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 ?
The combin- ation of two-stroke and four-stroke engine tech-nologies could offer drivers the best of all worlds, according to the findings of a UK research project.
OEMs require engines for both new aircraft sales and repowers for legacy customers looking to upgrade to a modern four-stroke engine.
On the other hand, the Gixxer in the 150cc segment packs a single cylinder, air-cooled, four-stroke engine under the hood.
The air cooled 100cc four-stroke engine only pumps out about 8bhp and you have to be ready at the head of the traffic lights if you are not to be swallowed up, but compared with a 50cc moped it is a rocket ship
We will deliver our first engines to select sport aircraft manufacturers needing an economical, lightweight four-stroke engine to power their craft.
The vehicle is equipped with a four-stroke engine that delivers 8.
Sawtooth - The Sawtooth, an entry level value machine, places a 200cc, four-stroke engine in a lightweight chassis.
MAN Diesel & Turbo has been awarded a Tier III-compatibility certificate by the DNV-GL classification society for MAN 8L21/31 four-stroke engine aboard a DFDS Seaways ship with a retrofitted SCR (Selective Catalytic Reduction) system.
The model will be equipped with a new 150cc liquid cooled four-stroke engine that delivers 14.
The streamlined, four-stroke engine creates continuous injection and combustion in a single chamber, powered by just two types of moving parts (the vanes and the rotor).
The bike is equipped with the same 1783cc, V-twin, liquid-cooled four-stroke engine as the standard M1800R.