Fig. 6.60 a. Location of exhaust gas recirculation system tubes for AHU, ALE engines:
1 - Inlet manifold; 2, 7 - Tubes, black; 3 - Boost pressure control solenoid valve; 4 - Boost pressure control unit; 5 - Tube, blue; 6 - Turbocharger.
Fig. 6.60 b. Location of the exhaust gas recirculation system tubes of the AFN engine:
1 - Air filter; 2 - Boost pressure control unit; 3 - Mechanical exhaust gas recirculation valve; 4 - Exhaust gas recirculation valve; 5 - Boost pressure control solenoid valve; 6, 10 - Bypass valves; 7 - Intake manifold/intercooler vacuum pipe; 8 - To the engine control unit; 9 - To the vacuum tank; 11 - To the vacuum pump; 12 - To the air conditioner.
Fig. 6.61 a. Location of elements of the exhaust gas recirculation system of engines 1Y, AEY, ANV, AKW:
1 - Intake manifold; 2 - Gasket; 3 - Mechanical exhaust gas recirculation valve; 4 - Nut; 5 - Clamp; 6 - Bolt; 7 - Connecting tube; 8 - Exhaust manifold.
Fig. 6.61 b. Location of the elements of the AHU engine exhaust gas recirculation system:
1 - Nut; 2 - Bracket; 3 - Connecting tube; 4 - Bolt; 5, 9 - Gaskets; 6 - Intake manifold; 7 - Mechanical exhaust gas recirculation valve; 8 - Exhaust manifold.
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Fig. 6.61 c. Location of elements of the exhaust gas recirculation system of AFN, ALE engines:
1 - Exhaust gas recirculation valve; 2 - Intake manifold; 3 - Bolt; 4 - Exhaust manifold; 5 - Gaskets; 6 - Connecting tube.
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