The diffuser section of a jet engine is located between which two sections?

The diffuser section of a jet engine is located between which two sections?

• A. The inlet and the combustion chamber
• B. The turbine and the exhaust
• C. The combustion chamber and the turbine
• D. The compressor section and the combustion section

Answer: (D)

The diffuser’s role is to recover pressure and slow the flow so the combustor can receive a steady, high-pressure, low-velocity stream. Placing the diffuser between the compressor and the combustion section lets the airflow decelerate after being compressed, which raises its static pressure and smooths out any velocity nonuniformities before it enters the combustor. This improves fuel–air mixing, flame stability, and overall combustion efficiency, while reducing pressure losses downstream.

The diffuser’s role is to recover pressure and slow the flow so the combustor can receive a steady, high-pressure, low-velocity stream. Placing the diffuser between the compressor and the combustion section lets the airflow decelerate after being compressed, which raises its static pressure and smooths out any velocity nonuniformities before it enters the combustor. This improves fuel–air mixing, flame stability, and overall combustion efficiency, while reducing pressure losses downstream.