公开(公告)号：EP2598772A4

公开(公告)日：2017-12-06

申请号：EP11811707

申请日：2011-07-28

申请人： SAFRAN LANDING SYSTEMS CANADA INC

发明人： BESLIU MARIN

IPC分类号： F16F9/342 ,  B64C25/58 ,  F16F9/18 ,  F16F9/44

CPC分类号： B64C25/505 ,  F16F9/065 ,  F16F9/325 ,  F16F13/007

摘要： A hydraulic shimmy damper that resolves drawbacks in several known shimmy dampers, such as damping characteristics that are dependent on oil temperature variations. The disclosed shimmy damper includes a hydraulic compensator (40) having an internal fluid volume that is significantly more important than a fluid volume expelled from the body of the shimmy damper when its piston moves fore and aft. The shimmy damper also includes a hydraulic manifold (30) arranged between the body and the hydraulic compensator and defining a transfer channel between chambers in the piston that is connected to the hydraulic compensator. The manifold receives interchangeable hydraulic cartridge-type valves (CV1,RV1; CV2,RV2) for metering the fluid flowing from the chambers to the transfer channel, and allows the fluid to freely enter the chambers from the transfer channel. The present shimmy damper is therefore much less sensitive to oil temperature variation under intense shimmy.

公开(公告)号：EP2956679A4

公开(公告)日：2017-03-29

申请号：EP14751849

申请日：2014-02-13

申请人： SAFRAN LANDING SYSTEMS CANADA INC

发明人： BESLIU MARIN ,  BRYANT CHRIS ,  SMITH HOWARD

IPC分类号： F15B15/14 ,  F15B15/22 ,  F16B3/04 ,  F16J1/00 ,  F16J1/09 ,  F16J1/12

CPC分类号： F15B15/222 ,  F15B15/1438 ,  F15B15/1447 ,  F15B15/1457 ,  F16B3/04 ,  F16J1/12

摘要： Described is a modular linear actuator for use in an aerospace application, comprising: a piston housing having a closed end and an open end; a piston rod slideable within an interior of the piston housing between an extended position and a compressed position, the piston rod having a first end proximal to the closed end of the piston housing and a second end distal to the closed end of the piston housing; an attachment mechanism for removably attaching a lug end to the closed end of the piston housing, the lug end for attaching the actuator to a first component; an attachment mechanism for removably attaching a rod end to the second end of the piston rod, the rod end for attaching the piston rod to a second component; and, a piston head removably attached to the first end of the piston rod, the piston head for providing a snubbing engagement with the closed end of the piston housing.

摘要翻译： 描述了一种用于航空航天应用的模块化线性致动器，包括：具有封闭端和开口端的活塞壳体; 活塞杆可在活塞壳体的内部在延伸位置和压缩位置之间滑动，活塞杆具有靠近活塞壳体的封闭端的第一端和远离活塞壳体的封闭端的第二端; 用于将突出端可移除地附接到活塞壳体的封闭端的附接机构，用于将致动器附接到第一部件的突出端; 用于可拆卸地将杆端连接到活塞杆的第二端的连接机构，用于将活塞杆连接到第二部件的杆端; 以及可移除地附接到活塞杆的第一端的活塞头，用于提供与活塞壳体的封闭端的缓冲接合的活塞头。