SEE ALSO: Honda is Working on an Engine with Different-Sized Cylinders Curiously, this overall design is hardly new; the first instances of opposed-piston engines date back to the late 19th ...

While most engines made in the last 100 years have adhered to the standard single-piston per-cylinder design, the TS3, also known as the "Commer Knocker," is an exception. The opposed-piston ...

The free piston engine, a design with opposed pistons working against compressed air springs and combining both compression and firing strokes in a single axis, doesn’t turn anything in itself ...