公开(公告)号：US20230375015A1

公开(公告)日：2023-11-23

申请号：US18031449

申请日：2021-10-13

Applicant: Bucher Hydraulics GmbH

Inventor： Gerd Salah ,  Steffen Hartmann

IPC: F15B21/08 ,  F15B13/02

CPC classification number: F15B21/08 ,  F15B13/02

Abstract: A pilot control unit is for at least one valve drive of a hydraulic valve with a valve slide. The valve slide can be adjusted by the valve drive, in order to supply hydraulic lines with hydraulic fluid through the hydraulic valve. The pilot control unit is set up to supply electronics and a power end stage for actuating an electrical actuator of the valve drive with electrical energy and operating commands and there is a parametrization module in the pilot control unit for this purpose, in which operating parameters for the operation of the at least one hydraulic valve by the valve drive thereof are stored.

公开(公告)号：US20230167918A1

公开(公告)日：2023-06-01

申请号：US17910954

申请日：2021-03-02

Applicant: Bucher Hydraulics GmbH

Inventor： Gerd Salah ,  Steffen Hartmann

IPC: F16K31/04

CPC classification number: F16K31/046

Abstract: Techniques involve a hydraulic valve module having at least one hydraulic valve with a valve slide which can be adjusted by way of an electric actuator in order to supply hydraulic lines with hydraulic liquid by way of the hydraulic valve. The hydraulic valve module has a controller and an electric energy store. The controller and the electric energy store are set up to move the valve slide out of every possible valve slide position into a deactivation position by way of the electric actuator and energy which is stored in the electric energy store. This allows the safe operation of hydraulic valves without a restoring spring, wherein valves of this type and the actuators thereof can be of smaller and less expensive construction than in the case of conventional valves with a restoring spring.

公开(公告)号：US12044328B2

公开(公告)日：2024-07-23

申请号：US17910954

申请日：2021-03-02

Applicant: Bucher Hydraulics GmbH

Inventor： Gerd Salah ,  Steffen Hartmann

IPC: F16K31/04 ,  F15B13/10

CPC classification number: F16K31/046 ,  F15B13/10

Abstract: Techniques involve a hydraulic valve module having at least one hydraulic valve with a valve slide which can be adjusted by way of an electric actuator in order to supply hydraulic lines with hydraulic liquid by way of the hydraulic valve. The hydraulic valve module has a controller and an electric energy store. The controller and the electric energy store are set up to move the valve slide out of every possible valve slide position into a deactivation position by way of the electric actuator and energy which is stored in the electric energy store. This allows the safe operation of hydraulic valves without a restoring spring, wherein valves of this type and the actuators thereof can be of smaller and less expensive construction than in the case of conventional valves with a restoring spring.

公开(公告)号：US20240229968A9

公开(公告)日：2024-07-11

申请号：US18490144

申请日：2023-10-19

Applicant: Bucher Hydraulics GmbH

Inventor： Gerd Salah

IPC: F16K37/00 ,  F16K31/04

CPC classification number: F16K37/0083 ,  F16K31/04

Abstract: Techniques involve detecting a mechanical play (Ws) in a system having a hydraulic valve and a valve drive for driving the hydraulic valve. A valve slide, which is driven by the valve drive of the hydraulic valve, is clamped with at least one return spring which is designed, in the case of a de-energized valve drive, to push the valve slide from any arbitrary valve slide position back into a neutral position of the valve slide.

公开(公告)号：US20240133485A1

公开(公告)日：2024-04-25

申请号：US18490144

申请日：2023-10-18

Applicant: Bucher Hydraulics GmbH

Inventor： Gerd Salah

IPC: F16K37/00 ,  F16K31/04

CPC classification number: F16K37/0083 ,  F16K31/04

Abstract: Techniques involve detecting a mechanical play (Ws) in a system having a hydraulic valve and a valve drive for driving the hydraulic valve. A valve slide, which is driven by the valve drive of the hydraulic valve, is clamped with at least one return spring which is designed, in the case of a de-energized valve drive, to push the valve slide from any arbitrary valve slide position back into a neutral position of the valve slide.