发明授权
- 专利标题: Electromagnetic assembly with gas springs for operating a cylinder valve of an internal-combustion engine
- 专利标题(中): 具有用于操作内燃机气缸阀的气弹簧的电磁组件
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申请号: US123987申请日: 1998-07-29
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公开(公告)号: US6076490A公开(公告)日: 2000-06-20
- 发明人: Thomas Esch , Michael Schebitz , Martin Pischinger
- 申请人: Thomas Esch , Michael Schebitz , Martin Pischinger
- 申请人地址: DEX Aachen
- 专利权人: FEV Motorentechnik GmbH & Co.KG
- 当前专利权人: FEV Motorentechnik GmbH & Co.KG
- 当前专利权人地址: DEX Aachen
- 优先权: DEX19733186 19970731
- 主分类号: F01L9/04
- IPC分类号: F01L9/04 ; F02D13/02 ; F16K31/06
摘要:
A combination of a cylinder valve of an internal-combustion engine with an electromagnetic assembly for operating the valve. The electromagnetic assembly includes an electromagnetic actuator having first and second electromagnets supported in a spaced relationship with respect to one another, an armature movable between the first and second electromagnets and connected to the valve for moving it between open and closed positions. The electromagnetic assembly further includes a first control device for energizing the electromagnets to cause a motion of the valve by electromagnetic forces generated by the first and second electromagnets; and first and second pressurizable resetting gas springs operatively coupled to the armature to oppose motions thereof caused by the electromagnetic forces generated by the first and second electromagnets, respectively. A pressure supply device supplies pressure to the first and second resetting gas springs. A second control device controls the pressure supplied to the first and second resetting gas springs.