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FLINT, Michigan, USA: Delphi Automotive Systems (NYSE: DPH) and Orbital Engine
Corporation announced today they have entered into a co-development agreement to
jointly develop a new gasoline direct-injection technology for automotive engines.

The companies will focus joint development on a spark plug injector that integrates the
spark plug and fuel injector into a single device. The technology will have the benefits of
low-emission, fuel-efficient direct fuel injection without the costs associated with a
significant re-design of the engine.

Dr. Jean Botti, director of Delphi Energy & Chassis Systems' Customer Solution Center,
said, "This exciting new technology will further enhance our leadership in supplying
innovative environmentally responsive technologies to the automotive industry. It has the
capability to produce significant efficiency improvements while requiring only minor
changes to the engines on the road today."

Orbital CEO Kim Schlunke said, "The spark plug injector has been developed by Orbital and
will now be refined for commercial application in conjunction with Delphi. It's an extension
to our core direct fuel-injection activities and will leverage off the supply infrastructure we
have already put in place through our joint venture with Siemens Automotive, Synerject.
This agreement is an acknowledgement of the technology's outstanding commercial

The spark plug injector uses the proprietary air-assisted, direct fuel-injection system
developed by Orbital. Delphi brings its expertise in ignition systems, fuel systems and
overall vehicle subsystem integration, along with its proven record in commercial
application of new automotive technologies to the joint activity. Delphi's primary role is the
design and development of the electrical and spark plug features along with component
integration, while Orbital's primary role is the design and development of the air injector
and combustion system. This direct-injection fuel system will be applied more easily to
future engines because of its unique packaging. It will require only one point of access to
the combustion chamber for both fuel and spark.
(Delphi is the auto parts company spun off by GM and it has done some research on direct injection for General Motors. The thought is, of course, that GM will be adopting the Orbital Engine technology that comes out of this partnership. Orbital Engine ADR's, equal to 8 Australian shares, trade on the NY exchange under the symbol, OE))
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