119results about How to "Improve emission quality" patented technology

A precision voltage control circuit applicable to a PWM (Pulse Width Modulation) circuit can offer CCFL (Cold Cathode Fluorescent Lamp) or EEFL (External Electrode Fluorescent Lamp) tubes a stable high frequency voltage or current, so that each CCFL or EEFL tube can get an appropriate compensation current and an optimal emitting efficiency and enhance its emitting quality. The circuit also has an overload current, low current, and overload voltage and low voltage protective circuit to protect the CCFL or EEFL tubes from being injured. The circuit can also be applied to the TFT LCD TV or other large LCD panels, and develops the best display effect of each LCD tube.

The present invention discloses an air-intake alcohol-spraying device of desel engine and its spray control method. Said device is mainly formed from nozzle mounted in the air inlet tube of engine ornozzle mounted in the inlet channel of every cylinder, electric control unit for driving nozzle to open or close it and various sensors of engine load, rotating speed, cam shaft position and cooling water temp. for transferring information to electric control unit. Said invention can substituted diesel oil by partial alcohol fuel, so that the carbon smoke discharge can be reduced by 40%, at the same time the discharge of NOx also can be reduced by above 30%.

The method of the invention controls engine speed during engine starting for a hybrid electric vehicle that includes a battery, an engine and a generator, acting as a motor, whereby generator torque assists the engine to develop a stable running speed throughout an engine start event, particularly a cold engine start event, without violating battery power limits.

MgO pellets are provided for use as a protective layer for a plasma display panel providing improved physical properties. The plasma display panel includes first and second substrates facing each other. A plurality of first and second electrodes are internally formed on the first and the second substrates. Dielectric layers cover the first and the second electrodes and a MgO protective layer covers one of the dielectric layer. The MgO protective layer has 400 columnar crystals per μm².

A device and method for conditioning and/or volumetric heating fuel within an intermittent combustion engine in order to enhance fuel combustion and emission performance is provided. Such a device can include a fuel injector configured to eject a fuel spray having a trajectory within a combustion chamber, an energy source capable of emitting electromagnetic energy, and an optical fiber configured to transmit electromagnetic energy emitted from the energy source into the combustion chamber, and is also configured to cause fuel conditioning.

A control device switches an engine between normal operation mode and special operation mode. In the normal operation mode, an independent cylinder configuration is formed to produce combustion independently in individual cylinders. In the special operation mode, a two-cylinder interconnect configuration is formed so that burned gas discharged from preceding cylinders currently in an exhaust stroke is introduced into following cylinders currently in an intake stroke through intercylinder gas channels, a lean mixture having a high air-fuel ratio is combusted in the preceding cylinders, and a mixture produced by supplying fuel to the burned gas is combusted in the following cylinders. When the engine is switched between the special operation mode and the normal operation mode, the control device selects transitional operation mode, in which the two-cylinder interconnect configuration is formed, and interrupts combustion in the preceding cylinders while producing combustion in the following cylinders by compression ignition.

There is a reflective layer covering almost the entire surface of the light emitting portion except the portions where the light emitting elements are arranged, it is possible to increase the reflectivity of the light emitting portion to realize a higher luminance. In addition, the heat generated from the light emitting elements can be dissipated through the reflective layer, so that it is possible to prevent overheat of the light emitting device, and it is thus possible to improve the reliability of the light emitting device.

A method and apparatus is provided for continuous microbial seeding of waste-laden water directly within septic tanks and similar treatment facilities in order to improve quality of effluent discharge, thereby reducing or eliminating problems commonly associated with such effluent (including, but necessarily limited to, clogging of conventional drain fields). Waste water to be treated flows into a multi-chambered treatment tank. At least one bio-reactor is installed in such tank, and provides for in-situ growth of desired microbial populations within said tank. The present invention allows for demand growth and improved mineralization of wastes both inside the tank, as well as downstream of the treatment tank.

A liquid crystal display (LCD) includes a backlight module and a heat dissipation device. The backlight module includes a frame, a reflector and several light sources. The reflector is disposed on the frame. The light sources disposed above the reflector. The heat dissipation device includes a fan, a sensor and a controller. The sensor is for sensing internal temperature of the LCD. The controller is connected to the fan and is for controlling the rotating speed of the fan according to the internal temperature of the LCD.

Provided is a multicolored lighting device capable of illuminating an operation surface with high efficiency and high quality and a coordinate input device. Themulticolored light sources are disposed in the vicinity of the edges of a bar-shaped light guide having a plurality of chromatic light sources. The chromatic light sources are symmetrically disposed with respect to the bar-shaped light guide.

The present invention is related to a structure for inverted F plane antenna, which is on a surface of a PCB by way of etching. The antenna comprises a pair of parallel sections constructed by a first parallel section, a second parallel section and a vertical section perpendicular to the two parallel sections, wherein the first parallel section connects to a grounding end of the PCB electrically, the second parallel section connects to a power end of the PCB, the vertical section has a bending portion with U shape to increase the length of receiving signals, therefore reflection signals may be highly decreased, and functions of receiving/emission stronger power are then achieved and receiving/emission band width is increased; further, under conditions of not extending the length of the vertical section and shrinking the volume of the antenna shall upgrade the convenience of the design.

This invention discloses a diesel engine rapid air refreshing device and method, which belongs to the technique of speeding smoke exhausting. The said device comprises the following: electric air compressor located on the air refreshing tube parallel with the air-in tube; serial device formed with waste gas turbo pressure increasing device; or parallel device formed with waste gas pressure increasing device. The said method comprises the following steps: the diesel engine accelerator pedal responds the sensor and receives the speeding signals; the electric control unit starts electric air compressor to process rapid air refreshing alone or together with waste turbo booster by series or parallel connection.

Methods and systems are provided for estimating a cooling demand of a vehicle powertrain component and selecting a mode of operation of a vehicle cooling system based on the estimated cooling demands of the vehicle powertrain component and the energy usage of the cooling system components. Based on the selected operating mode, each of a radiator fan speed, a coolant system pump output, a vehicle grille shutter opening, and an opening of vents coupled to a powertrain component insulating enclosure may be concurrently adjusted to minimize the cooling parasitic losses while satisfying the cooling requirements of the vehicle.

The present disclosure relates generally to semiconductor lasers and laser projection systems. According to one embodiment of the present disclosure, a method of operating a laser projection system is provided. According to the method, the laser projection system is utilized to display a sequence of pixelized image frames comprising an alternating sequence of relatively high intensity active projection periods Mod_ON and relatively low intensity inactive projection periods Mod_OFF. A complementary control signal transitions between an active state Q_ON during the relatively high intensity active projection periods Mod_ON and an inactive state Q_OFF during the relatively low intensity inactive projection periods Mod_OFF. The transition of the complementary control signal from the inactive state Q_OFF to the active state Q_ON is conditioned to anticipate initiation of relatively high intensity active projection periods Mod_ON such that it is optimized upon initiation of the relatively high intensity active projection periods Mod_ON. Additional embodiments are disclosed and claimed.

An exhaust valve early-closure control brings about blowback of exhaust gas into an intake system. However, if the exhaust valve early-closure control is executed, for example, during a first idle operation immediately following the startup of the engine, or the like, the amount of blowback exhaust gas becomes excessively large. Therefore, when the post-startup increase amount has decreased to or below a lower-limit criterion value, the ECU prohibits the exhaust valve early-closure control, and changes the control to a usual valve timing control. As a result, during a period during which the combustion state has a stability margin and the amount of emission of HCs and the like is large, the exhaust emission quality can be bettered by the exhaust valve early-closure control. Besides, when the post-startup increase amount has decreased, the combustion state can be stabilized by prohibiting the exhaust valve early-closure control.

The invention relates to a method for an electric control unit controlling oil injection, the method comprises the following steps: the values of the oil injection segment times N and the oil injection interval time t are determined according to the type of an engine; the electric control unit uniformly divides the total oil injection mass and the corresponding oil injection time into N segments to obtain the N segment times oil injection mass and the corresponding oil injection time segment of each segment oil injection mass; the electric control unit controls an oil injection device to execute the continuous oil injection process, and thus the oil injection device can inject oil in the oil injection time segment according to the segment times to finish the oil injection mass corresponding to the oil injection time segment and to close the oil injection between every two adjacent oil injection oil segments; the time of controlling the closing of the oil injection is t. By using the method, the fuel (gasoline and diesel oil) is easy to vaporize in a cylinder; thus the oil gas mixture in the cylinder can be well and fully burned, and the best power performance can be achieved and the quality of the tail gas is optimized.

The invention provides a fast warming method for a gasoline engine, which comprises the following steps: S1. a crankshaft position signal is obtained by a control unit through a crankshaft position sensor, and a cylinder which executes fast warming is determined by the crankshaft position signal; S2. when the engine is in a cool state, the crowding oil spout correction quantity of the fast warming is calculated by the control unit according to the determined rating data quantity and the collection of elevation factor quantity which influences the startup of the gasoline engine; S3. an execution command is sent by the control unit to the cylinder which executes fast warming; S4. when the ignition is successful, the warming process is completed. The method mainly greatly enhances the startup success ratio of the gasoline engine by correcting the oil spout time inside the cylinder of the gasoline engine to enable the gasoline engine to be faster into a normal operating work state and obtain optimal startup dynamic property; in addition the method and also greatly enhance the tail gas exhaust quality during the startup.

The embodiment of the invention provides a control method for an engine of a motor vehicle and the engine and relates to the technical field of engines. The control method comprises the steps that a control device obtains a position variable quantity of a pedal; an opening degree is looked up, a reference list is set, and a target opening degree variable quantity of an electronic throttle valve is determined according to the obtained position variable quantity of the pedal; a target air inflow variable quantity of an air cylinder is determined according to the target opening degree variable quantity of the electronic throttle valve. According to the control method for the engine of the motor vehicle and the engine, the setting of the reference list through a preset opening degree, the reference list is directly called in use, the target opening degree variable quantity is directly looked up according to the collected pedal opening degree, so that a series of operations performed in the prior art according to the pedal opening degree variation are avoided, the control process of the engine is simplified, the requirement for hardware is reduced, and therefore the hardware cost is reduced.

A light-emitting module includes: an LED lamp comprising; a flexible board; and a connection member that sandwiches and fixes the LED lamp and the flexible board. An electrode portion of the flexible board is pressed against an external electrode of the LED lamp by the connection member, whereby the external electrode directly contacts and is electrically connected to the electrode portion. A portion of the connection member highest from the substrate is lower than a portion of the sealing body highest from the substrate.

The invention provides a system and method for particulate filter regeneration. Methods and systems are provided for regenerating an exhaust particulate filter based on a projected vehicle drive cycleand catalyst ammonia storage level. In one example, a method may include scheduling a PF regeneration during a regeneration window to maintain a threshold ammonia level in an exhaust catalyst, at theend of the drive cycle.

The invention relates to an eight-stroke engine which consists of a primary air cylinder four-stroke system and a secondary air cylinder four-stroke system. The eight-stroke engine comprises primary and secondary crank shafts (1 and 2), connecting rods (3 and 4), pistons (7 and 8), an assembly of primary and secondary air cylinders (11 and 12), an air suction door (21), air exhaust doors (22 and 26), an assembly of a communication air door (24) and an air breathing door (25), a cooling system and a lubrication system, wherein only the primary air cylinders (11) are provided with ignition and fuel supply assemblies, each primary air cylinder (11) and a corresponding secondary air cylinder (12) are connected and communicated with each other through a communication air passage (23) and form a group, the communication air passage (23) is opened/closed by the communication air door (24) and an electric valve (27) according to set working procedures, and the primary air cylinders (11) and the pistons (7 and 8) in corresponding secondary air cylinders (12) are respectively connected with the primary crank shaft (1) and the secondary crank shaft (2) through the connecting rods (3 and 4). According to the eight-stroke engine, the power and the efficiency of the engine are maximized.

The invention discloses a three-stage filtration system for breeding tail water. The system comprises a filtration chamber, and the interior of the filtration chamber is uniformly provided with filterscreens; a processing chamber is arranged on one side of the filtration chamber, and the interior of the processing chamber is provided with a first rotating shaft; a gas-liquid mixer is connected with the outer side of the processing chamber, and the outer side of the gas-liquid mixer is connected with an ozone tank through a ventilation pipe; and the outer side of the ozone tank is provided with an exposure tank. According to the system provided by the invention, the filtration chamber, the processing chamber and the exposure tank are arranged, the filtration chamber is used to physically filter the breeding tail water through the filter screens to remove a large amount of impurities and dirt doped in the tail water, the filtered tail water is conveyed to the processing chamber througha first water pump, in the processing chamber, ozone is conveyed by the ozone tank to be blended with the tail water to remove a plurality of reducing pollutants in the tail water, then the processedtail water is conveyed to the exposure tank through a second water pump, and an antibacterial wetland and aquatic plants in the exposure tank are used to purify nutrient elements such as nitrogen andphosphorus in the tail water.