Chinese | Customer Login | Contact View Past Issues Our Formula - Opposed-Piston - Two-Stroke - Compression Ignition About Us - Timeline - Capabilities - Strategy Our Team - Leadership - Technical Advisory Board - Industry Advisory Board - Investors - Board of Directors - Careers Media Center - Press Kit - News - Videos - Newsletter - Awards - Events - Links - Blog - Technical Papers Customer Login Supplier Portal Contact Us Throughout the 20th century, when the utmost fuel, weight and volume efficiencies were required to propel aircrafts, ships and vehicles, an unconventional type of compression ignition engine was used: opposed-piston engines (1) . Two major strengths of this type of engine make them better: Opposed-piston architecture: With two pistons per cylinder, working in opposite reciprocating action, these engines do not n...