Answer :
Final answer:
A rocker arm assembly is a key part of the valvetrain in an internal combustion engine. It consists of rocker arms, pushrods, lifters or tappets, valve springs, and other components. It is responsible for transmitting motion from the camshaft to the valves.
Explanation:
A rocker arm assembly is part of the valvetrain in an internal combustion engine. It is responsible for transmitting the motion of the camshaft to the engine valves, allowing them to open and close.
The rocker arm assembly consists of several key components:
- Rocker arms: These are the main components of the assembly and are responsible for transferring motion from the camshaft to the valves.
- Pushrods: These connect the rocker arms to the lifters or tappets.
- Lifters or tappets: These are hydraulic or solid components that transfer motion from the pushrods to the rocker arms.
- Valve springs: These keep the valves closed when not in use and help return them to their closed position after opening.
- Other components: Depending on the design, additional components such as rocker shafts, adjusters, and support brackets may be present.
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