Turbine/Propulsion Engine Cooling TRIZ Cases

A film cooling hole with side and layback diffusion portions controls coolant flow angles for stable coverage.

A bore tube directs cooling airflow through an annular passage within the inner shaft, reducing temperature and preventing material degradation.

Rotor centering cooling system reduces thermal gradients between top and bottom struts to maintain exhaust bearing body centering.

An airfoil leading edge trough creates a vortex that limits bow wave upstream extent, preventing hot gas ingestion into temperature-sensitive cavities.

Segmented baffles with radial gaps protect composite casings from thermal damage without restricting auxiliary equipment cooling.

Variable frequency drive controller regulates electric oil pump torque and speed independent of engine rotation to maintain cooling during low-speed operations.

Baffle plates in the mixing chamber redirect cooling flows to generate swirl, reducing pressure losses and improving heat transfer in turbine wheel spaces.

Independent pressurizing means supplies heated air to expand turbine clearances, reducing startup time and preventing cat back during shutdown.

A gas turbine cooling system uses a heat exchanger and valve assembly to manage air pressure and temperature.