公开(公告)号：US10927867B2

公开(公告)日：2021-02-23

申请号：US16259128

申请日：2019-01-28

Applicant: Liebherr-Hydraulikbagger GmbH

Inventor： Bernhard Meitinger ,  Manuel Wirthensohn

IPC: F15B21/14

Abstract: The present invention relates to a work machine having at least one hydraulic actuator for actuating a piece of working equipment and having a first displacement unit that is driven by a drive assembly of the work machine and that feeds the hydraulic actuator with hydraulic medium from a hydraulic tank, wherein at least one second displacement unit is provided that is driven by the drive assembly and that feeds the hydraulic actuator and/or further hydraulic consumers with hydraulic medium from a hydraulic tank in the working mode and that is drivable during a recovery mode by the hydraulic volume displaced by the at least one hydraulic actuator or by a hydraulic consumer to feed kinetic energy back to the drive assembly.

公开(公告)号：US09463783B2

公开(公告)日：2016-10-11

申请号：US14053755

申请日：2013-10-15

Applicant: Liebherr-Hydraulikbagger GmbH

Inventor： Bernhard Meitinger ,  Johannes Lang

IPC: B60T7/12 ,  B60T15/00 ,  B60T17/22 ,  B60T1/10 ,  B60T7/10 ,  B60T13/68

CPC classification number: B60T15/00 ,  B60T1/10 ,  B60T7/10 ,  B60T7/12 ,  B60T13/686 ,  B60T17/221

Abstract: A braking apparatus for work machines has at least two brakes, each having at least one braking circuit. The braking circuits can each be actuated via at least one control valve, and the control valves can be controlled independently of one another. A processing unit, by which the control valves can be controlled or regulated, an operating circuit, via which the braking circuits can be controlled or regulated manually, and at least one pressure supply are provided, and the control valves can be controlled or regulated under predetermined conditions by the processing unit.

Abstract translation: 一种用于作业机械的制动装置具有至少两个制动器，每个制动器具有至少一个制动电路。 制动回路各自可通过至少一个控制阀致动，并且控制阀可以彼此独立地控制。 可以通过控制或调节控制阀的处理单元，可以手动地控制或调节制动回路的操作回路，并提供至少一个压力供应，控制阀可以被控制或调节 处理单元的预定条件。

公开(公告)号：US20140116039A1

公开(公告)日：2014-05-01

申请号：US14060418

申请日：2013-10-22

Applicant: Liebherr-Hydraulikbagger GmbH

Inventor： Johannes Lang ,  Bernhard Meitinger

IPC: B60W10/06

CPC classification number: B60W10/06 ,  B60K31/00 ,  E02F9/2246 ,  E02F9/2253 ,  F04B49/103 ,  F15B2211/20546 ,  F15B2211/3054 ,  F15B2211/6346 ,  F15B2211/6355 ,  F15B2211/6651 ,  F15B2211/7058 ,  F16H61/4061 ,  F16H61/421 ,  F16H61/431 ,  F16H61/47

Abstract: The present disclosure relates to an apparatus for controlling/regulating the travel speed of a utility vehicle comprising at least one drive motor, at least one hydraulic pump, at least one control slide valve, at least one hydraulic travel motor, at least one further hydraulic drive, as well as at least one controller. In accordance with the present disclosure, the travel speed of the at least one hydraulic travel motor is controlled/regulated via at least the speed of the drive motor, while the at least one further hydraulic drive does not provide any drive power.

Abstract translation: 本公开涉及一种用于控制/调节多用车行驶速度的装置，包括至少一个驱动马达，至少一个液压泵，至少一个控制滑阀，至少一个液压行进马达，至少一个液压行程马达 驱动器，以及至少一个控制器。 根据本公开，至少一个液压行进马达的移动速度至少通过驱动马达的速度被控制/调节，而至少一个另外的液压驱动器不提供任何驱动力。

公开(公告)号：US10919514B2

公开(公告)日：2021-02-16

申请号：US14060418

申请日：2013-10-22

Applicant: Liebherr-Hydraulikbagger GmbH

Inventor： Johannes Lang ,  Bernhard Meitinger

IPC: E02F9/22 ,  B60W10/06 ,  F04B49/10 ,  F16H61/4061 ,  B60K31/00 ,  F16H61/431 ,  F16H61/421 ,  F16H61/47

Abstract: The present disclosure relates to an apparatus for controlling/regulating the travel speed of a utility vehicle comprising at least one drive motor, at least one hydraulic pump, at least one control slide valve, at least one hydraulic travel motor, at least one further hydraulic drive, as well as at least one controller. In accordance with the present disclosure, the travel speed of the at least one hydraulic travel motor is controlled/regulated via at least the speed of the drive motor, while the at least one further hydraulic drive does not provide any drive power.

公开(公告)号：US10773629B2

公开(公告)日：2020-09-15

申请号：US15997069

申请日：2018-06-04

Applicant: Liebherr-Hydraulikbagger GmbH

Inventor： Bernhard Meitinger ,  Volker Hilsenbeck

IPC: B60P1/16 ,  B60P1/04 ,  F15B11/05 ,  F15B13/04

Abstract: The present invention relates to a construction machine having at least one material receiver that is adjustable by means of at least one hydraulic actuator for unloading, with the required feed pressure for the actuator actuation being able to be provided by a hydraulic circuit of the construction machine and with the feed pressure being able to be limited to a limit pressure by means of at least one pressure limiting device, wherein the construction machine comprises a weighing system for determining the current load weight of the material receiver; and a control for the hydraulic circuit is provided that adapts the limit pressure of the pressure limiting device in dependence on the determined load weight.