231results about How to "Reduce exhaust resistance" patented technology

The invention discloses low-altitude glass. The low-altitude glass is characterized in that upper glass and lower glass are convex; the welding peripheries of the upper glass and the lower glass are respectively provided with an edge sealing strip frame and an edge sealing groove; and the upper and lower glass are welded together by metal or alloy solders in a high-temperature edge sealing furnace, so that the low-altitude glass is simpler and more convenient to manufacture, and a sealing effect is ensured by the embedding combination of the edge sealing strip frame and the edge sealing groove. A manufacturing method of the low-altitude glass provided by the invention is simple in process, low in cost and high in production efficiency, can ensure reliable sealing connection and the good sealing effect, can be used for manufacturing low-altitude glass in mass by virtue of a one-step method, and not only can be used for manufacturing common low-altitude glass, but also is particularly suitable for manufacturing of tempered low-altitude glass; and the low-altitude glass manufactured by the method is high in wind pressure resistance and good in heat insulation and sound insulation.

The invention relates to a preparation method of a honeycomb ceramic net through Lu and N co-doped TiO2 photocatalysis. The honeycomb ceramic net is regarded as a first carrier, and activity AL2O3 coating with specific surface area of 300 to 400m2/g and doping with lanthanum, cerium and iron element is loaded on the first carrier and regarded as a second carrier; the mass ratio of AL2O3 to La to Ce to Fe is (100 to 110) to (90 to 115) to (50 to 70) to (5 to 15); the TiO2 photocatalyst films of rare earth element Lu and non-metallic element N are loaded on the second carrier; the mass ratio of Lu to N to TiO2 in the TiO2 photocatalyst film is (0.01 to 0.16) to (0.40 to 1.88) to (97.94 to 99.54). The removal rate of the honeycomb ceramic net prepared through photocatalysis to formaldehyde and toluene in the air is 98.7% and 92.2% respectively, and the removal rate to formaldehyde and toluene in the air is improved by 2.0 times and 1.9 time respectively compared with the application of the TiO2 photocatalyst film only.

A vehicle having a sufficient length of exhaust pipe and a member disposed above a rear suspension that is not too high. An exhaust pipe is connected to a rearward side of an engine. A rear suspension absorbs shocks generated when a rear wheel moves up and down. A coil-form part of the exhaust pipe is located between the rear suspension and a tire house of the rear wheel, within which the rear wheel moves up and down.

A horizontally installed muffler may include a housing, first and second tail pipes installed to front and rear ends of the housing through the housing, an introduction chamber formed inside the housing and to which an outlet of the exhaust pipe is connected, a first intermediate pipe fluid-connected to the introduction chamber and having a first discharge hole, a discharge chamber fluid-connected to the introduction chamber through the first discharge hole of the first intermediate pipe, wherein each end of the first and second tail pipes and the first discharge hole are disposed inside the discharge chamber, first and second resonance chambers formed inside the housing, a second intermediate pipe fluid-connected to the first and second resonance chambers through the discharge chamber and the introduction chamber and having an introduction hole disposed inside the introduction chamber and a second discharge hole disposed inside the discharge chamber.

Disclosed is a double-rotor rotary compressor which comprises a closed container, an electric machinery part and a compressing machinery part. A cooling medium outlet on a lower cylinder of the compressing machinery part is composed of a radial vent hole which extends outward along the radial direction from an upper end of an inner circumferential wall thereof, a vent groove which protrudes inward from an upper end of the lower cylinder and an axial vent hole which perforates downward from a rear end of the vent groove and whose bottom end is communicated with the rear end of the radial vent hole. The double-rotor rotary compressor changes the exhaust mode of the lower cylinder from downward exhaust mode to upward exhaust mode, thus a vent on a lower bearing is unnecessary to be processed, and a lower muffler can be removed, thereby the amount of parts, processing procedures, leakage of cooling medium and production cost can be reduced, and refrigeration performance of the cooling medium can be improved. In addition, since the cooling medium discharged from the lower cylinder can be directly discharged upward, exhaust resistance is weak, and stroke is comparatively shorter, thereby performance of the compressor can be improved.

An object of the invention is to provide an exhaust emission control device capable of favorably dispersing urea water for improved mixing with exhaust gas even if a flow rate of the exhaust gas is increased. An entry end of a mixing pipe is formed with a first opening at a position near an exit side of a particulate filter and is formed with a second opening at a position away from the exit side of the particulate filter and diametrically opposite to the first opening. Arranged in a downstream end of a gas gathering chamber are a first partition which guides all of the flow of exhaust gas from the particulate filter into a one-way swirling flow around the entry end of the mixing pipe, a second partition which divides the flow of the exhaust gas guided by the first partition into two to cause an inner one of the divided swirling flows to tangentially enter into the first opening and a third partition which causes the remaining outer swirling flow to tangentially enter into the second opening.

The invention provides a safe automatic exhaust manifold welding device and a working method thereof. The safe automatic exhaust manifold welding device comprises a device rack, a single-section welding working table, a welding, carrying and detecting manipulator, a flange slideway, a combined welding working table, a polishing device and a safe protection device, wherein the single-section welding working table can move left and right and turn over for butt weld; an arranged clamping jaw can rotate a weld piece during welding; a clamping and welding device of the welding, carrying and detecting manipulator has welding, carrying and detecting functions; the combined welding working table can be used for combining and butt-jointing various sections of manifolds, and a polishing program canbe automatically started after an exhaust manifold is welded; and the safe protection device comprises a safe protection door and a filter coating. According to the safe automatic exhaust manifold welding device and the working method thereof provided by the invention, through arranging the safe protection device, the occurrence of the phenomenon that personnel enters the working area when the device works so as to cause mechanical injury is effectively prevented, and welding spatter is isolated; and the filter coating is arranged at the same time, so that harmful light rays produced during welding can be filtered, and the personnel can conveniently observe and spot-inspect the device.

The catalyst of the maneuvering two-wheeled vehicle of the invention is arranged and structured on a main frame extended from head towards rear of the vehicle frame and a lower extending frame extended from head tube towards to rear and lower inclination of the vehicle frame, the rear of the lower extending frame is arranged with an engine, the exhaust pipe extended from the engine firstly towards lower, then towards rear is arranged with a metal honeycomb type catalyst; wherein, the front and the back of the metal honeycomb type catalyst of the exhaust pipe forms a first conic section and a second conic section which are gradually expands towards the metal honeycomb type catalyst, the metal honeycomb type catalyst is arranged along the lower extending frame. Thus, while improving the purification efficiency of the metal honeycomb type catalyst, the engine output is improved at the same time, and the cost is reduced.

The invention relates to the technical field of refrigeration compressors, in particular to an exhaust device of a rotary compressor; in the exhaust device of the rotary compressor, a piston channel is arranged on a wall of an air cylinder, the bottom part of the air cylinder is provided with an exhaust port communicated with an air cylinder cavity, the inner end of a piston is tightly close to and blocks the exhaust port under the action of spring thrust; when the compressor exhausts air in the working process, the piston slides outwards in a piston channel, so as to remove blocking to the exhaust port, at the moment, high-pressure air in the air cylinder cavity is exhausted outside a compressing cavity through the exhaust port and an exhaust pipeline; the exhaust device in the inventioncan reduce clearance volume of the compressor in the exhaust process, and the efficiency of the compressor is improved; the mechanical noise generated by repeat beating is avoided when the traditionalcompressor is exhausted; in addition, a plurality of exhaust devices are arranged on the air cylinder wall according to needs, so as to bear the exhaust pressure respectively, reduce the exhaust resistance and reduce energy loss.

Provided is an internal combustion engine for improving fuel-economy performance in any of the case where supercharging performed by an electric supercharger is required and the case where the supercharging is not required. The internal combustion engine includes: an electric supercharger; a supercharger; an electric motor; and a controller, the electric supercharger being for compressing an intake air by rotation of the supercharger caused with rotation of the exhaust turbine by an exhaust gas energy to perform supercharging and for rotationally driving the supercharger with electric-motor assistance by the electric motor; an exhaust bypass passage provided to bypass the exhaust turbine; and an opening and closing the exhaust bypass passage unit. In the internal combustion engine, the opening and closing the exhaust bypass passage unit opens the exhaust bypass passage until the supercharging is started by the electric supercharger.

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).

The tunnel combustion chamber and its constitute of burning coal and organism without smoke and dust relate to boiler, furnace and aerify equipment whose fuel is coal and organism. The tunnel combustion chamber has wide fuel scope. It can carry out the cleanness combustion of the smoke raw coal, the spread coal, the organism, the type coal and the biologic coal. It applies the biologic fuels reasonably and has high thermal efficiency. It realizes the large-scale and mechanical burning. The invention resolves the problem of pollution atmosphere environment by coal burning device. It makes the equipments the cleanness combustion when burning the coals. The small equipment doesn't need air blast and induced air and it can burn. And it doesn't need the ash handling equipment to protect the environment. The invention sends the vapour to the tunnel combustion chamber. It is used to restrain the smoke and translate to the gas fuel. It carries out cleanness combustion when realizes the increase the combustion value of the fuels. It lowers the resources depletion and relief the energy strain. It creates a condition for pushing economy social overall coordination sustained developing.

A fan structure includes a hub and a plurality of blades extending from the periphery of the hub. The airflow generated by the fan forms a boundary layer on the surface of each blade. The present invention is characterized in that: each of the blades is provided with a plurality of polygonal dents, a turbulent flow is generated in each dent when the airflow passes through the dent, a plurality of the turbulent flows collect together to form an air film between the surface of blade and the boundary layer. By this structure, the distance of separating points from the boundary layer is extended, and the frictional force and noise caused by the rotation of the blades are reduced.

The exhaust silencer with variable exhaust pipe cross section of internal combustion engine includes one casing, one air inlet silencing pipe and one exhaust silencing pipe inside the casing cavity, three partition boards set inside the cavity to separate the cavity into four chambers and one intermediate silencing pipe. The air inlet silencing pipe has its closed end penetrating the front end cap, the first partition board and two chambers and combining with the second partition board. The exhaust silencing pipe includes two pipes of different lengths and sizes, their closed ends penetrate the back end cap and the last chamber and combine with the third partition board, and the large and short pipe has one exhaust control valve in the opened end. The intermediate silencing pipe has its opened end located inside the second chamber and the closed end inside the third chamber.

An exhaust gas purifying apparatus includes an exhaust pipe 2a for forming an exhaust way 2, and a catalyst disposed in the exhaust way 2 for purifying an exhaust gas. The catalyst includes the first honeycomb catalyst portion 3a and the second honeycomb catalyst portion 4a. The first honeycomb catalyst portion 3a has an outer circumferrencial surface for forming a blowing passage 200 with an inner circumferrencial surface of the exhaust pipe 2a. The radial cross sectional area in the catalyst region of the first honeycomb catalyst portion 3a is set in the 1/5–2/3 range with respect to the radial cross sectional area of a flowing way defined by the inwall surface of the first mounting position 3a placed in the exhaust way 2, with the first honeycomb catalyst portion 3a being removed.

To provide an exhaust device for a motorcycle for suppressing an exhaust resistance due to the thickness of an exhaust control valve. An exhaust device for a motorcycle is provided for an engine having a plurality of cylinders. A plurality of upstream exhaust pipes are respectively connected to exhaust ports for the cylinders with an exhaust control valve provided in the downstream exhaust pipe. A separator is provided in the exhaust manifold portion for separating the flows of exhaust gas. The exhaust control valve is located on the downstream side of the separator so that a main surface of the exhaust control valve in its fully open condition becomes substantially parallel to a main surface of the separator.

The invention provides environment-friendly exhaust manifold automatic welding equipment and a work method thereof. The automatic welding equipment comprises an equipment rack, single-segment weldingworktables, a welding carrying detection mechanical arm, a flange sliding way, a combined welding worktable, a polishing device and a welding fume treatment device; the single-segment welding worktables can move and turn over abut-joint welding lines left and right, a clamping jaw can rotate a welding part during welding, a clamping welding device of the welding carrying detection mechanical arm has welding, carrying and detection functions, the combined welding worktable enables all segments of manifolds to be combined and in abut joint, after an exhaust main pipe is welded, the polishing program can be automatically started, and the welding fume treatment device is arranged on the top of the equipment, and can be automatically moved to the position above the welding part to extract welding fume. The welding treatment device is arranged, the welding fume generated by welding can be automatically collected and treated and then exhausted, harmful gas in a welding workshop can be effectively reduced, and the equipment can quite meet the modern environment-friendly production needs.

The invention relates to an explosion-proof electrically controlled EGR system for a mine. The EGR system comprises an EGR cooler, an intake and exhaust manifold, an EGR mixing device and an explosion-proof EGR valve, wherein an EGR intake pipe and an EGR exhaust pipe are arranged at the two ends of the EGR cooler respectively; the EGR intake pipe is connected with an exhaust port of the intake and exhaust manifold; the EGR cooler is provided with a water inlet and a water outlet; a waste gas intake port of the EGR mixing device is connected with the EGR exhaust pipe; a mixing gas outlet port of the EGR mixing device is connected with a gas intake port of the intake and exhaust manifold; an explosion-proof EGR valve is connected with the EGR mixing device; the EGR valve is connected with an EGR control unit by a harness; the opening and closing of the explosion-proof EGR valve is controlled by an ECU to control the flow amount of the EGR waste gas; and the EGR control unit is arranged in an explosion-proof electrical control device. The EGR system has good explosion-proof effects, so that the EGR system can be used under the mine, and the exhaust of NOx of an explosion-proof diesel engine can be effectively reduced.

The invention provides a rotary type compressor capable of being turbocharged. The rotary type compressor comprises a closed shell, a gas-liquid separator, an exhausting pipe and a turbocharging mechanism, wherein the closed shell is internally provided with a motor assembly and a compression pump body assembly; the gas-liquid separator is communicated with a compression pump body by an air inlet elbow; the exhausting pipe is arranged at the upper end of the closed shell; the motor assembly comprises a stator and a rotor; a rotary shaft of the compressor is driven by the rotor; the compression pump body assembly comprises an upper flange, an air cylinder, a lower flange and a roller, which are mounted along the rotary shaft of the compressor in sequence; the turbocharging mechanism comprises a first transmission rod, a first transmission gear, a second transmission rod, a second transmission gear and a turbine fan blade; the first transmission rod and the rotor rotate synchronously; the first transmission gear is arranged on the first transmission rod; the second transmission rod is arranged in the closed shell by a bearing assembly; the second transmission gear and the turbine fan blade are arranged on the second transmission rod; the turbine fan blade is arranged at the air inlet end of the exhausting pipe; the first transmission gear and the second transmission gear are engaged with each other; the first transmission rod and the second transmission rod are arranged orthogonally. According to the rotary type compressor capable of being turbocharged, the flowing speed of a cold medium in circulating unit time is increased, the exhausting resistance is reduced and the performance of the compressor is improved.

The invention provides new automatic welding equipment for an exhaust manifold and a working method of the new automatic welding equipment. The new automatic welding equipment comprises equipment racks, single-section welding worktables, a multifunctional manipulator, a flange slideway, a combined welding worktable and a polishing device; the single-section welding worktables can move butt weld leftwards and rightwards and overturn the butt weld, a weldment can be rotated through arranged clamping claws during welding, all sections of manifolds can be combined and butted together through the combined welding worktable, and after an exhaust main pipe is welded, polishing can be automatically conducted; and the multifunctional manipulator is provided with an automatic clamping structure, andworking heads can be automatically replaced and clamped through the automatic clamping mechanism. According to the new automatic welding equipment for the exhaust manifold and the working method of the new automatic welding equipment, segmented welding is conducted first, then overall welding is conducted, polishing is conducted after welding, the working heads of the equipment can be automatically replaced, thus the functions of welding, carrying, detecting and stress removing are achieved, and the new automatic welding equipment is quite suitable for welding of the exhaust manifold.