Improved fuel-air ratio controls and advanced spark timing enhance efficiency in spark-ignition engines.
Internal combustion engines generate power by burning a fuel-air mixture in an enclosed space, creating high pressure that pushes a piston down, which in turn rotates a crankshaft. ENGINES & TRANSMISSIONS V0.1.2.32S 1.46
Trends include reducing weight and installation space while increasing service life and reducing costs. Advanced Technology & Reliability Improved fuel-air ratio controls and advanced spark timing
Phase I of the study investigated the emission-criticality of original equipment installed by the engine or vehicle manufacturers. U.S. Environmental Protection Agency (.gov) ENGINES & TRANSMISSIONS V0.1.2.32S 1.46