- two-valve engine
- An engine with two valves per cylinder
Dictionary of automotive terms. 2015.
two-valve engine
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Two-stroke engine — Brons two stroke V8 Diesel engine driving a Heemaf generator. A two stroke engine is an internal combustion engine that completes the process cycle in one revolution of the crankshaft (an up stroke and a down stroke of the piston, compared to… … Wikipedia
three-valve engine — An engine with two intake valves and one exhaust valve per cylinder. A four cylinder three valve engine is also called a 12 valve engine … Dictionary of automotive terms
sleeve-valve engine — sleeveˈ valve engine noun A type of engine in which two cylindrical metal sleeves, one inside the other, slide up and down on a film of oil, providing intake and exhaust passages as the port openings pass each other • • • Main Entry: ↑sleeve … Useful english dictionary
piston-valve engine — A two stroke engine that relies on the ports in the cylinder walls to control admission and exhaust of the air/fuel mixture; it is not equipped with other control elements such as rotary valves … Dictionary of automotive terms
twelve-valve engine — A three cylinder engine with four valves per cylinder (e.g., Daihatsu), or a six cylinder engine with two valves per cylinder, or a four cylinder engine with three valves per cylinder, i.e., two inlet valves and one exhaust valve … Dictionary of automotive terms
engine — A device for changing fuel energy to mechanical energy. The term applies to the primary source of power generation. In Britain there is a desire to make a clear distinction between engine and motor so that motor refers only to electric power… … Dictionary of automotive terms
Engine balance — is the design, construction and tuning of an engine to run smoothly. Engine balance reduces vibration and other stresses, and may improve the performance, efficiency, cost of ownership and reliability of the engine, as well as reducing the stress … Wikipedia
Engine braking — is where the retarding forces within an engine are used to slow a vehicle down, as opposed to using an external braking mechanism, for example friction brakes or magnetic brakes. The term is often confused with several other types of braking,… … Wikipedia
engine type — Over the years of engine development, several types or configurations have been made. All of them relate to the position of the valves and the camshaft (s) that operates them. air cooled engine An engine which is not cooled by antifreeze but by… … Dictionary of automotive terms
Engine displacement — One complete cycle of a four cylinder, four stroke engine. The volume displaced is marked in orange. Engine displacement is the volume swept by all the pistons inside the cylinders of an internal combustion engine in a single movement from top… … Wikipedia
