1. The pressure relief valve of the turbine
turbo pressure relief valve is an important component in the turbo engine, it can function to protect the engine and the turbine. It can be divided into two kinds of intake and exhaust, as well as the inner row and an outer row of Formula Formula of the points.
wastegate
The following is a popular series of engines used in the turbocharger, wherein the right half is colored suction turbine fresh air is compressed through here, and then through the intercooler again leads to the throttle valve; left dark portion of an exhaust turbine, high temperature exhaust gas from the exhaust manifold out of the drive blades produce up to ten million per minute speed , the power source is a turbocharger.
1, the exhaust discharge pressure relief valve
here is that this right side member, at the intake end of the turbine has a cylinder-shaped means, a lower metal rod connected to the exhaust end of the turbine. This is a kind of pressure relief valves, from the functional classification should belong to the wastegate, there are many Chinese, a bit confusing for the name of this device, anyway, the English general called “Actuator”. You from a lot of the turbine engine found in its presence.
Its working principle is: there is a round hole above the chamber, there should be a rubber tube and the intake pipe in front of the throttle valve in communication, there is a membrane valve and a spring, and the following petal root it is connected to a metal rod, the metal rod and is connected to a lever mechanism of the turbine exhaust end.
We can see from this angle, the lever mechanism controls a bypass valve. See here, we should be able to deduce how it works: the air intake when the pressure is too large, the air pressure will push the membrane, compression spring, so that the metal rod pushing the lever mechanism will bypass valve opens, when the bypass valve is open time, part of the exhaust gas turbine blade without direct access to the exhaust gas header, which reduces the rotational speed of the turbine. The compact design of the most important role is to maintain a certain turbocharged value. In theory, if theExhaust is used to drive a gas turbine blade, then increases as the rotational speed of the turbocharger will rise value, this is likely to cause the turbine to be scrapped. With the “Actuator” will be able to make turbocharger steady work, but unfortunately it’s not the kind of thing very passionate issue of “ci ci” sound when oil revenues.
2 efflux exhaust pressure relief valve
Another wastegate so-called “external discharge”