What are the non-practical features of a sterling engine that cause the internal combustion engine to be used instead (in a car)? (e.g. price, size, the power to weight ratio, etc.)

Can you name any that aren't as obvious as those stated above? Please provide answers that aren't obvious but are still relevant.

  • 1
    $\begingroup$ youtu.be/saCdvAp5cow This video is about a swedish submarine using sterling engine.I think this might interest you. $\endgroup$
    – user17332
    Commented Apr 26, 2019 at 2:37
  • $\begingroup$ @Mohan will look at it soon thanks $\endgroup$
    – Ethan
    Commented Apr 26, 2019 at 2:40
  • 2
    $\begingroup$ what's your research so far? So we don't repeat stuff that you allready know. $\endgroup$
    – mart
    Commented Apr 26, 2019 at 5:39
  • 1
    $\begingroup$ I believe it's because they're bigger, heavier, and "want" to run at a constant speed -- but I learned all of that from the Internet. $\endgroup$
    – TimWescott
    Commented Apr 26, 2019 at 15:37

1 Answer 1


I found out this for one of the other features but would still like more. City driving where there is stop-start activity is not beneficial for the usage of sterling engines as well as the fact that you are not able to link the cylinders of multiple sterling engines to one another like you can with a combustion engine.

  • 1
    $\begingroup$ Ethan, either of those limitations are not difficult to overcome with proper transmission/drivetrain design. I think you will find that supply chain and infrastructure for design/manufacturing of Sterling engines at scale is one of the primary challenges which prevents greater adoption. $\endgroup$
    – CBRF23
    Commented Apr 26, 2019 at 12:27

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.