Description

The Valve rocker arm 1122510519 is suitable for the Isuzu Engine Model 6UZ1. The valve rocker arm is an important part of an internal combustion engine valve train system. The Rocker arm assembly transforms the rotational motion of the camshaft into linear motion that opens and closes the engine’s intake and exhaust valves.

Main Functions and Operational Principles:

• The rocker’s arm is an oscillating lever that receives upward motion from a camshaft lobe directly or via a tappet, pushrod, and pivots shaft. The rocker arm pushes down on the valve stem to hold the valve open.
• When the camshaft lobe rolls away from the rocker’s arm, it returns, allowing the valve spring to close the valve, and that mechanical action, along with the timing of the events, manages the input of air-fuel and the expulsion of exhaust gas.
• The rocker’s arm acts as a lever of mechanical advantage, and the rocker ratio is commonly defined to demonstrate this mechanical advantage. The rocker arm will multiply the camshaft lift in order to increase the distance the valve opens, which improves the engine’s ability to breathe and performance.