Between each row of rotating blades in a turbine engine compressor, the stationary blades that diffuse the air are called what?

Between each row of rotating blades in a turbine engine compressor, the stationary blades that diffuse the air are called what?

• A. Rotors
• B. Stators
• C. Nozzles
• D. Diffusers

Answer: (B)

In an axial compressor, the blades between rotating stages that are fixed to the casing and that serve to straighten and diffuse the flow are called stators. They remove the swirl left by the previous rotor and slow the air to raise its static pressure before it enters the next rotor stage. Rotors are the moving blades, while diffusers describe the broader purpose of reducing velocity to increase pressure, but the stationary, between-stages blades themselves are stators.

In an axial compressor, the blades between rotating stages that are fixed to the casing and that serve to straighten and diffuse the flow are called stators. They remove the swirl left by the previous rotor and slow the air to raise its static pressure before it enters the next rotor stage. Rotors are the moving blades, while diffusers describe the broader purpose of reducing velocity to increase pressure, but the stationary, between-stages blades themselves are stators.