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    Hydraulic machine
    2.
    发明授权
    Hydraulic machine 有权

    公开(公告)号：US11035351B2

    公开(公告)日：2021-06-15

    申请号：US16254955

    申请日：2019-01-23

    Applicant: Danfoss A/S

    Inventor： Stig Kildegaard Andersen ,  Georg Herborg Enevoldsen ,  Sveinn Porarinsson

    IPC: F04B11/00 ,  F04B1/20 ,  F04B1/2014 ,  F03C1/06 ,  F04B1/2021 ,  F01B3/00

    Abstract: A hydraulic machine is described comprising a first part (1, 4) and a second part (7, 8), wherein the first part (1, 4) and the second part (7, 8) are movable relatively to each other in abutting relation, the first part (1, 4) comprises a pressure chamber (2) having a pressure chamber opening (6) in a contact face (5) contacting a sealing face (9) of the second part (7, 8), the second part (7, 8) comprises a low pressure area (10) connected to a low pressure opening (11) in the sealing face (9) and a high pressure area (12) connected to a high pressure opening (13) in the sealing face (9), wherein during a movement of the first part (1, 4) with respect to the second part (7, 8) in a moving direction (14) the pressure chamber opening (6) comes alternatingly in overlap with the low pressure opening (11) and the high pressure opening (13). Such a machine should be flexible in operation with low risk of damages caused by cavitation. To this end a throttling channel (15) in the second part (7, 8) connects the low pressure area (10) with an area in the sealing face (9) in moving direction in front of the low pressure opening (11).

    Hydraulic device
    3.
    发明授权
    Hydraulic device 有权

    公开(公告)号：US10436184B2

    公开(公告)日：2019-10-08

    申请号：US15017699

    申请日：2016-02-08

    Applicant: Danfoss A/S

    Inventor： Sveinn Porarinsson

    IPC: F04B1/20

    Abstract: A hydraulic device 1 comprises a first member 2 movable relative to a second member 5. In such a device the risk of cavitation noise and cavitation damage should be minimized. To this end said first member 2 having a pressure chamber 3 opening in a face 7 of said first member 2 which face 7 is in contact with a contact face 6 of said second member 5, said second member 5 having a low pressure area 9, wherein a throttling flow path is provided in a groove 11 connecting said pressure chamber 3 and said low pressure area 9 when pressure chamber 3 is approaching said low pressure area 9, characterized in that a throttling resistance of said groove 11 increases in a direction of the flow through said groove 11.

    HYDRAULIC DEVICE
    5.
    发明申请
    HYDRAULIC DEVICE 审中-公开
    液压装置

    公开(公告)号：US20160230749A1

    公开(公告)日：2016-08-11

    申请号：US15017699

    申请日：2016-02-08

    Applicant: Danfoss A/S

    Inventor： Sveinn Porarinsson

    IPC: F04B1/20

    CPC classification number: F04B1/2042 ,  F04B1/2021

    Abstract: A hydraulic device 1 comprises a first member 2 movable relative to a second member 5. In such a device the risk of cavitation noise and cavitation damage should be minimized. To this end said first member 2 having a pressure chamber 3 opening in a face 7 of said first member 2 which face 7 is in contact with a contact face 6 of said second member 5, said second member 5 having a low pressure area 9, wherein a throttling flow path is provided in a groove 11 connecting said pressure chamber 3 and said low pressure area 9 when pressure chamber 3 is approaching said low pressure area 9, characterized in that a throttling resistance of said groove 11 increases in a direction of the flow through said groove 11.

    Abstract translation: 液压装置1包括可相对于第二构件5移动的第一构件2.在这种装置中，空气噪声和空化损伤的风险应当被最小化。 为此，具有在所述第一构件2的面7的面7上开口的压力室3的第一构件2与所述第二构件5的接触面6接触，所述第二构件5具有低压区域9， 其中在压力室3接近所述低压区域9时，在连接所述压力室3和所述低压区域9的槽11中设置有节流流路，其特征在于，所述槽11的节流阻力沿着 流过所述凹槽11。

    HYDRAULIC MACHINE
    8.
    发明申请
    HYDRAULIC MACHINE 审中-公开

    公开(公告)号：US20190234388A1

    公开(公告)日：2019-08-01

    申请号：US16254955

    申请日：2019-01-23

    Applicant: Danfoss A/S

    Inventor： Stig Kildegaard Andersen ,  Georg Herborg Enevoldsen ,  Sveinn Porarinsson

    IPC: F04B1/20 ,  F03C1/06

    CPC classification number: F04B1/2014 ,  F03C1/0644

    Abstract: A hydraulic machine is described comprising a first part (1, 4) and a second part (7, 8), wherein the first part (1, 4) and the second part (7. 8) are movable relatively to each other in abutting relation, the first part (1, 4) comprises a pressure chamber (2) having a pressure chamber opening (6) in a contact face (5) contacting a sealing face (9) of the second part (7, 8), the second part (7, 8) comprises a low pressure area (10) connected to a low pressure opening (11) in the sealing face (9) and a high pressure area (12) connected to a high pressure opening (13) in the sealing face (9), wherein during a movement of the first part (1, 4) with respect to the second part (7, 8) in a moving direction (14) the pressure chamber opening (6) comes alternatingly in overlap with the low pressure opening (11) and the high pressure opening (13). Such a machine should be flexible in operation with low risk of damages caused by cavitation. To this end a throttling channel (15) in the second part (7. 8) connects the low pressure area (10) with an area in the sealing face (9) in moving direction in front of the low pressure opening (11).

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