-
公开(公告)号：US11578736B2
公开(公告)日：2023-02-14
申请号：US17230198
申请日：2021-04-14
申请人： Festo SE & Co. KG
发明人： Daniel Klassen , Gerhard Gommel
摘要： A system including a pneumatic actuator having an actuator element, the system further including a compressed-air provision device which is configured to carry out a closed-loop position control of the actuator element by applying compressed air to the pneumatic actuator. The compressed-air provision device is further configured to carry out an assistance procedure in which the actuator element is set in an oscillation movement, pressure values and position values are detected, and, on the basis of the detected pressure values and the detected position values, friction information and/or mass information is determined and/or verified.
-
公开(公告)号：US20230017589A1
公开(公告)日：2023-01-19
申请号：US17787889
申请日：2020-12-23
申请人： EVECTEK, LTD.
发明人： GEORGE RYTON
摘要： A vehicle drive system, comprises a battery, a power unit in a housing, which itself comprises at least one electric motor/generator, capable of being driven as a motor by the battery or of charging the battery as a generator, at least one hydraulic motor/pump, capable of being driven by the electric motor/generator to pressurize hydraulic fluid, or of being driven by pressurized hydraulic fluid to power the motor generator as a generator, a hydraulic rail communicating the pump, a directional control valves communicating with the hydraulic rail, at least one accumulator for storing pressurized hydraulic fluid, wheel drives capable of being driven by pressurized hydraulic fluid, a hydraulic circuit connecting the directional control valves of the motor housing to the accumulator and wheel drives, and a control system for controlling the operation of the battery, power unit and wheel drives.
-
公开(公告)号：US20220332552A1
公开(公告)日：2022-10-20
申请号：US17720504
申请日：2022-04-14
申请人： TADANO FAUN GmbH
发明人： Detlef Uderhardt
摘要： A hydraulic actuator for a mobile crane, in particular for a locking device of a telescoping device. The hydraulic actuator has a double chamber cylinder with a first cylinder chamber and a second cylinder chamber oriented in an opposite direction to the first cylinder chamber, a first piston rod for the first cylinder chamber, and a second piston rod for the second cylinder chamber. A first restoring spring restores the first piston rod to its main position and a second restoring spring restores the second piston rod to its main position. The main position of the first piston rod is its pushed-in position and the main position of the second piston rod is its extended position.
-
公开(公告)号：US11453464B2
公开(公告)日：2022-09-27
申请号：US16644463
申请日：2018-09-07
发明人： Yngvar Borøy , Thor Strand , Geir Odd Bergstøl
摘要： An electrohydraulic device includes an extender which is arranged to be actuated by hydraulic fluid, and a rotor of an electric motor, the rotor being arranged to rotate about a part of the extender. The rotor may have an annular body which encircles or surrounds part of the extender. There is also described a related method of use and a marine vessel or platform where the device may be applied.
-
公开(公告)号：US20220252087A1
公开(公告)日：2022-08-11
申请号：US17171416
申请日：2021-02-09
申请人： Caterpillar Inc.
发明人： Justin Douglas Speichinger , Ramalho Stive , Darren Joseph Hopf , Aurelien Herve Bernard , Paul Alan Rousseau
摘要： A hydraulic pump or motor includes a mounting flange that is disposed at the first end of the housing. The mounting flange defines a pair of bolt receiving slots that are disposed along the X-axis on either side of the shaft. The pair of bolt receiving slots each define a radius center that are spaced away from each other a X dimension, and a pilot projection extends longitudinally away from the mounting flange, defining a pilot projection diameter. A ratio of the X dimension to the pilot projection diameter ranges from 1.1 to 1.5.
-
公开(公告)号：US11374161B2
公开(公告)日：2022-06-28
申请号：US16115717
申请日：2018-08-29
发明人： Won Jong Jung , Ho Young Kim , Kak Namkoong , Yeol Ho Lee , Myoung Hoon Jung
IPC分类号： B25J9/00 , H01L41/09 , B25J9/16 , B25J9/14 , B25J17/00 , B25J9/12 , F15B15/14 , B25J13/06 , F15B15/08
摘要： An actuator according to an aspect of the present invention includes: a driving body including a plurality of conductive grains, a chamber configured to confine the plurality of conductive grains, and two or more electrodes disposed on a surface of the chamber; and a controller configured to obtain, through the two or more electrodes, a change in an electric signal, in response to a load applied to the chamber, and to adjust the load applied to the chamber based on the change in the electric signal.
-
公开(公告)号：US20210324883A1
公开(公告)日：2021-10-21
申请号：US17230198
申请日：2021-04-14
申请人： Festo SE & Co. KG
发明人： Daniel Klassen , Gerhard Gommel
摘要： A system including a pneumatic actuator having an actuator element, the system further including a compressed-air provision device which is configured to carry out a closed-loop position control of the actuator element by applying compressed air to the pneumatic actuator. The compressed-air provision device is further configured to carry out an assistance procedure in which the actuator element is set in an oscillation movement, pressure values and position values are detected, and, on the basis of the detected pressure values and the detected position values, friction information and/or mass information is determined and/or verified.
-
公开(公告)号：US10995779B2
公开(公告)日：2021-05-04
申请号：US16496234
申请日：2018-03-22
发明人： Christoph Matthias Keplinger , Eric Lucas Acome , Nicholas Alexander Kellaris , Shane Karl Mitchell
摘要： Hydraulically-amplified, self-healing, electrostatic actuators that harness electrostatic and hydraulic forces to achieve various actuation modes. Electrostatic forces between electrode pairs of the actuators generated upon application of a voltage to the electrode pairs draws the electrodes in each pair towards each other to displace a liquid dielectric contained within an enclosed internal cavity of the actuators to drive actuation in various manners. The electrodes and the liquid dielectric form a self-healing capacitor whereby the liquid dielectric automatically fills breaches in the liquid dielectric resulting from dielectric breakdown.
-
公开(公告)号：US20210062833A1
公开(公告)日：2021-03-04
申请号：US16957713
申请日：2019-02-01
申请人： Spira Energy AB
发明人： Daniel EHRNBERG
摘要： An apparatus for converting rotation to fluid flow, comprising a fluid conduit coiled around a rotational axis, the fluid conduit having a first inlet for receiving first fluid having a first density and a second inlet for receiving second fluid having a second density, and a first outlet for output of first fluid and a second outlet for output of second fluid; a motor coupled to the fluid conduit to rotate the fluid conduit around the rotational axis in a first angular direction such that first fluid portions of first fluid and second fluid portions of second fluid are transported along the fluid conduit towards the first outlet, while being pressurized; and a fluid returning arrangement, fluid flow connecting the second outlet and the second inlet for selectively allowing pressurized second fluid to return from the second outlet to the second inlet, while depressurizing the pressurized second fluid.
-
公开(公告)号：US20210061421A1
公开(公告)日：2021-03-04
申请号：US16644463
申请日：2018-09-07
发明人： Yngvar BORØY , Thor STRAND , Geir Odd BERGSTØL
摘要： An electrohydraulic device includes an extender which is arranged to be actuated by hydraulic fluid, and a rotor of an electric motor, the rotor being arranged to rotate about a part of the extender. The rotor may have an annular body which encircles or surrounds part of the extender. There is also described a related method of use and a marine vessel or platform where the device may be applied.
-
-
-
-
-
-
-
-
-
搜索结果
759 条记录 (耗时 0.031 秒)