An engine that operates on diesel fuel and principally relies on compression-ignition for engine operation. The non-use of a throttle during normal operation is indicative of a diesel engine.

an compression-ignition type of internal-combustion engine in which fuel is sprayed into the cylinder after the air in it has been compressed to about 550oC, thus causing the ignition of the oil, at substantially constant pressure.

Termed a compression-ignition engine, it depends upon the heat generated by compression to fire the fuel, which in this case is diesel oil.  Also known as an oel motor (oil motor).  DBAG abbreviates this as OM.

a type of internal-combustion engine that uses low-volatility petroleum fuel and fuel injectors and initiates combustion using compression ignition (as opposed to spark ignition, which is used with gasoline engines.)

An engine with high compression that pressurizes the diesel oil fuel and fires the charge through compression not by a spark plug.

Fuel oil was found to ignite spontaneously when compressed to high pressure and a German inventor called Diesel produced an engine that used this principle. Hence the name Diesel engine and Diesel fuel.

an internal-combustion engine that burns heavy oil

a machine which produces power by burning oil in air which has been quickly compressed to a high pressure by a piston moving in a closed cylinder

an ideal engine for fuel made from vegetable oil

a type of heat engine that uses the internal combustion process to convert the energy stored in the chemical bonds of the fuel into useful mechanical energy

a type of internal combustion engine which ignites fuel by compressing it (which in turn raises the temperature) as opposed to using an outside source, such as a spark plug

An internal combustion engine that ignites fuel solely by means of the heat of highly compressed air within its cylinders.

An internal combustion engine that does not have an electrical ignition system. Ignition results from the compression of external air in the combustion chamber of the engine to a point where spontaneous combustion of the air/fuel mixture occurs.

A form of internal combustion engine, which relies on the heat of compression to ignite the fuel mixture.

A compression-ignition piston engine in which fuel is ignited by injecting it into air that has been heated (unlike a spark-ignition engine).

A type of engine invented by Dr. Rudolf Diesel at the end of the 19th century. It was originally designed to run on a variety of fuels, including vegetable oils.

An engine, fueled by diesel oil, used in some trains either to power the engine directly or to drive the electric motors that power the engine.

An engine where fuel and combustion air are kept separate until the time of ignition. Typically, a diesel engine injects diesel fuel into its combustion chamber after the air has been highly compressed. The heat caused by compression immediately ignites the fuel. Diesel engines are much more energy efficient than gasoline engines, typically are more durable, and have the ability to do work at very low speeds.

Internal-combustion engine in which the fuel is ignited by the heat of compression.

An internal combustion engine in which the air fuel combustion mixture ignites entirely by the heat of compression.

An engine that relies on the heat generated when compressing air to ignite the fuel, and which therefore doesn't need an ignition system. Diesel engines have much higher compression ratios than petrol engines, normally around 20:1.

Powers many long and heavy type A motorhomes and bus conversions. More powerful and durable than gasoline engines. Built tough -- getting 250,000 miles from a diesel without any repairs is normal.

an internal combustion engine in which the heat required for ignition of the fuel is generated by the compression of the air used for combustion; also known as compression ignition engine; the simpler types are two-stroke engine and four-stroke engine

An engine that burns diesel fuel instead of gasoline. The diesel oil is injected directly into the combustion chamber, where it's ignited by the heat caused by intense compression, rather than by a spark from a spark plug, as in a carburetor.

A diesel engine uses heavier weight components than gas engines to handle higher compression ratios. Typically, diesel engines run with greater efficiency and higher torque than similar size gas engines. These attributes lead to better fuel economy and towing performance. Diesel engines do not have spark plugs or carburetors. Instead glow plugs are used to preheat air in the cylinders to ensure easy starts. Once the engine is started, compression heats the fuel in the cylinders for combustion.

n: a high-compression, internal-combustion engine used extensively for powering drilling rigs. In a diesel engine, air is drawn into the cylinders and compressed to very high pressures; ignition occurs as fuel is injected into the compressed and heated air. Combustion takes place within the cylinder above the piston, and expansion of the combustion products imparts power to the piston.

an internal combustion engine that uses diesel as fuel, producing harmful fumes.

An engine that operates under the compression-ignition principle. The compression ratio in the engine is often two to three times higher than in a gasoline engine. In turn, fuel burns without the need for a spark plug to initiate combustion. The higher co

Type of internal combustion engine that burns fuel oil with the ignition brought about by heat resulting from air compression rather than by an electric spark as it is in a gasoline engine.

The diesel engine is a type of internal combustion engine. It is a compression ignition engine, in which the fuel ignites as it is injected into the engine. By contrast, in the gasoline engine the fuel is mixed first and then ignited by a spark plug.