Morgan, Lewis & Bockius LLP
Noise reducing structure of speed reduction device for electric CVVT
A noise reducing apparatus of a speed reduction device for electric continuous variable valve timing (CVVT), may include the speed reduction device having an inner tooth portion formed to be faced opposing an external wheel of a ball bearing in an interior diameter surface of a housing that may be integrally formed with a sprocket and rollers arranged through a cage between an inner tooth of the inner tooth portion and the external wheel of the ball bearing, wherein a coating layer may be formed to ease impact in exterior circumference portions of the rollers.
Hyundai Motor Company
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Jiyoun Inwoong Bokyung Seungwoo Hongkil
Seo Lyo Kim Lee Baek