Transportation Science

What's the difference between a rotary engine and a piston engine?
Answered by Discovery Channel
  • Discovery Channel

    Discovery Channel

  1. In a piston engine, the cylinder does four separate jobs in the same space; in a rotary engine, the intake, compression, combustion and exhaust all happen in different places. Another big difference between piston and rotary engines is that rotary engines have fewer moving parts: three in a two-rotor engine. Meanwhile, a typical four-cylinder piston engine has a minimum of 40 parts that move, including pistons, camshafts, valves and timing belts.

    More answers from Discovery Channel »



Still Curious?
  • Will hybrid car repairs continue to be expensive in the future?


    Answered by Science Channel

  • What steering systems do cars use today?


    Answered by Science Channel

  • How do I know if my alternator's failing?


    Answered by Science Channel

Advertisement

What are you curious about?

Image Gallery