Invention Grant
US07673603B2 Valve timing control device and engine device and vehicle including the same
有权
气门正时控制装置和包括它的发动机装置和车辆
- Patent Title: Valve timing control device and engine device and vehicle including the same
- Patent Title (中): 气门正时控制装置和包括它的发动机装置和车辆
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Application No.: US11721900Application Date: 2005-12-07
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Publication No.: US07673603B2Publication Date: 2010-03-09
- Inventor: Minoru Yamamoto , Yoshitaka Nagai
- Applicant: Minoru Yamamoto , Yoshitaka Nagai
- Applicant Address: JP Shizuoka
- Assignee: Yamaha Hatsudoki Kabushiki Kaisha
- Current Assignee: Yamaha Hatsudoki Kabushiki Kaisha
- Current Assignee Address: JP Shizuoka
- Agency: Keating & Bennett, LLP
- Priority: JP2004-365550 20041217
- International Application: PCT/JP2005/022483 WO 20051207
- International Announcement: WO2006/064706 WO 20060622
- Main IPC: F01L1/34
- IPC: F01L1/34
Abstract:
When an engine operates at low engine speed, the tip end of a cam nose of an intake cam is at a second position. As the engine speed increases and exceeds a first engine speed, the tip end of the cam nose of the intake cam moves to a first position. When the engine operates at high engine speed, the tip end of the cam nose of the intake cam is at the first position. As the engine speed decreases and becomes lower than a second engine speed smaller than the first engine speed, the tip end of the cam nose of the intake cam moves to the second position different from the first position.
Public/Granted literature
- US20090250024A1 VALVE TIMING CONTROL DEVICE AND ENGINE DEVICE AND VEHICLE INCLUDING THE SAME Public/Granted day:2009-10-08
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