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  • DCEC Engine Meet Tier 4 Standrad

    You are here: Home » News » News & Events » DCEC Engine Meet Tier 4 Standrad

    On the first day of the United States of CONEXPO-CON/AGG, engine took the lead Introducing meet European and American fourth stage the final version of the off-highway emission standards (EPA Tier 4 Final / EU Stage IV) of the QSL Series 9 liters and 15 liters QSX Series, 11.9 liter engine are using a new generation of ultra-clean engine aftertreatment systems (Ultra-Clean Aftertreatment System), its performance continues to rise, excellent fuel economy even more, to reach nearly 2014 the implementation of “zero emissions” ultra-low emission standards. When the host device in the appropriate range of duty cycles and optimized operation, the engine Tier 4 Final final stage of the engine’s fuel economy and Tier 4 Interim transitional phase can be improved compared to 2% -4%, while Tier 3 and Tier 4 Interim stage than fuel economy can be increased by 5%. QSL Tier 4 Final in to further enhance fuel economy while maintaining a Tier 4 Interim phase of the performance benefits of dynamic excellence, fast response; engine used ultra-clean post-processing system that combines a compact catalytic converter engine and selective catalytic reduction technology (CCC-SCR), for 75-400 hp (56-298 kW) engine emissions upgrades, including engine QSB series 3.3 liters, 4.5 liters and 6.7 liter engine. engine Tier 4 Final final stage QSX15, QSX11.9 heavy-duty electric motor, power has greatly enhanced the efficiency higher. QSX11.9 to 525 hp (392 kW), or power of 44 horsepower (33 kilowatts); QSX15 by the Tier 4 transition of 600 horsepower (447 kW) upgraded to 675 hp (503 kW), or power of 45 hp (34 kW) ; with engine particulate filter and selective catalytic reduction technology (CPF-SCR) a combination of ultra-clean post-processing system, reducing emissions while achieving power-up. engine QSX engine series uses a single turbocharger variable geometry (VGTTM), avoiding the twin-turbo complexity; DC air filter (Direct FlowTM), which can effectively save installation space, the replacement cycle longer. engine CPF-SCR after-treatment system, ultra-clean, the engine emission treatment technology to new high, breaking the emissions and power between these two performance bottlenecks restricting the technology, reducing emissions while achieving power-up. In the post-processing and optimization of the synergistic effect of the combustion cylinder, through the use of cooled exhaust gas recirculation (Cooled EGR) and high pressure common rail fuel system (XPI), precise control of emissions while the engine ECM electronic control module for the entire drainage system monitoring. engien SCR SCR technology in the accumulated experience. Since 2005, engine-highway engines pioneered SCR technology in North America to date more than 75,000 units have been equipped with SCR to achieve the EPA2010 highway engines with Tier 4 Final considerable “zero emissions” limit. engine Tier 4 Final SCR technology used is based on the Interim upgrades will with copper – coated zeolite catalyst placed in the exhaust stream, up to 95% of the conversion of nitrogen oxides decomposition, low temperature conversion efficiency of more high, the use of more advanced sensors for closed loop control, diesel exhaust treatment fluid (DEF) mix more spray level. CPF QSX Tier 4 Final Series uses the engine particulate filter (CPF), the same with the Interim transitional phase, with diesel oxidation catalysts and the wall filter. When the heavy-duty engine in a high load and high power output state, can effectively reduce particulate emissions and improve combustion efficiency cylinder to increase or power, lower fuel consumption. Common role in the SCR, CPF can be active regeneration probability down to 1% of the working length, the equivalent of full passive regeneration, to more effectively reduce particulate emissions. engine has a unique advantage of system integration to meet the 2014 Tier 4 Final emission standards for the design and manufacture of critical engine subsystems, from intake to discharge the whole process of post-processing to achieve process optimization. Integrated use of resources and highly integrated system control means to optimize the engine cylinder combustion process, making it more clean and efficient. 2014 implementation of the Tier 4 Final Tier 3 emission standards and compared to the standard, particulate matter (PM) and nitrogen oxides (NOx) were reduced by 90%, limit of 0.02 grams per kilowatt-hour of particulate matter, nitrogen oxides 0.4 grams per kilowatt time.

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