Hydraulic pressure intensifier
    1.
    发明授权

    公开(公告)号:US10920796B2

    公开(公告)日:2021-02-16

    申请号:US15909076

    申请日:2018-03-01

    Abstract: A hydraulic pressure intensifier (1) is described comprising a housing (2) having a low pressure chamber (3) and a high pressure chamber (4), force transmitting means (5) between the low pressure chamber (3) and the high pressure chamber (4), and a switching valve (8) connecting the low pressure chamber (3) to a first pressure or to a second pressure different from the first pressure. It is intended to have a large volume on the high pressure side of the pressure intensifier. To this end the switching valve (8) is controlled by a pilot valve 18.

    Hydraulic actuator with pressure amplifier

    公开(公告)号:US10895270B2

    公开(公告)日:2021-01-19

    申请号:US16347013

    申请日:2017-10-12

    Abstract: A hydraulic actuator (1) is disclosed comprising a cylinder housing (2), a piston (5) with a piston rod (6) being displaceably arranged inside the cylinder housing (2) and a pressure amplifier (10) comprising an inlet section (18) with a pressure inlet port (20), an active section (19) with a high pressure outlet port (22), a low pressure chamber (32) and a high pressure chamber (38a). It is an objective of the invention to provide a hydraulic actuator (1) with a modular pressure amplifier (10). To this end, the inlet section (18) is arranged inside the piston rod (6), and wherein the low pressure chamber (32) is stationarily arranged relative to the inlet section (18).

    HYDRAULIC ACTUATOR ARRANGEMENT
    3.
    发明申请

    公开(公告)号:US20210262496A9

    公开(公告)日:2021-08-26

    申请号:US16853824

    申请日:2020-04-21

    Abstract: A hydraulic actuator arrangement (1) is described comprising a hydraulic actuator having a pressure chamber (2), a cylinder (3) in a cylinder housing (4), and a piston (5) connected to a piston rod, a hydraulic pump (7) connected to the pressure chamber (2) and an electric motor (8) driving the hydraulic pump (7), wherein the pump (7) and the motor (8) are arranged within the actuator. Such an actuator arrangement should have many application possibilities. To this end, a hydraulic pressure amplifier (10) is arranged between the hydraulic pump (7) and the pressure chamber (2).

    HYDRAULIC PRESSURE AMPLIFIER ARRANGEMENT
    4.
    发明申请

    公开(公告)号:US20190120258A1

    公开(公告)日:2019-04-25

    申请号:US16153068

    申请日:2018-10-05

    Inventor: Peter Zavadinka

    Abstract: A hydraulic pressure amplifier arrangement (1) is described comprising a supply port (A1), a pressure outlet (A2) connected to the supply port via check valve means (3), an intensifier section (5) having a high pressure piston (6) in a high pressure cylinder (7), a low pressure piston (8) in a low pressure cylinder (9) and connected to the high pressure piston (6), and a control valve (12) controlling a pressure in the low pressure cylinder (9), wherein the control valve (12) comprises a hydraulically actuated valve element (13). Such a pressure amplifier arrangement should have a good operational behavior in a cost effective manner. To this end the control valve (12) comprises spring means 16 acting on the valve element (1) in a direction towards a starting position of the control valve.

    PRESSURE AMPLIFIER
    5.
    发明申请
    PRESSURE AMPLIFIER 审中-公开

    公开(公告)号:US20180252240A1

    公开(公告)日:2018-09-06

    申请号:US15909023

    申请日:2018-03-01

    CPC classification number: F15B3/00 F04B7/0225 F04B9/1056 F15B2201/00

    Abstract: A pressure amplifier (1) is described comprising a housing (2), an amplification piston (5) in the housing (2) having a high pressure area (9) in a high pressure chamber (5) and a low pressure area (8) in a low pressure chamber (3), and a switching valve (11) having a pressured control valve element having a larger pressure area (16) and a small pressure area (17). Such a pressure amplifier should have a high operating frequency. To this end the valve element (10) and the amplification piston (5) are located in a same bore (3, 4) in the housing (2).

    HYDRAULIC ACTUATOR ARRANGEMENT
    6.
    发明申请

    公开(公告)号:US20200340502A1

    公开(公告)日:2020-10-29

    申请号:US16853824

    申请日:2020-04-21

    Abstract: A hydraulic actuator arrangement (1) is described comprising a hydraulic actuator having a pressure chamber (2), a cylinder (3) in a cylinder housing (4), and a piston (5) connected to a piston rod, a hydraulic pump (7) connected to the pressure chamber (2) and an electric motor (8) driving the hydraulic pump (7), wherein the pump (7) and the motor (8) are arranged within the actuator. Such an actuator arrangement should have many application possibilities. To this end, a hydraulic pressure amplifier (10) is arranged between the hydraulic pump (7) and the pressure chamber (2).

    HYDRAULIC PRESSURE AMPLIFIER ARRANGEMENT
    7.
    发明申请

    公开(公告)号:US20200325915A1

    公开(公告)日:2020-10-15

    申请号:US16843992

    申请日:2020-04-09

    Abstract: A hydraulic pressure amplifier arrangement (1) is described comprising a supply port (A1), a pressure outlet (A2) connected to the supply port via check valve means (3), a tank port (B1), an intensifier section (5) having a high pressure piston (6) in a high pressure cylinder (7) which is connected to the pressure outlet (A2), a low pressure piston (8) in a low pressure cylinder (9) and connected to the high pressure piston (6), an intermediate space (11) between the high pressure piston (6) and the low pressure piston (8), a control valve (12) controlling a pressure in the low pressure cylinder (9), and a feeder arrangement of the intensifier section (5) including an input connection (19) connected to the supply port (A1) and a return connection (20) connected to the tank port (B1). Such a pressure amplifier arrangement should have a simple construction. To this end the feeder arrangement (19, 20) comprises throttling means (21).

    DOUBLE ACTING HYDRAULIC PRESSURE INTENSIFIER

    公开(公告)号:US20180252242A1

    公开(公告)日:2018-09-06

    申请号:US15909222

    申请日:2018-03-01

    CPC classification number: F15B3/00 F04B7/0225 F04B9/113 F04B53/144

    Abstract: A double acting hydraulic pressure intensifier (1) is described comprising a housing (2), a first piston arrangement (7) having a first high pressure piston (8) in a first high pressure chamber (3) in the housing (2) and a first low pressure piston (9) in a first low pressure chamber (5) of the housing (2), a second piston arrangement (10), having a second high pressure piston (11) in a second high pressure chamber (4) in the housing (2) and a second low pressure piston (12) in a second low pressure chamber (6) in the housing (2), and a switching valve (14) having a valve element (15). Such a pressure intensifier should be made compact. To this end the switching valve (14) is located between the first piston arrangement (7) and the second piston arrangement (10).

    Hydraulic actuator arrangement
    9.
    发明授权

    公开(公告)号:US11454260B2

    公开(公告)日:2022-09-27

    申请号:US16853824

    申请日:2020-04-21

    Abstract: A hydraulic actuator arrangement (1) is described comprising a hydraulic actuator having a pressure chamber (2), a cylinder (3) in a cylinder housing (4), and a piston (5) connected to a piston rod, a hydraulic pump (7) connected to the pressure chamber (2) and an electric motor (8) driving the hydraulic pump (7), wherein the pump (7) and the motor (8) are arranged within the actuator. Such an actuator arrangement should have many application possibilities. To this end, a hydraulic pressure amplifier (10) is arranged between the hydraulic pump (7) and the pressure chamber (2).

    Pressure amplifier
    10.
    发明授权

    公开(公告)号:US11060532B2

    公开(公告)日:2021-07-13

    申请号:US15909023

    申请日:2018-03-01

    Abstract: A pressure amplifier (1) is described comprising a housing (2), an amplification piston (5) in the housing (2) having a high pressure area (9) in a high pressure chamber (5) and a low pressure area (8) in a low pressure chamber (3), and a switching valve (11) having a pressured control valve element having a larger pressure area (16) and a small pressure area (17). Such a pressure amplifier should have a high operating frequency. To this end the valve element (10) and the amplification piston (5) are located in a same bore (3, 4) in the housing (2).

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