Auto Service World
News   August 30, 2007   by Auto Service World

Nissan Takes Innovation Award


Nissan Motor Co., Ltd. today announced that its hydrogen-free diamond-like carbon (DLC) coating has won the Excellence Award in the Products and Technology Development Category of the second Monozukuri Nippon Grand Awards from Japan’s Ministry of Economy, Trade and Industry (METI). The awards ceremony will take place on August 29 at the Shinagawa Prince Hotel, Tokyo.
The award-winning technology is the hydrogen-free DLC valve lifter that delivers improved fuel-efficiency.
Nissan’s DLC coating is a low-friction, highly abrasion-resistant non-crystalline carbon film with diamond-like properties, that does not contain hydrogen in its molecule structure.
It significantly reduces the friction drag under oil lubricated condition.
Nissan began applying the coating to its VQ35HR and VQ25HR valve lifters on the new Skyline and Infiniti G35, reducing friction between the cam and valve lifter by about 40%.
This breakthrough invention also won the Technology Development Award in the 57th Society of Automotive Engineers of Japan Awards, as well as the 2006 Japan Society of Mechanical Engineers Medal for New Technology.


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