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公开(公告)号：WO2018215514A1
公开(公告)日：2018-11-29
申请号：PCT/EP2018/063457
申请日：2018-05-23
Applicant: DANFOSS POWER SOLUTIONS GMBH & CO OHG
Inventor： BAGUSCH, Jens
CPC classification number: F04B39/1073 , F03C1/0444 , F04B1/0465 , F04B1/20 , F04B1/2021 , F04B1/2042 , F04B39/10 , F04B49/22 , F04B49/225 , F04B53/10
Abstract: The invention relates to improved bearing and lubrication between cylinder blocks (3) and valve segments (2) of hydraulic axial piston units (1) and their rotating kits. In the valve segments first and a second kidney-shaped ports (11, 21) are formed rotationally symmetric with regard to a rotational axis of the cylinder block for providing a suction and a discharge port for charging and discharging hydraulic fluid to and from cylinder bores (8) in the cylinder block. At the radial outer edges of the kidney-shaped ports a plurality of concave formed hydrostatic bearing notches (50) are provided on a sliding surface (7) facing the cylinder block and intersecting with one of the kidney-shaped ports. Alternatively the bearing notches can be located on a bottom surface (9) of the cylinder block extending outwards from outer edges of openings (35) for charging and discharging hydraulic fluid to and from the cylinder bores.
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公开(公告)号：WO2017121545A1
公开(公告)日：2017-07-20
申请号：PCT/EP2016/080125
申请日：2016-12-07
Applicant: DANFOSS POWER SOLUTIONS GMBH & CO OHG
Inventor： BAHNA, Peter , MARSCH, Suenje , LAFFRENZEN, Heiko
IPC: F04B1/14
CPC classification number: F04B1/146 , F04B2201/12041 , F04B2201/12051
Abstract: The invention is directed to a swashplate angle sensor (10) for a variable displacement hydraulic unit (1). The hydraulic unit (1) comprising a housing (2), within which a swashplate (3) with a rod shaped feedback-link (12) fixedly attached to the swashplate (3) is arranged pivotable around a swashplate axis (7). The angle sensor (10) comprising a magnet (16) mounted rotatable on a magnet carrier (13), and a sensor (15) for sensing the orientation of the magnet (16). The magnet carrier (13) is located in a control block (14) attached to the housing (2) and is located parallel to the feedback-link (12). The magnet carrier (13) is rotatable around a sensor axis (18) being parallel to the swashplate axis (7). A linkage spring (11) provides a connection between the feedback-link (12) and the magnet carrier (13) such that a pivoting of the swashplate (3) with the feedback-link (12) causes a rotation of the magnet carrier (13).
Abstract translation: 本发明涉及用于可变排量液压单元（1）的斜盘角度传感器（10）。 所述液压单元（1）包括壳体（2），所述斜盘（3）上固定地安装有具有杆状反馈连杆（12）的斜盘（3），所述斜盘围绕斜盘轴线（7）可枢转。 该角度传感器（10）包括可旋转地安装在磁体载体（13）上的磁体（16）以及用于感测磁体（16）的方向的传感器（15）。 磁体托架（13）位于连接到壳体（2）的控制块（14）中并且平行于反馈连接件（12）定位。 磁体托架（13）可围绕与斜盘轴线（7）平行的传感器轴线（18）旋转。 联动弹簧（11）在反馈连接件（12）和磁体托架（13）之间提供连接，使得斜盘（3）与反馈连接件（12）的枢转导致磁体托架 13）。
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公开(公告)号：WO2019211100A1
公开(公告)日：2019-11-07
申请号：PCT/EP2019/060108
申请日：2019-04-18
Applicant: DANFOSS POWER SOLUTIONS GMBH & CO OHG
Inventor： FIEBING, Anja , FIEBING, Carsten
Abstract: The invention relates to a port plate (1) for a fluid throughput regulating device, comprising at least one fluid blocking section, and at least one flu- id conduit means (7, 9, 10, 13, 14, 15, 17, 18, 19) that fluidly connects two surface parts (2, 3) of said port plate (1). Said fluid conduit means (7, 9, 10, 13, 14, 15, 17, 18, 19) comprises at least one fluid conduit (14) that is bent in a way that there is no line-of-sight axis between the surface parts (2, 3) that are connected by the respective fluid conduit (14).
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公开(公告)号：WO2018206741A1
公开(公告)日：2018-11-15
申请号：PCT/EP2018/062168
申请日：2018-05-10
Applicant: DANFOSS POWER SOLUTIONS GMBH & CO OHG
Inventor： REIMER, Markus , WUESTEFELD, Martin , HEIN, Michael , ROZYCKI, Frank
IPC: F16H61/4104
CPC classification number: F16H61/4104 , F16H61/42 , F16H61/46
Abstract: The invention relates to a method for controlling a closed loop hydraulic circuit arrangement (1), said closed loop hydraulic circuit arrangement (1) comprising two fluid working machines (2, 3) that are interconnected by main fluid lines (5, 6), forming a basic closed loop hydraulic circuit and a hydraulic fluid flushing branch (7) extracting hydraulic fluid in the vicinity of a first one of said fluid working machines (2). In operating states in which both fluid working machines (2, 3) operate in a pumping mode, and hydraulic fluid is extracted to said hydraulic fluid flushing branch (7) on the low-pressure side of said first fluid working machine (2) at least the first fluid working machine (2) is influenced in a way to provide a minimum pressure drop ( dp ) across it.
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公开(公告)号：WO2018189153A1
公开(公告)日：2018-10-18
申请号：PCT/EP2018/059116
申请日：2018-04-10
Applicant: DANFOSS POWER SOLUTIONS GMBH & CO OHG
Inventor： MARSCH, Suenje , RASCH, Harry , HAMES, Bernd , SCHUMACHER, Andreas
CPC classification number: F04B49/002 , F04B1/06 , F04B1/295 , F04B1/32 , F04B1/324 , F04B49/00 , F04B49/06 , F04B49/065 , F04B49/08 , F04B53/00
Abstract: The invention relates to a variable displacement hydraulic unit (1) comprising a casing (50), a positionable adjustment element (3) for adjusting the displacement volume of a driving mechanism (2), and a control unit (9) for controlling an adjustment unit (7) featuring an actuator (8) to position the adjustment element (3). The hydraulic unit (1) further comprises an integrated self- sustaining (autarkic) electrical power source (10) that is located in or on the casing (50) and that energizes at least the control unit (9) and the actuator (8).
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Patent Agency Ranking
公开(公告)号：WO2014202345A1
公开(公告)日：2014-12-24
申请号：PCT/EP2014/060897
申请日：2014-05-27
Inventor： DOLE, Alexis , STEIN, Uwe Bernhard Pascal , LAIRD, Stephen Michael
CPC classification number: F01B1/0624 , F01B1/062 , F01B1/0634 , F01B1/0655 , F04B1/0408 , F04B1/0421 , F04B1/047 , F04B1/0536 , F04B39/0005 , F04B39/122 , F04B53/10
Abstract: The invention provides a fluid working machine comprising: a crankshaft (2) which is rotatable about an axis of rotation (3); adjacent first and second groups (5, 6, 8, 10) of valve cylinder devices (13) spaced from each other about the axis of rotation (3), one or each of the first and second groups (5, 6, 8, 10) of valve cylinder devices having first, second and third valve cylinder devices (13) arranged about and extending outwards with respect to the crankshaft (2), the first and third valve cylinder devices being axially offset from each other, the second valve cylinder device being axially offset from the first and third valve cylinder devices and the second valve cylinder device being offset from the first and third valve cylinder devices about the axis of rotation, wherein the second valve cylinder device has an axial extent which overlaps with the axial extent of one, or the axial extents of both, of the first and third valve cylinder devices.
Abstract translation: 本发明提供了一种流体加工机，包括：可围绕旋转轴线（3）旋转的曲轴（2）; 相邻的围绕旋转轴线（3）彼此间隔开的气缸装置（13）的第一和第二组（5,6,8,10），第一组和第二组（5,6,8,10） 10）具有相对于曲轴（2）围绕并向外延伸的第一，第二和第三阀缸装置（13）的阀缸装置，第一和第三阀缸装置彼此轴向偏移，第二阀筒 装置从第一和第三阀芯装置轴向偏移，第二气缸装置绕第一和第三气缸装置绕旋转轴线偏移，其中第二气缸装置具有与轴向范围重叠的轴向范围 一个或两个轴向范围的第一和第三阀缸装置。
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公开(公告)号：WO2014202344A1
公开(公告)日：2014-12-24
申请号：PCT/EP2014/060896
申请日：2014-05-27
Inventor： DOLE, Alexis , STEIN, Uwe Bernhard Pascal
CPC classification number: F01B1/0624 , F01B1/062 , F01B1/0634 , F01B1/0655 , F04B1/0408 , F04B1/0421 , F04B1/047 , F04B1/0536 , F04B39/0005 , F04B39/122 , F04B53/10
Abstract: The invention provides a fluid working machine comprising: a cylinder block (1) having an axial bore (4); a crankshaft (2) which extends within the axial bore (4) and is rotatable about an axis of rotation (3); and first and second valve cylinder devices (13) provided in the cylinder block (1) arranged about and extending outwards with respect to the axial bore (4), the first and second valve cylinder devices (13) being axially offset from each other, the first and second valve cylinder devices (13) being offset from each other about the axis of rotation (3), and the first valve cylinder device having an axial extent which overlaps the axial extent of the second valve cylinder device, wherein the first and second valve cylinder devices (13) comprise first valves (14) having respective first working fluid ports (48, 49), the said respective first working fluid ports (48, 49) of the first valves (14) of the first and second valve cylinder devices (13) being in fluid communication with each other via a common conduit (50, 52) extending within the cylinder block (1).
Abstract translation: 本发明提供了一种流体加工机，包括：具有轴向孔（4）的气缸体（1）; 曲轴（2），其在所述轴向孔（4）内延伸并且可围绕旋转轴线（3）旋转; 以及设置在所述气缸体（1）中的相对于所述轴向孔（4）大致向外延伸的第一和第二阀芯装置（13），所述第一和第二阀芯装置（13）彼此轴向偏移， 所述第一和第二阀芯装置（13）绕所述旋转轴线（3）彼此偏移，并且所述第一阀芯装置具有与所述第二阀芯装置的轴向长度重叠的轴向范围，其中所述第一和第 第二阀缸装置（13）包括具有相应的第一工作流体端口（48,49）的第一阀（14），第一和第二阀的第一阀（14）的所述相应的第一工作流体端口（48,49） 气缸装置（13）通过在气缸体（1）内延伸的公共导管（50,52）彼此流体连通。
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公开(公告)号：WO2023016771A1
公开(公告)日：2023-02-16
申请号：PCT/EP2022/070514
申请日：2022-07-21
Applicant: DANFOSS POWER SOLUTIONS GMBH & CO OHG
Inventor： WESTERGAARD, Erik
Abstract: The invention relates to a method (30) of actuating a variable boom loading arrangement (1) that comprises a variable length boom (2) that can be extended and retracted using a length actuator (3). A first end of the variable length boom (2) is pivotally attached to a frame, and the variable length boom (2) can be pivoted relative to the frame by means of a pivot actuator (5). A second end of the variable length boom (2) is used for handling loads. An input command that is given by an operator is modified if the variable boom loading arrangement (1) reaches a predefined tipping moment, resulting in a modified output command to the actuators (3, 5), so as to avoid a tipping of the variable boom loading arrangement (1). The input command is used to calculate an unmodified commanded direction of the second end of the variable length boom (2) in an external reference frame, in particular in an external Cartesian coordinate reference frame, wherein the modification scheme that is applied to the input command and that results in an modified output command to the actuators depends on the calculated unmodified commanded direction in the external reference frame.
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公开(公告)号：WO2016058797A1
公开(公告)日：2016-04-21
申请号：PCT/EP2015/071824
申请日：2015-09-23
Inventor： DOLE, Alexis , STEIN, Uwe Bernhard Pascal , KUTTLER, Onno
CPC classification number: F04B1/063 , F04B1/066 , F04B49/00 , F04B49/007 , F04B49/22
Abstract: A hydraulic pump (6) comprising: a housing (20) having first and second inlets (100a,100b) and first and second outlets (102a, 102b); a crankshaft (4) extending within the housing (20) and having axially offset first and second cams (62, 64); first and second groups (30, 32) of piston cylinder assemblies provided in the housing (20), each of the said groups (30, 32) having a plurality of piston cylinder assemblies having a working chamber of cyclically varying volume and being in driving relationship with the crankshaft (4); one or more electronically controllable valves (40) associated with the first and second groups (30, 32); and a controller (70) configured to actively control the opening and/or closing of the said electronically controllable valves (40) on each cycle of working chamber volume to thereby control the net displacement of fluid by the first and second groups (30, 32), wherein at least the first group (30) comprises a first piston cylinder assembly in driving relationship with the first cam (62) and a second piston cylinder assembly in driving relationship with the second cam (64), and wherein the first group is configured to receive working fluid from the first inlet (100a) and to output working fluid to the first outlet (102a) and the second group is configured to receive working fluid from the second inlet (100b) and to output working fluid to the second outlet (102b).
Abstract translation: 一种液压泵（6），包括：具有第一和第二入口（100a，100b）和第一和第二出口（102a，102b）的壳体（20） 在所述壳体（20）内延伸并具有轴向偏移的第一和第二凸轮（62,64）的曲轴（4）; 设置在壳体（20）中的活塞气缸组件的第一组和第二组（30,32），每个所述组（30,32）具有多个活塞气缸组件，所述多个活塞气缸组件具有周期性变化体积的工作室，并且正在行驶 与曲轴（4）的关系; 与第一组和第二组（30,32）相关联的一个或多个电子可控阀（40）; 以及控制器（70），其被配置为在每个工作室容积循环上主动地控制所述电子可控阀（40）的打开和/或关闭，从而控制由第一组和第二组（30,32） ），其中至少第一组（30）包括与第一凸轮（62）驱动关系的第一活塞气缸组件和与第二凸轮（64）驱动关系的第二活塞气缸组件，并且其中第一组是 被配置为从第一入口（100a）接收工作流体并将工作流体输出到第一出口（102a），并且第二组构造成从第二入口（100b）接收工作流体并将工作流体输出到第二出口 （102B）。
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公开(公告)号：WO2014191206A1
公开(公告)日：2014-12-04
申请号：PCT/EP2014/059880
申请日：2014-05-14
Inventor： DOLE, Alexis , LAVENDER, Jack Samuel , MCINTYRE, Fergus Robert , EILERS, Jens Dominik Willy
CPC classification number: F04B53/10 , F15D1/02 , F16K31/02 , F16K31/0655 , F16K47/00 , F16L13/14 , F16L15/08
Abstract: The invention to a valve unit (1) for a synthetically commutated fluid working machine, comprising a valve body (19), a movably arranged valve unit (3) and a separate fluid flow influencing unit (13). The fluid flow influencing unit comprises a fluid flow influencing means part (18) and an attachment means part for mechanical connection with the valve body. The attachment means part and the fluid flow influencing unit are connected to each other by a connection means part. The circumferential extent of the attachment means part is larger as compared to the circumferential extent of the connection means part.
Abstract translation: 本发明涉及一种用于合成换向流体加工机械的阀门单元（1），包括阀体（19），可移动地布置的阀单元（3）和单独的流体流动影响单元（13）。 流体流动影响单元包括流体流动影响装置部分（18）和用于与阀体机械连接的附接装置部分。 连接装置部分和流体流动影响单元通过连接装置部分相互连接。 与连接装置部分的圆周范围相比，附接装置部分的圆周范围更大。
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