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).
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Patent number: 11976440Abstract: 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: GrantFiled: March 1, 2023Date of Patent: May 7, 2024Assignee: Liebherr-Werk Bischofshofen GmbHInventors: Georg Ganitzer, Christoph Kiegerl, David Sagorz, Birgit Kainz, Peter Kainz
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Publication number: 20230358017Abstract: 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: ApplicationFiled: March 1, 2023Publication date: November 9, 2023Inventors: Georg GANITZER, Christoph KIEGERL, David SAGORZ, Birgit KAINZ, Peter KAINZ
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Publication number: 20230323633Abstract: 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: ApplicationFiled: February 9, 2023Publication date: October 12, 2023Inventors: Marco EDER, Dominik ECKER, Rupert GAPPMAIER, Christoph KIEGERL, Hans KNAPP, Leke UKIMERAJ
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Publication number: 20230059952Abstract: 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: ApplicationFiled: August 17, 2022Publication date: February 23, 2023Applicant: Liebherr-Werk Bischofshofen GmbHInventors: Hans KNAPP, Hendrik RICHTER, Christoph KIEGERL, Reinhard WINDHOFER, Johannes HOFBAUER
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Publication number: 20230059902Abstract: 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: ApplicationFiled: August 19, 2022Publication date: February 23, 2023Inventors: Hans KNAPP, Gerald HEUGENHAUSER, Christoph KIEGERL, Reinhard DENGG, David SAGORZ
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Publication number: 20230009724Abstract: 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: ApplicationFiled: December 3, 2020Publication date: January 12, 2023Inventors: Florian ALTENBERGER, Josef HUTTEGGER, Mario HETTEGGER, Christoph KIEGERL, Alexis DOLE
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Publication number: 20220251804Abstract: 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 tType: ApplicationFiled: June 25, 2020Publication date: August 11, 2022Inventors: Hans KNAPP, Josef STOCK, Rupert GAPPMAIER, Christoph KIEGERL, Reinhard WINDHOFER, Florian ALTENBERGER
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Patent number: 10942539Abstract: 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: GrantFiled: May 11, 2017Date of Patent: March 9, 2021Assignee: LIEBHERR-WERK BISCHOFSHOFEN GMBHInventors: Mario Hettegger, Manuel Bos, Hans Knapp, Christoph Kiegerl
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Publication number: 20190187742Abstract: 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: ApplicationFiled: May 11, 2017Publication date: June 20, 2019Applicant: LIEBHERR-WERK BISCHOFSHOFEN GMBHInventors: Mario HETTEGGER, Manuel BOS, Hans KNAPP, Christoph KIEGERL
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Patent number: 8364353Abstract: 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: GrantFiled: June 18, 2008Date of Patent: January 29, 2013Assignee: Liebherr-Werk Bischofshofen Ges.m.b.H.Inventors: Christoph Kiegerl, Leke Ukimeraj, Markus Huber
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Publication number: 20090076674Abstract: 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: ApplicationFiled: June 18, 2008Publication date: March 19, 2009Inventors: Christoph Kiegerl, Leke Ukimeraj, Markus Huber
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Publication number: 20080219820Abstract: 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: ApplicationFiled: January 24, 2008Publication date: September 11, 2008Inventors: Christoph Kiegerl, Leke Ukimeraj, Markus Huber