Chapter 3 Ventilation system Section 1 Valve train (1)Valve (a) (b) (e) Figure 3.4 Valve head construction type Figure 3.5 Valve cone angle (a)flat heads (b)horn heads 机被寿电子工程原二 Automobile and Tractor Northwest A&F University
Automobile and Tractor Northwest A&F University Chapter 3 Ventilation system (1) Valve Figure 3.4 Valve head construction type (a) flat heads (b) horn heads Figure 3.5 Valve cone angle Section 1 Valve train
Chapter 3 Ventilation system Section 1 Valve train (2)Valve seat (3)Valve guide (4)Valve spring a) (b) Figure 3.6 Spring seat fixed form (a)cotter form (b)lockpin form Figure 3.7 Valve guide pipe and valve seat 业机械电子工程学膜 Automobile and Tractor Northwest A&F University
Automobile and Tractor Northwest A&F University Chapter 3 Ventilation system (2) Valve seat (3) Valve guide (4) Valve spring Figure 3.6 Spring seat fixed form （a） cotter form （b） lockpin form Figure 3.7 Valve guide pipe and valve seat Section 1 Valve train
Chapter 3 Ventilation system Section 1 Valve train 2.2 Valve transmission group tappet、push rod、rocker、camshaft、timing gear et al. (1)Tappet ~3 mm -3 mm (a) (b) Figure 3.8 Tappet automatic rotational structure 业机械持电子工程度 Automobile and Tractor Northwest A&F University
Automobile and Tractor Northwest A&F University Chapter 3 Ventilation system 2.2 Valve transmission group tappet 、 push rod 、 rocker 、 camshaft 、 timing gear et al. (1) Tappet Figure 3.8 Tappet automatic rotational structure Section 1 Valve train
Chapter 3 Ventilation system Section 1 Valve train (2)Push rod (3)Rocker 4 5 业电子工程学度 Automobile and Tractor Northwest A&F University
Automobile and Tractor Northwest A&F University Chapter 3 Ventilation system (3) Rocker (2) Push rod Section 1 Valve train