Patents by Inventor Christoph Kiegerl

Christoph Kiegerl has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11976440
    Abstract: The present invention relates to a working machine having an engine room and a housing, wherein the housing at least partially surrounds or can surround the engine room, wherein a venting space, in which a line mouth of a line ends, is arranged on the housing, wherein the venting space is delimited from the engine room, preferably delimited in a gas-tight manner, and wherein the venting space is formed by a partial region of the housing and a bottom piece arranged in the engine room.
    Type: Grant
    Filed: March 1, 2023
    Date of Patent: May 7, 2024
    Assignee: Liebherr-Werk Bischofshofen GmbH
    Inventors: Georg Ganitzer, Christoph Kiegerl, David Sagorz, Birgit Kainz, Peter Kainz
  • Publication number: 20230358017
    Abstract: The present invention relates to a working machine having an engine room and a housing, wherein the housing at least partially surrounds or can surround the engine room, wherein a venting space, in which a line mouth of a line ends, is arranged on the housing, wherein the venting space is delimited from the engine room, preferably delimited in a gas-tight manner, and wherein the venting space is formed by a partial region of the housing and a bottom piece arranged in the engine room.
    Type: Application
    Filed: March 1, 2023
    Publication date: November 9, 2023
    Inventors: Georg GANITZER, Christoph KIEGERL, David SAGORZ, Birgit KAINZ, Peter KAINZ
  • Publication number: 20230323633
    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.
    Type: Application
    Filed: February 9, 2023
    Publication date: October 12, 2023
    Inventors: Marco EDER, Dominik ECKER, Rupert GAPPMAIER, Christoph KIEGERL, Hans KNAPP, Leke UKIMERAJ
  • Publication number: 20230059952
    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.
    Type: Application
    Filed: August 17, 2022
    Publication date: February 23, 2023
    Applicant: Liebherr-Werk Bischofshofen GmbH
    Inventors: Hans KNAPP, Hendrik RICHTER, Christoph KIEGERL, Reinhard WINDHOFER, Johannes HOFBAUER
  • Publication number: 20230059902
    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.
    Type: Application
    Filed: August 19, 2022
    Publication date: February 23, 2023
    Inventors: Hans KNAPP, Gerald HEUGENHAUSER, Christoph KIEGERL, Reinhard DENGG, David SAGORZ
  • Publication number: 20230009724
    Abstract: The present invention relates to a hydraulic system for a hydraulically actuable work machine that comprises a switching valve block having a plurality of valve block inputs for a respective connection to a pressure output of one or more hydraulic fluid pumps; having a plurality of valve block outputs for outputting a pressurized hydraulic fluid; and having at least one valve that is arranged between valve block inputs and valve block outputs and that is adapted to selectively produce a fluid connection between a first valve block input and a first valve block output or between the first valve block input and a second valve block output; a plurality of pressure sources, preferably a plurality of separately controllable pressure sources of which each one is connected to a respective valve block input; and a plurality of hydraulic consumers of which each one is connected to a respective valve block output.
    Type: Application
    Filed: December 3, 2020
    Publication date: January 12, 2023
    Inventors: Florian ALTENBERGER, Josef HUTTEGGER, Mario HETTEGGER, Christoph KIEGERL, Alexis DOLE
  • Publication number: 20220251804
    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 t
    Type: Application
    Filed: June 25, 2020
    Publication date: August 11, 2022
    Inventors: Hans KNAPP, Josef STOCK, Rupert GAPPMAIER, Christoph KIEGERL, Reinhard WINDHOFER, Florian ALTENBERGER
  • Patent number: 10942539
    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.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: March 9, 2021
    Assignee: LIEBHERR-WERK BISCHOFSHOFEN GMBH
    Inventors: Mario Hettegger, Manuel Bos, Hans Knapp, Christoph Kiegerl
  • Publication number: 20190187742
    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.
    Type: Application
    Filed: May 11, 2017
    Publication date: June 20, 2019
    Applicant: LIEBHERR-WERK BISCHOFSHOFEN GMBH
    Inventors: Mario HETTEGGER, Manuel BOS, Hans KNAPP, Christoph KIEGERL
  • Patent number: 8364353
    Abstract: The present invention relates to a system for the automatic movement of material in a working area comprising at least one movable piece of equipment, wherein the system has a control for the automatic movement of the piece of equipment with an automatic recognition of obstacles. In accordance with the invention, the control has a first obstacle processing function which moves an obstacle in the working area automatically using the movable piece of equipment; and/or in that the control has a second obstacle processing function which automatically removes an obstacle from the working area using the movable piece of equipment.
    Type: Grant
    Filed: June 18, 2008
    Date of Patent: January 29, 2013
    Assignee: Liebherr-Werk Bischofshofen Ges.m.b.H.
    Inventors: Christoph Kiegerl, Leke Ukimeraj, Markus Huber
  • Publication number: 20090076674
    Abstract: The present invention relates to a system for the automatic movement of material in a working area comprising at least one movable piece of equipment, wherein the system has a control for the automatic movement of the piece of equipment with an automatic recognition of obstacles. In accordance with the invention, the control has a first obstacle processing function which moves an obstacle in the working area automatically using the movable piece of equipment; and/or in that the control has a second obstacle processing function which automatically removes an obstacle from the working area using the movable piece of equipment.
    Type: Application
    Filed: June 18, 2008
    Publication date: March 19, 2009
    Inventors: Christoph Kiegerl, Leke Ukimeraj, Markus Huber
  • Publication number: 20080219820
    Abstract: The present invention relates to a work machine, preferably a wheeled loader, having a bucket which is movable via lifting arms having at least one lift cylinder, on the one hand, and which is pivotable via a tilt mechanism actuable via at least one tilt cylinder, on the other hand, having a selectable fully automatic or semi-automatic bucket filling process in which the bucket is movable by a superimposition of the tilt movement of the bucket and of the lift movement of the lifting arm for the filling. In accordance with the invention, material-dependent target tilt cylinder speed values and target lift cylinder speed values stored in a memory are associated with the measured lift cylinder pressure values and/or the pulling force for the regulation of the bucket filling process.
    Type: Application
    Filed: January 24, 2008
    Publication date: September 11, 2008
    Inventors: Christoph Kiegerl, Leke Ukimeraj, Markus Huber