The defining characteristic of a two-stroke engine is to fire (combust) every time the piston is at top dead center. This makes them highly power dense, but also notoriously makes two-stroke engines ...

Piston rings are small, but they play an essential role in the performance of internal combustion engines, and their ...

A fter NSU’s first forays into rotary power with the Wankel-Spider and the Ro-80 sedan in the 1960s, Mazda licensed the ...