The valve located within the cylinder head that control the flow of spent gases from the cylinder. The exhaust valves are precisely actuated (opened and closed) by the camshaft, usually through lifters, pushrods, and rockerarms. Exhaust valves must withstand extremely high temperatures (1500 degrees-F or higher) and are made from special steels, e.g., SAE J775 that has excellent strength at high temperatures and good resistance to corrosion and wear.
a valve through which burned gases from a cylinder escape into the exhaust manifold
Valve devices that allow one way air flow in order to prevent protective suits from over-pressurizing. Conversely, they also prevent outside chemicals from entering the suit. Go to top
A movable port which provides an outlet for the cylinder gases in a compressor.
As opposed to the intake valve, this valve opens in the combustion chamber to allow the exhaust gases passage out to the exhaust manifold.