The document discusses valve timing and port timing in mechanical engineering, specifically focusing on diagrams that represent the opening and closing of intake and exhaust valves. It notes that the values in these diagrams can vary between different engines. The content is attributed to a student named Shanmuga Sri Vyshnav from the PVKKIT branch of mechanical engineering.

1. PVKKIT
BRANCH:- MECHANICAL
ENGINEERING

2. NAME:-SHANMUGA SRI VYSHNAV
PIN NUMBER:-16386-M-029

3. VALVE TIMING AND PORT TIMING

4. VALVE TIMING

5. • A valve timing diagram is a graphical representation of the
opening and closing of the intake and exhaust valve of
the engine,

6. PV DAIGRAM OF VALVE TIMING

7. • The values in the valve timing diagrams are the typical
values which may take from engine to engine.

8. PORT TIMING

9. PORT TIMING

10. • A port timing diagram is a graphical representation of the
closing and opening of the intake and exhaust valve of
the engine,

11. PV DIAGRAM OF PORT TIMING

12. THANK YOU