Invention Grant
- Patent Title: Variable valve gear for internal combustion engine
- Patent Title (中): 内燃机用可变气门齿轮
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Application No.: US12615853Application Date: 2009-11-10
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Publication No.: US08205585B2Publication Date: 2012-06-26
- Inventor: Hitoshi Toda , Masayuki Takagaki , Satoshi Yoshikawa , Shinichi Murata , Nobuaki Murakami
- Applicant: Hitoshi Toda , Masayuki Takagaki , Satoshi Yoshikawa , Shinichi Murata , Nobuaki Murakami
- Applicant Address: JP Tokyo
- Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
- Current Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Birch Stewart Kolasch & Birch, LLP
- Priority: JP2008-289809 20081112; JP2009-243396 20091022
- Main IPC: F01L1/34
- IPC: F01L1/34

Abstract:
In a variable valve gear for an internal combustion engine provided with a camshaft phase change mechanism for variably controlling opening and closing timings of an intake valve, the camshaft phase change mechanism and a variable valve lift mechanism are controlled so that the closing timing of the intake valve is advanced beyond a predetermined range T1 including a bottom dead center when a load L of the internal combustion engine is less than a first predetermined value L1 and that the closing timing of the intake valve is delayed beyond the predetermined range T1 when the load L of the internal combustion engine is not less than the first predetermined value L1.
Public/Granted literature
- US20100116232A1 VARIABLE VALVE GEAR FOR INTERNAL COMBUSTION ENGINE Public/Granted day:2010-05-13
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