Method of manufacturing cam piece for continuously variable valve duration and cam piece manufactured therefrom

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United States of America Patent

PATENT NO 11441204
APP PUB NO 20200181726A1
SERIAL NO

16600197

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Abstract

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A method of manufacturing a cam piece for a continuously variable valve duration and a cam piece manufactured therefrom, and more particularly, to material and heat treatment conditions of a cam piece, may include manufacturing a cam piece by casting; heating the cam piece; maintaining a heating temperature; and salt-bathing the cam piece, in which the cam piece includes 3.2 to 4.2 wt % of carbon (C), 2.2 to 3.4 wt % of silicon (Si), and the balance iron (Fe), and may have a carbon equivalent value of 4.4 to 4.6.

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Patent Owner(s)

Patent OwnerAddress
KIA MOTORS CORPORATION12 HEOLLEUNG-RO SEOCHO-GU SEOUL 06797
HYUNDAI MOTOR COMPANY12 HEOLLEUNG-RO SEOCHO-GU SEOUL 06797

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Park, Sung-Hwan Suwon-si, KR 35 133

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