公开(公告)号：US20230311436A1

公开(公告)日：2023-10-05

申请号：US18191463

申请日：2023-03-28

申请人： Microtecnica S.r.l.

发明人： Dario Molinelli ,  Michele Restuccia ,  Franco Maino ,  Ettore Egisto Artoni ,  Francesco Marongiu

IPC分类号： B29C71/02

CPC分类号： B29C71/02 ,  B29K2021/00

摘要： A method of manufacturing an actuator The method comprises assembling the actuator, and curing the actuator using a predetermined heating profile.

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

IPC分类号： B64C13/40 ,  F15B15/14

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.

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.

公开(公告)号：US11085464B2

公开(公告)日：2021-08-10

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： F15B15/14 ,  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.

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.

公开(公告)号：US10823306B2

公开(公告)日：2020-11-03

申请号：US15834334

申请日：2017-12-07

申请人： MICROTECNICA S.r.l.

发明人： Claudio Carpignano

IPC分类号： F16K31/122 ,  F16K1/12 ,  F16K3/26 ,  F16K27/04 ,  B33Y80/00

摘要： A pneumatic valve is disclosed comprising: an outer housing formed from a continuous single-piece of material and defining a fluid inlet port and a fluid outlet port; a separate piston sleeve housed within the housing; and a piston slidably mounted within the piston sleeve.

公开(公告)号：US10767499B2

公开(公告)日：2020-09-08

申请号：US14828609

申请日：2015-08-18

申请人： MICROTECNICA S.R.L

发明人： Marco Gianfranceschi

IPC分类号： F01D5/32 ,  B64C11/34 ,  B64C27/72 ,  B64C27/57 ,  B64C27/00 ,  F03D7/02

摘要： A locking device for use in a rotor blade, said locking device comprising: a locking member that is arranged to be movable from an unlocked position to a locking position upon experiencing sufficiently fast rotation; and a selectively engagable retaining device arranged when engaged to retain the locking member in the unlocked position. The locking device will typically default to an unlocked position during normal rotation and will only be locked so as to prevent movement when the retaining device is de-activated. A method of locking an actuator is also disclosed. The locking device has applications in helicopter rotor blades and wind turbine blades amongst others.

公开(公告)号：US10359789B2

公开(公告)日：2019-07-23

申请号：US15598543

申请日：2017-05-18

申请人： Microtecnica S.r.l.

发明人： Giorgio Dante ,  Dario Savino ,  Giuseppe Musso

IPC分类号： F16K31/12 ,  G05D16/10 ,  F02C7/047 ,  F02C9/16 ,  F16K17/04 ,  G05D16/20 ,  F16K31/124 ,  F16K3/26 ,  F16K31/40

摘要： A pneumatic pressure regulation valve comprising: a valve inlet; a valve outlet; a piston arranged to control gas flow from the inlet to the outlet; a sense line fluidly connecting the inlet to a pressure regulation chamber and with a pressure relief valve connected thereto to limit the pressure in the pressure regulation chamber; wherein the piston is arranged between the pressure regulation chamber and the valve outlet such that the position of the piston is determined by the relative pressures in the regulation chamber and the valve outlet and the position of the piston controls the flow from the valve inlet to the valve outlet; wherein the sense line comprises a flow restriction upstream of the pressure relief valve. The flow restriction addresses instability that can arise from large volumes of connecting tubes or pipes in the sense line.

公开(公告)号：US20190170266A1

公开(公告)日：2019-06-06

申请号：US16143545

申请日：2018-09-27

申请人： Microtecnica S.r.l.

发明人： Enrico QUAGLIA ,  Claudio CARPIGNANO ,  Dario TURTURICI

IPC分类号： F16K17/06 ,  F16K17/08

摘要： A new type of pressure relief valve is described herein which has advantages over standard valves in that it may comprise a longer plunger than normal, and two guiding points located far away from each other for guiding the plunger within the housing. The valve may also comprise improved exhaust ports and an anti-rotation washer.

公开(公告)号：US09810298B2

公开(公告)日：2017-11-07

申请号：US15148145

申请日：2016-05-06

申请人： Microtecnica S.r.l

发明人： Marco Gianfranceschi

IPC分类号： C23C22/24 ,  F16J15/34 ,  F16H25/24 ,  C23C4/18 ,  C23C4/11 ,  C23C4/134 ,  F16H25/22 ,  F16J15/18

CPC分类号： F16H25/2418 ,  C23C4/11 ,  C23C4/134 ,  C23C4/18 ,  F16H25/2204 ,  F16H2025/249 ,  F16J15/181

摘要： A rotary seal comprising: a shaft with a chromium oxide coating provided at a seal contact area; wherein said coating has a hardness of at least 55 Rockwell-C. The coating may have a surface roughness parameter (Ra) of between 0.2 and 0.4 circular. The coating may have a thickness of at least 0.1 mm. The coating layer forms part of a rotary seal with a flexible seal element that is biased into contact with the surface of the coating. The flexible seal element may be biased against the shaft by a spring to increase the pressure of the flexible seal element against the coating. The coating is preferably deposited by a plasma spray process.