Waste gate

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a gate by which the superfluous water of a reservoir, or the like, is discharged.

See also: Waste

References in periodicals archive ?
The 915 uses a similar engine control unit as the 912, but it was obviously tweaked to include a turbocharger wastegate controller and an automatic prop control.
There is the tinny moan from the engine itself, which transforms into an angry roar when the turbo comes into play, after which the wastegate whines and sniffs a few times before the dump valve sneezes and chuffs on lift-off.
Closely controlling the flow of exhaust gases through the turbocharger, an electronically-controlled wastegate actuator maintains turbocharger boost pressure.
As for the powertrain, for the first time among mini-vehicles(6), i-VTEC was adopted for a naturally-aspirated engine and an electric wastegate was applied to a turbo engine.
Auto Business News-July 14, 2017--Honda Car to equip new 1-litre turbo petrol engine with BorgWarner's Compact Wastegate Turbocharger
Despite running only low boost wastegate pressure on his Impreza (about 600bhp), Andy recorded the fastest time of the day at just over 52 seconds.
The increase in performance was achieved with the help of new turbochargers with modified compressor machining, smaller wastegate aneroid capsule and sharpened engine mapping.
5-litre EcoBoost engine improvements include a new twin direct and port-fuel injection strategy, stronger and lighter crank and valvetrain components, a redesigned twin-turbocharger system with electronic wastegate, and a redesigned valvetrain and variable-displacement oil pump.
This increased degree of freedom provides the opportunity to improve emissions, fuel consumption and/or peak torque, while the increased number of actuators, such as External Exhaust Gas Recirculation (EGR), Twin Independent Variable Valve Timing (TiVCT), wastegate, fuel rail pressure, various fuel injection modes, increases the required mapping and calibration time exponentially.
Engines exhaust systems must have a single tailpipe for the turbine and either one or two tailpipes for the wastegate.
These pressure signals are supplied to the PWM valve, which then sends a pulse-width modulated signal to the wastegate bypass regulator valve.