发明授权
US4201114A Electrohydraulic servovalve having removably attached feedback element
失效
电液伺服阀具有可移除的连接反馈元件
- 专利标题: Electrohydraulic servovalve having removably attached feedback element
- 专利标题(中): 电液伺服阀具有可移除的连接反馈元件
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申请号: US953652申请日: 1978-10-23
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公开(公告)号: US4201114A公开(公告)日: 1980-05-06
- 发明人: Clyde E. Cobb , Donald A. Muths
- 申请人: Clyde E. Cobb , Donald A. Muths
- 申请人地址: RI Providence
- 专利权人: Textron Inc.
- 当前专利权人: Textron Inc.
- 当前专利权人地址: RI Providence
- 主分类号: F15B13/044
- IPC分类号: F15B13/044 ; F15B13/043 ; F15B13/16
摘要:
An electrohydraulic servovalve including a second stage piston slidably mounted within a housing and movable responsive to application of pressure signals thereacross to control the flow of fluid under pressure from a source to a load in response to electrical input signals applied to the servovalve. The electrical signals are applied to a torque motor which has a driven member affixed thereto which generates the pressure signals applied to the spool. A mechanical feedback member is connected between the driven member and the spool. The mechanical feedback member is part of an assembly which is removably attached to the driven member. The removable attachment includes a tang extending radially from the driven member which receives a holder to which the feedback member is permanently affixed. The holder includes opposed flanges one of which receives the tang through an indexing opening provided therein. The tang resides in a space defined between the flanges and further the holder includes means for clamping the holder to the tang to position the feedback member in its normal operational position.
公开/授权文献
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