Napier Deltic

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Animation of a Deltic engine

The Napier Deltic is an unusual type of diesel engine. It was used in boats and railway locomotives.[1] The cylinders are arranged in a triangular form with two pistons in each cylinder. There are three crankshafts which are geared together at one end of the engine. These engines usually had nine cylinders (three banks of three) or eighteen cylinders (six banks of three). These engines were built by D. Napier & Son.

Key to animation[change | change source]

  • Green = incoming air
  • Orange = burning fuel/air mixture
  • Purple = outgoing exhaust gas

References[change | change source]

  1. "Napier Deltic". Absolutely evetything about boats. Anchors Aweigh Academy. Retrieved 29 June 2018.