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    CUTTING ROLLER
    1.
    发明申请
    CUTTING ROLLER 有权

    公开(公告)号：US20210262292A1

    公开(公告)日：2021-08-26

    申请号：US17261320

    申请日：2019-06-25

    Applicant: HYDAC TECHNOLOGY GMBH

    Inventor： Peter KLOFT ,  Jörg MEYER

    IPC: E21B10/12 ,  E21B10/25 ,  E21D9/10

    Abstract: 1. Cutting roller.
    2. A cutting roller having an axle (2), on which a cutting ring (4) is rotatably guided by means of a bearing device (10, 12), which is sealed against the environment by means of a sealing device (28, 30), is characterized in that by a compensating device (40) any differential pressure between the bearing device (10, 12) and the environment is compensable.

    DAMPING DEVICE
    2.
    发明申请
    DAMPING DEVICE 有权

    公开(公告)号：US20210207753A1

    公开(公告)日：2021-07-08

    申请号：US17053136

    申请日：2019-04-12

    Applicant: HYDAC TECHNOLOGY GMBH

    Inventor： Herbert BALTES ,  Peter KLOFT

    IPC: F16L55/027 ,  F04B11/00

    Abstract: A damping device, in particular for damping or preventing pressure surges, such as pulsations, in hydraulic supply circuits, preferably in the form of a silencer, having a damping housing (2) encompassing a damping chamber (10), wherein said damping housing (2) has at least one fluid inlet (6) and at least one fluid outlet (8) as well as a fluid receiving chamber extending between the fluid inlet (6) and the fluid outlet (8), wherein during operation of the device a fluid flow coming from the fluid inlet (6) passes through the damping chamber (10) towards the fluid outlet (8) and wherein a wall part of the fluid receiving chamber extends as a guide element (16) in at least one direction of extension transverse to the direction of the fluid flow, is characterized in that in the damping chamber (10) several guide elements (16) are provided, against which the fluid can flow and which alter the flow velocity in certain areas.

    BELLOWS ACCUMULATOR
    4.
    发明申请
    BELLOWS ACCUMULATOR 有权

    公开(公告)号：US20220034334A1

    公开(公告)日：2022-02-03

    申请号：US17275745

    申请日：2019-09-09

    Applicant: HYDAC TECHNOLOGY GMBH

    Inventor： Herbert BALTES ,  Peter KLOFT

    IPC: F15B1/10

    Abstract: A bellows accumulator, consisting of at least one accumulator housing (2) and having a separating bellows (20) which is movably arranged in the accumulator housing (2) and has a plurality of bellows folds and separates two media spaces (8, 22) from one another, wherein the stationary open end of said separating bellows (20) is fixed to the accumulator housing (2) by means of a securing device (24) and wherein said separating bellows (20) has at its movable other end a closure part (36) having a guide device (40) by means of which the closure part (36) is guided in the accumulator housing (2), is characterized in that the closure part (36) has, in addition to the guide device (40), a sealing device which, at least in the one extended end position of the separating bellows (20), separates a fluid space (8), in which the bellows folds are arranged in the accumulator housing (2), from a fluid port (12) in the accumulator housing (2) and, at least in some of the other working positions, releases this fluid connection.

    PRESSURE ACCUMULATOR HAVING A MONITORING DEVICE
    5.
    发明申请
    PRESSURE ACCUMULATOR HAVING A MONITORING DEVICE 有权

    公开(公告)号：US20210115948A1

    公开(公告)日：2021-04-22

    申请号：US16981784

    申请日：2019-03-11

    Applicant: HYDAC TECHNOLOGY GMBH

    Inventor： Herbert BALTES ,  Peter KLOFT ,  Petra JOCHUM ,  Daniel RAU

    IPC: F15B1/10

    Abstract: A pressure accumulator having an accumulator housing (10) in which a movable separating element (16) separates a gas room (12) filled with a working gas from a fluid room (14) in a fluid-sealed manner, wherein a monitoring device (46) is provided, which, in the event of a fault impairing the sealing effect of the separating element (16), provides an optically discernible indication and which has an inspection window (54), through which an indicator can be observed, which is connected to the gas room (12) and whose optical properties change discernibly when wetted with the fluid, is characterized in that the indicator changing its optical properties is accommodated in a capsule (48), the capsule wall (50) of which is permeable to the passage of the fluid and which is arranged between the inspection window (54) and the separating element (16) in the accumulator housing (10).

    PISTON ACCUMULATOR
    7.
    发明公开
    PISTON ACCUMULATOR 审中-公开

    公开(公告)号：US20240011510A1

    公开(公告)日：2024-01-11

    申请号：US18022354

    申请日：2021-08-11

    Applicant: HYDAC TECHNOLOGY GMBH

    Inventor： Peter KLOFT ,  Jens Holger KÖHNE

    IPC: F15B1/24

    CPC classification number: F15B1/24 ,  F15B2201/31

    Abstract: Disclosed is a piston accumulator having an accumulator housing (10) and a separator piston (12), which can be moved longitudinally in the accumulator housing (10) and separates two media spaces (14, 16) from each other, which is characterized in that an end-position cushioning (28) is provided between the separator piston (12) and the accumulator housing (10), which end-position cushioning (28) has at least one gap (66, 72) that narrows as the motion of the separator piston (12) increases in the direction of its end position and in that way builds up a flow resistance, which inhibits the motion of the separator piston (12), and which is introduced as a recess (64, 78) into at least one of the adjacent end faces (30, 56) of the separator piston (12) and the accumulator housing (10).

    PISTON ACCUMULATOR
    8.
    发明申请
    PISTON ACCUMULATOR 有权

    公开(公告)号：US20220372996A1

    公开(公告)日：2022-11-24

    申请号：US17774516

    申请日：2020-10-29

    Applicant: HYDAC TECHNOLOGY GMBH

    Inventor： Herbert BALTES ,  Peter KLOFT

    IPC: F15B1/24

    Abstract: A piston accumulator having an accumulator housing (4) and a separating piston (10), which is guided longitudinally displaceable therein, which separates two media chambers (12, 14) from each other and which has a dual sealing system (16), wherein one of the sealing systems (18) faces one media chamber (12) and the other sealing system (20) faces the other media chamber (14), wherein at the location (58) a compensation device is at least partially accommodated in the separating piston (10) between the two sealing systems (18, 20), which compensation device enables hydrostatic pressure compensation between the two sealing systems (18, 20) to prevent an undesirable pressure buildup during operation.

    HYDRAULIC ACCUMULATOR
    9.
    发明申请
    HYDRAULIC ACCUMULATOR 有权

    公开(公告)号：US20210222708A1

    公开(公告)日：2021-07-22

    申请号：US17256338

    申请日：2019-06-14

    Applicant: HYDAC TECHNOLOGY GMBH

    Inventor： Frank BAUER ,  Peter KLOFT

    IPC: F15B1/24

    Abstract: A hydraulic accumulator, in particular in the form of a piston accumulator, comprising an accumulator housing (10) and a separating element (20) arranged therein, in particular in the form of a piston, which separates a fluid side (22) from a gas side (24), is characterized in that at least the gas side (24) can be inspected, at least in part, by means of at least one sight glass (34, 36) which is fixed in the accumulator housing (10).

    HYDROPNEUMATIC PISTON ACCUMULATOR
    10.
    发明申请
    HYDROPNEUMATIC PISTON ACCUMULATOR 审中-公开

    公开(公告)号：US20200309158A1

    公开(公告)日：2020-10-01

    申请号：US16310878

    申请日：2017-06-19

    Applicant: HYDAC TECHNOLOGY GMBH

    Inventor： Peter KLOFT ,  Herbert BALTES ,  Alexander ALBERT

    IPC: F15B1/24

    Abstract: A hydropneumatic piston accumulator, with an accumulator housing (1) defining a housing longitudinal axis (11), in which a piston (9) is longitudinally movable between two housing covers (5, 7) positioned opposite each other. In the housing (1), the piston (9) separates a working chamber (13) for a compressible medium, such as a working gas, from a working chamber (15) for an incompressible medium, such as hydraulic fluid, and comprises at least a part (55) of a displacement measurement device continuously determining each position of the piston (9) in the housing (1). The invention is characterised in that a rod-like guide (29, 57) is stationarily positioned in the accumulator housing (1) and passes all the way through the piston (9) in each of its displacement positions in the accumulator housing (1), the piston (9) being movably guided therealong until it reaches the stop on one of the two housing covers (5, 7), and in that the piston (9) is sealed against this guide (29, 57) using a sealing device (49, 50).

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