Page 187 - 05. Subyek Teknik Mesin - Automobile Mechanical and Electrical Systems Automotive Technology Vehicle Maintenance and Repair (Vehicle Maintenance Repr Nv2) by Tom Denton
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                                                                      Engine systems                               171


























              Figure 2.180       Lambda sensor in the exhaust
























              Figure 2.181       Catalytic converter

























              Figure 2.182       Air temperature control valve

              Oil and fuel vapours are trapped and routed through the engine to be burnt.
            Positive crankcase ventilation and a charcoal fi lter in an evaporative canister are
            used for this purpose ( Fig. 2.183   ). Nitrogen oxide formation is reduced with EGR.
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