08. Deutz Common Rail
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(3) Challenges in the Future Answered by Deutz CR New emission legislations -. On-road Euro 4 (10/2005) incl. exhaust aftertreatment. -. Off-road Stage 3 (01/2006 ... 01/2008). Cost reduction -. DEUTZµs Medium Duty FIE (el. UPS) has a cost penalty against the main C&I competitorsµ option for Stage 3 (el. distributor pump). Customer requirements -. Noise reduction ~ 3 dB(A) until 2006. -. Torque increase 10...20 % (low end and max. torque). -. Main customer RVI is ³Common Rail ± minded³.
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(5) . New electronic FIE to be developed for the Medium duty engine families (SOPµs: mid 2005). 2015 FIE (el. UPS) is attractive for the future. 2011, 914: Product concept/strategy under work (SOPµs > 2006).
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(34) YCU 1. Heater (optional). 2. Pressure sensor. 3. MProp. Injector. pm in > 0,5 ÷ 1,0 bar pm ax < 10,5 ÷ 13 bar p System = 300 ÷ 1600 bar p back, m ax < 1,2 bar. Pressure sensor Rail DBV 3. Prefilter with water separator. HP-pump 1. 2. FCU. | |. Supply pump Handprimer. Main filter. Thermostatic valve YCU: Ylectronic Control Unit FCU: Fuel Control Unit DBV: Pressure limiter valve.
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(40) Cross Section of a BOSCH-CRIN 2nd Generation Injector.
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(121) 4. Inlet. 3,5. to PF 45 Outlet. Fuel flow [l/min]. 3 2,5 2 1,5. | |. 1. . Supplier: BOSCH FCU for all DCR systems usable Tested Part from Supplier. 0,5 0 300. 500. 700. 900. 1100. Current [mA]. 1300. 1500.
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(124) Uow Pressure vs. Engine Speed 8. Pressure [bar, absolute]. 7,5 7 6,5 6 5,5 5 4,5. | |. 4 0. 500. 1000. 1500. Yngine speed [rpm]. 2000. 2500. 3000.
(125) ' . Specifications:. | |. pgegen [bar] nMotor [1/min] Q [U/min] 3 100 0,333 10 1000 1,83 10 2300 2,92. %|
(126) Suction pressure: p = 0,5 ± 1.0 bar abs.
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