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RTD UNVEILS FIRST OF 33 BRAND-NEW 'CLEAN-AIR DIESEL' BUSES WITH PARTICULATE TRAPS; NEW TECHNOLOGY HITS STREETS IN APRIL

 RTD UNVEILS FIRST OF 33 BRAND-NEW 'CLEAN-AIR DIESEL' BUSES
 WITH PARTICULATE TRAPS; NEW TECHNOLOGY HITS STREETS IN APRIL
 LOS ANGELES, March 19 /PRNewswire/ -- A milestone in clean-emissions public transportation was reached Thursday, March 19, as RTD unveiled the first 15 of 33 brand-new particulate trap buses scheduled to go into revenue service in April.
 Designated "Clean-Air Diesel," the Flxible (cq) buses will increase the RTD's low-emissions fleet by 50 percent. Manufactured in Ohio, the buses cost $218,695 each, including $21,200 for the particulate trap system. The trap is used to filter carbon particles from engine exhaust.
 "This is a great day for the RTD and for public transit in Los Angeles County," said Marvin Holen, RTD board of directors president. "It means that we are further expanding our clean-air fleet in yet another new direction of technology diversification."
 Since May 1989, with the entry into passenger service of 30 methanol-powered buses, the RTD has operated the largest clean-emissions bus fleet in the world.
 Until today's announcement, the RTD had used particulate traps on 15 converted diesel buses on an experimental basis.
 The RTD also operates 10 buses fueled by compressed natural gas and 12 buses converted to methanol by use of the additive Avocet. "Los Angeles is leading the nation through the RTD's efforts to meet stringent federal and state clean-air emission standards," said Mayor Tom Bradley, who participated in the announcement ceremony at the RTD's central maintenance facility near downtown Los Angeles.
 "RTD has been testing more buses with a wider variety of alternative fuels or clean-emissions equipment than anywhere in the United States. Those efforts will improve the quality of life for all of us in future years by giving us cleaner air," Bradley added.
 The particulate trap system, manufactured in Minneapolis, contains 16 "candles" inside a steel case. The "candles" are wound with ceramic fiber which acts as a filtering medium for carbon particles. When particulate build-up is at the maximum allowable level, a regeneration device burns off the collected matter to carbon dioxide and water.
 "The particulate trap/oxidizer used by the RTD is 80 percent efficient at removing carbon particulate from diesel exhaust," said Alan F. Pegg, RTD general manager.
 "Extensive testing since 1986 indicates that the device will enable diesel engines to meet or exceed the 1991-1994 Environmental Protection Agency Standard," Pegg said.
 Buses in the order for 33 new particulate-trap coaches are still coming off the assembly lines in the Delaware, Ohio, plant of The Flxible Corp., Pegg said. The new buses are equipped at the factory with particulate trap exhaust aftertreatment systems manufactured by Donaldson Co. Inc. of Minneapolis.
 The new buses will go into service in different parts of Los Angeles, Pegg said. The buses, with serial numbers running from 2900 to 2932, are powered by V-6 Detroit Diesel engines with 92 cubic inches per cylinder. Each has 43 passenger seats plus front-door wheelchair lift.
 The RTD has on order 202 additional methanol-powered buses tentatively scheduled to go into service in the fourth quarter of calendar 1992. The manufacturer is Transportation Manufacturing Corp., Roswell, N.M.
 -0- 3/19/982
 /CONTACT: Anthony Greno or Jim Smart of RTD, 213-972-4400/ CO: Southern California Rapid Transit District ST: California IN: SU:


DM-CH -- LA022 -- 9743 03/19/92 13:52 EST
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Date:Mar 19, 1992
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