34.1.2.1. Direct Acting
![../_images/image00524.png](../_images/image00524.png)
Figure 34.4 Direct Acting Valve Train System.
Components of Valve System
Figure 34.5 Components of valve system
Components of Cam Shaft
Figure 34.6 Components of Cam shaft
Coordinate System of Direct-Acting Valve Train system
SPM is a special coordinate system to define the structure of Valve Train system.
Figure 34.7 Special Parametric Marker Structure