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    HYDRAULIC MACHINE
    12.
    发明申请
    HYDRAULIC MACHINE 有权

    公开(公告)号：US20230080903A1

    公开(公告)日：2023-03-16

    申请号：US17832797

    申请日：2022-06-06

    Applicant: Danfoss A/S

    Inventor： Stig Kildegaard Andersen ,  Poul Erik Hansen ,  Achuthan Babu

    IPC: F04D29/046 ,  F16J15/20 ,  F04D29/08

    Abstract: A hydraulic machine includes a first member (1) having a first structure (2) for a hydraulic medium opening in a first interface surface (3) and a second member having a second structure for the hydraulic medium opening in a second interface surface is described, the first interface surface (3) being in contact with the second interface surface, wherein at least one of the members (1) is provided with a support element (6) surrounding the member (1). Such a machine should have a good efficiency. To this end the support element (6) has a strength varying in circumferential direction around the member (1) and/or in thickness direction in a middle region of the member (1).

    Vane cell machine with centric bore in ring insert in side wall
    13.
    发明授权
    Vane cell machine with centric bore in ring insert in side wall 有权

    公开(公告)号：US10352322B2

    公开(公告)日：2019-07-16

    申请号：US15187899

    申请日：2016-06-21

    Applicant: Danfoss A/S

    Inventor： Stig Kildegaard Andersen ,  Poul Erik Hansen ,  Erik Haugaard

    IPC: F04C15/00 ,  F01C21/10 ,  F04C18/32 ,  F04C2/344

    Abstract: A vane cell machine (1) is described comprising a stator (2) and a rotor (3), said rotor (3) having radially displaceable vanes (4) bearing on an inside (5) of the stator (2) and bordering, together with the rotor (3), the stator (2), and a side wall (7) at each axial end of the rotor (3), work chambers (6) the volume of which changes during a rotation of said rotor, at least one side wall (7) bearing an insert in form of a ring (9). Such a machine should be of simple construction. To this end, said ring (9) comprises a centric bore (10).

    Pressure exchanger
    15.
    发明授权
    Pressure exchanger 有权

    公开(公告)号：US11920573B2

    公开(公告)日：2024-03-05

    申请号：US17582149

    申请日：2022-01-24

    Applicant: Danfoss A/S

    Inventor： Poul Erik Hansen ,  Tommi Kolb

    IPC: F04B1/2064 ,  F04B1/2035 ,  F04F13/00

    CPC classification number: F04B1/2064 ,  F04B1/2035 ,  F04F13/00

    Abstract: A pressure exchanger (1) including a housing (2), a drive shaft (3) and a cylinder drum (4) rotatably arranged in the housing (2) is described, the cylinder drum (4) including two front faces and at least one cylinder (5) between the front faces, wherein the housing (2) includes a port flange (7, 8) at each end of the cylinder drum (4) and at least at one end of the cylinder drum (4) a pressure shoe (18) is arranged between the cylinder drum (4) and the port flange of this end. Such a pressure exchanger should be operated in a cost-effective manner. To this end an adjustable stop arrangement (19) is arranged between the pressure shoe (18) and the cylinder drum (4).

    DEVICE FOR SUPPLYING PORTS TO A MACHINE SECTION OF A HYDRAULIC MACHINE ARRANGEMENT
    16.
    发明申请
    DEVICE FOR SUPPLYING PORTS TO A MACHINE SECTION OF A HYDRAULIC MACHINE ARRANGEMENT 审中-公开

    公开(公告)号：US20200370570A1

    公开(公告)日：2020-11-26

    申请号：US16879285

    申请日：2020-05-20

    Applicant: Danfoss A/S

    Inventor： Georg Enevoldsen ,  Poul Erik Hansen ,  Frank Holm Iversen

    IPC: F15B3/00 ,  F15B20/00

    Abstract: The invention relates to a device for supplying ports to a machine section (26) of a hydraulic machine arrangement (40), the device (10) comprising a low-pressure inlet port (12), a leakage inlet (16), a low-pressure chamber (18) having a low-pressure opening (22) for establishing fluid communication with the machine section (26), a high-pressure outlet port (14), and a high-pressure chamber (20) that is in fluid communication with the high-pressure outlet port (14), the high-pressure chamber (20) having a high-pressure opening (24) for establishing fluid communication with the machine section (26), wherein the low-pressure inlet port (12) is in fluid communication with the low-pressure chamber (18), wherein a leakage path (36) extends from the high-pressure chamber (20) through the machine section (26) to the leakage inlet (16), characterized in that the device (10) further comprises a control valve member (28) connecting the leakage inlet (16) to the low-pressure chamber (18), wherein the control valve member (28) transfers to an open state when a pressure in the leakage inlet (16) with respect to a pressure in the low-pressure chamber (18) is higher than a predefined control pressure threshold. The device (10) reduces cavitation in hydraulic machine arrangements (40).

    HYDRAULIC MACHINE
    19.
    发明申请
    HYDRAULIC MACHINE 审中-公开
    液压机

    公开(公告)号：US20160377079A1

    公开(公告)日：2016-12-29

    申请号：US15187982

    申请日：2016-06-21

    Applicant: Danfoss A/S

    Inventor： Stig Kildegaard Andersen ,  Poul Erik Hansen ,  Erik Haugaard

    IPC: F04C15/00 ,  F16J15/16 ,  F04B53/00

    CPC classification number: F04C15/0007 ,  F04B1/0408 ,  F04B1/0448 ,  F04B1/124 ,  F04B49/10 ,  F04B53/00 ,  F04B53/143 ,  F15B13/0828 ,  F15B15/12 ,  F15B15/1452 ,  F15B15/1461 ,  F16J1/09 ,  F16J15/16

    Abstract: A hydraulic machine is described having a first part (2) and a second part (3) moveable relative to said first part (3), one of said first part (2) and said second part (3) having a first land (9) resting against the other one of said second part (3) and said first part (2), having a predetermined first height (H1), and being arranged between a high pressure area (7) and a low pressure area (8). Such a machine should have a long working life. To this end a second land (10) having a predetermined second height (H2) smaller than said first height (H1) is located adjacent to said first land (9).

    Abstract translation: 描述了一种具有第一部分（2）和第二部分（3）的液压机械，所述第一部分（2）和第二部分（3）相对于所述第一部分（3）可移动，所述第一部分（2）和所述第二部分（3）中的一个具有第一平台 ）抵靠所述第二部分（3）和所述第一部分（2）中的另一个，具有预定的第一高度（H1），并且布置在高压区域（7）和低压区域（8）之间。 这样的机器应该有很长的使用寿命。 为此，具有小于所述第一高度（H1）的预定第二高度（H2）的第二平台（10）位于所述第一平台（9）附近。

    HYDRAULIC MACHINE ARRANGEMENT
    20.
    发明申请
    HYDRAULIC MACHINE ARRANGEMENT 审中-公开
    液压机械装置

    公开(公告)号：US20160377070A1

    公开(公告)日：2016-12-29

    申请号：US15187940

    申请日：2016-06-21

    Applicant: Danfoss A/S

    Inventor： Stig Kildegaard Andersen ,  Poul Erik Hansen ,  Erik Haugaard

    IPC: F04B19/22

    CPC classification number: F04B19/22 ,  F03C1/06 ,  F04B1/12 ,  F04B49/10 ,  F04B2201/0803 ,  F04F13/00

    Abstract: A hydraulic machine arrangement (1) is described having a housing (5), a working section and a hollow inside said housing (5), a supply port arrangement LPin, HPin, LPout connected to said working area, and a leakage path (7) between said working section and said hollow. It should be possible to detect wear with simple means. To this end, said housing (5) is provided with a leakage port (8) connected to said hollow.

    Abstract translation: 一种液压机器装置（1）被描述为在所述壳体（5）内部具有壳体（5），工作部分和中空部分，连接到所述工作区域的供应端口布置LPin，HPin，LPout和泄漏路径（7 ）在所述工作部分和所述中空部分之间。 应该可以用简单的手段检测磨损。 为此，所述壳体（5）设置有连接到所述中空部的泄漏口（8）。

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