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公开(公告)号：US11898582B1
公开(公告)日：2024-02-13
申请号：US18181448
申请日：2023-03-09
IPC分类号： F04B1/328 , F01B3/10 , F01B3/00 , F04B1/0465 , F15B15/14 , F04B53/10 , F04B1/1133
CPC分类号： F15B15/1409 , F01B3/0055 , F01B3/109 , F04B1/0465 , F04B1/1133 , F04B1/328 , F04B53/10
摘要： Methods and systems for a bent axis motor are described. In one example, a bent axis motor includes a valve plate coupled to at least one piston of a cylinder block, the valve plate comprising a first plurality of grooves spaced about openings of the valve plate on a first side of the valve plate facing the cylinder block, the valve plate further comprising a second plurality of grooves arranged on a second side of the valve plate facing away from the cylinder block.
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公开(公告)号：US11598332B2
公开(公告)日：2023-03-07
申请号：US17272198
申请日：2019-09-02
摘要： Provided is a hydraulic orbital machine and a method of adjusting a hydraulic orbital machine comprising a first and a second lobed disk which rotate eccentrically about a rotation axis and within respective rotors; the machine is characterized by the fact that it has adjustment means designed to mutually angularly offset the angles at which, when the machine is at a standstill, the chambers defined between the lobed disks and the stator have minimum volume.
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公开(公告)号：US11421684B2
公开(公告)日：2022-08-23
申请号：US17226136
申请日：2021-04-09
摘要： The gear pump may have a casing, a main shaft and rotating means connected to one end of the main shaft and configured to rotate the main shaft. Housed by the casing, a toothed wheel and at least one other toothed element are intermeshed with the toothed wheel. The other end of the main shaft is connected to one of the toothed wheel and the casing. Rotating the main shaft relative to the rotating means rotates the toothed wheel and the at least one other toothed element relative to the casing, thereby generating the flow. The other one of the casing and the toothed wheel is configured to be rotated around an axis defined by the main shaft for varying a flow rate of the generated flow.
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公开(公告)号：US12060950B2
公开(公告)日：2024-08-13
申请号：US18149346
申请日：2023-01-03
IPC分类号： F16K31/363 , B66D1/08 , F15B13/02
CPC分类号： F16K31/363 , B66D1/08 , F15B13/02
摘要： A valve assembly and a hydraulic circuit including the valve assembly are provided. The valve assembly comprises a hydraulically actuated valve configured to be biased from a first control position to a second control position by a hydraulic pressure applied to a first fluid port of the hydraulically actuated valve. A first switching threshold pressure required to switch the hydraulically actuated valve to its second control position when applied to the first fluid port of the hydraulically actuated valve in its first control position differs from a second switching threshold pressure required to keep the hydraulically actuated valve in its second control position when applied to the first fluid port of the hydraulically actuated valve in its second control position.
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公开(公告)号：US20210324852A1
公开(公告)日：2021-10-21
申请号：US17226136
申请日：2021-04-09
摘要： The gear pump may have a casing, a main shaft and rotating means connected to one end of the main shaft and configured to rotate the main shaft. Housed by the casing, a toothed wheel and at least one other toothed element are intermeshed with the toothed wheel. The other end of the main shaft is connected to one of the toothed wheel and the casing. Rotating the main shaft relative to the rotating means rotates the toothed wheel and the at least one other toothed element relative to the casing, thereby generating the flow. The other one of the casing and the toothed wheel is configured to be rotated around an axis defined by the main shaft for varying a flow rate of the generated flow.
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公开(公告)号：US12116988B2
公开(公告)日：2024-10-15
申请号：US18349239
申请日：2023-07-10
发明人： Luca Fontanesi , Alessandro Sassi , David Gambuzzi
IPC分类号： F04B1/2085 , F16C19/50
CPC分类号： F04B1/2085 , F16C19/502
摘要： The present disclosure relates to a coupling assembly for a variable displacement hydraulic unit. The coupling assembly may have a rotatable swashplate, a swashplate bearing including a cage and a plurality of rollers mounted on the cage, a pin fixed to the swashplate, and a coupling member rotatably supported on the pin. The coupling member is configured to contact a portion of the cage to move the swashplate bearing upon rotation of the swashplate.
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公开(公告)号：US11905938B2
公开(公告)日：2024-02-20
申请号：US17047951
申请日：2019-04-09
摘要： A piston hydraulic device comprises a cylinder block having a plurality of cylinder assemblies and is rotatable about a first rotation axis. Each cylinder assembly comprises a cylinder and a piston. A port plate has a first port and a second port that are angularly spaced relative to the first rotation axis. A plurality of first conduits connect respective cylinders alternately to the first port or the second port. At least one second conduit is connected to a fluid reservoir. At least one directional control valve is positioned in the first conduit and fluidly connects to the second conduit. The at least one directional control valve connects the cylinder to the port plate in a first position and to the fluid reservoir in a second position. A controller is operatively associated with the directional control valve for switching between the first and the second positions.
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公开(公告)号：US11542967B2
公开(公告)日：2023-01-03
申请号：US17127578
申请日：2020-12-18
摘要： Hydraulic systems and methods comprising a source of hydraulic pressure; a hydraulic load; and an energy recovery circuit. The source of hydraulic pressure is fluidly connected to the hydraulic load through a first hydraulic channel with an orifice. The energy recovery circuit includes a recovery channel which is fluidly connected at its first end to the orifice on the side of it which is connected to the source of hydraulic pressure, and which is fluidly connected at its second end to a hydraulic motor.
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