Hella electric turbo wastegate push

Hella (Hella) at the end of the month , " Technology Exhibition 2013 people and cars ," unveiled a new electric turbocharger wastegate valve. According to reports, the application of this electric exhaust gas turbocharger valve technology can improve their response , precise control of turbo boost pressure is expected to put into use in 2014 .(AUDI TT Quattro turbocharger)

Conventional turbocharger wastegate valve is to provide a vacuum tank ( vacuum ) force in the booster reaches a certain value , the valve opens to relieve pressure push to decrease the work intensity of the turbocharger .( GT1749V turbocharger)

The electric motor exhaust valve is through the use of energy to achieve the opening and closing of valves, mainly by DC motors , levers and bypass valves. Since the temperature of the turbine casing is working reach thousands of degrees, so the motor can not be installed directly on the turbine housing.

Instead, the DC motor is disposed in the compressor housing through long lever inside the turbine wheel to drive the exhaust valve during operation of the heat-resistant temperature of the motor is about 140 ℃. Up to 105 ° rotation angle of the electric motor by controlling the exhaust gas bypass valve, the rotating speed up to 0.45 degrees per millisecond. ( Image source Nikkei Technology Online )( http://www.maxspeedingrods.co.uk/toyota-estima-2-0l-d-4d-1cd-ftv-gt1749v-turbo-turbocharger-721164.html)
Conclusion: Compared with traditional vacuum booster exhaust gas from the bypass valve is concerned, the use of electric motor control valves apparently can improve turbocharger response, but also in the different engine operating conditions, are available through the motors to accurate control of the opening degree of the wastegate valve.

● Natural Gas Vehicles

In addition to fuel cell vehicles, the big car manufacturers are also committed to the development of natural gas is still high threshold car . With the increase of shale gas , natural gas prices decreased. Meanwhile, natural gas, carbon dioxide emissions than gasoline vehicles to be 10% to 20 % less . Natural gas as fuel began emerging concern . Since gas storage is harder than liquid storage , the higher the threshold of natural gas vehicles .


Honda in Thailand in August 2012 launched the car "Civic" natural gas vehicles ,audi quattro turbocharger and its sales in May of this year , accounting for 30% of the amount of Civic sales. Volkswagen also launched in 2013 in Europe natural gas minicar "Eco up!". Visible , major automobile plant development for natural gas vehicles are eager.

The traditional gas tank is iron , technology upgrades after the weight is more widely used lightweight carbon fiber. This led to the rapid development of related industries .
Summary: fuel cell vehicles and natural gas vehicles because the threshold is higher and much easier to create a monopoly in favor of the large automobile manufacturers . But relatively pure electric vehicle charging infrastructure is mature , lighted cell vehicles and hydrogen filling facility NGV natural gas storage technology is still in development bottleneck state. During this transition period , the market may at any time to shift the focus to the flourishing field of pure electric vehicles ,audi s3 1.8 turbocharger this time emerging countries may appear to grasp core technology to catch car factory large car factory situation. It seems that a large car factory to protect their leader , the trend is bound to pay close attention to the future development of the automobile .