2723results about How to "Increase air volume" patented technology

In a vehicle air conditioner, a first air passage through which outside air flows and a second air passage through which inside air flows are provided to be partitioned from each other, so that outside air in the first air passage is blown toward a front seat side of a passenger compartment from a front air outlet after passing through a first part of a heat exchanger, and inside air in the second air passage is blown toward a rear seat side of the passenger compartment from a rear air outlet after passing through a second part of the heat exchanger, during a double layer flow mode. Thus, in the second air passage, temperature of air sucked from an inside air port can be set to temperature of inside air inside the passenger compartment, while air pressure loss due to an inside air suction is decreased. As a result, in the vehicle air conditioner, air-conditioning capacity for the rear seat side is improved.

There is provided an exhaust section of a gas turbine and a gas turbine that can cool a strut and the periphery of a bearing without decreasing the efficiency of the gas turbine. A structure of an exhaust section of a gas turbine has: a casing in which a gas path part is formed; a bearing part that rotatably supports moving blades of a turbine section; a strut that extends inwardly from the casing and supports the bearing part; an opening formed in the casing; and a cooling flow channel that extends from the opening toward the bearing part along the strut to guide air at a lower temperature than an exhaust gas flowing in the gas path part to the gas path part and opens into the gas path part at a position downstream of a last-stage moving blade of the turbine section.

A smoke detector that includes at least one image-forming reflective surface, at least one light source and at least one light sensor. In operation, at least one light source emits light from a first area thereon and the reflective surface focuses the light onto a second area that includes at least one light sensor, wherein the first area is smaller than the second area.

A method and an apparatus for foaming a refrigeration container (10) for foodstuffs, with a reactive polyurethane mixture injected under vacuum condition into hollow peripheral walls of the refrigeration container (10) enclosed in a foaming cell. The foaming cell includes a bottom table (20) for supporting the refrigeration container (10), side shore panels (16, 17, 18, 19) and an internal shore plug (23) fastened to a closure lid (21), conformed to rest against outer and inner surfaces of the peripheral walls of the refrigeration container (10), and sealing gaskets (40, 43, 44, 45) between contact surfaces of the side shore panels (16, 17, 18, 19), the bottom table (20) and the closure lid (21), to provide an air-tight closable foaming cell connectable to a vacuum source (48).

One or more acoustic transducers of a device may be adjusted based on automatic detection of device proximity to the user. In a mobile telephone, when the user is using the receiver and holding the telephone against his/her ear, if the telephone detects that the user has moved the telephone further from his/her ear, the telephone will raise the receiver volume. Similarly, if the user is using the speaker, the telephone will adjust the speaker volume as user distance from the telephone changes. In another embodiment the telephone may fade between the receiver and the speaker. Volume is not the only acoustic property that could be adjusted according to user proximity. Frequency response is another property that could be adjusted, such as using appropriate electronic filtering, or by turning on another transducer that is not otherwise being used.

In an axial fan, a case (40) accommodating the fan motor stator (50) is anchored into a bearing retainer (10), in which ball bearings (20, 21) as a bearing unit are accommodated, along a bulge part (13) formed on the lower end portion thereof. The case (40) extends heading axially downward, wherein there is no diametrical overlap between the ball bearings (20, 21) and the stator (50). Since only the bulge part (13) of the bearing retainer (10) is fixed to the case (40), heat arising from the stator (50) is thermally conveyed via the case (40) only to the bulge part (13). The fact that the thermal conveyance zone is minimal enables unrestrained curtailment of heat transmitted to the ball bearings (20, 21). As a result the axial fan can be designed for prolonged bearing lifespan.

In a battery cooling system that cools a battery by using conditioned air (inside air of a passenger compartment) of a vehicle air conditioner, a battery control unit controls a battery blower to increase an air amount supplied to the battery when a predetermined condition is satisfied. In contrast, an air-conditioning control unit decreases a compression capacity of a compression device after an air amount supplied to the battery is increased to a predetermined amount by the battery control unit. For example, the air-conditioning control unit decreases the compression capacity of the compression device after a predetermined time passes after the air amount supplied to the battery is increased to the predetermined amount. Accordingly, the temperature inside the passenger compartment and the compression device can be stably controlled.

The invention relates to a centrifugal fan for an oil and smoke exhaust machine and a method for manufacturing a volute profile line thereof. The centrifugal fan comprises a volute, a blade wheel, an air inlet ring and a motor, wherein the volute is provided with an air inlet and an air outlet; the blade wheel is arranged in the volute; the air inlet ring is arranged on the air inlet; the motor drives the blade wheel to rotate; the volute comprises a volute top plate, a volute enclosing plate and a volute base plate; and the volute enclosing plate is connected between the volute top plate and the volute base plate. The centrifugal fan is characterized in that the outline of the inner side face of the volute enclosing plate is the volute profile line, and the volute profile line is formed by the smooth transitional connection of a first straight line DE, a first arc line EF, a second arc line FG, a spiral line GH and a second straight line HI. According to the invention, after considering problems in the prior art and aiming at the characteristics of large impellor size and small volute size of the centrifugal fan for the oil and smoke exhaust machine, a design method of the volute profile line of the centrifugal fan is presented, thereby making great contribution to improving the air rate, air pressure and efficiency of the centrifugal fan for the oil and smoke exhaust machine and reducing the pneumatic noises.

Provided is an air conditioner, which is constituted such that a plurality of left and right blades disposed at the blowout ports of an indoor equipment can be controlled independently for a plurality of blocks, and such that the area to be air-conditioned is divided into a plurality of areas by a plurality of human body sensors, and which is equipped with a control device for controlling the left and right blades independently for the individual blocks in accordance with the reaction results of the human body sensors. On the basis of at least one of the area characteristics indicating the frequency, which is decided by accumulating the reaction results of the human body sensors a predetermined number of times and which indicates the presence of a person in each of the areas, the personalactivity in the personal presence area, and the adjacency of the personal absence area to the personal presence area, the control device can control the left and right blades thereby to change the opening ratio of the blowout ports to the plural areas.

An air flow producer of non-rectangular shape is adapted for installation in a rectangular opening of a drop ceiling. In preferred form, the producer has a circular housing with an open bottom covered with a grill. A fan with a rotary blade assembly is mounted in the housing to produce a downward air flow, and a circular metal band surrounding the rotary blade assembly defines an air discharge zone centered in the grill and an annular air intake zone surrounding the discharge zone. Flow rates are optimized by positioning the band close to the grill. The grill is preferably integrally molded with a rectangular flange that seats in the drop ceiling opening. The flange supports the housing from the framework and closes the opening to prevent the producer from drawing air from the plenum above the drop ceiling.

The invention discloses an air conditioner and an air supply device thereof. The air supply device of the air conditioner comprises an outer housing and an inner housing. The inner housing is sleeved with the outer housing, and an inner cavity is defined between the outer housing and the inner housing. The outer housing is a barrel-shaped shell with the front end and the rear end being open. The outer housing is provided with an air inlet used for enabling an air duct in the air conditioner to be communicated with the inner cavity. The inner housing is a barrel-shaped shell with the front end and the rear end being open. The rear end of the outer housing and the rear end of the inner housing are connected in a sealed mode. An air outlet used for enabling the inner cavity to be communicated with the external environment is defined by the front end of the outer housing and the front end of the inner housing. According to the air supply device of the air conditioner, the difference between the outlet air temperature of the air conditioner and the environment temperature can be reduced, the air output can be increased, and human body comfort can be improved.

Cellulosic particles for pharmaceutical preparation which comprise at least 10 wt. % crystal cellulose having an average degree of polymerization of 60 to 350 and have an apparent tap density of 0.60 to 0.95 g/mL, a degree of sphericity of 0.7 or higher, a shape factor of 1.10 to 1.50, and an average particle diameter of 10 to 400 mum.

The invention discloses an air conditioner indoor unit. The air conditioner indoor unit comprises a base, a mounting shell, a back plate, a front panel, a lower volute fan assembly, an upper volute fan assembly and an evaporator assembly, wherein the base, the mounting shell, the back plate and the front panel define an accommodating space; the lower volute fan assembly is arranged inside the accommodating space and comprises a lower fan, a first volute and a second volute, and a lower air duct is defined between the first volute and the second volute; the upper volute fan assembly is arranged above the lower volute fan assembly and comprises an upper fan, a first upper volute and a second upper volute, and an upper air duct is defined between the first upper volute and the second upper volute; the evaporator assembly is arranged inside the accommodating space and is constructed in a mode that after the evaporator assembly exchanges heat with air entering the accommodating space from a return air inlet of the back plate, the air is guided respectively by the upper fan and the lower fan to enter the lower air duct and the upper air duct. The upward-downward air supply double cross-flow air conditioner indoor unit is high in heating efficiency and low in energy consumption and use costs.

In an air conditioning apparatus for a vehicle, a double layer flow mode is set when the maximum heating state is set during an air outlet mode where both a foot opening portion and a defroster opening portion are opened. During the double layer flow mode, an air passage of an air conditioning case is partitioned into a first air passage through which inside air flows and a second air passage through which outside air flows, in such a manner that the first air passage communicates with the foot opening portion and the second air passage communicates with the defroster opening portion. When the double layer flow mode is set, the maximum rotation speed of a blower for blowing air is reduced by a predetermined level as compared with an entire outside air mode or an entire inside air mode. Thus, heating capacity for a passenger compartment of the vehicle can be improved.

Blades are provided on a fan body such that an outer diameter d2 of the fan body is in a range of 45 mm≦d2≦50 mm, an axial height h1 at a substantially intermediate position of the blade is in a range of 0.2≦h1/d2≦0.3 with respect to the outer diameter of the fan body, and an axial height h2 at an outer peripheral edge of the blade is in a range of 0.12≦h2/d2≦0.17 with respect to the outer diameter d2 of the fan body.

An air conditioning apparatus for a vehicle includes a front air-conditioning unit for adjusting a temperature of air blown toward a front seat side in a passenger compartment, and a rear air-conditioning unit for adjusting a temperature of air blown toward a rear seat side in the passenger compartment. In the front air-conditioning unit, a ratio between an amount of air passing through a front heater core and an amount of air bypassing the front heater core is adjusted by an air mixing door, and the temperature of air blown toward the front seat side in the passenger compartment is adjusted by the rotation of the air mixing door. On the other hand, in the rear air-conditioning unit, a flow control valve for controlling a flow rate of hot water flowing into a rear heater core is provided, and the temperature of air blown toward the rear seat side in the passenger compartment is adjusted by the flow control valve. Thus, the air conditioning apparatus has a downsized rear air-conditioning unit while preventing air-conditioning capacity for the passenger compartment from being lowered.

A portable remote wireless control for establishing different temperatures in separate portions of a building. The remote control not only regulates hot and cold airflow through rotatable damper vanes in one or more diffusers, but it also recharges the batteries that power the wireless receiver, servomotor and servomotor controls that selectively rotate the damper vanes. Damper vane rotation regulates air flow from the diffuser to control the temperature in the portion of the building. The damper vanes, moreover, are of a light plastic with a marginal band of a foam material to enable the vanes to rotate silently and freely also to form a seal that eliminates a great deal of air seepage past the individual vanes.

The invention discloses a system and method for power generating by jointly recovering the waste heat of a flue gas of a sintering machine and an exhaust gas of a cooling machine, belonging to the technical field of power generation by using waste sintering heat of a steel and iron plant. The power generating system comprises a sintering machine flue gas waste heat utilizing system, a cooling machine exhaust gas waste heat utilizing system, a turbine generating system and a relevant auxiliary system, wherein a main waste heat discharging boiler is utilized to recover the waste heat of the flue gas of a high-temperature segment of the tail part of the sintering machine; a cooling machine waste heat boiler is utilized to recover the waste heat of the high-temperature exhaust gas of the cooling machine; and a high-temperature electric butterfly valve is arranged between the high-temperature segment and a low-temperature segment of a large flue positioned on the tail part of the sintering machine to prevent the wind pickup temperature of the flue gas from being reduced because a low-temperature flue gas and a high-temperature flue gas are directly mixed so as to ensure the high-temperature flue gas to enter the main waste heat discharging boiler for waste heat recovery. The system and method effectively utilizes the waste heat resources of the high-temperature flue gas of the machine tail of the sintering machine and a hot gas of the high-temperature segment of the cooling machine, enhances the waste heat recovery and utilization efficiency of a sintering process and increases the power generation capacity of the waste heat power generating system.

This invention is centrifuge type fan and fresh air device with indoor air purifying function. The centrifuge type fan includes wind wheel; wind channel on external part of wind wheel; engine driving the wind wheel. The said wind channel is the cavity formed by two wind channel boards, front side board, back side board and external surface of wind wheel. The front and back side boards connect to both sides of two wing channel boards. Both ends of wind channel have an air current outlet opening. Thus, they form double wind channels with double outlet openings. The absorbed air current is discharged to two directions at same time through two wind channels and two air outlet openings. The fresh air device includes machine case; centrifuge type fan group combined by two centrifuge type fans; air filtrating element; front board for control and display. This invention increases working efficiency. It also reduces noise and energy loss.