发明授权
- 专利标题: Fuel injection valve for internal combustion engines
- 专利标题(中): 内燃机燃油喷射阀
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申请号: US09555414申请日: 2000-09-20
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公开(公告)号: US06305359B1公开(公告)日: 2001-10-23
- 发明人: Maximilian Kronberger , Herbert Strahberger
- 申请人: Maximilian Kronberger , Herbert Strahberger
- 优先权: DE19844891 19980930
- 主分类号: F02M3304
- IPC分类号: F02M3304
摘要:
A fuel injection valve for internal combustion engines, having an axially movable valve member which, with its end oriented toward the combustion chamber, opens and closes a through flow cross section to at least one injection opening and which, with its end remote from the combustion chamber, protrudes into a fuel-filled spring chamber in which a valve spring is clamped, which acts on the valve member in the closing direction and is supported with its end remote from the valve member against a deflecting piston which, during the supply of high pressure fuel to the fuel injection valve, can be moved a certain distance into the spring chamber and thereby increases the initial stress force of the valve spring, and having a connecting conduit between the spring chamber and a low pressure fuel chamber. The connecting conduit between the spring chamber and the low pressure fuel chamber is embodied as a throttle bore in order to increase the injection opening pressure.
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