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Locating pins/pegs to keep the piston rings in a fixed position

Why two-stroke diesel engines may have locating pins or pegs to keep the piston rings in a fixed position?

04 Feb, 16:36

Feb. 4, 2021, 4:36 p.m.
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Answer:

Preventing piston rings from turning helps to avoid:

  1. The risk of the ends of the piston rings being forced out by the gas pressure and catching on the scavenge ports
  2. The risk of piston ring ends vertical alignment which leads to blow-by
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04 Feb, 16:44

Feb. 4, 2021, 4:44 p.m.
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