Glossary · term

Four-stroke

Machines

Definition
Intake, compression, power, exhaust — one power stroke every two revolutions. Otto's 1876 cycle, and most engines on the road.
Aliases
four stroke, two-stroke
Domain
Machines

Open on the Glossary shelf — the interactive card, the filters, and everything alongside it.

From the Glossary database in Notion, last edited 2026-08-17. This page is the row, rendered by the build; nothing on it is written by hand.