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公开(公告)号：US11312475B2
公开(公告)日：2022-04-26
申请号：US16711488
申请日：2019-12-12
发明人： Raphael Medina
摘要： A system for detecting and controlling the position of a spoiler of an aircraft wing is described herein comprising: a hydraulic actuator having a piston rod operably connected to the spoiler, the piston rod being moveable between a retracted position, a neutral position and an extended position; and means for providing power to said hydraulic actuator; and a mechanical device for detecting whether the piston rod is in the retracted position, the neutral position or the extended position; and means, operatively connected to the mechanical device, that is configured to provide a change in a load applied to said hydraulic actuator, wherein said means is configured to change said load based on whether said piston rod is detected as being in said retracted position or said extended position.
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公开(公告)号：US20210025123A1
公开(公告)日：2021-01-28
申请号：US16968361
申请日：2019-02-27
申请人： Leon TRUDEAU
发明人： Leon TRUDEAU
摘要： Assemblies to cut a hollow piling are provided, which may have a pressurized hydraulic fluid supply configured to supply enough force to cut through up to the circumference of a piling having a housing having a cavity to receive the hydraulic fluid, the housing having at least one cylinder wall; at least one piston assembly slidably disposed within the at least one cylinder wall configured to extend from the at least one cylinder wall in response to the introduction of pressurized hydraulic fluid into the housing cavity; and a blade attached at a radially distal end of the piston assembly, whereby as the blade extends through the cylinder wall, a cutting force is applied to an encountered piling wall.
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公开(公告)号：US10820467B2
公开(公告)日：2020-11-03
申请号：US16032847
申请日：2018-07-11
申请人： Launy Luckmann
发明人： Launy Luckmann
IPC分类号： A01B63/106 , A01D34/66 , A01B63/111 , A01D34/74 , F16F9/00 , A01B63/10 , A01D67/00 , A01D34/64 , F15B15/24 , A01D101/00
摘要： A suspension for a mower includes a stationary part, a movable part, and at least one cutting unit. The moveable part is connected to the stationary part via a hydraulic actuator such that an actuation of the hydraulic actuator displaces the movable part in relation to the stationary part. Displacement of the movable part includes a vertical component of displacement of the movable part. At least one cutting unit is mechanically connected to the movable part.
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公开(公告)号：US10801528B2
公开(公告)日：2020-10-13
申请号：US16289793
申请日：2019-03-01
申请人： Microtecnica S.r.l.
发明人： Giacomo Mezzino , Enrico Quaglia
摘要： An actuator includes an actuator piston movable along an axis, a first stop member rotatable about the axis and configured to limit the movement of the actuator piston in a first direction along the axis, a second stop member movable along the axis and configured to limit the movement of the actuator piston in a second direction along the axis, wherein the first direction is opposite to the second direction. A first screw connection is present between the first stop member and the second stop member such that rotation of the first stop member about the axis causes movement of the second stop member along the axis to vary the amount by which the actuator piston can move along the axis in use.
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公开(公告)号：US10773697B2
公开(公告)日：2020-09-15
申请号：US16342377
申请日：2017-09-26
申请人： Robert Bosch GmbH
发明人： Andreas Weh , Harald Guggenmos , Martin Hoss , Matthias Mayr , Simon Hansmann , Raynald Sprocq
摘要： A pedal travel simulator for a hydraulic power vehicle braking system. For the purpose of adapting to different main brake cylinders and of changing a spring characteristic curve, a stop is provided to be pressed into a piston of the pedal travel simulator. A pressing-in depth of the stop delimits a piston stroke.
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公开(公告)号：US10677271B2
公开(公告)日：2020-06-09
申请号：US15830690
申请日：2017-12-04
摘要： A hydraulic cylinder may include a cylindrical body, a first piston rod coupled with a first end of the body, and a second piston rod coupled with a second end of the body. The first piston rod may include a cavity with an inner diameter, and the second piston rod may have an outer diameter that is smaller than the inner diameter of the cavity. The hydraulic cylinder is adjustable from a closed position, in which a length of the first piston rod is housed inside the body and a length of the second piston rod is housed inside the cavity of the first piston rod, to an extended position, in which the first piston rod extends through the first end of the body and the second piston rod extends through the second end of the body.
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公开(公告)号：US10480548B2
公开(公告)日：2019-11-19
申请号：US15539400
申请日：2016-09-30
申请人： Yong Jun Lee
发明人： Yong Jun Lee
摘要： A hydraulic actuator to which a limit-adjustable mechanical lock device is applied, comprising: a housing having a first hole; side covers coupled at both sides of the housing, and having holder insertion holes formed to be opened toward the first hole side of the housing, and plugs; a first holder of which one side of the outer peripheral surface is inserted into the holder insertion hole at the plug side of the side cover by screw coupling; a second holder fitted and coupled to the inner peripheral surface of the side cover and having one end thereof screw-coupled to the second hole of the first holder; a locking means into which a rod is inserted so as to be movable in an axial direction at a predetermined distance across the second hole of the first holder and the third hole of the second holder.
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公开(公告)号：US10202986B2
公开(公告)日：2019-02-12
申请号：US15107954
申请日：2014-12-15
申请人： KCM Corporation
发明人： Shinichiro Tanaka , Hiroyasu Kodera
IPC分类号： B62D5/065 , F15B11/048 , B62D5/07 , E02F9/08 , E02F9/22 , F15B11/16 , B62D5/06 , B62D5/08 , B62D5/10 , F04B49/06 , F04B49/22 , F15B5/00 , F15B15/04 , F15B15/24
摘要： A hydraulic drive system (1) including a meter-in compensator (37) and a bleed-off compensator (42) comprises a plurality of sensors (64 to 68), a controller (62), and an outlet pressure switching valve (61). The controller (62) determines whether or not the state of a wheel loader (2) which is detected based on the signals output from the sensors (64 to 68) meets a predetermined steering limiting condition. When the controller (62) determines that the state of the wheel loader (2) meets the steering limiting condition, it outputs a command signal to the outlet pressure switching valve (61). The outlet pressure switching valve (61) reduces the flow rate of the hydraulic oil flowing to steering cylinders (18L, 18R), in response to the command signal in such a manner that the flow rate becomes lower than that corresponding to the operation amount of a handle of a steering device (35).
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公开(公告)号：US10100852B2
公开(公告)日：2018-10-16
申请号：US15103507
申请日：2013-12-30
摘要： A pump including a power end (202) and a fluid end (204). A bore (214) extends through the fluid end (204). A rod (212) is disposed in the bore (214) of the fluid end (204) and extends into the power end (202). The rod (212) includes a reduced diameter portion (222) and the rod (212) is configured to connect the power end (202) and the fluid end (204). The pump also includes a retaining apparatus (216) coupled to the reduced diameter portion (222) of the rod (212). A shoulder (218) is formed between a first inner diameter (226) of the bore (214) and a second inner diameter (228) of the bore (214). The first inner diameter (226) is smaller than an outer diameter of the retaining apparatus (216). A first end (260) of the retaining apparatus (216) is configured to contact the shoulder (218) and a second end (262) of the retaining apparatus (216) is configured to contact a contact surface formed on the rod (212) in order to restrict movement of the rod (212) within the bore (214).
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公开(公告)号：US10087961B2
公开(公告)日：2018-10-02
申请号：US14947920
申请日：2015-11-20
申请人： Robert Bosch GmbH
发明人： Rene Schepp , Edgar Kurz , Norbert Alaze
摘要： A (collar-equipped) piston and a piston-equipped assembly for a hydraulic unit or a piston-cylinder device of a vehicle braking system, includes a contact surface for a sealing collar, which has a shape curving away from the sealing collar, formed on the piston, so that the sealing collar is pressable, at least partially, into a displacement volume, which is spanned by the contact surface of the piston, with a pressure which is present on a side of the sealing collar directed away from the piston. Also described is a hydraulic unit and a piston-cylinder device for a vehicle braking system, and a vehicle braking system. Further described is a manufacturing method for a piston for a hydraulic unit or a piston-cylinder device of the braking system, and a manufacturing method for a piston-equipped assembly for a hydraulic unit or a piston-cylinder device of the braking system.
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