Wastegate Valves / Actuators

The waste gate valve was created to make the turbo run faster at low revs with a small size turbine housing, without reaching too high pressures at high rpm. In fact, a small turbine housing allows the turbo to spin sharply from the lower engine revs. Obviously when the engine expels a considerable amount of gas at the top, the narrow turbine housing becomes a bottleneck that prevents the engine from going up and down and at the same time, it makes the shaft wheel to rotate too hard. The problem is solved by providing the turbine housing with the waste gate valve, controlled by an actuator. The actuator feels the supercharging pressure through a tube connected to the compressor housing and it moves the waste gate plate opening an air inlet before the compressor wheel.

The gases and the power generated are sent directly to the evacuation so they are not released to the

The complete central body, also called “cartridge” or “coreassy” represents the central unit of the turbocharger. It is the moving part where the components interact dynamically taking energy from the exhaust gases and then transforming them into a rotation movement which will be used to suck and compress air inside the engine. All that increase the capacity of the power engine. Apparently, it seems a simple component but in the reality, it is incredibly sophisticated and complex. The most important features of a cartridge are those that can not be correctly perceived and evaluated by eye. The most important are the quality of the work surfaces, the materials, the construction and heat treatments tolerances. Until the cartridges were only original (genuine) there was no doubt about their quality but today there are many non-original products in the market whose quality is often unknown. The cartridges of the present-day turbochargers seem equal to those of the

The turbocharger is one of the most ingenious inventions in the automotive industry, able to harness a large quantity of energy that otherwise would be dissipated without any advantages. The heat engines (thermal engines) fascinate the man thanks to their powerful expression of energy but unfortunately take advantage of a small percentage converted into mechanical movement, while a considerable amount of thermal and kinetic energy is released into the environment without producing any type of useful work. The turbocharger placement in the exhaust system allows to recover a good part of the energy contained in the gases expelled following the explosion. This energy is then used to rotate the shaft wheel fitted with the compressor wheel which is able to suck air from the environment and to compress it inside the powder chamber. The increase of the air mass and therefore of the oxygen allows to burn a higher quantity of fuel which permit to