and the second air input end of the air handling unit is communicated with the atmosphere. By the system and the method, a cold / hot load during the day can be transferred to the night with low electricity price by utilizing the difference between peak electricity price and valley electricity price; the difference between a peak electric load and a valley electric load is relieved; and the economical efficiency of equipment operation is improved.

The invention discloses a dehumidifier which comprises a shell, a cross-flow fan arranged in a wind channel, and three heat exchangers arranged in the wind channel and each corresponding to a wind inlet. The shell comprises a first panel, a second panel, a third panel and a fourth panel which are connected in sequence. The first wind inlet is formed in the first panel, the second wind inlet and the third wind inlet are formed in the third panel, and a wind outlet is formed in the fourth panel. The wind channel communicating with the first wind inlet, the second wind inlet, the third wind inletand the wind outlet is formed in the shell. An air flow is led into the wind channel through the first wind inlet, the second wind inlet and the third wind inlet, and the air flow in the wind channelis blown out from the wind outlet. The wind inlet side of the cross-flow fan is arranged facing the first panel and back on to the third panel. Each heat exchanger is a combination of two dehumidifying assemblies and an air compensating condenser. The specific value of the width h1 of the first wind inlet to the width h2 of the second wind inlet to the width h3 of the third wind inlet is (2-4):(1.5-4):1. The energy efficiency level of the dehumidifier can be improved.

The invention relates to the technical field of waste gas treatment, and provides a chemical tail gas treatment device capable of avoiding blockage and achieving automatic cleaning, the chemical tail gas treatment device comprises a treatment tank, the top of the treatment tank is fixedly connected with a shell, the inner wall of the shell is fixedly connected with a pipeline, and the left side and the right side of the pipeline are fixedly connected with expansion assemblies; the inner wall of the expansion assembly is movably connected with a lever. According to the chemical tail gas treatment device and method capable of avoiding blockage and achieving automatic cleaning, firstly, tail gas is conveyed through a pipeline, chemical particles existing in the tail gas can be attached to the outer wall of a filter plate along with the tail gas passing through the filter plate, the air permeability of the filter plate is reduced, and the air pressure in the pipeline is increased along with the fact that the tail gas continuously enters the pipeline; the piston is extruded by air pressure, and the piston compresses the compression spring to increase the volume in the pipeline, so that the air pressure in the pipeline is reduced, air circulation is prevented from becoming poor, and the pipeline is extruded by the air pressure.

A mobile terminal includes a front case accommodating a display on a front surface and having a receiver for outputting a sound, a rear case coupled to one side of the front case, a rear cover covering a rear portion of the rear case to form an appearance and having an air vent hole allowing air to flow in and out to maintain predetermined pressure, and a circuit board installed been the front case and the rear case, wherein an air flow port is formed on an inner side surface of the rear cover and protrudes from the rear cover toward the rear portion of the case to guide movement of air formed by an external force acting on the rear cover.

The present invention is a compact, highly efficient method for convectively cooling substrates, where the substrates contain light emitting diodes (LEDs) or other highly dissipative electronic components. The methodology exhibits very low acoustic noise, extended operating life of moving parts and minimum susceptibility to dust. Also, the improved cooling methodology for high brightness light emitting diodes employs one or more high-density, high-surface-area, single or multiple-element metallic structures having superior heat-transfer properties in the presence of low-speed, minimally turbulent air flow, and enhanced electronic-power-management.

A system (16) for providing an air lubricating layer between a substantially flat bottom (6) of the hull (4) of a vessel (1) and water flowing under the bottom as the vessel is moving through the water. The system has a cavity (33) with a deflector. The deflector has an elongate part (29,34,34′) extending in the length direction of the cavity over at least at least 5%, preferably at least 10% of the cavity length L, wherein a projected area of the at least one deflector member (24,24′-26,26′) on the interface plane (30) covers at least 25%, preferably at least 50%, most preferably at least 75% of the surface area of the interface plane.

The invention relates to an air conditioner assembly, a control method, a control device and an air conditioner and belongs to the field of air conditioners. The air conditioner assembly comprises anair flue which comprises an air inlet, and the area of the air inlet is larger than the heat exchange area of a heat exchanger. The area of the air inlet is increased so that the area of the air inletcan be larger than the heat exchange area of the heat exchanger, under the condition that the air inlet quantity is certain, increase of the area of the air inlet can reduce the air inlet speed, andtherefore the air inflowing at the low air speed can be achieved; at the low air speed, the evaporating temperature is relatively low and is lower than the air dew point temperature; and meanwhile, atthe lower air speed, the heat exchange efficiency of the air and the heat exchanger can be effectively improved, the coagulating effect of water in air can be increased, and the dehumidification effect is accordingly improved.

A lithium titanate doped with a barium oxide and a manufacturing method thereof are provided. At first, a barium source material, a lithium source material and a titanium source material are mixed together to prepare a mixture. Then, a drying process is applied to the mixture. Thereafter, a sintering process is applied to the mixture after the drying process, thereby obtaining the lithium titanate doped with the barium oxide. The lithium titanate doped with the barium oxide has the following chemical formula: BaxLi4Ti5O12+x, wherein 0.006@x@0.12. A lithium ion battery is also provided, which has an excellent cycling stability, a fast charge-discharge capability and a high safety performance.