Catalytic converters, Particulate Filters, Traps & Adsorbers, Substrates, Catalytic coatings etc. are used based on different engine technologies, applications, operating conditions, precious materials etc.
The details of emission control technology are broadly divided into:
EVAP
An "evaporative emissions control system" (EVAP) is a system in a vehicle's fuel system designed to prevent gasoline vapors from escaping into the atmosphere
Temperature Sensor
A temperature sensor gathers data concerning the temperature from a source and converts it to a form that can be understood either by an observer or another device.
Oxygen Sensor
The oxygen sensor is the basis of the closed-loop control system on a spark-ignited Stoichiometric - engine; however, it is also used for diagnostics.
NOx Sensor
NOx sensor is typically a high-temperature device built to detect nitrogen oxides in exhaust system environment of automobile. The sensors can be incorporated upstream and downstream of the catalyst, for example, to provide a feedback control loop to the Engine Control Unit (ECU) of the exhaust emission system.
Oxygen Sensors
Located in the exhaust system, these measure the amount of oxygen in the exhaust gases, allowing the engine control unit (ECU) to adjust the air-fuel ratio for efficient combustion and minimal emissions.
Mass Airflow Sensors (MAF)
Measures the amount of air entering the engine, providing crucial information for the ECU to determine the correct fuel injection amount.
Exhaust Gas Temperature (EGT) Sensors
Monitor the temperature of the exhaust gases, important for managing engine efficiency and preventing excessive heat.
Pressure Sensors
Monitor pressure levels in various parts of the engine and exhaust system, including within the EGR system, to ensure proper operation.
Throttle Position Sensors (TPS)
Detect the position of the throttle plate, allowing the ECU to adjust fuel injection and ignition timing based on driver input.
NOx Sensors
Measure the level of nitrogen oxides (NOx) in the exhaust, crucial for optimizing emissions control systems in diesel engines.
EGR Valve Position Sensors
Monitor the position of the EGR valve, which recirculates exhaust gases back into the combustion chamber to reduce NOx emissions.
Evaporative Emission Canister Sensors
Monitor fuel vapors from the fuel tank to ensure proper capture within the canister.
Thermal Management
The rate at which the catalyst heats up is an important factor in the control of the start-up emissions of an engine. The beneficial impact on reducing cold start emissions via thermal management
Three-way Catalyst
A three-way catalyst (TWC) is an essential component in modern vehicle exhaust systems fitted with SI engines; such as gasoline, CNG, ethanol blend engines; designed to reduce harmful substances before they are released into the atmosphere from the tail-pipe.
Diesel Oxidation Catalyst (DOC)
A Diesel Oxidation Catalyst (DOC) is used in diesel engines to reduce harmful pollutants in the exhaust gas primarily HC and CO.
Lean NOx Trap (LNT)
A lean NOx trap (LNT) is a device that reduces nitrogen oxide (NOx) emissions from a lean burn internal combustion engine.
What is SCR?
Selective Catalytic Reduction (SCR) is an advanced emission control technology used primarily to reduce nitrogen oxides (NOx) from diesel engine exhaust.
Injection of Urea solution – AdBlue in SCR system
AdBlue is a crucial component in the Selective Catalytic Reduction (SCR) system, a technology widely used in diesel engines to reduce harmful nitrogen oxide (NO?) emissions.
Catalysed Diesel Particulate Filter (C-DPF)
Diesel engines produce soot, which is made up of tiny particles, and these particles can be harmful to human health and the environment if not properly filtered.
HC-SCR (Hydrocarbon Selective Catalytic Reduction)
HC-SCR is a technology designed to reduce primarily Nitrogen Oxides (NOx) emissions from internal combustion engines (specially diesel engines).
Gasoline Particle Filter (GPF)
A Gasoline Particulate Filter (GPF) is a device used in the exhaust system of gasoline-powered vehicles to reduce particulate matter (PM) emissions.
Mr. Neelkanth Marathe