公开(公告)号：US5865156A

公开(公告)日：1999-02-02

申请号：US984195

申请日：1997-12-03

申请人： Dennis D. Feucht ,  Andrew H. Nippert ,  Douglas J. Kinnear ,  Mylvagaganam Arulraja

发明人： Dennis D. Feucht ,  Andrew H. Nippert ,  Douglas J. Kinnear ,  Mylvagaganam Arulraja

IPC分类号： F01L9/02 ,  F02D21/08 ,  F02M25/07 ,  F02M57/02 ,  F02M37/04

CPC分类号： F01L9/02 ,  F02M26/59 ,  F02M26/67 ,  F02M57/025 ,  F01L2800/10

摘要： An actuator assembly that uses a fluctuating operational pressure generated by an injector oil pump to actuate an EGR valve is disclosed. The operational pressure is used to operate the actuator assembly without being adversely affected by the fluctuating nature of the operational pressure. The actuator assembly includes an actuator housing defining a chamber and an actuator oil inlet. The actuator oil inlet is in fluid communication with the pump outlet. The actuator assembly further includes a slider located within the chamber. The slider is positionable between a first slider position and a second slider position. The slider isolates the actuator oil inlet from the chamber when the slider is located in the first slider position. The actuator oil inlet is in fluid communication with the chamber when the slider is located in the second slider position. The actuator assembly still further includes a movement assembly for moving the slider between a first slider position and a second slider position. The fluctuating operational pressure moves the actuator piston from the first piston position to the second piston position when the slider is located in the second slider position. A method of actuating a valve in an engine assembly is also disclosed.

摘要翻译： 公开了一种致动器组件，其使用由喷射器油泵产生的波动的操作压力来致动EGR阀。 操作压力用于操作致动器组件，而不受操作压力的波动特性的不利影响。 致动器组件包括限定腔室和致动器油入口的致动器壳体。 执行器油入口与泵出口流体连通。 致动器组件还包括位于室内的滑块。 滑块可位于第一滑块位置和第二滑块位置之间。 当滑块位于第一滑块位置时，滑块将致动器进油口与腔室隔离。 当滑块位于第二滑块位置时，致动器油入口与腔室流体连通。 致动器组件还包括用于在第一滑动件位置和第二滑动件位置之间移动滑块的移动组件。 当滑块位于第二滑块位置时，波动的操作压力将致动器活塞从第一活塞位置移动到第二活塞位置。 还公开了一种致动发动机组件中的阀的方法。