Jinqu specializes in producing mufflers, SCR exhaust gas aftertreatment systems, and air reservoirs

The Ruidongli-DOC Component Catalytic Muffler is the core component of diesel vehicle exhaust treatment systems, and its functions, uses, and applications are as follows:

Main function

- By using an internally coated catalyst (such as vanadium pentoxide V₂O₅), carbon monoxide (CO), hydrocarbons (HC), and nitrogen oxides (NOx) in diesel vehicle exhaust are converted into harmless carbon dioxide (CO₂), nitrogen gas (N₂), and water (H₂O).

- By integrating muffler structures such as perforated tubes, baffles, and expansion chambers, the system reduces exhaust noise and enhances driving comfort through sound wave reflection, interference, and energy conversion via sound-absorbing materials like glass fiber.

Main Uses

- Designed to meet China IV and higher emission standards, significantly reducing pollutants in diesel vehicle exhaust and helping vehicles pass environmental inspections.

- Optimize exhaust backpressure to reduce engine power loss.

- By purifying exhaust gases, we reduce the corrosion of the engine and exhaust system caused by high-temperature harmful gases, thereby extending the lifespan of components.

Application scenarios

Heavy-duty trucks/coaches: Address high-emission exhaust gases and meet environmental standards for long-distance transportation.

Light-duty commercial vehicles—such as urban logistics trucks—balance power performance with emission compliance.

Non-road machinery—such as construction equipment and agricultural machines—is designed to handle exhaust treatment under complex operating conditions.

Technological Advantages

- Utilizing a cocoon-blue stone honeycomb ceramic carrier to increase the catalyst's contact area and enhance reaction efficiency.

- The dual-catalyst design (such as an SCR system) achieves staged purification, ensuring high NOx conversion efficiency.

- The urea injection system works in tandem with the gas-liquid mixer, ensuring uniform mixing of ammonia and exhaust gases to enhance SCR reaction efficiency.

- Integrates catalytic and muffling functions, reducing system size and making it easy to install in the limited space of vehicles.

Key Words

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.

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Classification

DOC Series (Sizes Can Be Customized)