
基本信息:
- 专利标题: Injection valve
- 专利标题(中):注射阀
- 申请号:US10276833 申请日:2003-05-13
- 公开(公告)号:US20040050971A1 公开(公告)日:2004-03-18
- 发明人: Johannes-Joerg Rueger , Wolfgang Stoecklein , Dietmar Schmieder
- 优先权: DE10113560.2 20010321
- 主分类号: H01L041/04
- IPC分类号: H01L041/04 ; F02M063/00
摘要:
An injector is proposed, in particular an injector for a combustion engine. It includes at least one nozzle module (3) which has an injection nozzle and a supply line for a fluid under a supply pressure (p_R), and a valve-control module (2), which is in operative connection with the nozzle module (3), and at least one valve-closure member (16) on which the supply pressure (p_R) acts, and includes a piezoelectric actuator (12) which is used to activate the valve-closure member (16) and which is prestressed by a spring (21) in the direction facing away from the valve-closure member (16), the piezoelectric actuator (12) being activated by a valve-control unit (30) which specifies a control gradient (dU/dt). The control gradient (dU/dt) is a variable that is dependent upon the supply pressure (p_R).
摘要(中):
提出了一种喷射器,特别是用于内燃机的喷射器。 它包括至少一个喷嘴模块(3),其具有喷射喷嘴和用于在供应压力(p_R)下的流体供应管线)和与喷嘴模块(...)操作连接的阀控制模块(2) 3)和至少一个其上供应压力(p_R)作用的阀关闭构件(16),并且包括压电致动器(12),所述压电致动器用于启动所述阀关闭构件(16)并由 在离开所述阀关闭构件(16)的方向上的弹簧(21),所述压电致动器(12)由指定控制梯度(dU / dt)的阀控制单元(30)启动。 控制梯度(dU / dt)是一个取决于供应压力(p_R)的变量。
公开/授权文献:
- US07398933B2 Injection valve 公开/授权日:2008-07-15