公开(公告)号：US20220235749A1

公开(公告)日：2022-07-28

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

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).

公开(公告)号：US10385887B2

公开(公告)日：2019-08-20

申请号：US15017713

申请日：2016-02-08

Applicant: Danfoss A/S

Inventor： Stig Kildegaard Andersen ,  Henry Madsen Møller ,  Palle Olsen ,  Poul Erik Hansen

IPC: F15B15/14 ,  F04B1/10 ,  F04B1/20

Abstract: A hydraulic machine is provided comprising a cylinder unit (3) having a plurality of cylinders (4a, 4b) which are located on a circle line around an axis of rotation of said cylinder unit (3), a valve plate (6) located at an axial end of said cylinder unit (3) and having a through-going opening (8) for each cylinder (4a, 4b), and a port plate, said valve plate (6) and said port plate resting against each other in sliding contact at a contact face, wherein a pressure in each cylinder (4a, 4b) acts on a pressure area on a side of said valve plate (6) opposite said port plate. In such a hydraulic machine the risk of leaking should be kept small. To this end said pressure area (17) deviates from a circular form.

公开(公告)号：US20160230788A1

公开(公告)日：2016-08-11

申请号：US15017713

申请日：2016-02-08

Applicant: Danfoss A/S

Inventor： Stig Kildegaard Andersen ,  Henry Madsen Møller ,  Palle Olsen ,  Poul Erik Hansen

IPC: F15B15/14

CPC classification number: F15B15/1428 ,  F04B1/10 ,  F04B1/20 ,  F04B1/2014 ,  F04B1/2035 ,  F04B1/2042

Abstract: A hydraulic machine is provided comprising a cylinder unit (3) having a plurality of cylinders (4a, 4b) which are located on a circle line around an axis of rotation of said cylinder unit (3), a valve plate (6) located at an axial end of said cylinder unit (3) and having a through-going opening (8) for each cylinder (4a, 4b), and a port plate, said valve plate (6) and said port plate resting against each other in sliding contact at a contact face, wherein a pressure in each cylinder (4a, 4b) acts on a pressure area on a side of said valve plate (6) opposite said port plate. In such a hydraulic machine the risk of leaking should be kept small. To this end said pressure area (17) deviates from a circular form.

Abstract translation: 提供了一种液压机，包括一个气缸单元（3），该气缸单元（3）具有多个气缸（4a，4b），它们位于围绕所述气缸单元（3）的旋转轴线的圆周线上;阀板（6） 所述气缸单元（3）的轴向端部并且具有用于每个气缸（4a，4b）的通过开口（8）和端口板，所述阀板（6）和所述端口板滑动地彼此抵靠 接触面，其中每个气缸（4a，4b）中的压力作用在与所述端口板相对的所述阀板（6）侧的压力区域上。 在这种液压机中，泄漏的危险应小一些。 为此，所述压力区域（17）偏离圆形。

公开(公告)号：US20160230761A1

公开(公告)日：2016-08-11

申请号：US15017764

申请日：2016-02-08

Applicant: Danfoss A/S

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

IPC: F04C18/34

CPC classification number: F04B1/184 ,  F04B1/10 ,  F04B1/145 ,  F04B1/20 ,  F04B1/2014 ,  F04B53/16

Abstract: A hydraulic arrangement (1) is provided comprising a pressure exchanger (2) having an axis (3) of rotation, and a booster pump (4), said pressure exchanger (2) and said booster pump (4) being connected to each other. Such a hydraulic arrangement should have a good efficiency. To this end a single connection flange (5) is provided between said pressure exchanger (2) and the booster pump (4).

Abstract translation: 提供一种液压装置（1），其包括具有旋转轴线（3）的压力交换器（2）和增压泵（4），所述压力交换器（2）和所述增压泵（4）彼此连接 。 这种液压装置应该具有良好的效率。 为此，在所述压力交换器（2）和增压泵（4）之间提供单个连接凸缘（5）。

公开(公告)号：US11892005B2

公开(公告)日：2024-02-06

申请号：US17832797

申请日：2022-06-06

Applicant: Danfoss A/S

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

IPC: F04D29/04 ,  F04D29/08 ,  F04D29/046 ,  F16J15/20 ,  B33Y80/00

CPC classification number: F04D29/0465 ,  F04D29/086 ,  F16J15/20 ,  B33Y80/00

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).

公开(公告)号：US20160377080A1

公开(公告)日：2016-12-29

申请号：US15187899

申请日：2016-06-21

Applicant: Danfoss A/S

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

IPC: F04C18/32

CPC classification number: F04C18/32 ,  F01C21/108 ,  F04C2/3442 ,  F04C15/0023

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).

Abstract translation: 描述了包括定子（2）和转子（3）的叶片式电池​​机（1），所述转子（3）具有轴向位于定子（2）的内部（5）上的径向位移的叶片（4） 与转子（3）的定子（2）和位于转子（3）的每个轴向端处的侧壁（7）一起，其中的体积在所述转子的旋转期间改变的工作室（6）在 至少一个侧壁（7），其具有环形（9）形式的插入件。 这样的机器应该是简单的结构。 为此，所述环（9）包括中心孔（10）。

公开(公告)号：US20230043692A1

公开(公告)日：2023-02-09

申请号：US17878991

申请日：2022-08-02

Applicant: Danfoss A/S

Inventor： Stig Kildegaard Andersen ,  Poul Erik Hansen ,  Georg Herborg Enevoldsen ,  Kevin Evald

IPC: F04F13/00

Abstract: A pressure exchanger with a valve system includes a cylinder barrel (1), two valve plates (2) and two port plates (3, 4), wherein the cylinder barrel (1) has at least one cylinder (7) which accommodates a piston (8). The objective is to provide a pressure exchanger with low wear and a low maintenance effort. This objective is solved by a pressure exchanger including a piston (8) braking system and that the piston (8) includes a pressure relief arrangement.

公开(公告)号：US11067100B2

公开(公告)日：2021-07-20

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 ,  F03C1/34 ,  F04B53/06 ,  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).

公开(公告)号：US10711780B2

公开(公告)日：2020-07-14

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 ,  F16J1/09 ,  F04B1/0448 ,  F04B49/10 ,  F04B53/14 ,  F04B1/124 ,  F04B1/0408 ,  F16J15/16 ,  F04B53/00 ,  F15B13/08 ,  F15B15/14 ,  F15B15/12

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).

公开(公告)号：US12270422B2

公开(公告)日：2025-04-08

申请号：US17878991

申请日：2022-08-02

Applicant: Danfoss A/S

Inventor： Stig Kildegaard Andersen ,  Poul Erik Hansen ,  Georg Herborg Enevoldsen ,  Kevin Evald

IPC: F04F13/00

Abstract: A pressure exchanger with a valve system includes a cylinder barrel (1), two valve plates (2) and two port plates (3, 4), wherein the cylinder barrel (1) has at least one cylinder (7) which accommodates a piston (8). The objective is to provide a pressure exchanger with low wear and a low maintenance effort. This objective is solved by a pressure exchanger including a piston (8) braking system and that the piston (8) includes a pressure relief arrangement.