What do turbine guide vanes refer to in an engine?

Turbine guide vanes are integral components of a gas turbine engine that serve as the stator part of the turbine section. In this context, they play a crucial role in directing the flow of high-temperature exhaust gases towards the turbine rotor blades. By properly orienting the flow, these guide vanes enhance the efficiency of energy transfer from the gas flow to the rotor blades, ultimately improving the engine's performance and power output.

Their strategic positioning allows them to control the angle at which the gas strikes the rotor blades, which is essential for maximizing the aerodynamic efficiency. This mechanism helps the rotor blades to extract energy from the exhaust gases effectively, contributing greatly to the overall operation of the turbine engine.

In contrast, a type of fuel nozzle involves the injection of fuel into the combustion chamber, rotor blades refer to the rotating parts of the turbine that convert kinetic energy from the gases into mechanical energy, and the compressor assembly is responsible for compressing the incoming air before it enters the combustion chamber. Each of these components has distinct functions that differ from the role of turbine guide vanes in the engine system.