waste gate


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waste gate

A controllable butterfly valve in the exhaust pipe of a reciprocating engine equipped with a turbocharger. The valve controls the amount of exhaust gases that can be forced through the turbocharger. The valve gradually closes with height until it is rated at full-throttle or another selected value is reached when it is fully closed. At this time, all exhaust gases must pass through the turbocharger. See also butterfly valve.
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References in periodicals archive ?
The waste gate position has not been modified with respect to the base cases whereas minor adjustments have been performed on the throttle position and on the SA.
Rejected copies are counted at a waste gate. A BEK system treats wash water.
In Altitude, lack of air availability & combustion energy passes by mechanical waste gate, lead to lower boost at partial load in waste gate region; which in turn leads to poor engine performance & fuel efficiency and higher turbo speed.
The Lycoming [IE.sup.2] we covered in the August issue has an electric prop governor, an electric waste gate and electrical fueling.
An exhaust gas waste gate valve and a charge air by-pass valve are installed, thus enabling stepless control of the combustion air supply to the engine.
"It's no longer a turbocharger with a bypass valve or a waste gate," says Crane, "it's a variable-nozzle or a variable-geometry turbocharger.
More noticeable, though, is the turbocharger's waste gate dumping boost pressure when you back off the accelerator.
A cold air dump valve is used on engines that do not have access to install a waste gate valve.
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