What is GPF? Automobile GPF refers to gasoline engine particle filter. GPF is a ceramic filter installed in the exhaust system of a gasoline engine. The shape is a cylinder, which is no different from the shape of traditional "three-way catalyst". The difference is the internal air flow channel. GPF is a wall-flow carrier. The inside of the carrier is parallel honeycomb pores. Only one of the adjacent two pores has an inlet open, and the other has only an outlet open. It can capture particulate emissions before they enter the atmosphere. The main function is to reduce particles, and through ECU control, the particles in the trap are oxidized and burned to achieve the purpose of regeneration. GPF working mechanism The filtering mechanism of GPF is basically the same as that of diesel engine DPF. Exhaust gas passes through the porous wall at a certain flow rate. This process is called "Wall-Flow”. The wall-flow particulate filter is composed of honeycomb ceramics with a certain pore density. By alternately blocking the honeycomb porous ceramic filter, the exhaust flow is forced to pass through the pore wall and the particles is captured and filtered through the four methods of diffusion, interception, gravity and inertia. GPF layout plan GPF is mainly arranged on the exhaust pipe of gasoline engine in three forms. One is integrated with TWC and installed closer to the exhaust manifold, that is a closed-coupled arrangement. The other is directly installed at the downstream position of the TWC, that is under-floor. And the other is the three-way catalyst coated on the GPF substrate to form a "four-way catalyst”. GPF regeneration After the particulate filter is used for a long time, soot particles accumulate on the microporous surface of the filter to form a PM layer and its storage volume will gradually decrease. The formation of the PM layer helps to improve the filtration efficiency, but there will be a throttling effect in the exhaust pipe, and the exhaust flow resistance becomes larger, which leads to an increase in fuel consumption and a decrease in engine output. At this time, it is necessary to replace or regenerate the GPF. Since GPF collects particulate matter temporarily, it cannot be removed during daily short-distance driving. After a period of driving, the accumulated particulate matter in GPF gradually increases, causing the engine exhaust back pressure to rise and engine performance to decrease. To a certain extent, problems such as "acceleration weakness, fuel consumption soaring, automatic start-stop failure" and other problems occur, so it is necessary to regularly remove GPF particulate matter to restore exhaust back pressure. Generally speaking, particulate matter is carbon, which can be converted into carbon dioxide by directly reacting with oxygen at high temperature. According to the instructions, when the GPF regeneration indicator light is on (green light), it indicates that PM has accumulated to a certain degree, and GPF nee...

In the face of motorcycle emission standards becomes strict and relevant state regulations promulgated, motorcycle exhaust gas purification is one of the main ways to meet emissions, so the motorcycle catalyst carrier requirements: high mechanical strength, high melting point, low thermal expansion coefficient, good heat conduction performance and low pressure drop. Compared with traditional substrate, metallic substrate due to its physical properties and show some unique properties: the thickness of metallic substrate's wall can be thin to 0.04mm, the effective cross section is greatly increased, thereby reducing the exhaust back pressure, helps to reduce the engine power consumption; metallic substrate having large geometric surface area, to acquire the same purification performance under the same conditions that can save the consumption of noble metal; the good thermal conductivity and low thermal capacity of metal carrier contributes to the catalyst fast light-off, but will be able to timely catalytic combustion generated heat to avoid overheating of the metal carrier; ductility is good, strong shock resistance, not brittle, with more durable mechanical life. Technical Advantage 1.With Precious Metal coating technologies, we provide solutions with optimized precious metals while achieving higher catalytic performance 2. enhance higher oxygen storage capacity(OSC) and stability by applying Precious Metals-Rare Earth compound catalytic technology 3. Obtaining Metal substrate oxidation transitional layer technology meet the requirement of uniformity and stability 4. Offer targeted solutions for different customers , achieve Euro III, IV, V emission standard.

1.Cars equipped with three-way catalytic converters cannot use leaded gasoline, because after leaded oil is burned, lead particles will cover the surface of the catalyst when they are discharged through the three-way catalytic converter with the exhaust gas, reducing the area of action of the catalyst, thereby greatly reducing the catalysis The conversion efficiency of the three-way catalytic converter leads to lead poisoning. 2.Avoid the unburned mixture from entering the catalyst. The temperature at which the three-way catalytic converter starts to work is about 200 ℃, and the best working temperature is between 400 ℃ and 800 ℃。However, the precious metal components used as catalyst will also have chemical changes in themselves after the temperature exceeds 1000 ℃，which will reduce the effective catalyst composition in the catalyst and weaken the catalytic effect. Therefore, the following situations should be excluded during the use of the vehicle: First, idle for too long; Second, the ignition time is too late; Third, individual cylinders are on fire and do not work; Fourth, it is difficult to start; Fifth, the mixture is too thick; Sixth, the engine burns oil and seventh, the oxygen sensor fails; Eighth, the water temperature is too high due to poor heat dissipation. 3.When driving on uneven roads, you should pay special attention not to "support the bottom", because most of the three-way catalytic converter is a catalyst carrier formed by honeycomb pottery, which is easily broken after a collision, causing the catalytic converter to fail and the exhaust pipe to block. 4.In the event of abnormal working conditions, such as flashback or repetitive stalls, stop and check in time, because these conditions can cause permanent damage to the catalytic converter. 5.Do not turn off the ignition switch of a moving vehicle. 6.Do a good job of checking the three-way catalytic converter during vehicle maintenance. The inspection content includes: whether there is abnormal noise in the exhaust pipe, which is usually caused by the loosening of the exhaust pipe joint, the damage of the three-way catalyst, the loosening of the catalyst replacement plug, etc.; whether the exhaust pipe is cracked or the shell is flattened, etc. The appearance of the engine is damaged; whether there are catalyst particles discharged from the exhaust tail pipe. If the shell of the three-way catalytic converter is damaged or the exhaust tail pipe emits particles, it needs to be replaced.

Metal and ceramic catalysts are based on metals: alloyed Iron soldering aluminium. Ceramics: Cordierite is the main raw material. It is a metal and ceramic honeycomb carrier processed through a special process. It is made of unique coating materials with precious metals platinum and palladium as active components. It has high catalytic activity and good heat Stability, long service life, small thermal expansion coefficient, good bonding strength, good airflow impact resistance, high strength, etc. It is widely used in organic waste gas treatment in chemical, paint, enameled wire, spraying, oven and other industries. ceramic honeycomb catalytic converter Technical Data: Ceramic Material Cordierite Size 50x50x50mm,100x100x50mm, 595x260x95mm(Customizable) Working  Temperature 220°C - 1100°C Shape Square, Rectangular, Round (Customizable) ell Density 50-400CPSI    (Customizable) Type Catalyst Application Enameled wire, paint room, waste gas treatment industry metallic substrate catalytic converter Technical Data: Metal Material Shell:441,444 Inner: Iron soldering aluminium 216 Size 50x50x50mm,100x100x50mm, 595x260x95mm(Customizable) Working  Temperature 220°C - 1100°C Shape Square, Rectangular, Round (Customizable) Cell Density 50-400CPSI         (Customizable) Type Catalyst Applicatio Enameled wire, paint room, waste gas treatment industry

The three-way catalytic converter is the most important external purification device installed in the car exhaust system. It can convert harmful gases such as CO, HC and NOx from car exhaust into harmless carbon dioxide, water and carbon dioxide through oxidation and reduction. When the high-temperature automobile exhaust passes through the purification device, the purification agent in the three-way catalyst will enhance the activity of the three gases CO, HC and NOx, and promote certain oxidation-reduction chemical reactions. Among them, the CO is oxidized at high temperature to become non-toxic. Color, non-toxic carbon dioxide gas; HC compounds are oxidized to water (H20) and carbon dioxide at high temperature; NOx is reduced to nitrogen and oxygen. Three kinds of harmful gases become harmless gases, so that car exhaust can be purified. Because this kind of catalyst can simultaneously convert the three main harmful substances in the exhaust gas into harmless substances, it is called catalytic converter universal The three way catalyst converter reactor is similar to a muffler. Its outer surface is made of double-layer stainless steel sheet into a cylindrical shape. Insulation material-asbestos fiber felt is installed in the double-layer sheet sandwich. Inside, there is a purifying agent in the middle of the mesh partition. The purifying agent is composed of a carrier and a catalyst. The carrier is generally made of aluminum oxide, and its shapes are spherical, polygonal, and net-shaped partitions. Purifiers actually play a catalytic role and are also called catalysts. The catalytic convertors used metal platinum, rhodium and palladium. Spraying one of them on the carrier constitutes a cleaning agent.