Patents Assigned to Liebherr Machines Bulle SA
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Patent number: 9765670Abstract: An engine exhaust system comprising an exhaust pipe routing an exhaust flow through a bend, and being in fluid communication with a catalyst downstream of the bend. An injector mounted to the exterior of the exhaust pipe, the injector with a tip disposed within the exhaust pipe at the bend, for injecting liquid reductant into the exhaust pipe. A shield member mounted in the exhaust pipe, the shield member comprising a generally tubular or frustoconical structure having a proximal and a distal end, the proximal end being disposed such that the injection tip is inside the shield member, the distal end being disposed towards a centerline of the exhaust pipe. A vane mounted in relation to the shield member, the vane being arranged to direct a proportion of exhaust flow from upstream of the bend in a substantially arcuate path into the proximal end of the shield member.Type: GrantFiled: March 24, 2014Date of Patent: September 19, 2017Assignee: Liebherr Machines Bulle SAInventors: Duncan J Arrowsmith, Diego Simón Davila, Brian G Bates, Nicolas Belle, Nicolas Talavera, Regis Vonarb
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Patent number: 9593774Abstract: A piston for an axial machine includes a piston body having a cavity that is closed in a pressure-tight way. The cavity is divided into a plurality of chambers, arranged one beside the other in cross-section.Type: GrantFiled: March 24, 2014Date of Patent: March 14, 2017Assignee: Liebherr Machines Bulle SAInventors: Mario Baeriswyl, Erwin Feusi
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Publication number: 20160208679Abstract: A gas engine includes a mixing unit for mixing two gas components, which are fed to one or more combustion chambers of the gas engine, in particular for mixing fuel gas and charge air, as well as two compressors. By way of the compressors, the two gas components are separately compressed before the two gas components are fed to the mixing unit. Both compressors are driven by a turbine arranged in the exhaust gas system of the gas engine.Type: ApplicationFiled: July 3, 2014Publication date: July 21, 2016Applicant: LIEBHERR-MACHINES BULLE SAInventor: TBD Gebhardt
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Patent number: 9334823Abstract: A controller for an injection system having a plurality of fuel injectors includes a map controller. From a desired injection value, the map controller generates a control value for actuating a fuel injector with reference to a specified map. A determination unit determines the actual injection value for at least one injection made, and an adaption unit uses results from the determination unit in order to adapt actuation of the fuel injectors. The adaption unit determines an adaption value for injector actuation from the at least one actual injection value. In engine operation, the adaption unit receives the control values generated by the map controller as input. From this input, the adaption unit generates adapted actuation values as output by applying a mathematical function to the control values generated by the map controller. The at least one adaption value is included in the first mathematical function as parameter.Type: GrantFiled: April 18, 2014Date of Patent: May 10, 2016Assignee: Liebherr Machines Bulle SAInventors: Konrad Christ, Francois Masson, Richard Pirkl
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Patent number: 8939128Abstract: The present invention shows a high-pressure injector having the following assemblies: an injector unit (1), a drive unit (2) for driving the injector unit (1), preferably a high-pressure storage unit (3) for supplying the injector unit (1) with fuel, and a high-pressure connection (4). Provision is made in this respect that the high-pressure injector has a housing (5) in which a plurality of the named assemblies are arranged behind one another in the longitudinal direction of the injector, wherein the housing (5) completely envelops at least one of the named assemblies, in particular the drive unit (2) and/or the high-pressure storage unit (3). The high-pressure injector with the injector unit can be used in all types of internal combustion engines, preferably in diesel engines.Type: GrantFiled: April 27, 2011Date of Patent: January 27, 2015Assignee: Liebherr Machines Bulle SAInventors: Richard Pirkl, Edgar Bignion, Wolfram Klemp
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Publication number: 20140311453Abstract: A controller for a common-rail injection system includes a plurality of fuel injectors, a common fuel supply line for the fuel injectors, a high-pressure pump for supplying the common fuel supply line with fuel, and a pressure sensor for determining the pressure in the common fuel supply line. A determination unit evaluates data of the pressure sensor and, from the pressure drop caused by an injection in the common fuel supply line, determines the fuel quantity actually injected during this injection or a value derived therefrom. An adaption unit uses the results of the determination unit in order to adapt the actuation of the fuel injectors. The determination unit carries out at least one test injection, and the actually injected fuel quantity or a value derived therefrom is effected by way of the test injection or injections.Type: ApplicationFiled: April 18, 2014Publication date: October 23, 2014Applicant: Liebherr Machines Bulle SAInventors: Konrad CHRIST, Francois MASSON, Richard PIRKL
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Publication number: 20140311457Abstract: A controller for an injection system having a plurality of fuel injectors includes a map controller. From a desired injection value, the map controller generates a control value for actuating a fuel injector with reference to a specified map. A determination unit determines the actual injection value for at least one injection made, and an adaption unit uses results from the determination unit in order to adapt actuation of the fuel injectors. The adaption unit determines an adaption value for injector actuation from the at least one actual injection value. In engine operation, the adaption unit receives the control values generated by the map controller as input. From this input, the adaption unit generates adapted actuation values as output by applying a mathematical function to the control values generated by the map controller. The at least one adaption value is included in the first mathematical function as parameter.Type: ApplicationFiled: April 18, 2014Publication date: October 23, 2014Applicant: Liebherr Machines Bulle SAInventors: Konrad CHRIST, Francois MASSON, Richard PIRKL
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Publication number: 20140305388Abstract: A drive system has an internal combustion machine that drives a hydraulic system and/or that includes a controller actuating the internal combustion machine such that, with transient load moment, the internal combustion machine operates at a constant set speed. The drive system includes a flywheel accumulator that is connected with the output shaft of the internal combustion machine via a step-up gear unit.Type: ApplicationFiled: April 11, 2014Publication date: October 16, 2014Applicant: Liebherr Machines Bulle SAInventors: Benoît GAY, Michael DEEKEN, Marcus QUASTHOFF, Bouzid SEBA, Damien DUJON
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Publication number: 20140283681Abstract: A piston for an axial machine includes a piston body having a cavity that is closed in a pressure-tight way. The cavity is divided into a plurality of chambers, arranged one beside the other in cross-section.Type: ApplicationFiled: March 24, 2014Publication date: September 25, 2014Applicant: LIEBHERR MACHINES BULLE SAInventors: Mario BAERISWYL, Erwin FEUSI
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Publication number: 20140170031Abstract: An exhaust gas treatment system for the purpose of reducing the harmful substances present in the exhaust gas of combustion engines, particularly diesel engines, has a gas- and liquid-tight housing with at least one inlet and at least one outlet. Gas guide elements are arranged in the housing, and the housing encloses at least one chamber in which is contained a catalyst material and/or a particle filter material. The gas guide elements have spark-catching and/or spark-extinguishing elements.Type: ApplicationFiled: December 9, 2013Publication date: June 19, 2014Applicant: Liebherr Machines Bulle SAInventors: Regis VONARB, Thorben Philipp, Yves HOHL, Phillip Federle
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Publication number: 20140134028Abstract: The present disclosure relates to a rotary vane expander for generating mechanical energy from the expansion of a gaseous medium comprising a housing, an inlet and an outlet for the gaseous medium and to a rotor arranged in the housing. Provision is made in this respect in accordance with a first aspect that the inner contour of the housing has two or more stroke regions which are in communication with the inlet for the gaseous medium so that the gaseous medium expands simultaneously in the two or more stroke regions during the operation of the energy recovery system.Type: ApplicationFiled: November 15, 2012Publication date: May 15, 2014Applicant: LIEBHERR-MACHINES BULLE SAInventors: Bouzid Seba, Gerd Schlager
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Publication number: 20130319374Abstract: An injection device for a fluid, in particular for fuel, with has at least one electric and/or electronic control element, at least one valve, at least one first throttle, and a second throttle. The valve can be switched into at least one first throttle position by activating the first throttle and into at least one second throttle position by activating the second throttle. The valve is directly and/or indirectly coupled with the control element such that, by way of an actuating operation of the control element directly and/or indirectly, the valve can be switched from the first into the second throttle position and/or vice versa. Furthermore, the present invention relates to a common-rail injection system, an internal combustion engine, a motor vehicle, a ship, and a method for injecting a fluid.Type: ApplicationFiled: February 8, 2012Publication date: December 5, 2013Applicant: Liebherr Machines Bulle SAInventors: Harald Schmidt, Richard Pirkl
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Publication number: 20120292409Abstract: The present invention concerns a nozzle with a nozzle body on the back of which a blind hole or seat hole is realized, whereby at least one spray hole leads outward from the blind hole or seat hole, in such a way that the spray hole displays a non-round cross section in the area of the spray hole aperture.Type: ApplicationFiled: May 16, 2012Publication date: November 22, 2012Applicant: Liebherr Machines Bulle SAInventors: Edgar Bignion, Waldemar Hampel, Walter Meindl, Werner Aichberger
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Publication number: 20110271935Abstract: The present invention shows a high-pressure injector having the following assemblies: an injector unit (1), a drive unit (2) for driving the injector unit (1), preferably a high-pressure storage unit (3) for supplying the injector unit (1) with fuel, and a high-pressure connection (4). Provision is made in this respect that the high-pressure injector has a housing (5) in which a plurality of the named assemblies are arranged behind one another in the longitudinal direction of the injector, wherein the housing (5) completely envelops at least one of the named assemblies, in particular the drive unit (2) and/or the high-pressure storage unit (3). The high-pressure injector with the injector unit can be used in all types of internal combustion engines, preferably in diesel engines.Type: ApplicationFiled: April 27, 2011Publication date: November 10, 2011Applicant: Liebherr Machines Bulle SAInventors: Richard Pirkl, Edgar Bignion, Wolfram Klemp
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Patent number: 6736048Abstract: A hydrostatic axial piston machine has a drum-like cylinder block which is supported in a manner fixed against rotation on a driving or output shaft and is provided concentrically and parallel to its center line with cylinder boreholes in which axially displaccable pistons are arranged which are supported via spherical heads on a slanting disk which is fixed to the housing and preferably adjustable in its slanting angle. The cylinder openings opposite the slanting disk sweep over roughly kidney-shaped low pressure and high pressure control openings of a control body, between which reversing regions with additional boreholes are located. To control the additional boreholes, which influence the pressure increase or the pressure drop on the passing of the cylinder openings over the reversing regions, in dependence on the operating states, a borehole opens at least in a reversing region of the control body which is connected to the high pressure side or the high pressure control opening by a line.Type: GrantFiled: July 18, 2001Date of Patent: May 18, 2004Assignee: Liebherr Machines Bulle SAInventors: Josef Riedhammer, Erich Eckhardt, Franz-Josef Schwede
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Patent number: D805557Type: GrantFiled: April 7, 2016Date of Patent: December 19, 2017Assignee: Liebherr-Machines Bulle SAInventors: Van No Lanevongsa, Marko Del Aguila, Lorenz Jonas