four-stroke engine


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Related to four-stroke engine: Otto engine
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Noun1.four-stroke engine - an internal-combustion engine in which an explosive mixture is drawn into the cylinder on the first stroke and is compressed and ignited on the second strokefour-stroke engine - an internal-combustion engine in which an explosive mixture is drawn into the cylinder on the first stroke and is compressed and ignited on the second stroke; work is done on the third stroke and the products of combustion are exhausted on the fourth stroke
internal-combustion engine, ICE - a heat engine in which combustion occurs inside the engine rather than in a separate furnace; heat expands a gas that either moves a piston or turns a gas turbine
References in periodicals archive ?
It is a single-cylinder, air-cooled, four-stroke engine equipped with electronic injection and three-valve per cylinder distribution.
Forget all those complicated valves and camshafts of the four-stroke engine - the two-stroke technically only has two moving parts (the piston and the crankshaft).
This new version features a 125-cubic-centimeter, single-cylinder, four-stroke engine and a four-speed transmission.
The four-stroke engine is larger and more expensive (Palmer, 2013).
The vehicle is likely to share the 154.9 cc air-cooled, single cylinder, four-stroke engine that currently powers the company's top-selling motorcycle, Gixxer.
Among the topics are safety first, basic engine operation and configuration, four-stroke engine top-end inspection, motorcycle charging systems and direct current circuits, and motorcycle maintenance and emission control.
This engine is no cheap alternative but uses conventional, well-developed, four-stroke engine design practice.
Arcturus has also converted the JUMP 15's ultra reliable Honda four-stroke engine to fuel injection.
Gixxer, which made its debut at the Delhi Auto Expo, packs a single cylinder, air-cooled, four-stroke engine under the hood.
The most promising one is based on the design combining a four-stroke engine with a kind of a steam engine.
To signify the change from a two-stroke to a four-stroke engine, the DKW marque was dropped in favour of Audi, a name which had not been used since before the Second World War.
Bajaj will launch seven variants of the RE Compact which will come with either a two-stroke or a four-stroke engine. The company also plans to launch a diesel variant, adding to the three other fuel types of petrol, CNG and LPG the auto rickshaws will run on.