Blow Off valves in use
used a Blow Off Valve, because in petrol or diesel engines, the frictional resistance of the compressed air is too large at closed throttle and has a braking effect. The increasing friction of the compressed air could destroy the so-called turbocharger. With conventional bypass valves of the boost pressure is irregular after changing gears.
Blow Off Ventile: State Of The Art
The Blow Off Valve can from the air column built up and reduces friction and friction-induced overheating. If the motor draws no warm air, it is more efficient. The vehicle speaks after completed switching curtain better to the pressure on the accelerator pedal. Almost all engines with turbochargers have today a Blow Off air valve. But it can also be retrofitted.
Blow Off valves and their functioning
The Blow Off the drain valve function is to let escape during driving operation resulting compressed air. This is ensured by two types of valve substantially. The air valve can operate both a piston and a membrane. The piston-operated valve is considered better, but is prone to errors by its technology. The membrane of the cheapest diaphragm valves is susceptible to cracks.
From Blow Off valves exist verscheiden species
In addition to these two classical Blow Off valves is still an electronically controlled valve is known which is not operated by the compressed air. Here opens and closes a control device or an electrical circuit, the valve as required. Makes the difference is not the pressure of the circulating air. The typical hissing sound that is known of buses and trucks, indicates that the valve is operated.