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Therefore, in many applications with exhaust-gas treatment systems, one NOx sensor is used upstream of the exhaust-gas treatment system (upstream) and a second sensor is used downstream of the exhaust-gas treatment system. The upstream sensor is used for the aforementioned feedback loop. Meanwhile, the downstream sensor is used mainly to ...
High Pressure Oil System – With the use of split-shot HEUI fuel injectors, high-pressure oil is required to pressurize the fuel injectors. The main high-pressure oil (HPO) system components are the high-pressure oil pump (HPOP), HPO manifolds, stand pipes, and branch tube. The HPOP is located in the engine valley at the rear of the engine block.
A NO x adsorber is designed to reduce oxides of nitrogen emitted in the exhaust gas of a lean burn internal combustion engine.Lean burn engines, particularly diesels, present a special challenge to emission control system designers because of the relatively high levels of O 2 (atmospheric oxygen) in the exhaust gas.
DPR is a diesel particulate filtration system with regeneration process that uses late fuel injection to control exhaust temperature to burn off soot. [12] [13] Diesel engines manufactured after January 1, 2010 are required to meet lowered NOx standards for the US market.
The L5P Duramax is the latest version of the Duramax V8 diesel engine.(engine code Y). Introduced in the 2017 model year, it was the most powerful diesel engine GM had produced, with 445 hp (332 kW) at 2,800 rpm and 910 lb⋅ft (1,234 N⋅m) at 1,600 rpm.
Petrol engine : Catalyst, Primary oxygen sensor, Evaporating system, EGR system, VVT system, Secondary air system, and Secondary oxygen sensor; Diesel engine : NMHC catalyst, NOx reduction catalyst, NOx absorber Particulate matter filter, Exhaust gas sensor, EGR system, VVT system, Boost pressure control, Fuel system.
fuel system & engine management Bosch CIS continuous single-point fuel injection system, with or without knock control and electronic timing advance multi-point electronic indirect fuel injection with four intake manifold-sited fuel injectors; Magneti Marelli, Bosch Motronic or Digifant electronic injection Total Flex, Gasoline or Ethanol (BR)
Selective non-catalytic reduction (SNCR) is a method to lessen nitrogen oxide emissions in conventional power plants that burn biomass, waste and coal.The process involves injecting either ammonia or urea into the firebox of the boiler at a location where the flue gas is between 1,400 and 2,000 °F (760 and 1,090 °C) to react with the nitrogen oxides formed in the combustion process.