Time filter

Source Type

Toulouse, France

The Liebherr Group is a large German equipment manufacturer based in Switzerland specializing in cranes, aircraft parts, and mining, with 8.3 billion euros in revenue for 2011. It has a workforce of 35,333 and comprises more than 130 companies across all countries. By 2007, it was the world's largest crane company. Established in 1949 by Hans Liebherr, the group's entirely family-owned Bulle, Switzerland-based holding company, Liebherr-International AG, of which Isolde and Willi Liebherr are the chief executive and chairman. In 2005, Forbes magazine listed them as billionaires.Starting by building affordable tower cranes, Liebherr expanded into making aircraft parts - it is a significant supplier to Europe's Airbus plane maker - and commercial chiller displays and freezers, as well as domestic refrigerators. The group also produces some of the world's biggest mining and digging machinery, including loaders, excavators and extreme-size dump trucks. The T 282 B is the world's biggest truck. The group's nine-axle mobile crane, the LTM 11200-9.1 - with a 100 metres telescopic boom - in 2007 received the heavy-lifting industry's Development of the Year award, by dint of being world's most powerful such machine.Over the years, the family business has grown into a group of varied companies and has locations in many countries, including Germany, Australia, Britain, Ireland, and the United States. Since 1958, its Irish factory in Killarney, Co. Kerry has built container cranes, exporting them worldwide through the port of Fenit. In Australia, the group in 2013 commenced a $65 million expansion of their local headquarters in Adelaide. The development includes adding a new three-storey office, workshops, warehouse, component plant, and distribution centre to the Para Hills facility. In the U.S., the group in 2012 started spending $45.4 million on a three-year renovation and expansion of its Newport News, Virginia factory, offices and warehouse. The company sought to increase its production there beyond 100 mining trucks a year. On 19 February 2013, representatives from the Commonwealth of Virginia and the cities of Newport News and Hampton announced that they would make grants and incentives available for transport improvement, training, and property investment.In April of 2014, Liebherr announced they would invest 160 million euros at its production site in Bulle, Switzerland. Wikipedia.

Liebherr - Aerospace | Date: 2014-02-04

The aerodynamic foil bearing in the form of a radial or axial thrust bearing, includes a rotor and a stator including a support designed to support, facing the rotor, a lift device including: a plurality of evenly distributed elastic foils fixed by a fixing edge to a surface of the lift device facing the rotor; rows of ventilation orifices passing through the lift device and opening between a free edge of each elastic foil and the fixing edge of the next foil, wherein the support includes a cavity having grooves extending under the rows of ventilation orifices and at least one circular groove intersecting the grooves and supplied with a stream of pressurized cooling gas to distribute same so as to cool the underside of each foil and provide a supply of fresh gas above the next foil to compensate for gas losses at the ends of the bearing.

The invention relates to a flap system for an aircraft high lift system or an engine actuation with a rotary shaft system, one or more drive stations as well as elements for transmitting the drive energy from the rotary shaft system to the one or more drive stations, wherein at least one drive station includes at least two independent load paths with at least one rotational transmission each for actuating the flap kinematics, and per load path at least one mechanically coupling-free synchronization unit is provided for compensating regular load fluctuations between the load paths. The invention furthermore relates to a method for monitoring a flap system with at least two redundant load paths which each comprise at least one rotational transmission, wherein it is cyclically checked whether the difference of the output-side torques of the at least two load paths exceeds a defined threshold value and/or lies within a defined limit range.

Liebherr - Aerospace | Date: 2015-09-30

This present disclosure relates to a motor arrangement for controlling pilot valves having at least three motors, having at least one stator each and at least one rotor each, wherein the motors are provided at a common rotating shaft, with each motor being coupled to the rotating shaft via at least one respective mechanical coupling.

Rolls-Royce and Liebherr - Aerospace | Date: 2014-12-18

The present invention relates to an aircraft gas turbine comprising an engine cowling that has a rear area, with respect to the direction of the flow, which has a thrust-reverser device, wherein the rear area is embodied in such a manner as to be translatable in the axial direction, characterized in that the rear area is mounted in a translatable manner at two rails that are arranged in parallel to each other, and that it comprises a gear rack that is mounted at each rail, respectively, with the gear rack being in mesh with a respective cog wheel, which is coupled to a common motor via a gear unit, respectively.

The present invention relates to an aircraft gas turbine comprising a thrust-reverser device that is arranged at the rear area of an engine cowling and that has multiple cascade elements which are distributed at the circumference and which divert a stream, characterized in that the cascade elements are mounted in a displaceable manner, in that on both sides of each cascade element at least one gear rack is formed that can be displaced via a respective cog wheel which is coupled to a driving device, and in that each cascade element is connected to a rear area of the engine cowling via a coupling element for the purpose of displacing the engine cowling in the axial direction.

Discover hidden collaborations