Invention Application
- Patent Title: Rocker arm and manufacturing method thereof
- Patent Title (中): 摇臂及其制造方法
-
Application No.: US10602775Application Date: 2003-06-25
-
Publication No.: US20040000278A1Publication Date: 2004-01-01
- Inventor: Nobutsuna Motohashi
- Priority: JPP.2002-185578 20020626
- Main IPC: F01L001/18
- IPC: F01L001/18
Abstract:
A gap (34) for forming an excess thickness portion is provided between a pair of first dies (26, 27) and a intermediate portion (32) of the second die (24), and an excess thickness portion (35) is formed in bottom portions of the valve guide walls (28, 29) of valve guide walls.
Public/Granted literature
- US06889643B2 Rocker arm and manufacturing method thereof Public/Granted day:2005-05-10
Information query
