- 1 - EVAP system adsorber
- 2 - From the fuel tank
- 3 - EVAP adsorber purge control valve
- 4 — the Control valve of rarefaction in an adsorber EVAP
- 5 - Air cleaner housing
- 6 - Turbocharger
- 7 - Control valve for additional air inlet
- 8 - Fuel pressure regulator
- 9 - To the brake booster
- 10 - Vacuum control valve
- 11 - Vacuum booster
- 12 - To the pump for detecting leaks
- 13 - Vacuum chamber
- 14 - Vacuum distributor «T»
- 15 - Vacuum control valve
- 16 - E / m valve additional air inlet
- 17 - Crankcase ventilation
- 18 - Vacuum control valve
- 19 - To the leak detection pump
- 20 - Vacuum control valve
- 21 - Turbocharger cooler
- 22 - Throttle valve control module
- 23 - Turbocharger recirculation valve
- 24 - Inlet air duct
- 25 — E/motor of the pump of an additional air intake
- 26 - Power steering switch
- 27 - Throttle valve control module
- 28 - EVAP adsorber purge control valve
- 29 - Charge air pressure sensor
Scheme of connection of vacuum lines. V6 engine
- 1 - Brake booster
- 2 - Vacuum control valve
- 3 - Vacuum chamber (for intake air changeover valve)
- 4 - Vacuum control valve
- 5 - Throttle body
- 6 - Vacuum chamber
- 7 - Air cleaner housing
- 8 - Inlet air duct
- 9 - EVAP system adsorber
- 10 - EVAP adsorber purge control valve
- 11 - Fuel pressure regulator
- 12 - Vacuum distributor «T» to the EGR valve and K/V
- 13 - Vacuum control valve
- 14 - Vacuum distributor «T» to K/V
- 15 - K K / V
- 16 — the Switching valve of an inlet air duct
- 17 - E / EGR vacuum control solenoid valve
- 18 - Sound absorber
- 19 - Control valve EGR
Petrol models
All petrol models must use unleaded petrol only. The engine management system operates in such a way as to get the most out of the engine while minimizing fuel consumption and exhaust emissions. The vapor recovery system prevents fuel vapor from entering the atmosphere from the fuel tank. An exhaust gas recirculation system was installed.
Crankcase ventilation system
To eliminate leakage of unburned hydrocarbons into the atmosphere, the engine is completely sealed. Gases and oil vapors formed in the crankcase enter the intake manifold through a strainer and burn in the cylinders along with the fuel.
Gases are removed from the crankcase due to the pressure difference in the crankcase and inlet pipeline (pressure in the crankcase is higher).
Catalytic converter
To reduce the amount of harmful emissions into the atmosphere on all gasoline models, a three-function catalytic converter is integrated into the exhaust system. The fuel injection control system has feedback, which includes a lambda probe. This sensor, installed in the exhaust system, constantly informs the control unit about the composition of the exhaust gases. Depending on the received data, the control unit corrects the quality of the mixture supplied to the combustion chambers and, thus, optimizes the combustion of the fuel.
A heating element is built into the lambda probe, which is switched on by the control unit through a special relay. The working surface of the lambda probe is sensitive to changes in the oxygen content in gases. Depending on the oxygen concentration, the sensor sends signals of different voltages. If the mixture is too rich - the oxygen content in the exhaust gases is very low, the sensor gives low voltage signals. The voltage increases as the mixture becomes leaner and the oxygen content of the gases increases. The converter works most efficiently with the optimal quality of the combustible mixture (14.7 parts of air to 1 part of fuel). At the optimum concentration of oxygen in the exhaust gases, a jump in voltage occurs on the sensor. This jump is the starting point for the control unit when adjusting the quality of the mixture.
Two sensors are installed. One is before, and the second is after the converter. This achieves a more accurate monitoring of the composition of the exhaust gases.
Exhaust gas recirculation system
The exhaust gas recirculation system helps to reduce the amount of NOx in the exhaust gases. To do this, a small part of the exhaust gases is fed into the intake manifold through a special valve. The valve of the recirculation system is controlled by the control unit.
Evaporative Emission System
Lines of the fuel vapor recovery system. Engine 1.8 l
- 1 - Vacuum control valve
- 2 - EVAP adsorber purge control valve
- 3 — the Final pipeline from the valve of management of a purge of an adsorber EVAP
- 4 — the Final pipeline from the gravitational valve
- 5 - EVAP system adsorber
- 6 — To the pump of definition of leaks
- 7 - Air filter housing
- 8 - Leak detection pump
- 9 — Vacuum hose of an inlet air duct to the pump of definition of leaks
- 10 - Vacuum chamber
- 11 - Control valve
- 12 - Vacuum distributor «T»
- 13 - Throttle valve control module
Lines of the fuel vapor recovery system. V6 engine
- 1 - Throttle actuator control module
- 2 - EVAP adsorber purge control valve
- 3 — the Final pipeline from the valve of management of a purge of an adsorber EVAP
- 4 — the Final pipeline from the gravitational valve
- 5 - EVAP system adsorber
- 6 — Vacuum hose of an inlet air duct to the pump of definition of leaks
- 7 - Air filter housing
- 8 - Leak detection pump
- 9 - Intake air duct vacuum hose to throttle actuator control module
- 10 - Vacuum connection «T»
To reduce the emission of unburned hydrocarbons into the atmosphere, a fuel recovery system is installed on all gasoline models. The filler neck of the fuel tank is hermetically sealed with a lid, a carbon adsorber is installed under the fuel tank. It collects fuel vapors that form in the tank while the car is parked and is stored there until the adsorber purge begins at the signal of the control unit. Then fuel vapors begin to be supplied through the purge valve to the intake manifold, where they mix with the working mixture and then burn out in the usual way in the combustion chambers.
To ensure normal operation of the engine at idle and during warm-up, the control unit keeps the valve closed. This prevents unburned fuel from entering the converter (mixture is too rich at high idle). After the engine warms up, the valve begins to open and close, supplying fuel vapor to the intake tract.
Diesel models
The engine management system operates in such a way as to get the most out of the engine while minimizing fuel consumption and exhaust emissions. To further reduce the toxicity of gases, several additional systems are installed on the car. The crankcase ventilation system reduces the leakage of gases into the atmosphere from the engine lubrication system. The catalytic converter reduces the toxicity of exhaust gases. An exhaust gas recirculation system was installed.
Controlled crankcase ventilation system
To eliminate leakage of unburned hydrocarbons into the atmosphere, the engine is completely sealed. Gases and oil vapors formed in the crankcase enter the intake manifold through a strainer and burn in the cylinders along with the fuel.
Gases are removed from the crankcase due to the pressure difference in the crankcase and inlet pipeline (pressure in the crankcase is higher). All diesel models are equipped with a ventilation valve. It is located on the head cover and controls the flow of gases from the crankcase.
Exhaust gas recirculation system
All diesel models also have an exhaust gas recirculation system. This system reduces the amount of NOx in the exhaust gases. To do this, a small part of the exhaust gases is fed into the intake manifold through a special valve. The valve of the recirculation system is controlled by the control unit.
Visitor comments