409results about How to "Improve air intake efficiency" patented technology

The invention discloses a thermal management system of a hybrid power heavy truck and a control method. According to the thermal management system, components with different thermal demands are integrated in different cooling subsystems respectively, and the thermal management system can be divided into a high-temperature-level cooling system, a low-temperature-level cooling system and an air conditioner cooling system, wherein the high-temperature-level cooling system comprises an engine water circulation cooling device and an engine oil circulation cooling device, the low-temperature-level cooling system comprises a power battery and a motor, and the air conditioner cooling system is provided with a double-drive air conditioner compressor. The provided thermal management system of the heavy truck provides a control method for vehicle warming, driving and post-cooling and can achieve distribution of heat dissipation amount of each component under various working conditions as required, reasonably utilize waste heat and reduce the energy consumption of accessories of the thermal management system, so that the cost-effectiveness of a whole vehicle is improved.

The invention discloses a novel supercritical carbon dioxide coal-fired boiler. The novel supercritical carbon dioxide coal-fired boiler comprises a horizontally arranged hearth, a wall-attached radiation cooling heating surface system, a superheater and reheater system, smoke gas coolers and air preheaters, wherein the wall-attached radiation cooling heating surface system is arranged in the hearth in a graded and segmented mode, the superheater and reheater system is arranged in a horizontal flue in a graded mode, and the smoke gas coolers and the air preheaters are arranged in a tail flue in a graded and flow-dividing mode. The wall-attached radiation cooling heating surface system greatly reduces the length of a high-temperature working medium pipeline, and reduces the number of needed high-temperature convection heating surfaces and high-temperature alloy pipelines, thereby reducing fixed investment of equipment. The superheater and reheater system combines with turbines which are arranged in a multi-stage and multi-axis mode, so the air inlet temperature and the turbine efficiency of the turbine of each grade can be improved. The tail flue comprises an upper-grade smoke gas coal economizer and a lower-grade smoke gas coal economizer which are used for heating a new working medium to meet requirements of an inlet of a primary wall-attached radiation cooling heating surface of the boiler, and the upper-grade air preheater and the lower-grade air preheater are used for heating combustion air, so that the special requirements for hearth combustion and heat transfer of the supercritical working medium circulation are met.

A backpack blower comprising a blower which has an air intake opening, a backpack frame which is used to support the blower on the back of a user, and a back pad that is coupled to the backpack frame and contacts the back of the user. The back pad is composed of a cushion material and has a back surface contacting the back of the user and an opposite surface. The air intake opening communicates with at least a portion of the opposite surface, so that the air intake noise of the blower can reach at least the portion of the opposite surface.

The invention aims at providing a multi-mode large and small turbocharger diesel engine sequential supercharging structure which comprises a small supercharger and a large supercharger, wherein a turbine of the small supercharger is communicated with an exhaust port of a diesel engine through an A row exhaust pipe, a turbine of the large supercharger is communicated with the exhaust port of the diesel engine through a B row exhaust pipe, a gas compressor of the small supercharger is communicated with an intercooler through an A row inlet pipe, a gas compressor of the large supercharger is communicated with the intercooler through a B row inlet pipe, the A row exhaust pipe and the B row exhaust pipe are communicated through an exhaust communication pipe, a first gas valve is arranged between the joint of the exhaust communication pipe and the A row exhaust pipe and the turbine of the small supercharger, a second gas valve is arranged between the joint of the exhaust communication pipe and the B row exhaust pipe and the turbine of the large supercharger, a first air valve is arranged on the A row inlet pipe, and a second air valve is arranged on the B row inlet pipe. The multi-mode large and small turbocharger diesel engine sequential supercharging structure enables the diesel engine to be switched into a non-supercharging mode at idle speed, and improves air inlet efficiency at the idle speed.

The invention discloses a shell assembly of a range hood and the range hood. The range hood comprises a shell, a partition and a fan assembly, wherein an opening is formed in the front side of the shell; the partition is arranged in the shell, and divides the inside of the shell into a front side cavity and a rear side cavity which are arrayed in the front-to-back direction; a main air inlet is formed in the partition; at least one of the partition and the shell defines an auxiliary air inlet; the auxiliary air inlet is close to the edge of the partition; the air feeding end opening of the fan assembly is formed at the main air inlet and is communicated with the front side cavity; an auxiliary air opening is formed in the fan assembly; the main air inlet and the air feeding end opening define a main air duct; the auxiliary air opening and the auxiliary air inlet define an auxiliary air duct. According to the range hood disclosed by the invention, the shell assembly and the fan assembly are used for defining the main air duct and the auxiliary air duct, so that the lampblack catching capacity of the range hood can be improved, the air feeding efficiency is improved, and the air volume and the air pressure are increased; therefore, the lampblack absorption effect of the range hood can be enhanced.

An intake system for a combustion engine includes an intake passage (12), a suction duct (22) protruding into the intake passage (12) to communicate therewith and having front and rear wall areas (22a and 22b), and a fuel injector (21) positioned upstream of the intake duct (22) for injecting fuel (F) into the suction duct (22). The rear wall area (22b) has a height greater than that of the front wall area (22a).

A cooling air intake structure of a desk-top computer having a housing containing a mother board with a processor, includes one of a passage frame extending from one side to the other side of the housing, defining a passage penetrating through the housing and having a predetermining cross-sectional area, and a recess portion, on each of the sides of the housing, having a predetermined cross-sectional area. The passage frame and the recess portion have a plurality of air intake vents in the wall thereof.

The invention relates to an improved electronic throttle body, belonging to throttle assemblies of automobile engine air intake systems. A crankcase vent pipe, a carbon tank pipe and a pressurizing pipe are integrated on a throttle main body, so that an engine achieves the lowest emission, and the best dynamic property and the best fuel economy of a vehicle can be ensured. A main body is provided with a high and low idle speed limit mechanism which mainly comprises a throttle shaft, a sector gear, a reset torsional spring, a torsional spring and two limit stops on the main body. When a DC motor fails and can not operate normally, a throttle valve plate always stays in a high idle speed position state under the action of the two torsional springs, and the safety of the engine system is improved; the throttle valve plate is installed on the throttle shaft through self-locking screws, and the possibility of deforming the throttle shaft by the traditional reverse riveting screw is reduced. An O-ring is installed on an air inlet of the main body, so that the air tightness of connection between the main body and an air guide pipe of an air filter is improved.

A water-jet propulsion personal watercraft is disclosed, including a multiple-cylinder engine mounted in a body of the watercraft and configured to drive a water jet pump configured to propel the watercraft, and a mechanically driven supercharger configured to supply air taken in from outside to the engine. The engine typically has air-intake ports configured to open toward one side relative to the engine and exhaust ports configured to open toward an opposite side relative to the engine. The supercharger is typically disposed on the one side relative to the engine.

An intake system of a vehicle, includes an air cleaner case, an air filter that is arranged inside the air cleaner case and positively charged, and a self discharge type static eliminator that decreases an amount of electrification charge on a wall surface of the air cleaner case within a limited range about a location where the self discharge type static eliminator is installed, when the self discharge type static eliminator is installed on the wall surface of the air cleaner case. An peripheral edge part of the air filter is held by an air filter holding part of the air cleaner case. The self discharge type static eliminator is installed on an outer wall surface of the air filter holding part of the air cleaner case.

Aiming at providing a straddle-type all terrain vehicle effectively improved in the operational stability of vehicle and engine performance, power transmissions transmitting driving force of a power unit to a rear axle shaft, and braking devices exerting braking force to rear wheels are provided respectively at both side of an end of a rear swing arm in the vehicle width direction, and an exhaust silencer is disposed in a space between the power transmissions and the braking devices, below a seat.

The present invention discloses piston bodies construct improvement of air compressor, especially is a construct improvement design on top spring of piston body. On top of valve head of piston body has a reed which has an arc inner gap. The reed has two parts of outer ring section and inner disc. Gas pushes reed upward to come out from gap. Both outer ring section and inner disc are bending by applying force, so reed is easy bending and difficult to generate localized stress concentrated phenomenon forming crease mark at bending part. Reed has two locating hole, screw for fixing reed on valve head by bolt, and induction trunk for covering valve head with reed. A stop groove is placed on other head of reed. Stop blocks on valve head cross the stop groove. When piston body acts in air cylinder, reed has switching action to control gas in and out with the action of piston body. Because stop blocks can connect with stop groove to restrict swing of reed, produce of noise can be reduced. The construct of the design is a durable and quiet piston body construct with higher air inlet efficiency.

The present invention provides a straddle type vehicle. A pedal type motorcycle in which an electronic throttle control device is adopted can cause a vehicle seat to be positioned at a lower position. The straddle type vehicle is provided with the following components: an engine (20) which extends in a front-and-back direction of the vehicle; an air filter (5); the vehicle base (91) which is provided above the engine for seating; a glove compartment (92) which is provided below the vehicle seat; an air inlet channel (30) which is provided below the glove compartment for connecting the air filter with an air inlet (221); a throttle (43) which is provided on the air inlet channel; a throttle motor (50) which opens and closes the throttle; a motor driver (55) which drives the throttle motor;and a control device (80) which controls the operation state of the throttle motor according to the operation amount of an operation mechanism. When the vehicle is observed from the side surface of the vehicle, the throttle motor (50) is provided above the air inlet channel and is provided between the air inlet channel and the glove compartment. A base plate part (92a) of the compartment box is provided with an inwards dented part (92b) which is provided at a position that corresponds to the throttle motor and projects upwards.

The invention discloses an air filter, which consists of an air inlet pipe, an air inlet pipe of an engine, a filter element, an upper shell and a lower shell of the air filter. The upper shell and the lower shell of the air filter are abutted to form a shell of the air filter, and the filter element is fixed at the abutted part of the upper shell and the lower shell of the air filter, wherein an open pore of the upper shell of the air filter is communicated with the air inlet pipe of the engine, and an open pore of the lower shell of the air filter is communicated with the air inlet pipe. The air filter is characterized in that the abutted surface of the upper shell and the lower shell of the air filter is an inclined plane, the included angle of the abutted surface and the horizontal plane is alpha, and the side wall of the upper shell of the air filter is vertical to the abutted surface. The air filter has the advantages that the air filter can avoid blockage of a bent upper part on the side wall of a vehicle body, is favorable for assembly and disassembly of the upper shell of the air filter, so as to replace the filter element conveniently; at the same time, the air filter improves filter area of the filter element, reduces air resistance in the air filter, improves air inlet efficiency, prolongs the service life of the filter element, and prolongs the replacement time of the filter element.

The invention discloses an energy-saving supercharging device of an automobile air compressor. The device comprises an air filter, a turbine supercharger, an air compressor and an air storage tank, wherein the air compressor is communicated with an air inlet cavity of an engine through an air inlet and communicated with the air storage tank through an exhaust port; the air inlet of the air compressor is provided with an energy-saving reversing valve which is connected with the air filter and the turbine supercharger respectively; and an unloading valve with a pressure feedback signal is arranged between the exhaust port of the air compressor and the air storage tank. Under the action of the energy-saving reversing valve, when the air compressor is no-load, the air enters the air compressor through a natural air inlet pipeline so that the air exhausted to the atmosphere does not consume the supercharged gas of the engine and the heat load of the air compressor is reduced; and when in full-load work, the compressed air from a braking pressure control air port pushes a power piston to move rightwards, then the natural air inlet is closed, a supercharged air inlet is connected, and the air compressor takes air from the turbine supercharger so as to improve the air inlet efficiency of the air compressor.

The invention provides a movable multifunctional activated carbon waste gas treatment box, comprising box doors, a treatment box body, an impurity filtering screen, a gas inlet pipe, fan blades, a drive motor, a U-shaped hanging board, a sliding rail, a gas outlet pipe, an activated carbon waste gas treatment filter screen structure, a adjusting bolt, a portable lifting rope structure, a waste gastreatment sterilizing lamp structure, a waste gas emission detection rod structure and an adjustable lifting type moving wheel, wherein the box doors are respectively connected with the left part andthe right part of the front surface of the treatment box body by means of hinges; an anisotropic magnet piece is arranged in the middle of the position between the box doors. The movable multifunctional activated carbon waste gas treatment box is provided with waste gas treatment nets, absorption boards, absorbing wool and impurity absorbing sponge pieces, thus being beneficial to improvement ofwaste gas treatment effect, enabling waste gas treatment to more easily reach the standard, and realizing the absorption of impurities and fine particles in waste gas; a U-shaped sliding block, the sliding rail and the adjusting bolt are arranged, so that the position of the activated carbon waste gas treatment filter screen structure can be easily adjusted according to the waste gas treatment demand, a certain spacing is reserved, the treatment effect is further guaranteed.

The invention relates to an engine cooling system. The engine cooling system comprises a high-temperature circulation cooling system and a low-temperature circulation cooling system. The high-temperature circulation cooling system is provided with a large cycle cooling liquid flow path, a small cycle cooling liquid flow path and a delay cycle cooling liquid flow path. In the large cycle and the small cycle, cooling liquid passes through a cylinder cover water jacket and then is diverted, one part of cooling liquid enters a cylinder water jacket, and the other part of cooling liquid enters warm air. Independent expansion water tanks are adopted in the high-temperature circulation cooling system and the low-temperature circulation cooling system. An electric control auxiliary water pump is additionally arranged for the high-temperature circulation cooling system, the delayed cycle is achieved, the cooling liquid is diverted into the cylinder water jacket and the warm air after passing through the cylinder cover water jacket, and the engine cooling system can better meet the heat supply requirement of various components after engine shutdown. The problem about the flowing direction of cooling circulation between different components is solved, and the engine knock probability can be reduced by arranging the independent expansion water tanks.

The invention provides a micro cyclone separator with a double-side air inlet function and a high-pressure separation device adopting the separator. The micro cyclone separator with the double-side air inlet function comprises an inner pipe and an outer pipe. An air outlet of the cyclone separator is formed in the top of the inner pipe. Part of the lower portion of the inner pipe enters the upper portion of the outer pipe. The top of the outer pipe is connected with the outer wall of the inner pipe in a sealing mode. The micro cyclone separator is characterized in that two air inlets communicating with the interior of the outer pipe are formed in the top of the outer wall of the outer pipe, and the two air inlets extend in the tangential direction of the outer wall of the outer pipe correspondingly and are distributed in a central symmetry mode. By means of the double-side air inlets which are distributed in the tangential direction in the central symmetry mode, the air inlet area is effectively increased, the air inlet efficiency is improved, the medium treating capacity is improved, the pressure drop is reduced, and the separation efficiency is improved.

The invention provides an extend range type electric passenger vehicle with an engine arranged at the front position. The extend range type electric passenger vehicle comprises the turbine shaft engine (2), a battery pack (3), an electric generator (4), a drive motor (6), a storage tank (9) and a split type heat regenerator (12). The extend range type electric passenger vehicle is characterized in that the turbine shaft engine (2) is arranged and installed on an automobile frame above a front axle; the axis of an output shaft of the turbine shaft engine (2) is located on a symmetry plane of an automobile body; the split type heat regenerator (12) is located below the turbine shaft engine (2); and exhaust gas exhausted out of the turbine shaft engine (2) is adopted by the split type heat regenerator (12) for preheating inflow gas of the turbine shaft engine (2). By the adoption of the extend range type electric passenger vehicle, a gas turbine is adopted as a power source and arranged at the position on the symmetry center line above the automobile front axle, an output shaft of the gas turbine is longitudinally arranged, and the extend range type electric passenger vehicle has the beneficial effects that the energy conversion efficiency is high, a front wheel, a rear wheel, a left wheel and a right wheel bear weight in a balanced manner, the operation performance is good, and the running mileage is large.

The invention discloses a multi-layer variable geometric volute device, which comprises a turbine volute. A volute air inlet passage and a non-blade nozzle are arranged in the turbine volute, and a volute air inlet communicated with the volute air inlet passage is arranged on the turbine volute. A first pneumatic partition plate is arranged in the volute air inlet passage and partitions the volute air inlet passage into a volute air inlet inner passage and a volute air inlet outer passage. A second pneumatic partition plate is arranged in the volute air inlet outer passage and partitions the volute air inlet outer passage into a first branch passage and a second branch passage. The volute air inlet inner passage is a normally-opened air inlet passage. An air inlet adjustment valve for controlling the opening or the closing of the first branch passage and the second branch passage is arranged in the volute air inlet passage close to the volute air inlet. The air inlet adjustment valve can guide the air flow flowing into the volute air inlet inner passage simultaneously when the air inlet adjusting valve is opened or closed. The air inlet adjustment device is simple in structure, the control mode can be easily implemented, and the reliability is high.

Methods are provided for operating an engine with a variable fuel blend in a cylinder, where the variable fuel blend varies a peak achievable engine torque for a given operating condition. One example method comprises selectively operating an engine actuator that affects engine torque and engine fuel economy at the given operating condition, and extending operation of the actuator to higher engine torques as a peak engine torque for the given operating condition increases.

The utility model relates to a tricycle, which effectively arranges and supports various functional parts of the rear body, makes the rear body further compact and miniaturized, and is environmentally friendly at the same time. The rear car body (18) is connected with the rear portion of the front car body, and the rear car body is connected so that it can swing freely relative to the front car body, and the rear car body (18) is covered by an integral casing (53) , the engine (76), the rear wheels (16, 16) driven by the engine (76), and the exhaust system (52) of the engine (76) are arranged in the casing (53). The cylinder part (93) of the engine (76) is arranged in the casing (53) inclined forward. In the exhaust system (52), a catalyst pipe (107) and a muffler (111) for purifying exhaust gas are arranged, and a fuel injection valve (91) and a throttle body (107) for supplying fuel to the engine (76) are arranged. Arranged in the casing (53).