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公开(公告)号：WO1998023866A1
公开(公告)日：1998-06-04
申请号：PCT/US1997021932
申请日：1997-11-24
Applicant: UNITED TECHNOLOGIES CORPORATION
Inventor： UNITED TECHNOLOGIES CORPORATION , GIBBONS, Kevin, D.
IPC: F15B15/26
CPC classification number: F15B15/26
Abstract: The present invention provides an actuator controlled by an electro-hydraulic servovalve (12) with a failfixed operation upon the loss of electrical power to the servovalve. A lock valve (69) has apertures therethrough with friction pads (99) therein for locking the actuator in position upon loss of the electrical power.
Abstract translation: 本发明提供一种由电动液压伺服阀（12）控制的致动器，其在伺服阀的电力损失时具有故障固定操作。 锁定阀（69）具有穿过其中的摩擦垫（99）的孔，用于在电力损失时将致动器锁定在适当位置。
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公开(公告)号：EP0941408A1
公开(公告)日：1999-09-15
申请号：EP97948593.0
申请日：1997-11-24
Applicant: UNITED TECHNOLOGIES CORPORATION
Inventor： GIBBONS, Kevin, D.
CPC classification number: F15B15/26
Abstract: The present invention provides an actuator controlled by an electro-hydraulic servovalve (12) with a failfixed operation upon the loss of electrical power to the servovalve. A lock valve (69) has apertures therethrough with friction pads (99) therein for locking the actuator in position upon loss of the electrical power.
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公开(公告)号：EP0941408B1
公开(公告)日：2003-07-16
申请号：EP97948593.5
申请日：1997-11-24
Applicant: UNITED TECHNOLOGIES CORPORATION
Inventor： GIBBONS, Kevin, D.
IPC: F15B15/26
CPC classification number: F15B15/26
Abstract: The present invention provides an actuator controlled by an electro-hydraulic servovalve (12) with a failfixed operation upon the loss of electrical power to the servovalve. A lock valve (69) has apertures therethrough with friction pads (99) therein for locking the actuator in position upon loss of the electrical power.
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