Chapter 3 Ventilation system Section 1 Valve train (4)Camshaft Figure 3.10 495-type diesel engine camshaft 机械电子工程学原一 Automobile and Tractor Northwest A&F UniversityAutomobile and Tractor Northwest A&F University Chapter 3 Ventilation system (4) Camshaft Figure 3.10 495-type diesel engine camshaft Section 1 Valve train