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2. Diesel engine - Wikipedia

   en.wikipedia.org/wiki/Diesel_engine

   The diesel internal combustion engine differs from the gasoline powered Otto cycle by using highly compressed hot air to ignite the fuel rather than using a spark plug (compression ignition rather than spark ignition). In the diesel engine, only air is initially introduced into the combustion chamber.

3. Two-stroke diesel engine - Wikipedia

   en.wikipedia.org/wiki/Two-stroke_diesel_engine

   A two-stroke diesel engine is a diesel engine that uses compression ignition in a two-stroke combustion cycle. ... or a spark plug or other ignition system. Another ...

4. Diesel cycle - Wikipedia

   en.wikipedia.org/wiki/Diesel_cycle

   Many model airplanes use very simple "glow" and "diesel" engines. Glow engines use glow plugs. "Diesel" model airplane engines have variable compression ratios. Both types depend on special fuels. Some 19th-century or earlier experimental engines used external flames, exposed by valves, for ignition, but this becomes less attractive with ...

5. Napier Deltic - Wikipedia

   en.wikipedia.org/wiki/Napier_Deltic

   The Deltic-powered Hunt-class mine countermeasures vessel HMS Ledbury. Development began in 1947 and the first Deltic model was the D18-11B, produced in 1950. It was designed to produce 2,500 hp (1,900 kW) at 2000 rpm for a 15-minute rating; the continuous rating being 1,875 hp (1,398 kW) at 1700 rpm, based on a 10,000-hour overhaul or replacement life. [3]

6. Firing order - Wikipedia

   en.wikipedia.org/wiki/Firing_order

   For this inline-4 engine, 1-3-4-2 could be a valid firing order.. The firing order of an internal combustion engine is the sequence of ignition for the cylinders.. In a spark ignition (e.g. gasoline/petrol) engine, the firing order corresponds to the order in which the spark plugs are operated.

7. Spark-ignition engine - Wikipedia

   en.wikipedia.org/wiki/Spark-ignition_engine

   Spark-ignition engines are commonly referred to as "gasoline engines" in North America, and "petrol engines" in Britain and the rest of the world. [1] Spark-ignition engines can (and increasingly are) run on fuels other than petrol/gasoline, such as autogas (), methanol, ethanol, bioethanol, compressed natural gas (CNG), hydrogen, and (in drag racing) nitromethane.