DOC Series (Sizes Can Be Customized)

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Fukang-DOC Component

Fukang-DOC Component

The Fokang-DOC component is the core element of the Fokang series diesel engine exhaust aftertreatment system, playing a crucial role in the following ways: At its core, the Fokang-DOC component serves as a key link in purifying exhaust gases from China VI diesel engines by facilitating catalytic oxidation, temperature regulation, and NOx conversion. Its synergistic operation with the DPF and SCR systems not only meets stringent emission standards but also helps reduce operational costs through optimized regeneration strategies. For users, ensuring the long-term, efficient performance of the DOC requires using low-sulfur fuel correctly and regularly inspecting the aftertreatment system. Additionally, the DOC component supports NO-to-NO₂ conversion, complementing the application scenarios of SCR systems. The Fokang-DOC component is widely employed in diesel engines designed to comply with rigorous emission standards such as China VI and Euro VI, including models like the Fokang 2.8F135B and the 3.8 Hongxing. These engines utilize an advanced "DOC + DPF + SCR + ASC" aftertreatment technology chain, enabling coordinated control of particulate matter (PM), nitrogen oxides (NOx), carbon monoxide (CO), and hydrocarbons (HC). In commercial vehicles, such as heavy-duty trucks from brands like Ouman, the DOC works seamlessly with DPF and SCR systems to ensure that exhaust emissions meet regulatory standards during long-haul transportation. For non-road machinery applications—such as the Fokang X12 construction engine—the DOC combined with DPF forms an effective aftertreatment solution tailored to the emission requirements of off-road mobile equipment.
Sharp Power - DOC Component

Sharp Power - DOC Component

The DOC (Diesel Oxidation Catalyst) component catalytic muffler is the core component of diesel vehicle exhaust treatment systems. Its functions, applications, and uses are as follows: **Primary Functions:** - By utilizing an internally coated catalyst—such as vanadium pentoxide (V₂O₅)—the DOC converts harmful pollutants in diesel exhaust, including carbon monoxide (CO), hydrocarbons (HC), and nitrogen oxides (NOx), into harmless substances like carbon dioxide (CO₂), nitrogen gas (N₂), and water (H₂O). - Combined with the muffler’s structural design—featuring components like porous tubes, baffles, and expansion chambers—the DOC reduces exhaust noise through sound wave reflection, interference, and energy absorption by acoustic materials such as glass fiber, thereby enhancing driving comfort. **Primary Applications:** - Designed to meet China IV emission standards and beyond, the DOC significantly lowers pollutant levels in diesel vehicle exhaust, helping vehicles pass environmental inspections with ease. - It optimizes exhaust backpressure, minimizing engine power loss. - By purifying exhaust gases, the DOC also mitigates the corrosive effects of high-temperature, harmful emissions on both the engine and exhaust system, ultimately extending the lifespan of critical components. **Application Scenarios:** - **Heavy-duty trucks and buses:** Ideal for handling high-volume exhaust emissions while meeting stringent environmental requirements for long-haul transportation. - **Light commercial vehicles:** Such as urban logistics trucks, where balancing performance with compliance to emission regulations is crucial. - **Non-road machinery:** Including construction equipment and agricultural machines, designed to tackle challenging operating conditions and ensure effective exhaust treatment. **Technical Advantages:** - Employs a cocoon-shaped cordierite honeycomb ceramic substrate, dramatically increasing the catalyst’s surface area and boosting reaction efficiency. - Features a dual-catalyst design—such as an SCR system—to achieve staged purification, ensuring superior NOx conversion rates. - The urea injection system works synergistically with a gas-liquid mixer, enabling uniform dispersion of ammonia throughout the exhaust stream, thereby enhancing SCR reaction efficiency. - Integrates catalytic and muffling functions into a single compact unit, making it easier to install even in vehicles with limited space.
DOC Component - Carrier 266 x 102

DOC Component - Carrier 266 x 102

DOC Component – Carrier 266102 Muffler refers to a component that integrates the DOC (Diesel Oxidation Catalyst) with a muffler, featuring a carrier dimension of 266 x 102. Key application areas include: - **Automotive Exhaust Treatment:** The DOC component effectively oxidizes harmful substances such as carbon monoxide (CO) and hydrocarbons (HC) in diesel engine exhaust, converting them into harmless carbon dioxide (CO₂) and water (H₂O). Meanwhile, the muffler helps reduce exhaust noise. This muffler, with its 266 x 102 carrier size, is suitable for various types of vehicles—particularly passenger cars and light commercial vehicles where stringent emissions and noise control standards are required. - **Non-Road Mobile Machinery:** Equipment like excavators, loaders, bulldozers, and other construction machinery, as well as agricultural machines such as tractors and combine harvesters, generate both exhaust emissions and significant noise. The DOC component–carrier 266x102 muffler can be installed in the exhaust systems of these machines, delivering dual functionality by purifying exhaust gases and minimizing noise pollution. - **Generator Sets:** Whether used in industrial production, commercial settings, or as emergency backup power sources, diesel generator sets must manage both their exhaust emissions and operational noise. This muffler effectively reduces noise pollution during generator operation, while the DOC’s catalytic action further lowers pollutant emissions, ensuring compliance with environmental regulations.
DOC Component - YM41D1 Muffler

DOC Component - YM41D1 Muffler

The DOC component—YM41D1 catalytic muffler—serves the following purposes, has specific uses, and finds applications as follows: - **Function**: By employing catalytic oxidation, it reduces emissions of carbon monoxide (CO), hydrocarbons (HC), and soluble organic fractions (SOF) from diesel engine exhaust. At the same time, its unique structural design effectively dampens noise, minimizing the acoustic disturbances generated by the exhaust system. - **Applications**: Primarily used in diesel vehicle exhaust systems, this component helps lower pollutant emissions, optimize the combustion process, enhance fuel efficiency, and ensure stable engine operation. Ultimately, it contributes to emission reduction and environmental protection. - **Usage**: Typically integrated into a wide range of diesel-powered equipment, such as excavators, bulldozers, wheel loaders, and other construction machinery. It is also suitable for material-handling vehicles powered by liquefied petroleum gas (LPG), gasoline, or natural gas.
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