公开(公告)号：US20240286586A1

公开(公告)日：2024-08-29

申请号：US18583925

申请日：2024-02-22

Applicant: LIEBHERR-WERK BISCHOFSHOFEN GMBH

Inventor： Reinhard DENGG ,  Gerald HEUGENHAUSER ,  Hans KNAPP ,  Robert ADLER ,  Stephan GRUBER ,  Christoph NAGL ,  Markus RASCH ,  Markus STEPHAN

IPC: B60S5/02 ,  B60W10/18

CPC classification number: B60S5/02 ,  B60W10/182

Abstract: The present invention relates to an interface device, which is or can be connected to a construction machine to be refueled, on the one hand, and to a preferably mobile hydrogen refueling station, on the other, or forms a component thereof, wherein the interface device has a drive unit or a power transducer designed to provide the drive power for transferring hydrogen from the hydrogen refueling station to the construction machine to be refueled and wherein the interface device is formed by the construction machine to be refueled and/or the preferably mobile hydrogen refueling station and/or a dispenser unit, which is designed to supply the preferably mobile hydrogen refueling station and/or the construction machine with the drive power.

公开(公告)号：US20220251804A1

公开(公告)日：2022-08-11

申请号：US17620131

申请日：2020-06-25

Applicant: LIEBHERR-WERK BISCHOFSHOFEN GMBH

Inventor： Hans KNAPP ,  Josef STOCK ,  Rupert GAPPMAIER ,  Christoph KIEGERL ,  Reinhard WINDHOFER ,  Florian ALTENBERGER

IPC: E02F9/22 ,  F15B11/04

Abstract: The present invention relates to a mobile work machine, in particular to a wheeled loader, having a hydraulic circuit, having a pump for conveying a hydraulic medium through the hydraulic circuit, and having at least one control block having an inflow control edge and an outflow control edge for controlling the flow of the hydraulic medium, wherein the work machine has a working tool and a cylinder for actuating the working tool and wherein the cylinder has an outflow and in inflow for the hydraulic medium, and wherein the outflow is in fluid communication with the outflow control edge and the inflow is in fluid communication with the inflow control edge, and wherein the inflow control edge does not have any or has fewer fine control notches than the outflow control edge and thus works in a largely unrestricted manner, while the outflow control edge is equipped with one or more fine control notches so that with a pulling load at the working tool, the outflow control edge restricts the outflow amount through the outflow of the cylinder.

公开(公告)号：US20230323633A1

公开(公告)日：2023-10-12

申请号：US18107753

申请日：2023-02-09

Applicant: Liebherr-Werk Bischofshofen GmbH

Inventor： Marco EDER ,  Dominik ECKER ,  Rupert GAPPMAIER ,  Christoph KIEGERL ,  Hans KNAPP ,  Leke UKIMERAJ

IPC: E02F9/20

CPC classification number: E02F9/207 ,  E02F9/2091

Abstract: The present invention relates to a work machine having a fuel cell drive comprising a fuel cell and determination means for determining the load demand of the fuel cell, wherein the work machine has a plurality of electrical consumers that are directly or indirectly connected to the fuel cell for the purpose of obtaining electrical energy, wherein the determination means are configured such that the power requirements of at least two of the electrical consumers enter into the determination of the load demand of the fuel cell.

公开(公告)号：US20230059952A1

公开(公告)日：2023-02-23

申请号：US17889659

申请日：2022-08-17

Applicant: Liebherr-Werk Bischofshofen GmbH

Inventor： Hans KNAPP ,  Hendrik RICHTER ,  Christoph KIEGERL ,  Reinhard WINDHOFER ,  Johannes HOFBAUER

IPC: B60K11/02 ,  B60L1/00 ,  E02F9/08 ,  H02K9/193 ,  H02K9/26

Abstract: The present invention relates to a work machine, in particular a wheeled loader, having an electric motor and having oil cooling that is suitable and intended to cool the electric motor and having a driving axle that has an oil reservoir, wherein a feed line from said oil reservoir to the electric motor and a discharge line from the electric motor to said oil reservoir are present and a pump is present to pump oil from the oil reservoir to the electric motor so that the electric motor is cooled by means of oil from the oil reservoir of the driving axle.

公开(公告)号：US20230059902A1

公开(公告)日：2023-02-23

申请号：US17821135

申请日：2022-08-19

Applicant: Liebherr-Werk Bischofshofen GmbH

Inventor： Hans KNAPP ,  Gerald HEUGENHAUSER ,  Christoph KIEGERL ,  Reinhard DENGG ,  David SAGORZ

IPC: B60K15/03 ,  E02F9/08

Abstract: A work machine, more particularly a wheeled loader, having a cab for the operator of the work machine, wherein the work machine has a drive which can be operated with hydrogen and that one or more tanks for receiving hydrogen are provided, wherein components for receiving the tanks are provided, wherein the tank or tanks are arranged below the cab and, when the work machine is viewed from above, next to the cab of the work machine, wherein the components for receiving the tanks do not have a direct mechanical connection to the cab, and that an armor is provided which partially or completely surrounds the tank.

公开(公告)号：US20240328112A1

公开(公告)日：2024-10-03

申请号：US18429223

申请日：2024-01-31

Applicant: Liebherr-Werk Bischofshofen GmbH

Inventor： Reinhard DENGG ,  Gerald HEUGENHAUSER ,  Hans KNAPP ,  Matthias OEBSTER

IPC: E02F9/08 ,  B60K15/03 ,  B60K15/07 ,  E02F3/34

CPC classification number: E02F9/0883 ,  B60K15/07 ,  E02F9/0875 ,  B60K2015/03256 ,  B60K2015/03315 ,  E02F3/3417

Abstract: The present disclosure relates to a working machine which comprises a cabin for the operator of the working machine, an engine compartment arranged behind the cabin with a drive for the working machine, and at least one tank arranged behind the cabin for containing a fuel, in particular hydrogen. The working machine is characterized in that it has a displacement device on which the at least one tank is arranged within a mounting frame fastened to the working machine base body, wherein the displacement device is adapted to permit lateral displacement of the at least one tank if a force acting laterally on the at least one tank and/or the displacement device exceeds a preset threshold value.

公开(公告)号：US20230340968A1

公开(公告)日：2023-10-26

申请号：US17781922

申请日：2020-12-03

Applicant: LIEBHERR-WERK BISCHOFSHOFEN GMBH ,  DANFOSS SCOTLAND LTD.

Inventor： Rupert GAPPMAIER ,  Florian ALTENBERGER ,  Hans KNAPP ,  Josef STOCK ,  Alexis DOLE ,  Callan MACKAY

IPC: F15B11/17 ,  E02F9/22 ,  E02F3/42 ,  F15B13/06

CPC classification number: F15B11/17 ,  E02F9/2292 ,  E02F3/422 ,  F15B13/06 ,  E02F9/2267 ,  E02F9/2225 ,  E02F9/225 ,  F15B2211/20576

Abstract: The present invention relates to a switching valve block for a hydraulically actuable work machine that comprises a plurality of valve block inputs for a respective connection to a pressure output of one or more hydraulic fluid pumps, a plurality of valve block outputs for outputting a pressurized hydraulic fluid, and at least one valve that is arranged between valve block inputs and valve block outputs and is adapted to selectively produce a fluid connection between a first valve block input and a first valve block output or between a first valve block input and a second valve block output. The invention is characterized in that the first valve block output furthermore already has a fixed fluid connection to a second valve block input.

公开(公告)号：US20230167624A1

公开(公告)日：2023-06-01

申请号：US18051416

申请日：2022-10-31

Applicant: Liebherr-Werk Bischofshofen GmbH

Inventor： Hans KNAPP ,  Gerald HEUGENHAUSER ,  Reinhard DENGG ,  David SAGORZ

IPC: E02F9/08 ,  E02F9/16 ,  B60L50/70 ,  E02F9/20

CPC classification number: E02F9/0883 ,  E02F9/16 ,  B60L50/70 ,  E02F9/20 ,  B60L2200/40

Abstract: The present invention relates to a work machine, in particular a wheeled loader, having a cabin for the operator of the work machine and having an engine room arranged behind the cabin, wherein the work machine has a drive that is operable with hydrogen; and in that one or more tanks for the reception of hydrogen are present, with the tank or tanks being arranged in a hydrogen fuel system behind the cabin and above the engine room.

公开(公告)号：US20190187742A1

公开(公告)日：2019-06-20

申请号：US16099696

申请日：2017-05-11

Applicant: LIEBHERR-WERK BISCHOFSHOFEN GMBH

Inventor： Mario HETTEGGER ,  Manuel BOS ,  Hans KNAPP ,  Christoph KIEGERL

IPC: G05G5/05 ,  G05G5/03 ,  G05G9/047 ,  G05G1/08

CPC classification number: G05G5/05 ,  G05G1/04 ,  G05G1/08 ,  G05G5/03 ,  G05G9/047

Abstract: The invention relates to a system for controlling a work machine, in particular a wheel loader, having at least one hand-held control device (6), in particular a joystick or steering wheel, at least one restoring device (8) in the form of one or more spring assemblies, which are connected to the hand-held control device in such a way a restoring force is exerted upon the hand-held control device by the spring assembly when said spring assembly is not in the central position. An adjusting device (9, 12, 13) which engages with the spring assembly such that an adjustment of the central position of the spring assembly can be carried out, is provided.