Axial Disc Boundary Layer Turbine Engine for Low-Speed Startup

The turbine is segmented into multiple axially aligned discs rather than using a single bladed rotor. This segmentation allows the turbine to process fluid through multiple stages simultaneously, increasing energy output per unit size while the cumulative effect of multiple discs helps overcome startup inertia

The invention transitions from traditional radial blade motion to axial disc arrangement with radial fluid flow. Fluid enters at the outer periphery and spirals radially inward across the disc surfaces, utilizing boundary layer effects. This dimensional change enables compact high-power-density design while the radial spiral path provides gradual acceleration

Dividing the turbine into multiple thin axially aligned discs reduces the mass and moment of inertia of each individual disc, minimizing centrifugal forces that cause warping. The segmented structure allows each disc to be lighter and more stable at high speeds while maintaining high energy output through the cumulative effect of multiple discs

The turbine uses thin disc structures rather than heavy bladed rotors. These thin disc films are inherently more resistant to warping at high speeds due to their low mass and distributed structure, while still effectively transferring energy from the fluid boundary layer to the rotating shaft

The multiple disc segmentation creates multiple fluid processing paths that work in parallel, increasing power density. The cumulative torque from multiple discs provides sufficient startup torque while maintaining compact dimensions for high energy output per unit size

The turbine utilizes pneumatic principles by allowing compressed gas to flow directly across the disc surfaces, utilizing boundary layer adhesion and drag forces. This pneumatic interaction is more efficient at converting gas pressure to rotational motion compared to traditional bladed impact methods, improving both startup characteristics and overall efficiency