Coates International Ltd Ends R&D on Combustible Engine; Will Begin Roll-Out of Revolutionary Spherical Rotary Valve System

WALL TOWNSHIP, N.J.--May 1, 20050, 2005--Coates International Ltd. (CIL) was established in 1988, with the intent to research, develop patent and market technology associated with a spherical rotary valve system. George Coates, who eventually became President and Chairman of the Board, developed this technology 17 years ago, and has secured fourteen United States patents and a large number of foreign patents for technological innovations related to the construction of the combustible engine.

The Coates Spherical Rotary Valve System is a radical departure from the conventional poppet valve. Procedurally, it alters the flow and the means of delivering the air and fuel mixture to the firing chamber and of expelling the exhaust produced when the mixture ignites. The "Coates" system utilizes spherical valves, which rotate in a cavity formed between a two-piece alloy cylinder head. The valves include channels, which connect to the intake and exhaust passages.

Coates stated, "The spherical rotary valve system provides such substantial benefits that this system has the potential to integrate within and revolutionize engine manufacturing and design. The Company's facility has already been visited by and hosted tours to the major manufacturers, and dialogue regarding the use of the technology is ongoing. Coates went on to say, "The major advantages of the Coates design include: Substantially lower CO carbon monoxide, HC hydrocarbon and NOX oxides of nitrogen emissions, Increased engine efficiency, Use of lower octane fuel, Elimination of oil from engine valves, Reduced lubrication and maintenance requirements, Reduced manufacturing costs, Reduced fuel consumption".

The Coates system's unique design also provides the company the flexibility to retrofit the system to internal combustion engines of all sizes. This adaptability, along with the system's capability of running on alternative fuels, opens markets that include automobiles and light trucks, heavy trucks and machinery, marine engines, military equipment, light aircraft and helicopters, lawnmowers and generators.

CIL has already completed forty-two prototypes of different types and sizes equipped with the spherical rotary valve system, five for automobiles and four for motorcycles. The most recent automobile prototype has been started over 7,000 times and has been road tested over 40,000 miles and has been running for more than fourteen years.