What Causes the Exhaust Pipe of a Diesel Engine to Turn Red?

[MarianaAnn]

The main reasons for the exhaust pipe of a diesel engine turning red are: 1. Clogged air filter: Insufficient air intake leads to poor combustion; 2. Excessive fuel injection: Incomplete combustion, causing continued burning in the exhaust pipe; 3. Delayed fuel supply: Combustion lags, resulting in continued burning in the exhaust pipe; 4. Poor fuel injector atomization: Incomplete combustion, leading to burning in the exhaust pipe. Below is some additional information: 1. Introduction: A diesel engine is an internal combustion engine that uses diesel as fuel. Diesel engines are compression-ignition engines. 2. Principle: During operation, the diesel engine draws air into the cylinder, which is highly compressed by the piston's movement, reaching temperatures of 500-700°C. The fuel is then injected as a mist into the high-temperature air, mixing to form a combustible mixture that ignites automatically. The energy released during combustion acts on the piston crown, driving the piston and converting it into rotational mechanical work via the connecting rod and crankshaft.