exhaust valve


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Related to exhaust valve: intake valve

exhaust valve

[ig′zȯst ‚valv]
(mechanical engineering)
The valve on a cylinder in an internal combustion engine which controls the discharge of spent gas.
References in periodicals archive ?
The flow velocity increased rapidly in a short period right after the exhaust valve opening at 491[degrees]CA.
Developed in this study is the alloy having a hot formability in addition to a high strength, high creep resistance and oxidation resistance at high temperatures necessary for exhaust valves with a minimum use of expensive additives.
7) The exhaust valve closing is optimal at high value at all engine speeds.
Burned exhaust valves have long been a leading cause of cylinder failures and power loss in piston aircraft engines.
Instantaneous vibration waveforms during 10 work cycles of the engine in good technical condition and with the defective exhaust valve are shown in Fig.
Without ceramic inserts, exhaust valve recession would require three cylinder head replacements over the life of the engine.
During this exchange, the exhaust valve motion is temporarily overridden by the brake cam lobe, leaving the HLA temporarily unloaded during breaking events (Figure: 3a).
The factor is a function of the exhaust valve lift and its profile can be found in figure 20.
He noted that the rotator cap that sits on the top of the exhaust valve stem--between the rocker arm and valve--and rotates the exhaust valve a fraction of a degree every time the valve opens and closes, causing about a one RPM rate of rotation of the valve.
40 mm, can operate on gasoline, liquid propane and natural gas and it incorporates induction hardened exhaust valve seats, hydraulic roller lifters and one piece rear seals.
Furthermore, a 12-inch steam exhaust valve is used for quick exhaustion of the steam.
The usual solution for the exhaust valve is to provide a rigid valve plate, containing the movable valve, at the other extreme of the piston's travel.