Patents Assigned to Bosch Rexroth AG
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Patent number: 7566981Abstract: An actuating drive for a rotor blade in a wind power installation is provided with an electric motor and a frequency converter which has a rectifier that is to be fed from a power supply system, a link connected to the rectifier, and a d.c.-to-a.c. inverter for feeding the motor, the link carrying a specified nominal operating voltage in a network-fed normal operation of the frequency converter. Furthermore, an auxiliary energy supply device is provided that is connected to the link. The auxiliary energy supply device includes and energy store which makes available a support voltage that amounts to less than 80% of the nominal operating voltage of the link. A diode is connected between the energy store and the link, and is arranged, with regard to its forward direction, in such a way that it feeds a support voltage from the energy store into the link if the link voltage falls below the support voltage.Type: GrantFiled: June 29, 2006Date of Patent: July 28, 2009Assignee: Bosch Rexroth AGInventors: Steffen Kunkel, Karl-Günter Herrmann, Michael Hörning, Berno Kobelbauer, Jörg Dantlgraber, Stephan Becker, Gunther Neidlein, Bernd Schnurr
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Patent number: 7560835Abstract: A primary part of an electrical induction machine, especially a synchronous motor or a linear motor, includes a plurality of modules which each have teeth situated in a row having at least partially encircling slots, in the slot of each tooth a coil is wound around this tooth, and the coils of a single module are connected to a single phase of a rotary current network. The number of modules in the primary part is equal to the number of current phases or an integral multiple thereof. A single module includes an uneven number of teeth but at least three teeth, and teeth directly adjacent to one another of a single module include coils that have an opposite winding direction, which generates an opposite magnetic field polarity at the teeth. An electrical induction machine, especially a synchronous motor or a linear motor, includes a primary part and a secondary part, working together with the primary part via an air gap, which may have permanent magnets as rotor magnets.Type: GrantFiled: November 9, 2005Date of Patent: July 14, 2009Assignee: Bosch Rexroth AGInventors: Ingolf Groening, Christian Kaehler
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Publication number: 20090176197Abstract: The invention relates to a hydrostatic training device. The hydrostatic training device (1) comprises a frame body (12) to which a hydrostatic pump (3) is fixed. Furthermore, a hydrostatic consumer (5) is connected to the hydrostatic pump (3) in a hydrostatic, closed circuit. The training device (1) furthermore comprises a control console (23) for controlling the hydraulic circuit.Type: ApplicationFiled: February 14, 2007Publication date: July 9, 2009Applicant: BOSCH REXROTH AGInventors: Harald Vogt, Joerg Geiger, Martin Theiss
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Patent number: 7555901Abstract: What is disclosed is a drive mechanism, in particular for blanking and nibbling machines, comprising a hydraulic force transmitting element and a spindle drive for driving the force transmitting element, wherein a pre-tensioning means for pre-tensioning the force transmitting element is provided.Type: GrantFiled: November 10, 2004Date of Patent: July 7, 2009Assignee: Bosch Rexroth AGInventor: Joerg Dantlgraber
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Publication number: 20090165451Abstract: The invention relates to a hydraulic fluid accumulator (30) having a high-pressure chamber (32) and a low-pressure chamber (33), wherein the high-pressure chamber (32) provided with an equalizing volume (36) is disposed in the low-pressure chamber (33). Provided at the hydraulic fluid accumulator (30) is an external connection (34) for the equalizing volume (36), by means of which connection the equalizing volume (36) can be filled with a gas having a predefinable pressure.Type: ApplicationFiled: April 23, 2007Publication date: July 2, 2009Applicant: BOSCH REXROTH AGInventors: Matthias Mueller, Markus Kliffken
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Patent number: 7552678Abstract: In a method for registration correction for a multicolor rotary printing press in an acceleration phase, having at least one registration correction device with correction parameters for operation of constant speed, and having a motion controller for controlling the print roller speed, if the registration correction device is acted upon in the acceleration phase by at least one fixed set of the correction parameters, which differs from the correction parameters at constant speed, and/or in the acceleration phase, a correction profile that is modified compared to constant speed is used, and/or information about the presence of the acceleration phase is supplied by the motion controller to the registration correction device, then it can be attained that in both methods, during the acceleration phase, the corrector continues to remain active, and even in this phase, it compensates for registration deviations.Type: GrantFiled: July 13, 2006Date of Patent: June 30, 2009Assignee: Bosch Rexroth AGInventors: Hans-Juergen Doeres, Stephan Schultze
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Patent number: 7541767Abstract: The invention relates to a method for error response when an error occurs in response to a motion, particularly of a drive mechanism in a machine, the motion taking place while using at least one master axis and at least one cam disk having at least one input and one output and being controlled by the master axis, in which, in response to the occurrence of the error at the least one input of the at least one cam disk, current process variables that are present are used for the initiation and the execution of the error response. The invention also relates to a corresponding computer system.Type: GrantFiled: March 7, 2006Date of Patent: June 2, 2009Assignee: Bosch Rexroth AGInventors: Wolfgang Rüppel, Stephan Schultze
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Patent number: 7537026Abstract: An on-off valve is disclosed, especially a fast-acting on-off valve, wherein a plunger is pretensioned in a base position. The plunger has a plurality of parallel control edges via which a plurality of sectional opening cross-sections, arranged in parallel in a hydraulic manner, can be jointly actuated to open or close when the valve is switched.Type: GrantFiled: April 5, 2005Date of Patent: May 26, 2009Assignee: Bosch Rexroth AGInventors: Jörg Dantlgraber, Heino Försterling, Rudolf Scheidl, Bernd Winkler
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Publication number: 20090100829Abstract: The invention relates to a catapult drive for an object to be accelerated, preferably the car of a fairground ride, wherein the object is accelerated by means of a driving element. The movement of the driving element is produced by a flexible drive and a hydraulic cylinder via which all movements of the driving element can be controlled. The invention also relates to a control system for suitably controlling the inventive catapult drive.Type: ApplicationFiled: February 27, 2006Publication date: April 23, 2009Applicant: Bosch Rexroth AGInventors: Sander Leonard Boeijen, Marten Fluks, Maarten Rik Leo Kuijpers
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Publication number: 20090084102Abstract: The invention relates to a hydrostatic drive. The hydrostatic drive (1) includes a hydraulic pump (3) and a hydraulic motor (7). The hydraulic pump (3) may be connected by way of a first working line (5) to a first working line connection (8) of the hydraulic motor (7) and by way of a second working line (6) to a second working line connection (9) of the hydraulic motor (7). Furthermore, the hydrostatic drive (1) includes a first storage means (40) for storing pressure energy and a second storage means (41). For recovery of the pressure energy stored in the first storage means, the latter may be connected, at least for one direction of conveying, to a first or second working line (5, 6) which is on the suction side in relation to the hydraulic pump (3) in this direction of conveying.Type: ApplicationFiled: December 19, 2006Publication date: April 2, 2009Applicant: Bosch Rexroth AGInventors: Matthias Mueller, Steffen Mutschler
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Patent number: 7509701Abstract: What is disclosed is a lifting apparatus, in particular a ferry landing stage, comprising a platform that is capable of being taken into a predetermined lift position with the aid of a hydraulic cylinder or of a cable winch. A safety stop by which the platform may be supported independently of the drive mechanism is associated to the drive mechanism.Type: GrantFiled: July 4, 2002Date of Patent: March 31, 2009Assignee: Bosch Rexroth AGInventors: Erich Wirzberger, Stephen George Hopper
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Publication number: 20090036248Abstract: The invention concerns a drive with a torque split transmission (1). The torque split transmission (1) includes a hydraulic pump (9) and a hydraulic motor (12), which are connected to each other via a first work line (10) and a second work line (11). The drive also has at least one first storage element (21) to store braking energy, it being possible to connect the at least one first storage element (21) to the first work line (10) or second work line (11). The hydraulic pump (9) and the hydraulic motor (12) are connected mechanically to a driven shaft (18).Type: ApplicationFiled: March 13, 2007Publication date: February 5, 2009Applicant: Bosch Rexroth AGInventors: Matthias Mueller, Steffen Mutschler
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Publication number: 20090008174Abstract: The invention relates to a vehicle having a drive engine/motor (2) for driving a locomotive drive (6) and for operating at least one hydraulic working circuit (4). The vehicle, has a hydraulic accumulator (11) which is connected to a hydraulic machine (12). The hydraulic machine, (12) is connected to an output shaft (5) which connects the drive engine/motor (2) to the locomotive drive (6).Type: ApplicationFiled: December 18, 2006Publication date: January 8, 2009Applicant: BOSCH REXROTH AGInventors: Seppo Tikkanen, Matthias Mueller, Steffen Mutschler
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Patent number: 7470116Abstract: What is disclosed is an axial-piston machine having at least one swash plate and one cylinder drum supported thereon, which includes a multiplicity of cylinder sleeves. To the cylinder sleeves a row of pistons is associated which is connected with a shaft. In accordance with the invention, the cylinder sleeves are articulatedly mounted in the cylinder drum.Type: GrantFiled: December 5, 2003Date of Patent: December 30, 2008Assignee: Bosch Rexroth AGInventor: Joerg Dantlgraber
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Publication number: 20080314664Abstract: The invention relates to an energy recovery drive. Said drive comprises a first driving shaft (3) and a second driving shaft (4). The second driving shaft (4) is connected to a hydrostatic piston engine (5). Said hydrostatic piston engine (5) is connected to a first accumulator (11) and a second accumulator (12) for accumulating pressure energy. The first drive shaft (3) and the second drive shaft (4) can be connected to each other via a gear train (6), said gear train (6) comprising at least one first gearwheel (7) and a second gearwheel (8) which is configured as a sliding gearwheel.Type: ApplicationFiled: December 19, 2006Publication date: December 25, 2008Applicant: BOSCH REXROTH AGInventors: Matthias Mueller, Steffen Mutschler
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Patent number: 7465126Abstract: There is disclosed a support means, especially for mounting or dismounting an offshore platform, comprising an articulated bracket which is movable horizontally swinging its two articulated arms. In the case of a rather rough sea a compensating movement in the horizontal direction can be effected by appropriately controlling the articulated arms, wherein the reaction forces acting in the horizontal direction are minimal.Type: GrantFiled: March 12, 2001Date of Patent: December 16, 2008Assignee: Bosch Rexroth AGInventors: Henri Frans Theo Werners, Marten Fluks, Maria Cornelis Wilhelmus Marinus Van Den Oetelaar
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Publication number: 20080295507Abstract: The invention relates to a drive with an energy recovery and retarder function. The drive (1) comprises a hydrostatic piston engine (12) which is connected to an accumulator (16) for storing pressure energy and to a pressure limiting valve (19) for generating a braking action. Arranged downstream of the pressure limiting valve (19) is a cooler (45). The drive (1) also comprises a hydraulic motor (35) for driving a cooler fan (33), wherein the hydraulic motor (35) is acted on with a pressure medium which is delivered by the hydrostatic piston engine (12).Type: ApplicationFiled: December 20, 2006Publication date: December 4, 2008Applicant: BOSCH REXROTH AGInventors: Matthias Mueller, Steffen Mutschler, Martin Behm
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Patent number: 7460022Abstract: A device for the explosion protection of electric motors or similar electrical devices such as pumps, in which the motor has a protective housing and works together with an interconnected sensor accommodated in a separate protective housing. A favorable construction is achieved in that the motor protection housing and the sensor protection housing are configured for protection classes of different levels, the lower protection class being provided for the motor protection housing, and the higher protection class being provided for the sensor protection housing, and the protective device being provided for the lower protection class.Type: GrantFiled: March 13, 2006Date of Patent: December 2, 2008Assignee: Bosch Rexroth AGInventors: Ingolf Gröning, Johannes Schelbert
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Patent number: D586372Type: GrantFiled: August 8, 2007Date of Patent: February 10, 2009Assignee: Bosch Rexroth AGInventors: Volker Schueren, Alexander Seufert
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Patent number: D586373Type: GrantFiled: August 8, 2007Date of Patent: February 10, 2009Assignee: Bosch Rexroth AGInventors: Volker Schueren, Alexander Seufert