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29 September 2009
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Mazda will launch its next-generation of engines and automatic transmissions at next month’s Tokyo motor display .
The Japanese firm will exhibit its Mazda SKY-G direct-injection petrol engine, its Mazda SKY-D clean diesel engine and the Mazda SKY Drive high-efficiency automatic transmission. It will also display off its Kiyora concept car in its home country for the first time.
See the hi-res Mazda Kiyora concept car picture gallery
The Mazda SKY-G is a direct-injection petrol engine with significantly improved fuel economy and power outplace due to enhanced thermal efficiency. It has been designed to reduce mechanical friction and achieve an optimal air-fuel mix, with fuel economy and torque improved by approximately 15 per cent compared to Mazda’s current 2.0-litre engine.
This equates to the fuel economy seen in a Mazda 2 to be achieved by a Mazda 3.
The Mazda SKY-D engine reduces mechanical friction to the level of a petrol engine. By employing piezo injectors, a two-stage turbocharger and other technologies, fuel economy beapproach s around 20 per cent better than the current 2.2-litre diesel engine. This equates to fuel economy of the Mazda 2 being achieved in the Mazda 6.
Mazda’s SKY-Drive automatic transmission offers improved feel and fuel consumption. It improves fuel economy by five per cent, due to a complete redesign that significantly reduces mechanical friction, a revised torque converter and clutch with minimised slip, and an optimised lock-up mechanism. These changes give it the feel of a dual-clutch transmission.
The Mazda Kiyora concept car was first seen at the Paris motor display last year and it will be seen for the first time in Japan next month. It race s on Mazda’s SKY-G engine mated to the SKY-Drive ‘box and can return around 90mpg. It achieves this by using lightweight materials, improved aerodynamics and Mazda’s i-cease cease /start system.
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