Two-stroke engine

6-2-045

An internal combustion engine in which the working cycle is completed in two strokes of the piston (i.e. in one revolution of the crankshaft).

Note: 1 The downstroke of the piston corresponds to

- fuel injection, combustion and the beginning of exhaustion in diesel engines

- explosion and exhaustion in petrol engines

Note: 2 The upstroke of the piston corresponds to

- intake of air and compression in diesel engines

- admission of mixture and compression in petrol engines

Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)

English