A turbocharger relief valve to prevent the buildup of too much pressure.
"wastegate is a valve that diverts exhaust gases away from the turbine wheel in a turbocharger. Diversion of exhaust gases causes the turbine to lose speed, which in turn reduces the rotating speed of the compressor which reduces boost pressure in your engine. The primary function of the wastegate is to stabilize boost pressure in turbocharger systems. The wastegate is controlled pneumatically by a wastegate actuator.
a device that bypasses some exhaust flow around the turbine section of a turbocharger to control maximum boost
a device that lets exhaust gas escape bypassing a turbocharger
a device which diverts exhaust flow around the turbochargers impeller blades - reducing boost pressure
a mechanical flapper valve in the turbocharger that opens to allow exhaust gas to sneak around the turbo
a valve that regulates the boost in our cars
Limits maximum boost by allowing some exhaust gas to bypass the turbo, can either be external to the turbo (looks like a BOV) or internal (is a flapper door). Externals generally allow for higher boost levels without "creep" where maximum boost slowly get's higher.
A spring diaphragm that releases excess exhaust gas before it enters the turbine stage of the turbo. The wastegate diaphragm is supplied from the outlet of the turbo via the wategate supply line. The wategate is used to prevent excess boost.
A wastegate is a valve that diverts exhaust gases away from the turbine wheel in a turbocharged engine system. Diversion of exhaust gases causes the turbine to lose speed, which in turn reduces the rotating speed of the compressor. The primary function of the wastegate is to stabilize boost pressure in turbocharger systems, to protect the engine and the turbocharger.