Diesel

Diesel engine

A diesel engine is an internal combustion engine in which ignition of diesel fuel is caused by the elevated temperature of the air in the cylinder due to mechanical compression; thus, the diesel engine is also called a compression-ignition engine. This contrasts with engines using spark plug-ignition of the air-fuel mixture, such as a petrol engine or a gas engine. The diesel engine is named after its inventor, German engineer Rudolf Diesel.

Diesel fuel

Diesel fuel, also called diesel oil, fuel oil (historically), or simply diesel, is any liquid fuel specifically designed for use in a diesel engine, a type of internal combustion engine in which fuel ignition takes place as a result of compression of the inlet air and then injection of fuel without a spark. Therefore, diesel fuel needs good compression ignition characteristics.

Diesel (company)

Diesel S.p.A. is a retail brand headquartered in Breganze, Italy known for luxury denim which also vends clothing, footwear, and accessories. It is part of OTB Group.

diesel

Noun

1. A fuel derived from petroleum (or other oils) but heavier than gasoline/petrol. Used to power diesel engines which burn this fuel using the heat produced when air is compressed.
2. A vehicle powered by a diesel engine.

Verb

1. To ignite a substance by using the heat generated by compression.
2. For a spark-ignition internal combustion engine to continue running after the electrical current to the spark plugs has been turned off. This occurs when there's enough heat in the combustion chamber to ignite the air and fuel mixture without a spark, the same way that heat and pressure cause ignition in a diesel engine.