Turbine Truck Engines Inc. Announces New Renderings of 540 hp Engine Release

DELAND, Fla.--June 30, 2006--Turbine Truck Engines Inc. (TTE) (OTCBB:TTEG) released new conceptual renderings of their 540hp prototype "Detonation Cycle Gas Turbine" (DCGT) engine on their web site (www.turbinetruckengines.com) today. TTE released nine renderings of the new prototype that is currently under construction. The renderings were made using the design program CATIA, which is the same program that Airbus designed the A380 and Boeing designed the 787.

The DCGT is a clean air, energy-efficient, turbine engine that supports flex-fuel and mixed fuel capabilities. Based on price and availability, the ultimate driver of this engine can choose to burn any fuel or mixture thereof: gasoline, diesel, propane, natural gas, methanol, ethanol, and hydrogen in this engine.

The DCGT can be designed and manufactured, as a new or replacement engine for all heavy duty trucks that utilize engines ranging from 300 to 1,000 hp. It uses a unique Electromagnetic Isothermal Combustion (EIC) Process that powers the engine. The EIC process produces complete combustion of fuel-oxidizer mixtures in cyclic detonations that negate unwanted NOx and CO emissions. The high-pressure gases produced by the detonations drive a unique turbine producing shaft horsepower.

The EIC process enables the DCGT to operate with bower air at low static pressure, negating the necessity of compressing and preheating fuel-oxidizer mixtures prior to combustion. By eliminating the compression of fuel-oxidizer mixtures, the DCGT achieves higher thermal efficiencies in a simplified mechanical structure.