422028 Volvo.Penta Inlet manifold

Engine Operation and the Aftertreatment System
The exhaust gases and hydrocarbon particles from the engine first pass through Diesel Oxidation Catalyst (DOC). Some of the gasses and matter are oxidized as the gasses pass through the DOC. The gasses then pass through the Diesel Particulate Filter (DPF). The DPF collects the soot and any ash that is produced by the combustion in the engine. During regeneration, the soot is converted into a gas and the ash remains in the DPF. The gasses finally pass through the Selective Catalytic Reduction (SCR). Before the gasses pass through the SCR, Diesel Exhaust Fluid (DEF) is injected into the gas stream.The DEF is stored in the DEF tank and is pumped to the DEF injector. The DEF injector is controlled by the ECM. The mixtures of DEF and the exhaust gas pass through the SCR reducing the NOx in the exhaust emissions.The DPF may require the exhaust gas temperature to rise to remove the soot. If necessary, the throttle valve is operated to help in rising the exhaust temperature.The engine software will control the amount of DEF that will be required to keep the exhaust emission compliant.This design of DPF will not require a service maintenance interval. The DPF can be expected to function properly for the useful life of the engine (emissions durability period), as defined by regulation, subject to prescribed maintenance requirements being followed.A fault code will be active for any DPF system-related issue. Follow the troubleshooting guide to rectify the issue.If the DPF loses function, or is tampered with in any way, the check engine lamp, and an amber action (if equipped) will illuminate. A fault code will also annunciate. The lamps and fault code will remain active until the problem is rectified.
The engine and emissions control system shall be operated, used, and maintained in accordance with the instructions provided. Failure to follow the instructions could result in emissions performance that does not meet the requirements applicable to the category of the engine. No deliberate tampering with, or misuse of the engine emissions control system should take place. Prompt action is critical to rectify any incorrect operation, use, or maintenance of the emissions control system.
Carbon Dioxide (CO2) Emissions Statement
Emissions regulations require that the value of the CO2 emissions be reported to the end user.C3.6 Industrial Engine
For engines with a power rating of 56 kW (75.1 hp) and below, 903.75 g/kWh was determined to be the CO2 value during the EU type approval process. For engines with a power rating of 70 kW (93.9 hp) and above, 733.73 g/kWh was determined to be the CO2 value during the EU type approval process. This value was recorded in EU type approval certificate. This CO2 measurement results from testing over a fixed test cycle, under laboratory conditions, with a parent engine representative of the engine family. This value shall not imply or express any guarantee of the performance of a particular engine.C2.8 Industrial Engine
856.35 g/kWh was determined to be the CO2 value during the EU type approval process. This value was recorded in EU type approval certificate. This CO2 measurement results from testing over a fixed test cycle, under laboratory conditions, with a parent engine representative of the engine family. This value shall not imply or express any guarantee of the performance of a particular engine.