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The elements of the exhaust system
To reduce the emissions of harmful substances into the atmosphere together with the exhaust system, the following emission control:
- The fuel vapor recovery system;
- Crankcase ventilation system;
- Exhaust gas recirculation;
- The catalytic converter. Location of control and reduction of emissions in the engine compartment of cars with engine TED 1 - electronic control unit;
2 - measuring airflow;
3 - a fuel injector;
4 - coolant temperature sensor;
5 - the valve control system of frequency of idling;
6 - the main relay;
7 - the ignition coil unit;
8 - the relay of the fuel pump;
| 9 - crankcase ventilation valve;
10 - the valve of the fuel vapor recovery system;
11 - heated oxygen sensor;
12 - throttle position sensor;
13 - crankshaft position sensor;
14 - the camshaft position sensor;
15 - the temperature sensor in the engine air inlet;
16 - EGR valve |
Location of control and reduction of emissions in the engine compartment of cars with engine BFD 1 - the air filter;
2 - the throttle device;
3 - resonance chamber;
4 - an accelerator cable;
5 - the valve control system idle speed;
6 - the temperature sensor in the engine air inlet;
7 - the fuel injector;
8 - crankcase ventilation valve;
9 - the valve of the fuel vapor recovery system;
10 - diagnostic connector;
| 11 - electronic control unit;
12 - crankshaft position sensor;
13 - the gauge of absolute pressure in the intake manifold;
14 - the coolant temperature sensor;
15 - throttle position sensor;
16 - heated oxygen sensor;
17 - main relay;
18 - the relay of the fuel pump;
19 - the ignition coil unit; |
Location vacuum hoses to control and reduce emissions in the engine compartment of cars with engine TED 1 - Activated charcoal canister;
2 - valve fuel vapor recovery system;
3 - resonance chamber;
4 - throttle device;
| 5 - the air filter;
6 - air inlet;
7 - fresh air intake;
8 - crankcase ventilation valve |
Location vacuum hoses to control and reduce emissions in the engine compartment of cars with engine BFD 1 - Activated charcoal canister;
2 - valve fuel vapor recovery system;
3 - resonance chamber;
4 - throttle device;
| 5 - the air filter;
6 - air inlet;
7 - fresh air intake;
8 - crankcase ventilation valve |
The system EVAP
A system for collecting fuel vapor prevents evaporation of fuel vapors into the atmosphere from the fuel tank, thereby preventing the formation of photochemical smog.
Fuel vapors accumulate in the canister with the activated carbon. When the engine electronic control unit opens the valve and the fuel vapor into the engine where there is their combustion.
A control valve is used to control the pressure of fuel vapors in the fuel tank. The scheme of system EVAP Crankcase ventilation (PCV)
The valve crankcase ventilation system is controlled by vacuum created in the intake manifold during engine operation.
When the engine idling speed, the valve is opened slightly, resulting in a small amount of crankcase gas is diverted into the resonant chamber and further afterburned in the engine cylinders.
With increasing engine speed, opening degree of the valve increases, thereby increasing the amount of crankcase gas is diverted into the resonant chamber and further afterburned in the engine cylinders.
Driving crankcase ventilation (PCV)
Exhaust gas recirculation (EGR)
To reduce the emissions of nitrogen oxides by exhaust gases, the system delivers a small amount of recirculation of exhaust gases into the intake manifold, wherein the post-combustion takes place in the cylinders of the engine and decreases the combustion temperature of the fuel mixture. On vehicles Sephia / Shuma set specially developed new linear valve EGR. This valve performs the function of the solenoid valve and the exhaust gas recirculation control valve. Based on signals from the control valve controls the amount of exhaust gas supplied to the engine by moving core, the position of which is determined by the information received from the throttle position sensor, air flow meter and the coolant temperature sensor. Driving EGR (EGR) The elements of the exhaust system 1 - a reception exhaust pipe;
2 - the catalytic converter;
| 3 - the preliminary muffler;
4 - Main Muffler |
Withdrawal | PERFORMANCE ORDER | | 1. Remove the elements of the exhaust system in the sequence designated in figures in fig. Elements of the exhaust system. | | 2. Visually inspect the state of the elements of the exhaust system and, if necessary, repair or replace them. |
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