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MAZDA HYDROGEN FUEL TECHNOLOGY PRESENTED AT SAE GATHERING; AUDIENCE TOLD DEVELOPMENTAL H2 MIATA SHOWS PROMISING PERFORMANCE, LOW EMISSIONS

 WASHINGTON, May 10 /PRNewswire/ -- Some of the nation's leading scientists, engineers and senior government officials last week received a briefing from Mazda Motor Corporation on the company's long-term efforts to develop a viable hydrogen-powered automobile.
 Research engineers from Mazda Motor Corporation delivered the presentation at the Society of Automotive Engineers (SAE) government/ industry meeting in Washington. During the briefing the Mazda engineers spoke of the need to focus on cleaner, renewable sources of fuel in the future. They also gave detailed information on how the company has harnessed its revolutionary rotary engine to an innovative metal hydride hydrogen fuel storage system to create a viable automotive powerplant.
 The engineers talked about the hydrogen engine's performance and emissions characteristics, based on the test results of an experimental hydrogen rotary-powered MX-5 Miata Roadster Mazda has developed in Japan.
 The hydrogen-powered Miata has a rear-mounted, metal hydride fuel storage system and is powered by a 13B-type production rotary engine modified for hydrogen combustion. Mazda presently uses the 13B-type rotary in its RX-7 sports car.
 The presentation also disclosed promising information about the emissions characteristics of a hydrogen-fueled vehicle. Hydrogen- powered vehicles emit virtually no CO or hydrocarbons because the fuel is not carbon-based. In addition, hydrogen offers the advantages of good ingniteability and combustion stability when burned in a lean mixture, which can also result in a reduction of NOx emissions.
 Test results from the experimental hydrogen-powered Miata showed that CO, NOx and hydrocarbon emissions can be reduced to extremely low levels.
 "Mazda believes hydrogen will offer one long-term solution for the future," Mazda said in the presentation. "We have researched the hydrogen vehicle for years, and we are convinced that the combination of the hydrogen rotary engine and the metal hydride storage tank can be a practical way to achieve an ideal clean automobile that offers safety and good performance."
 Mazda Motor Corporation is the world leader in the production of vehicles powered by rotary engines. Since the company began commercial production of rotary-powered cars in 1967, it has produced more than 1.7 million of the vehicles for sale worldwide.
 In 1991, Mazda unveiled its first hydrogen-fueled concept vehicle, the HR-X, at the Tokyo Motor Show. The hydrogen-powered Miata is the latest application of the rotary engine and metal hydride storage technologies.
 Additional information and speech reprints are available through the Mazda Information Bureau.
 In addition to the company's efforts in developing a viable hydrogen-powered rotary engine, Mazda is the first company in the world to successfully develop an innovative new Miller-cycle engine for use in production automobiles. The Miller-cycle engine, which uses an entirely different combustion cycle from that of a conventional internal combustion engine, achieves higher fuel efficiency while producing greater torque throughout the rpm range. The Miller-cycle engine will be available in future Mazda products.
 -0- 5/10/93
 /CONTACT: Randolph Boileau of Mazda Information Bureau, 313-393-3315/


CO: Mazda Motor Corporation ST: Michigan, District of Columbia IN: AUT SU:

ML-DH -- DE014 -- 2502 05/10/93 13:24 EDT
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Publication:PR Newswire
Date:May 10, 1993
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