MIL-SPEC PERFORMANCE

TDI turbojets are designed for military applications. The robust structure of the engine makes survival in harsh environments (such as the wing pylon of a supersonic aircraft or high altitude UAV’s) possible. High shock/vibration loads and extreme temperature exposure (hot and cold) are normal environmental conditions for TDI engines.

STATE-OF-THE-ART TURBOMACHINERY

TDI engines maintain a simple design configuration utilizing a single-stage radial compressor, annular combustor, and mixed flow turbine. Although simple, state-of-the-art turbomachinery components are custom designed to provide component output and efficiency levels at the cutting-edge of technology, driving down fuel consumption while increasing thrust and power output.

LOW COST/COMPACT CONFIGURATION

TDI engines are designed for expendable vehicle applications. In this environment, affordability, compact size, and ease of installation are critical parameters for high-performance UAS and tactical munitions.

NO OIL OR ADDITIVES REQUIRED

The engine’s fuel is routed for cooling internal components and lubricating the bearings. The precision fuel transport system has the secondary benefit of pre-warming fuel prior to entering the combustion chamber. Since no lubricating oil or fuel additive is required, fuel load and performance per pound are not compromised, resulting in increased vehicle range.

EASY STARTING

The rotating components for TDI engines are a low inertia design for ease of engine cranking. The engines then provide assistance in cranking by igniting the combustor early in the starting sequence. This unique feature allows TDI engines to be “windmill” started throughout the flight envelope. Cranking cartridges may also be utilized if sufficient ram-ratio across the engine is not available (such as low speed or low altitude launch missions).

INTEGRAL ELECTRIC GENERATOR

A Permanent Magnet Generator (PMG) is integrally mounted to the engine shaft providing electrical power to the vehicle. This electricity is utilized to power all onboard vehicle functions (avionics, payloads, etc.). Electric starting capability is also available via this feature for certain missions and applications.

MULTI-FUEL CAPABILITY

The continuous combustion system of TDI engines permit the use of a wide variety of low and high volatility fuels. TDI engines are proven to benefit from easy starting, rapid burning, and complete combustion using commonly available kerosene and synthetic-grade fuels (JP4, JP5, JP8, JP10, JET-A, JET-A1, etc.).

THERMAL MANAGEMENT

The exteriors of TDI engines may be cooled by air routed through and around the engine. Additionally, TDI can provide insulation and thermal protection materials for protection of nearby components and structures and with the added benefit of reduced heat signature.

ENGINE CONTROL LAW

TDI’s engine control law performs engine management functions such as starting, accelerating, steady state governing, self testing, and shut-down operations. The control system also interfaces with air data sensors to compensate for changes in environmental conditions. This control logic may be incorporated directly into the vehicle flight computer or executed by a standalone control box.