213results about How to "Improve air efficiency" patented technology

A projector includes: an optical component; a sealed structure within which the optical component casing is disposed, the sealed structure including: a loop air-circulation path in which air is circulated; an optical component casing having an inlet for the air to flow into the optical component casing and an outlet for the air to flow out of the optical component casing; a plurality of ducts that introduces the air into the optical component casing through the inlet and re-introduces the air flowing out of the optical component casing through the outlet into the optical component casing through the inlet; and a heat radiator having a heat-receiving member disposed inside the sealed structure to receive the heat of the air within the sealed structure and a heat-conducting member that penetrates an inside and an outside of the sealed structure, the heat-conducting member having a first end disposed inside the sealed structure and coupled to the heat-receiving member in a heat-transferable manner to transfer the heat of the heat-receiving member to a second end of the heat-conducting member disposed outside the sealed structure; and a circulation fan that circulates the air within the loop air-circulation path.

A method is provided for controlling an external control type fan clutch. The method controls the On / Off of an electromagnet-activated valve for an oil feed adjusting hole. The method uses a PID control on the basis of radiator cooling liquid temperature, fan speed, transmission oil temperature, vehicle speed, engine speed, compressor pressure of an air conditioner, and an On / Off signal of the air conditioner. Individual gains of the PID control are determined by a gain matrix containing the optimum fan speed demanded by the engine, the actual metered fan speed, and the engine speed. The PID control is made on the basis of the gains to that a control signal is outputted. The control method can improve mileage, raise the cooling efficiency of an air conditioner and suppress fan noise.

Provided is a wind power generator equipped with a circulating passage including a downward passage through which air in a nacelle flows downward from the nacelle through a tower and an upward passage through which the air that has flowed downward flows upward through the tower into the nacelle; and a heat exchanger part configured to exchange heat between the air and outside air at an intermediate portion of the circulating passage, wherein the upward passage is thermally insulated.

The invention discloses an air conditioner and an air conditioner indoor unit thereof. The air conditioner indoor unit comprises an enclosure provided with an air returning port in the top and an air outlet in the bottom, an air wheel arranged in the enclosure, a heat exchanger arranged in the enclosure and positioned between the air returning port and the air wheel, a first air guide plate connected to the bottom of the enclosure to open or close the air outlet in a pivotable mode, a second air guide plate arranged at one side, facing the inside of the enclosure, of the first air guide plate in the pivotable mode, and a control assembly for controlling the air conditioner indoor unit to performing refrigerating or heating, wherein the second air guide plate is configured in a mode of being attached to the first air guide plate when the air conditioner indoor unit performs refrigerating and being separated from the first air guide plate when the air conditioner indoor unit performs heating. According to the air conditioner indoor unit, the first and second air guide plates are arranged to the attaching state during the refrigerating of the indoor unit, so the wind resistance can be controlled in the minimum range, and the air out efficiency and air out effect are improved.

In a vehicle air conditioning apparatus, during a cooling operation, and a cooling and dehumidifying operation, a refrigerant flows through an outdoor heat exchanger, flows through a supercooling radiator, and then flows into a radiator to absorb heat. During a heating operation, the refrigerant flows through a heat exchanger and then is sucked into a compressor without passing through the supercooling radiator. During a first heating and dehumidifying operation, the refrigerant flows through another radiator, flows through the supercooling radiator, and then flows into another heat exchanger to absorb heat.

A retrofit heat transfer unit, including: a housing for the retrofit unit, including inlet and outlet ports for water and refrigerant; a water pump, in fluid communication with the water inlet port, the water pump adapted to pump water from a water source; a heat exchanger, in fluid communication with the water pump, the water outlet port, the refrigerant inlet port and the refrigerant outlet port; and a thermostat, configured to measure a temperature of the pumped water and activate the water pump when the water is below a predefined low temperature and cease to pump when water is above a predefined high temperature. The retrofit unit is also adapted to receive heated refrigerant fluid from an air conditioner and direct the refrigerant through the heat exchanger and direct the pumped water into the heat exchanger so that the refrigerant heats the water and the water cools the refrigerant.

A front panel for an integral type air conditioner is provided. The front panel includes a side intake hole formed at a side portion thereof such that air from a space to be air conditioned is taken in there through. The front panel also has a discharge hole through which the intake air is discharged.

A platform seal strip, in particular for use in a gas turbine blade assembly, is provided. The platform seal strip includes an upper side, a lower side, a first portion and a second portion. The width of the first portion is smaller than the width of the second portion. The first portion and the second portion are at least partially bent downwards such that the upper side includes a convex surface portion and the lower side includes a concave surface portion.

An air suspension system includes an air tank, an air drier, a compressor, and an air spring, which are sequentially provided in a first line. The air suspension system further includes a second line, a third line, an intake line, and a discharge line, which are connected to the first line. The first line, the second line and the third lines can be switched by a 4-port / 2-position solenoid valve, and the first line is selectively connected to the intake line by a 3-port / 2-position solenoid valve.

The invention provides an operation control method, an operation control device, an air conditioner and a storage medium. The operation control method comprises the following steps that an operation command of a specified heating mode is responded, and an indoor fan is controlled to rotate reversely so as to enable air to be fed from an air outlet; and working condition parameters of the air conditioner are detected to meet the preset air outlet condition, the indoor fan is controlled and adjusted to rotate forwards so as to discharge the air from the air outlet. According to the technical scheme, an airflow is formed through the driving of the indoor fan and is blown to an indoor heat exchanger so as to accelerate the heating of the indoor heat exchanger so that the duration of cold prevention air can be shortened, the air outlet efficiency of the heating air supply can be improved, useless power consumption generated in the operation process of an outdoor unit can be reduced, and therapid heating requirement can be met as well by shortening the duration of the cold prevention air.

This invention relates to a small power cage induced motor including a shaft, a rotor, a stator, an end cover and a base, in which, said rotor includes a rotor iron core and internal fan vanes extending outside axially from the end part, said stator includes a stator core and a winding, the end of which surrounds the vanes of the internal fan characterizing that the axial outer end of the vane is connected to a turning side surrounding said shaft.

The invention provides a small-power motor with an internal air-cooling system. The motor comprises a rotary shaft, a rotor, a stator, an end cover and a machine base, wherein the rotor is provided with a rotor iron core and internal fan blades extended outward from the end part of the rotor along the axial direction; and the stator is provided with a stator iron core and a stator winding, wherein the end part of the stator winding is wound around the internal fan blades of the rotor. The motor is characterized in that: the axial outer ends of the internal fan blades are connected with a surface of revolution of the rotary shaft. Due to the adoption of the design, the air efficiency of the internal fan is improved, and all circulation air flow is made to pass through the end part of the rotor winding, so that the temperature rise of the motor winding is lowered, and the structure is simple and the cost is low.

The invention relates to a centrifugal type impeller which comprises a wheel disk, a wheel hub and a plurality of blades, wherein the wheel hub is positioned at the center of one side surface of the wheel disk and is provided with a center axial line; an impeller rotates around the center axial line; the multiple blades are arranged on the side surface and are positioned in an annular region surrounded by the periphery of the wheel hub and the periphery of the wheel disk; the cross sections of the blades are S-shaped along the direction perpendicular to the center axial line and comprise two tangent curves with opposite directions; the two curves comprise front blade sections extending from the end part of the wheel hub to a tangent point and rear blade sections extending from the tangent point to the periphery of the wheel disk; the tangent point is positioned at the position which is 76-95 percent of the chord length of each blade away from the end part of the wheel hub. The blades are S-shaped, and the tangent point of the S-shaped curves is positioned at the position which is 76-95 percent of the chord length of each blade; the position of the tangent point enables the rolling suction range of vortex to be effectively suppressed and the intensity of the vortex to be reduced after vortex formation and before vortex falling, and therefore, the flowing resistance of air flow is reduced, and the air discharging efficiency of the impeller is improved. The invention also relates to a blowing and sucking device comprising the centrifugal type impeller.

A method for increasing compressed air efficiency in a pump utilizes an air efficiency device in order to optimize the amount of a compressed air in a pump. The air efficiency device may allow for controlling the operation of the air operated diaphragm pump by reducing the flow of compressed air supplied to the pump as the pump moves between first and second diaphragm positions. A sensor may be used to monitor velocity of the diaphragm assemblies. In turn, full position feedback is possible so that the pump self adjusts to determine the optimum, or close to optimum, turndown point of the diaphragm assemblies. As such, air savings is achieved by minimizing the amount of required compressed air.

The invention provides a ceiling air-conditioning tail end wind guide structure and an air conditioner. The ceiling air-conditioning tail end wind guide structure comprises an upper shell (1) and a lower shell (2), a wind outlet (3) is formed between the upper shell (1) and the lower shell (2) and circumferentially exhausts wind by 360 degrees. According to the ceiling air-conditioning tail end wind guide structure, the structure can solve the problem that wind cannot blow to indoor partial regions as wind blowing dead space exists between two adjacent wind outlets of a ceiling air conditioner in the prior art.

A condenser for a vehicle may include first and second headers, a heat-exchanging portion disposed between the first and second headers, a coolant tank mounted at an outer side of the first header and having a coolant inlet and a coolant outlet, the coolant tank to supply the coolant to the heat-exchanging portion and to receive through the first header the coolant passing through the heat-exchanging portion and the second header, and a receiver-drier portion connected to the second header to perform gas-liquid separation and moisture removal from the coolant having passed through the heat-exchanging portion, wherein an inner space of the coolant tank is divided into an upper portion and a lower portion by a first partition disposed between the coolant inlet and the coolant outlet, and a spiral groove for causing the coolant to rotate is formed at the upper portion connected to the coolant inlet.

The present invention provides a storage box, which comprises a box body and a vacuum pumping component capable of being fixed on the box body. The box body is provided with a vacuum pumping channel. The vacuum pumping component is detachably connected with the vacuum pumping channel. When the vacuum pumping component is connected to the vacuum pumping channel, if the air pressure of an inner cavity of the box body is greater than the threshold, gas in the inner cavity of the box body will be pumped to allow the inner cavity of the box body to maintain the vacuum state. During the daily use of consumers, a plurality of box bodies and a vacuum pumping component may be prepared. When store items of a specific box body need to be stored for a long time, the vacuum pumping component is fixed on the box body.

The invention discloses an indoor air conditioner and a control method thereof, relating to the technical field of air conditioners and aiming at solving the problem that the air conditioner of the prior art blows straightly to cause discomfortableness of people. The indoor air conditioner comprises a shell, wherein a heat exchanger and a first fan are arranged in the shell, a first air opening is formed in the shell, the first fan is positioned on one side of the heat exchanger and is opposite to the first air opening, a second air opening is formed in the top of the shell, the second air opening and the first opening are symmetrically arranged on two sides of the heat exchanger, a second fan is also arranged at the second air opening, and the second fan can drive air to blow in from the first air opening and blow out from the second air opening. The indoor air conditioner is used for changing the temperature of the indoors.

The invention provides a multi-functional hot air gun. The multi-functional hot air gun includes a machine head and a handle assembly; a hot air device for generating the hot air is arranged in the machine head, the handle assembly comprises a handle and an extension rod detachably connected to the handle, the handle is connected to the machine head and can be rotated relatively, and the hot air gun further includes a detachable battery pack; and the battery pack is electrically connected with the hot air device and supplies the power to the hot air device so as to enable the hot air device towork, and the handle is connected with the machine head and can be rotated relatively, in this way, a user can operate conveniently in different use environments; when the direction of the hot air blowing out of the machine had is coincide or parallel or approaching parallel to the axis of the handle, the hot air gun can be used as a carbon igniting machine and can be used as a lawn mower with the extension rod; and when the direction of the hot air blowing out of the machine head intersects with the axis of the handle or is located on one side of the handle, the hot air gun can be used for the conventional hot air operation such as plastic product melting for melting connecting.

The invention discloses a coaxial opposite-rotation electric ceiling fan. The coaxial opposite-rotation electric ceiling fan comprises a first ceiling fan body, a second ceiling fan body, a coupler and a starting device. The first ceiling fan body comprises a first motor, a first machine shaft penetrating a stator of the first motor and fan blades connected with a rotor of the first motor. The second ceiling fan body comprises a second motor, a second machine shaft penetrating a stator of the second motor, and second fan blades connected with a rotor of the second motor. The first motor and the second motor are opposite in rotation direction. The coupler is used for connecting the first ceiling fan body with the second ceiling fan body which are arranged in advance into a whole. The starting device is arranged between the first ceiling fan body and the second ceiling fan body, and the first ceiling fan body and the second ceiling fan body are electrically connected with the starting device. According to the coaxial opposite-rotation electric ceiling fan, the air supply efficiency of the coaxial opposite-rotation electric ceiling fan can be improved, torque balance and loss reduction are achieved, a new platform is provided for electric ceiling fan appearance design, and the production speed of the coaxial opposite-rotation electric ceiling fan is increased on the premise that the existing ceiling fan motor manufacturing technology and dies are not overturned.

The invention provides an air pipe indoor machine. The air pipe indoor machine comprises a shell, wherein the inner part of the shell is fixedly provided with a heat exchanger, the lower part of the heat exchanger is provided with a water pan, one side of the heat exchanger is provided with a draught fan, the shell is provided with an air inlet and an air outlet which are respectively positioned at two sides of the heat exchanger, and the air outlet is arranged on the lower side wall of the shell. According to the air pipe indoor machine provided by the invention, the air outlet is arranged on the lower side wall of the shell, thus an air outlet direction of the air pipe indoor machine is directly enabled to face downwards, the problem that the downward air outlet direction of a common small-sized household air pipe indoor machine can be realized by installing an air pipe on the common small-sized household air pipe indoor machine is effectively solved, and the air outlet efficiency and the heating comfort are increased.

An air compressor includes an internal combustion engine for driving an air compressing part that generates compressed air, which is stored in an air-storage tank. At a point in time when the air pressure inside the air-storage tank has increased to a first set pressure, the supply of fuel to the engine is cut off, thereby stopping the engine and the combustion of fuel. At a point in time when the air pressure inside the air-storage tank has decreased from the first set pressure to a second set pressure, a starter motor is started up to resume the operation of the engine.