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公开(公告)号：US20230407890A1
公开(公告)日：2023-12-21
申请号：US18332266
申请日：2023-06-09
申请人： Microtecnica S.r.l.
发明人： Michele RESTUCCIA , Dario MOLINELLI , Franco MAINO
摘要： An actuator includes a housing and a piston including an axis. The piston and housing are configured to move relative to each other along the axis. The housing comprises at least one chamber for holding a fluid, the piston being positioned partially within the chamber. A seal configured to isolate the fluid in the chamber is positioned between the piston and the housing. The seal includes a seal body and an energiser. At least one pressure relief conduit is located between the energiser and the chamber. The pressure relief conduit configured to relieve fluid pressure built up in a region between the energiser and the chamber.
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公开(公告)号：US20220194574A1
公开(公告)日：2022-06-23
申请号：US17539415
申请日：2021-12-01
申请人： Microtecnica S.r.l.
发明人： Dario MOLINELLI , Michele RESTUCCIA , Franco MAINO
IPC分类号： B64C27/78 , B64C27/605 , B64C27/82
摘要： A joint for an actuator of a rotorcraft includes a housing configured to be coupled to an input lever of the actuator; and a rotary bearing coupled to the housing, the rotary bearing comprising an inner race and an outer race and configured to be coupled to a control rod, wherein the inner race and outer race are rotationally fixed relative to each other until a torque applied to the joint exceeds a threshold torque value, upon which there is a relative rotatability between the inner race and the outer race.
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公开(公告)号：US20230182888A1
公开(公告)日：2023-06-15
申请号：US17942637
申请日：2022-09-12
申请人： Microtecnica S.r.l.
发明人： Dario MOLINELLI
CPC分类号： B64C13/40 , F15B15/1447 , F15B15/1428
摘要： A stability and control augmentation system (SCAS) actuator is operable for actuating a flight control surface of an aircraft. The SCAS actuator includes an actuator housing having a first aperture, a second aperture and a hydraulic chamber therebetween. A piston extends through the actuator housing. Fluid inlets are in fluid communication with regions of the hydraulic chamber. A first end portion of the piston is arranged to slide through the first aperture without a seal between the first end portion and the first aperture. A second end portion of the piston is arranged to slide through the second aperture without a seal between the second end portion and the second aperture. An intermediate portion of the piston is arranged to slide in the hydraulic chamber without a seal between the intermediate portion and the hydraulic chamber.
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公开(公告)号：US20220373024A1
公开(公告)日：2022-11-24
申请号：US17735504
申请日：2022-05-03
申请人： Microtecnica S.r.l.
发明人： Dario MOLINELLI , Franco MAINO , Michele RESTUCCIA
IPC分类号： F16C23/04
摘要： A bearing assembly includes a housing, a spherical bearing located within the housing, and two outer races positioned between the spherical bearing and the housing. The outer races are configured in sliding engagement with the spherical bearing to allow the spherical bearing to rotate relative to the housing. The assembly also includes a tightening element configured to engage a first of the two outer races and tighten the outer races against the spherical bearing. The assembly is configured to provide a primary load path from the tightening element to the housing, wherein the primary load path leads from the tightening element to the housing via the outer races whilst bypassing the spherical bearing.
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公开(公告)号：US20200378407A1
公开(公告)日：2020-12-03
申请号：US16711837
申请日：2019-12-12
申请人： Microtecnica S.r.l.
发明人： Giacomo MEZZINO , Franco MAINO , Dario MOLINELLI
IPC分类号： F15B11/10
摘要： A hydraulic actuator is disclosed that comprises a first, fixed portion and a second portion movable relative to the first portion. The second portion comprises a hydraulic actuating device for actuating a component, and the actuator further comprises an intermediate member configured to interconnect the first portion with the second portion and permit movement of the second portion relative to the first portion. The intermediate member is configured to convey hydraulic fluid to the hydraulic actuating device of the second portion through a body of the intermediate member.
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公开(公告)号：US20230358267A1
公开(公告)日：2023-11-09
申请号：US18308931
申请日：2023-04-28
申请人： Microtecnica S.r.l.
发明人： Dario MOLINELLI , Franco MAINO , Michele RESTUCCIA
摘要： A lock nut assembly for an actuator, the lock nut assembly comprising a nut configured to be mounted to a bracket of the actuator for axial movement relative to the bracket, and a lock nut retaining and release mechanism configured to be fixedly mounted to the bracket and axially movable between a first engaged position in which the lock nut retaining and release mechanism engages with the nut to prevent rotation of the nut and a second unlocked position in which the lock nut retaining and release mechanism is not engaged with the nut and the nut can be rotated relative to the bracket.
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公开(公告)号：US20180172178A1
公开(公告)日：2018-06-21
申请号：US15837001
申请日：2017-12-11
申请人： Microtecnica S.r.l.
发明人： Ettore ARTONI , Franco Maino , Dario MOLINELLI
IPC分类号： F16K31/122 , B64C13/18 , B64C13/42 , B64C13/44
摘要： A SCAS module includes one or more SCAS actuators wherein each SCAS actuator comprises a piston arranged for linear motion within a hydraulic chamber in response to a flow of hydraulic fluid metered by a valve. The piston comprises a flexible rod or quill for providing a linear output along the first axis, the flexible rod or quill being mounted internally within an annular portion of the piston so that a space is defined around the flexible rod or quill. The flexible rod or quill is capable of deforming into the surrounding space in order to accommodate movement of the flexible rod or quill.
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公开(公告)号：US20230417282A1
公开(公告)日：2023-12-28
申请号：US17972905
申请日：2022-10-25
申请人： Microtecnica S.r.l.
发明人： Franco MAINO , Dario MOLINELLI , Michele RESTUCCIA
CPC分类号： F16C25/06 , F16C2326/43 , F16C43/04
摘要： A bearing assembly includes a housing, an annular outer race located at least partially within the housing, a bearing located at least partially within the outer race, and a nut configured to be secured to a second axial end of the outer race. The outer race has a central axis and comprises a flange at a first axial end, wherein the flange is configured to prevent movement of the outer race relative to the housing in a first axial direction. The nut is configured to prevent movement of the outer race relative to the housing in a second axial direction, the second axial direction being opposite to the first axial direction.
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公开(公告)号：US20210332833A1
公开(公告)日：2021-10-28
申请号：US17369115
申请日：2021-07-07
申请人： Microtecnica S.r.l.
发明人： Giacomo MEZZINO , Franco MAINO , Dario MOLINELLI
摘要： A hydraulic actuator is disclosed that comprises a first, fixed portion and a second portion movable relative to the first portion. The second portion comprises a hydraulic actuating device for actuating a component, and the actuator further comprises an intermediate member configured to interconnect the first portion with the second portion and permit movement of the second portion relative to the first portion. The intermediate member is configured to convey hydraulic fluid to the hydraulic actuating device of the second portion through a body of the intermediate member.
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公开(公告)号：US20210123494A1
公开(公告)日：2021-04-29
申请号：US16713101
申请日：2019-12-13
申请人： MICROTECNICA S.r.l.
发明人： Giacomo MEZZINO , Dario MOLINELLI , Franco MAINO
摘要： There is provided a damper assembly for a helicopter rotor. The damper assembly comprises a piston movable along an axis, a piston shaft connected to and axially movable with the piston along the axis, and a bushing configured to surround the piston shaft and guide the piston shaft for movement along the axis. The bushing comprises a surface configured to oppose the piston shaft and guide the piston shaft for movement along the axis. The piston shaft comprises a surface configured to oppose the surface of the bushing. A clearance is provided between the surface of the piston shaft and the surface of the bushing so as to provide a passage for fluid to flow between the bushing and the piston shaft in use.
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