Title:
駆動カム、その製造方法、及びエンジンの動弁装置
Document Type and Number:
Japanese Patent JP5898092
Kind Code:
B2
Abstract:
Provided are a drive cam having an improved wear resistant sliding surface that gives the drive cam enhanced durability and a valve operating system in an engine with such a drive cam. The drive cam 13a of the present invention, made of a nitriding steel, has on its sliding surface, a hardened surface formed by nitrocarburizing wherein the hardened layer lies on top of the sliding surface. It is preferred that the driven mechanism 33 used in combination with the drive cam 13a has, in its sliding surface against which the drive cam slides, a chrome-plated layer and thereon a diamond-like carbon coating.
Inventors:
Aki Kodai
Satoshi Ichi
Kozo Sunano
Satoshi Ichi
Kozo Sunano
Application Number:
JP2012548633A
Publication Date:
April 06, 2016
Filing Date:
December 06, 2011
Export Citation:
Assignee:
Kawasaki Heavy Industries, Ltd.
International Classes:
F01L1/04; F01L13/00
Domestic Patent References:
| JPS63167004A | 1988-07-11 | |||
| JPH1112685A | 1999-01-19 | |||
| JP2009209711A | 2009-09-17 | |||
| JPH05239647A | 1993-09-17 | |||
| JP2010156247A | 2010-07-15 | |||
| JPH03173762A | 1991-07-29 |
Foreign References:
| WO2004081252A1 | 2004-09-23 | |||
| WO2005021816A1 | 2005-03-10 |
Attorney, Agent or Firm:
Patent business corporation Yuko patent office
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