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公开(公告)号：US20250067287A1
公开(公告)日：2025-02-27
申请号：US18905793
申请日：2024-10-03
Applicant: Wagner Spray Tech Corporation
Inventor： Daniel Robert ZIENTARA , Lam HUU NGUYEN
IPC: F15B15/28 , B05B9/00 , B05B9/04 , B05B12/00 , F04B9/08 , F04B9/105 , F04B15/02 , F04B17/06 , F04B49/06 , F15B13/044 , G01R33/07
Abstract: A liquid delivery system includes a source of hydraulic fluid and a hydraulic cylinder fluidically coupled to the source of hydraulic fluid and having a hydraulic piston movable between first and second limit positions. The liquid deliver system includes a rod connected to the piston and extending out of the hydraulic cylinder and a sensor device located outside the hydraulic cylinder and configured to sense a position of the rod and to generate a signal indicating the sensed position. The liquid delivery system includes a liquid cylinder comprising a liquid piston, operably driven by the rod, to pump a liquid along a flow path to a fluid applicator.
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2.发明授权公开(公告)号：US12196837B2
公开(公告)日：2025-01-14
申请号：US18515444
申请日：2023-11-21
Applicant: SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY , SHANDONG YUFEI TRANSMISSION TECHNOLOGY CO., LTD
Inventor： Wenhong Li , Yi Zhang , Fansheng Meng , Tianyu Zhu , Hongmei Tang , Luqun Zhu , Jianyu Guo , Wenlong Zhang , Xixin Liu
Abstract: The present disclosure provides a method of perceiving a position and pose of a hydraulic support group based on multi-point ranging and belongs to the field of test or measurement technologies unlisted in other categories. The method uses a hydraulic support group. The hydraulic support group includes multiple juxtaposed hydraulic supports. The method includes: with a plane above a base as a reference plane, establishing a reference coordinate system; perceiving a relative position of the base and a canopy of the hydraulic supports and perceiving a position and pose of a single hydraulic support; when the hydraulic supports have axial offset and roll phenomenon, performing offset amount calculation; based on the perception of the position and pose of single hydraulic supports, performing perception on the position and pose of the hydraulic support group. In the present disclosure, the measurement devices achieve conversion of pure distance information into three-dimensional pose information of an object in time and space by using logical combination of several real-time ranging terminals, leading to simple structure; there is no interference between measurement devices, and there is wireless connection between a signal transmitting device and a signal receiving device, resulting in no rendezvous point and being free from impact of frictional force.
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3.发明申请公开(公告)号：US20240369695A1
公开(公告)日：2024-11-07
申请号：US18515444
申请日：2023-11-21
Applicant: SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY , SHANDONG YUFEI TRANSMISSION OF TECHNOLOGY Co, LTD.
Inventor： Wenhong LI , Yi ZHANG , Fansheng MENG , Tianyu ZHU , Hongmei TANG , Luqun ZHU , Jianyu GUO , Wenlong ZHANG , Xixin LIU
Abstract: The present disclosure provides a method of perceiving a position and pose of a hydraulic support group based on multi-point ranging and belongs to the field of test or measurement technologies unlisted in other categories. The method uses a hydraulic support group. The hydraulic support group includes multiple juxtaposed hydraulic supports. The method includes: with a plane above a base as a reference plane, establishing a reference coordinate system; perceiving a relative position of the base and a canopy of the hydraulic supports and perceiving a position and pose of a single hydraulic support; when the hydraulic supports have axial offset and roll phenomenon, performing offset amount calculation; based on the perception of the position and pose of single hydraulic supports, performing perception on the position and pose of the hydraulic support group. In the present disclosure, the measurement devices achieve conversion of pure distance information into three-dimensional pose information of an object in time and space by using logical combination of several real-time ranging terminals, leading to simple structure; there is no interference between measurement devices, and there is wireless connection between a signal transmitting device and a signal receiving device, resulting in no rendezvous point and being free from impact of frictional force.
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公开(公告)号：US20240287949A1
公开(公告)日：2024-08-29
申请号：US18175120
申请日：2023-02-27
Applicant: Woodward, Inc.
Inventor： Jeffrey Michael Brandt
CPC classification number: F02K1/763 , F15B1/265 , F15B13/027 , F15B13/06 , F15B15/2815
Abstract: The subject matter of this specification can be embodied in, among other things, an engine assembly having a nacelle partially surrounding an engine, and a thrust reverser having a first element movable relative to the nacelle between a stowed and deployed position, a first hydraulic actuator configured to move the first element between the stowed and deployed position, the first hydraulic actuator being connected to a fluid source and a return reservoir, and a second element movable between a stowed and deployed position, a second hydraulic actuator configured to move the second element between the stowed and deployed position, the second hydraulic actuator being connected to the fluid source and the return reservoir, and a fluid control system having a servo valve operable to selectively route fluid between the fluid source, the first hydraulic actuator, and the return reservoir, and a controller configured to operate the servo valve.
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公开(公告)号：US11994155B2
公开(公告)日：2024-05-28
申请号：US17258591
申请日：2019-07-30
Applicant: KOSMEK LTD.
Inventor： Hideaki Yokota , Keitaro Yonezawa
CPC classification number: F15B15/2807 , B23Q3/082 , F15B15/1409 , F15B15/1423
Abstract: A plurality of detection valves (12 and 13) are provided to a housing (1), and at least one air passage (14 and 15), which communicatively connects the detection valves (12 and 13) to each other in series, are provided to the housing (1). One or some of the detection valves (12 and 13) are each configured as a throttle detection valve (13) including a throttle passage (56a).
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Patent Agency Ranking
公开(公告)号：US20240084827A1
公开(公告)日：2024-03-14
申请号：US18513052
申请日：2023-11-17
Applicant: Stabilus GmbH
Inventor： JAMES T. KULL , PATRICK A. HARTMAN
CPC classification number: F15B15/2861 , A01D34/006 , A01D69/02
Abstract: A piston assembly for use in a gas spring or damper can include a piston rod partially positioned within a pressure tube, and a linear position sensing apparatus capable of tracking and determining the velocity of the piston rod. The linear position sensing apparatus can include a sensor, such as a waveguide sensor, connected to the piston rod such that the sensor moves with the piston rod. A beacon, such as a magnet, can be contained within the pressure tube and the sensor can detect the position of the beacon relative to the sensor.
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公开(公告)号：US20240084826A1
公开(公告)日：2024-03-14
申请号：US17944669
申请日：2022-09-14
Applicant: Ózgun Kilic Afsar , Klas Anders Hjort
Inventor： Özgun KILIC AFSAR , Klas Anders Hjort , Seung Hee JEONG
CPC classification number: F15B15/2815 , F15B15/103 , F15B2215/305
Abstract: The present invention relates to a multilayered composite fluidic fiber actuator, to a method of producing such and to a fluidic actuator control and measurement system comprising a multilayered composite fluidic fiber actuator comprising an elongated elastic tube. The multilayered composite fluidic fiber actuator comprises at least o first and a second stretchable resistive sensor provided on the outer surface of and integrated with the elongated elastic tube and is enclosed by an interlocked sleeve. At least a first portion in the longitudinal direction of the elongated elastic tube has a first configuration and a second portion in the longitudinal direction of the elongated elastic tube has a second and different configuration of the first stretchable resistive sensor and the second stretchable resistive sensor.
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8.发明公开公开(公告)号：US20240011513A1
公开(公告)日：2024-01-11
申请号：US18472527
申请日：2023-09-22
Applicant: SANY AUTOMOBILE MANUFACTURING CO., LTD.
IPC: F15B15/28
CPC classification number: F15B15/2846 , F15B15/2876
Abstract: Disclosed are a method and a device for detecting a position of a piston rod, a hydraulic cylinder and a working machine. The method includes: acquiring a target image at a target position; obtaining a pixel information corresponding to the target image; comparing the pixel information with a pixel database of the piston rod, a full-stroke pixel information of the piston rod and a relationship between the full-stroke pixel information of the piston rod and a displacement of the piston rod are stored in the pixel database of the piston rod, and the full-stroke pixel information at least comprises the pixel information within a range in which the piston rod is configured to move relative to the target position; and determining a position information of the piston rod based on a comparison result.
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公开(公告)号：US11835069B2
公开(公告)日：2023-12-05
申请号：US17937683
申请日：2022-10-03
Applicant: Woodward, Inc.
Inventor： James D. Rosplock
CPC classification number: F15B15/2815 , G01D5/2046
Abstract: The subject matter of this specification can be embodied in, among other things, an actuator that includes a piston configured to actuate relative to a housing, a sensor rod configured to be actuated by the piston, a sensor affixed to the housing and configured to detect a piston position of the piston relative to the housing based on a sensor rod position of the sensor rod relative to the sensor, and a linkage configured to couple the sensor rod to the piston, and to offset a change to the sensor rod position due to a temperature-induced dimensional change to at least one of the housing, piston, the sensor rod, and the sensor.
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公开(公告)号：US11821444B2
公开(公告)日：2023-11-21
申请号：US17838330
申请日：2022-06-13
Applicant: Festo SE & Co. KG
Inventor： Michael Rau , Stephan Widmayer , Nenad Bartolic
IPC: F15B15/14 , F15B15/22 , F15B15/28 , F16J1/00 , F16J15/328 , F16J15/3232
CPC classification number: F15B15/1452 , F15B15/1471 , F15B15/226 , F15B15/2807 , F16J1/005 , F16J1/006 , F16J1/008 , F16J15/328 , F16J15/3232
Abstract: A piston for a fluid-actuated working cylinder, with a piston base unit which is coaxial to a piston longitudinal axis, consisting of a rigid core body which has radial outer peripheral surface and of an annular filling body which is seated in an annular receiving groove. The receiving groove is coaxial to the piston longitudinal axis and in the region of the radial outer peripheral surface is designed with a radially outwardly facing groove opening in the core body. The piston further includes a ring element which consists of plastic. The ring element radially outwardly coaxially encompasses the piston base unit at least in the region of the filling body, being radially supported with a radial inner peripheral surface on the piston base unit, projecting radially beyond the radial outer peripheral surface of the core body and comprising an axially orientated axial support surface radially outside the piston base unit on its two axial face sides. The piston further includes an annular enveloping body which has rubber elastic characteristics.
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