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RISIn-Cylinder Temperature Measurements in a 55-cm3 Two-Stroke Engine Via Tunable Laser Absorption Spectroscopy
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In-cylinder temperature is a critical quantity for modeling and understanding combustion dynamics in internal combustion engines (ICEs). It is difficult to measure in small, two-stroke engines due to high operational speeds ...
Correlations for the Performance, Efficiency, and Energy Losses for Single Cylinder, Four-Cycle Internal Combustion Engines With Displaced Volumes Ranging From 40 to 200 cc
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Five commercial-off-the-shelf (COTS) engines ranging from 40 to 200 cc were tested as potential power plants for Group Two RPAs. The maximum brake power ranged from 1.8 to 5.0 kW. Of the five engines, two were designed for ...
Engine-Control Impact on Energy Balances for Two-Stroke Engines for 10–25 kg Remotely Piloted Aircraft
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The rapid expansion of the market for remotely piloted aircraft (RPA) includes a particular interest in 10–25 kg vehicles for monitoring, surveillance, and reconnaissance. Power-plant options for these aircraft are often ...
Energy Balance and Power Loss Pathway Study of a 120 cc Four-Stroke Internal Combustion Engine
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Efforts to improve the range and endurance of group 2 (10–25 kg), internal combustion engine (ICE) powered unmanned aerial vehicles (UAVs) have been underway for several years at Air Force Research Laboratory (AFRL). To ...
The Control Space for Knock Mitigation in Two-Stroke Engines for 10–25 kg Remotely Piloted Aircraft
Publisher: American Society of Mechanical Engineers (ASME)
Abstract: Interest is growing in converting commercially available, two-stroke spark-ignition engines from motor gasoline to low-anti-knock-index fuel such as diesel and Jet A, where knock-limited operation is a significant ...
Experimental Investigation of Fuel Anti-Knock-Index Requirements in Three Small Two-Stroke Engines for Remotely Piloted Aircraft
Publisher: American Society of Mechanical Engineers (ASME)
Abstract: Small remotely piloted aircraft (10–25 kg) that are powered by internal combustion engines typically operate on gasoline with an anti-knock index (AKI) > 80. To comply with the single-battlefield-fuel initiative [Department ...