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Non-Tech : Delphi Automotive Systems (DPH) -- Ignore unavailable to you. Want to Upgrade?

To: JakeStraw who wrote (55)	10/20/1999 10:42:00 AM
From: JakeStraw	Read Replies (1) \| Respond to of 397

Delphi Developing Enhanced HFC-134a A/C System Focuses on Efficiency, Refrigerant Containment TOKYO, Oct. 20 /PRNewswire/ -- While it begins to heighten its research in alternative air conditioning refrigerants, Delphi Automotive Systems (NYSE: DPH - news) continues to develop more efficient climate control solutions that carry with them environmental benefits. Delphi is developing enhanced air conditioning systems based on the use of today's refrigerant, R-134a, a hydrofluorocarbon that allowed elimination of ozone-depleting chlorofluorocarbons earlier in the decade. The enhanced systems meet the environmental initiative of reducing global warming impact through two simultaneously used methods: improving the efficiency of the key componentry that comprise the entire air conditioning loop; and improving the refrigerant containment potential of the system. ''Working these two initiatives together, we will be able to offer all vehicle makers another way to reduce their total greenhouse emissions and thus help them meet their environmental objectives,'' said James Giardino, Delphi chief engineer, advanced thermal systems. ''As the automotive industry moves more fervently towards addressing global warming-linked emissions, we want to -- and will be -- ready to offer them solutions to that end.'' Delphi will offer customers decreased fuel consumption through the integration of more efficient air conditioning components. These components will reflect the evolutionary status of Delphi's technology, using current component design with enhancements and modifications. For example, a more efficient variable displacement clutchless compressor would be highlighted by external electronic controls in such a system. Additionally, a high- performance condenser with integrated receiver/dehydrator would be teamed with other strategies, such as evaporator load minimization and the utilization of an electronic expansion device. ''These types of initiatives -- whether they're requested individually or packaged together -- will be in step with automakers' drive for more mileage out of powertrains that are already much more efficient than the industry average just a few years ago,'' Giardino said. ''Such strategies are applicable to all customers globally, especially those who offer vehicles with large displacements.'' While reducing the energy required to operate the vehicle's air conditioning system, Delphi is working on ways to better contain R-134a within the cooling loop. Part of that approach includes reducing the refrigerant charge levels, targeting a single refrigerant recharge during the vehicle's life. Other approaches to contain R-134a more effectively include the use of better-integrated compressor shaft seals and body o-rings to prevent leakage at strategic parts of the air conditioning loop. ''While we develop alternatives to R-134a and consider their cost- effectiveness and appropriateness in future applications, we must continue to develop more creative ways to reduce fuel consumption and tailpipe emissions with proven, existing technology,'' Giardino said. ''That's what we're offering customers today -- the opportunity to work with them towards environmental goals which we both strongly support.'' Delphi Automotive Systems (NYSE: DPH - news), with headquarters in Troy, Mich., USA, is a world leader in automotive component and systems technology. Delphi's three business sectors -- Dynamics & Propulsion; Safety, Thermal & Electrical Architecture; and Electronics & Mobile Communications -- provide comprehensive product solutions to complex customer needs. Delphi has approximately 201,000 employees and operates 168 wholly owned manufacturing sites, 38 joint ventures, 51 customer centers and sales offices, and 28 technical centers in 37 countries. Regional headquarters are located in Paris, Tokyo and Sao Paulo, Brazil. Delphi can be found on the Internet at delphiauto.com SOURCE: Delphi Automotive Systems