Back to the top Achates Power Fundamentally Better Engines Achates Power engineers have published a series of technical papers to help inform the industry about the advantages of opposed piston engines and to document measured results. The most important papers are available below. Achates Power - Ultralow NOx at Low Loads and Idle 537.3 KBJune 17, 2021 Hydrogen Opposed-Piston Engines 842.0 KBMay 21, 2021 Summary of the CARB Heavy-Duty Demonstration Program Review 739.2 KBApril 28, 2021 Achates Power Opposed-Piston Engine Oil Consumption and Durability Results 463.5 KBFebruary 8, 2021 Achates Power Opposed-Piston Heavy-Duty Diesel Engine Demonstration Performance Results-Ultralow NOx without additional hardware 844.8 KBDecember 17, 2020 Achates Power Cost Study White Paper - March-2020 316.7 KBMarch 27, 2020 HD Diesel Performance Results 462.1 KBMarch 27, 2020 Initial Results on a new Light-Duty 2.7L Opposed-Piston Gasoline Compression Ignition Multi-Cylinder Engine 1.3 MBOctober 17, 2019 Experimental Comparison of GCI and Diesel Combustion in a Medium-Duty Opposed-Piston Engine 751.8 KBOctober 17, 2019 Fuel Injection System for Opposed-Piston Gasoline Compression-Ignited (OP-GCI) Engines 4.0 MBApril 9, 2019 Achieving Ultra-Low Oil Consumption in Opposed Piston Two-Stroke Engines 1.6 MBMarch 1, 2019 Cold-Start WHTC and WHSC Testing Results on Multi-Cylinder Opposed-Piston Engine Demonstrating Low CO 2 Emissions while Meeting BS-VI Emissions and Enabling Aftertreatment Downsizing 2.5 MBDecember 21, 2018 Cold Start HD FTP Test Results on Multi-Cylinder Opposed-Piston Engine Demonstrating Rapid Exhaust Enthalpy Rise to Achieve Ultra Low NOx 1.2 MBMay 18, 2018 New 2.7L 650 Nm Opposed-Piston Engine for Light Commercial Vehicles 583.1 KBFebruary 1, 2018 Developing a 55% BTE Commercial Heavy-Duty Opposed- Piston Engine without a Waste Heat Recovery System 4.1 MBNovember 15, 2017 New developments for Opposed-Piston Engine: Tailpipe emissions analysis and test results, funded research for gasoline compression ignition 404.6 KBJuly 6, 2017 Exploring the Next Frontier in Efficiency with the Opposed-Piston Engine 599.8 KBJuly 6, 2017 The Opposed-Piston Engine: The Next Step in Vehicle Efficiency 1.5 MBJuly 6, 2017 Achieving Bharat Stage VI Emissions Regulations While Improving Fuel Economy with the Opposed-Piston Engine 3.3 MBJuly 6, 2017 Simulation and Analysis of After-Treatment Systems (ATS) for Opposed-Piston Engine 989.2 KBFebruary 6, 2017 Developing a 55+ BTE Commercial Heavy-Duty Opposed-Piston Engine without a Waste Heat Recovery System 1.3 MBDecember 19, 2016 Multi-Cylinder Opposed-Piston Engine Results on Transient Test Cycle 5.7 MBOctober 18, 2016 Multi-Cylinder Opposed Piston Transient and Exhaust Temperature Management Test Results 4.6 MBDecember 2, 2015 Opposed-Piston 2-Stroke Multi-Cylinder Engine Dynamometer Demonstration 5.6 MBJune 19, 2015 Low Emissions and Rapid Catalyst Light-Off Capability for Upcoming Emissions Regulations with an Opposed-Piston, Two-Stroke Engine 970.7 KBApril 13, 2015 Modernizing the Opposed-Piston Engine for More Efficient Military Ground Vehicle Applications 1.1 MBApril 13, 2015 Modernizing the Opposed-Piston, Two-Stroke Diesel Engine for More Efficient Commercial Vehicle Applications 2.4 MBApril 13, 2015 Modernizing the Opposed-Piston, Two-Stroke Engine for Clean, Efficient Transportation 1.0 MBApril 13, 2015 Effects of Injection Pattern Design on Piston Thermal Management in an Opposed-Piston Two-Stroke Engine 2.2 MBApril 13, 2015 Opposed-Piston, Two-Stroke Diesel Engine Advantages in Meeting Higher Fuel Efficiency and Emissions Standards 1.4 MBApril 13, 2015 Practical Applications of Opposed-Piston Engine Technology to Reduce Fuel Consumption and Emissions 2.5 MBApril 13, 2015 Optimizing Combustion in an Opposed-Piston, Two-Stroke (OP2S) Diesel Engine 2.0 MBApril 13, 2015 Meeting Stringent 2025 Emissions and Fuel Efficiency Regulations with an Opposed-Piston, Light-Duty Diesel Engine 5.6 MBApril 13, 2015 Achieving the Most Stringent CO2 Commercial Truck Standards with Opposed Piston Engine 1.5 MBApril 13, 2015 Cylinder Cooling for Improved Durability on an Opposed-Piston Engine 2.2 MBApril 16, 2012 The Renaissance of the Opposed-Piston Two-Stroke Diesel Engine for Commercial Applications 623.5 KBSeptember 22, 2011 Thermodynamic Benefits of Opposed-Piston Two-Stroke Engines 2.1 MBSeptember 14, 2011 The Achates Power Opposed-Piston Two-Stroke Engine: Performance and Emissions Results in a Medium-Duty Application 1.1 MBSeptember 13, 2011 2011_SRM_Winter2011 636.6 KBJanuary 2, 2011 Opposed-Piston Two-Stroke Diesel Engine – A Renaissance 2.5 MBJanuary 1, 2011 Opposed-Piston Engine Renaissance – Power for the Future 2.5 MBDecember 10, 2010 4060 Sorrento Valley Blvd. San Diego, CA 92121 +1 858.535.9920 Quick Navigate Home About Achates Purchasing Terms Privacy Policy News & Blog Resources Careers Contact Subscribe to the Achates Power Newsletter © 2020 Achates Power, Inc. 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