What role does the turbine rotor play in the gas turbine engine?

The turbine rotor plays a critical role in the operation of a gas turbine engine by transferring power to the main shaft. In a gas turbine, the combustion process generates high-temperature, high-pressure gases that expand through the turbine. As these gases pass over the turbine rotor blades, they cause the rotor to spin. The rotor is connected to the main shaft, and its rotation drives the shaft, which in turn powers the compressor at the front of the engine and may also provide power to any associated systems through the main shaft.

This transfer of power is essential for maintaining the engine's cycle. The energy extracted from the exhaust gases through the turbine rotor is what enables the engine to maintain airflow through the compressor and sustain the combustion process, thus ensuring continuous operation. The turbine rotor’s effectiveness is integral to the overall efficiency and performance of the gas turbine engine.