发明授权
- 专利标题: Method to control electromechanical valves
- 专利标题(中): 控制机电阀门的方法
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申请号: US09682959申请日: 2001-11-02
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公开(公告)号: US06805079B1公开(公告)日: 2004-10-19
- 发明人: Diana D. Brehob , Eric Warren Curtis , William Francis Stockhausen
- 申请人: Diana D. Brehob , Eric Warren Curtis , William Francis Stockhausen
- 主分类号: F01L904
- IPC分类号: F01L904
摘要:
A system for controlling electromechanical of an internal combustion has a valve-closing electromagnet for attracting the armature coupled to the valve to close the valve, a valve-opening electromagnet for attracting the armature to open the valve, a valve-opening spring for biasing the valve open, and a valve-closing spring for biasing the valve closed. The method includes de-energizing the valve-closing electromagnet for a predetermined time, enabling the valve to oscillate by the valve springs, and then energizing the valve-closing electromagnet to close the valve. Consequently, only the valve-closing electromagnet is energized to open and close the valve. The valve biasing springs force the valve to a location at which the valve-closing electromagnet can close the valve. This provides an electrical energy over prior methods in which both the valve-opening and valve-closing electromagnets are energized to actuate the valve.
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