The dual fuel compression ignition internal combustion engine system integrates compressed natural gas (CNG) and diesel to leverage the strengths of both fuels. This innovative system uses a reactivity-controlled compression ignition (RCCI) approach, combining a low reactivity fuel (CNG) with a high-reactivity fuel (diesel) for optimal combustion. The engine features an advanced exhaust gas recirculation (EGR) system, including a catalytic converter and gas cooler, to reduce harmful emissions such as NOx and particulate matter while maintaining high brake thermal efficiency. Experimental results demonstrate significant reductions in emissions without compromising engine performance, making this technology ideal for applications in automotive, heavy-duty transportation, marine engines, agricultural machinery, and power generation.
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Category of Patent
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Reducing emissions from internal combustion engines can significantly lower the environmental impact, contributing to better air quality and public health. It also supports global efforts towards sustainable and eco-friendly transportation.
- Dual Fuel System: The engine uses a combination of CNG and diesel, where CNG is premixed with intake air and diesel is directly injected, allowing efficient combustion and significant emission reductions.
- Exhaust Gas Recirculation (EGR): Incorporates a sophisticated EGR system with a catalytic converter and gas cooler, improving the efficiency of exhaust treatment and reducing NOx emissions.
- Optimized Injection Strategy: Multiple injection strategies for diesel ensure optimal combustion, even at varying engine loads.
- Emission Reductions: Achieves substantial reductions in NOx and particulate matter while maintaining acceptable levels of hydrocarbons and carbon monoxide.
- High Brake Thermal Efficiency (BTE): Maintains or improves engine efficiency compared to traditional single-fuel engines.
- This dual fuel compression ignition system uniquely combines compressed natural gas (CNG) with diesel in a reactivity-controlled compression ignition (RCCI) engine.
- It uses a sophisticated EGR system with a catalytic converter and gas cooler, optimizing combustion and significantly reducing emissions.
- The integration of multiple injection strategies ensures efficient operation across various loads, maintaining high brake thermal efficiency while lowering NOx, particulate matter, hydrocarbons, and carbon monoxide emissions.
- The Dual Fuel Compression Ignition Internal Combustion Engine System, which employs both Compressed Natural Gas (CNG) and Diesel, represents a significant advancement in automotive technology.
- This system leverages the high energy density of diesel for ignition while utilizing the cleaner-burning properties of CNG to reduce overall emissions and improve fuel efficiency.
- Recent developments have focused on optimizing fuel injection strategies, combustion chamber design, and electronic control systems to seamlessly integrate the dual fuels. As a result, these engines are becoming increasingly attractive for both environmental and economic reasons, offering a viable solution for reducing the carbon footprint of heavy-duty and commercial vehicles.
Automotive industry, Heavy-duty transportation, Marine and shipping industries, Agricultural machinery, Power generation
- Automotive Engines: Passenger cars and commercial vehicles.
- Heavy-duty Vehicles: Trucks, buses, and construction equipment.
- Marine Engines: Ships and boats requiring high efficiency and low emissions.
- Agricultural Machinery: Tractors and other farming equipment.
- Power Generation: Engines used in generators and backup power systems.