Automotive Combustion and Fuel Engineering
Summary
Automotive combustion and fuel engineering encompasses the design, optimisation and integration of in-cylinder processes, fuel formulations and after-treatment systems to deliver maximum efficiency with minimal environmental impact. Central themes include precision fuel delivery via high-pressure direct injection, tailored fuel chemistries—from conventional diesel and gasoline to biofuels, hydrogen and synthetic ethers—and advanced combustion strategies such as homogeneous charge compression ignition, reactivity-controlled compression ignition and stratified charge spark ignition. Equally important are exhaust-gas recirculation techniques and catalytic after-treatment to mitigate nitrogen oxides, particulate matter and unburned hydrocarbons. Progress in materials science, computational fluid dynamics and rapid optical diagnostics has deepened understanding of spray atomisation, mixture formation and flame propagation. Concurrent developments in machine-learning-guided engine calibration and life-cycle assessment ensure that innovations in fuel and combustion technology yield genuine reductions in greenhouse-gas emissions and local pollutants throughout the vehicle’s life. Together, these advances underpin the global transition towards cleaner, more efficient internal combustion powertrains that can coexist with electrified architectures and renewable energy sources.
Research from Nature Portfolio
Recent studies have demonstrated the industrial potential of single-atom catalysts for automotive exhaust after-treatment. By immobilising isolated noble-metal atoms onto robust oxide supports, researchers have achieved near-complete dispersion and unprecedented atom economy in oxidation and reduction reactions. These catalysts maintain their activity and structural integrity even after prolonged exposure to exhaust-like temperatures, resisting sintering and deactivation. Scalable synthesis methods and support-engineering approaches have shown that single-atom catalyst technologies can match or exceed the performance of traditional nanoparticle systems while significantly reducing precious-metal loading. Such breakthroughs promise lighter, more durable catalytic converters and lower overall manufacturing costs.
Automotive Combustion and Fuel Engineering publication trend
The graph below shows the total number of articles in automotive combustion and fuel engineering across all publications each year (not limited to Nature Index journals).
Technical terms
Compression ignition (CI): Ignition of fuel–air mixture by the heat generated during compression rather than by a spark.
Spark ignition (SI): Combustion initiated by an electrical spark in a premixed fuel–air charge.
Exhaust-gas recirculation (EGR): Reintroduction of a portion of exhaust gases into the intake to reduce peak combustion temperatures and NOx formation.
Reactivity-controlled compression ignition (RCCI): A dual-fuel mode where a low-reactivity fuel is premixed and a high-reactivity fuel is directly injected, creating stratified ignition and low-temperature combustion.
Pre-chamber ignition: Use of a small auxiliary chamber to initiate combustion, generating hot jets that ignite the main charge under dilute or lean conditions.
Single-atom catalyst: A heterogeneous catalyst in which individual metal atoms are dispersed on a support, maximising active site utilisation and thermal stability.
References
- Single atom catalysis poised to transition from an academic curiosity to an industrially relevant technology. Nature Communications (2021).
- Synthesis of Co,Ce Oxide Nanoparticles Using an Aerosol Method and Their Deposition on Different Structured Substrates for Catalytic Removal of Diesel Particulate Matter. Catalysts (2023).
- Study on the Effects of Exhaust Gas Recirculation and Fuel Injection Strategy on Transient Process Performance of Diesel Engines. Sustainability (2023).
- Optical spray investigation and numerical spray model calibration for the RCCI combustion mode with ethanol/CNG and diesel fuel. Energy Conversion and Management (2024).
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