U.S. Environmental Protection Agency, 26 W. Martin Luther King Dr., Cincinnati, OH 45268

66 -- DIRECT-INJECTION COMMON-RAIL ALTERNATIVE FUEL SYSTEMS SOL 99-06 POC Angela Thompson (513/487-2005) WEB: Office of Acquisition Management-Cincinnati Contracts, http://www.epa.gov/oam/cinn_cmd. E-MAIL: U.S. EPA -- Cincinnati Contracts Management Division, thompson.angela@epamail.epa.gov. The U.S. Environmental Protection Agency's Office of Mobile Sources (OMS) in Ann Arbor, Michigan, is seeking to obtain four (4) complete sets of direct-injection common-rail alternative fuel systems. Each system consists of four (4) electronically controlled hydraulically actuated injectors, driver box, hydraulic manifolds, and mounting hardware. The fuel system shall include the following features: The injector must be electronically controlled and hydraulically actuated, which enables EPA to integrate the fuel system with the hydraulic valve actuation camless engine. Each injector is complete and self-contained with nozzle, hydraulic intensifier, and electronic digital valve. The intensifier plunger shall be coated to allow for alcohol fuel use. The digital valve consists of a spool, two electromagnetic coils, and valve housing, and must be capable of consistently controlling specific rate of injection characteristics up to five (5) injection events. The valve must electronically control the start, duration, and rate of injection of multiple injection events, meets the 10-20 microseconds shot-to-shot and the 30-40 microseconds injector-to-injector required by the engine industry (nominal), utilizes magnetic latching technology for fast response, and possesses position sensing. Both the static and dynamic pressure balance of the digital valve contribute to high-speed operation. The injector employs local alcohol fuel pressure intensification up to 20,000 psi. Fuel is provided to the injector at approximately 50 psi. Fuel metering can be varied by the control of the digital valve pulse width and hydraulic supply pressure between 1000 psi -- 3000 psi. Duration and corresponding fuel delivery of the pilot event can be controlled from a minimum fuel quantity of 4-9 mm3 at pulse width of 0.5 -- 1.0 millisecond, up to that of the full capacity of the injector of 80-110 mm3 at 2.0 -- 2.5 milliseconds with a standard deviation of 0.3 mm3. Response time of the digital valve shall be within 0.2 -- 0.3 milliseconds for electronic control of the pilot timing, duration, dwell, and main injections. Hydraulic connections to the injectors are external using high pressure, positive seal fitting. Injectors will be configured to fit a commercial VW 1.9L TDI 4-cylinder engine. The driver shall have the following features: connection to 12-15 VDC, 30-amp power supply; four (4) independent fuel delivery control signals, one for each cylinder of a 4-cylinder engine; TTL (Transistor- Transistor Logic) signal compatible optically isolated inputs; up to five (5) programmable injection events per fuel delivery control signal input; analog (0-5 volt) rail pressure set point output; serial communications to allow injection control information to be up-loaded from and down-loaded to the driver; windows 95/98 applications software to exercise the driver; connect BNC connectors to pulse generator or engine control module and connect to injectors with cable provided. The hydraulic manifold feeds a pair of unit injectors. Each setof mounting hardware includes a mounting clamp, screw, spacer, and washer. The contractor shall be responsible for the engineering precision machining, assembly, and testing of the completed fuel injection systems. Bench testing and complete calibration of the injectors shall be included. The contractor shall supply one (1) set of manuals for each system including: layouts, engineering interface drawings, and driver parameters. For the complete fuel systems, the contractor shall provide ninety (90) days warranty on all parts, labor, and materials. This is a small business set-aside. This procurement will be processed using full and open competition under FAR Part 13 (simplified acquisition procedures). The SIC is 3826. It is anticipated that request for quotations shall be issued 15 calendar days after the date this announcement is posted in the CBD. All interested parties should submit a request to Angela Thompson, using the following methods: 1) In writing to the above address, 2) by fax (513/487-2107) or by E-mail (thompson.angela@epamail.epa.gov) referencing solicitation RFQ-OH-98-06. TELEPHONE REQUESTS SHALL NOT BE HONORED. Posted 04/14/99 (W-SN320015). (0104)

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