Engine valves and valvetrain. Our valve actuation technologies are designed to achieve the highest valvetrain dynamic performance, ensuring low friction losses, and minimal component wear. Our rocker arms, roller rocker arms, hydraulic lifters, and hydraulic lash adjusters maintain precise valve lash and enable low friction,
The valve which allows mixture into the cylinder is the inlet valve; the one through which the spent gases escape is the exhaust valve. They are designed to open and close at precise moments, to allow the engine to run efficiently at all speeds. The operation is controlled by pearshaped lobes,
Valves are mostly made from hardened steel, or more exotic materials such as titanium in high performance engines. When the valve is closed it makes contact with the surface around the perimeter of the valve port. This surface, on which the valve sits, is called the valve seat. The seat must be smooth as it provides a sealing surface, and maximum contact between the valve and seat ensures that the
The main function of an engine valve is to open and close rapidly. This allows the air and fuel charge to enter the combustion chamber and after ignition, the exhaust valve allows the waste gases to flow out into the exhaust system. The engine cant inhale and exhale unless the valve