Patents by Inventor Jens Schäfer

Jens Schäfer 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).

  • Publication number: 20190379256
    Abstract: A fan arrangement includes a fan and toothed ring, and a converter motor includes a fan arrangement. The fan includes a base body on which fan blades are premolded, and the fan includes an annular region, which is premolded on the side of the fan blades facing away from the base body. The toothed ring is situated within the annular region, and thus, in particular, is set apart from the base body, and thus, in particular, is set apart from the base body via the fan blades.
    Type: Application
    Filed: February 1, 2018
    Publication date: December 12, 2019
    Inventors: Josef SCHMIDT, Firat ALTAN, Thomas ZÖLLER, Jens SCHÄFER, Christian SCHUMANN, Matthias HAUCK
  • Publication number: 20190214919
    Abstract: In a system and method for operating a system, which includes a first inverter which feeds a first electric motor, and a second inverter which feeds a second electric motor, the DC-voltage side connection of the first inverter is connected to the DC-voltage side connection of a rectifier which is supplied from an electrical AC-voltage supply network, the DC-voltage side connection of the second inverter is connected to the DC-voltage side connection of the rectifier, in particular, the two DC-voltage side connections of the inverters are switched in parallel, and a controller is provided, in particular in the first inverter, which controls the current accepted and acquired by the first inverter at its DC-voltage side terminal toward a setpoint value in that the torque of the first electric motor fed by the first inverter is the controlled variable.
    Type: Application
    Filed: July 20, 2017
    Publication date: July 11, 2019
    Inventors: Josef SCHMIDT, Thomas ZÖLLER, Jens SCHÄFER, Matthias HAUCK
  • Patent number: 9982577
    Abstract: A camshaft adjusting device, wherein said camshaft adjusting device has a lubricant supply unit, wherein the lubricant supply unit has a filter device for filtering the lubricant, wherein the filter device has at least one lubricant inlet, at least one lubricant outlet and at least one filter path, wherein the lubricant inlet and the lubricant outlet are fluidically connected to each other by way of the filter path, and wherein an output shaft of the camshaft adjusting device has two wall sections, wherein the at least one filter path is configured in a filter volume between the two wall sections, and wherein the lubricant inlet is at a smaller distance from the axis of rotation than the lubricant outlet, and the filter path extends at least in sections in the radial direction with respect to the axis of rotation.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: May 29, 2018
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Mike Kohrs, Jens Schaefer
  • Patent number: 9920660
    Abstract: A method for operating a camshaft adjuster, which includes an adjusting transmission with an input shaft, an output shaft connected in a non-rotatable manner with a camshaft, and an adjusting shaft, whereby the adjusting shaft is driven by an actuator, characterized by the fact that the actuator drives the adjusting shaft by overcoming a torque that is dependent on its angular position.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: March 20, 2018
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Mike Kohrs, Jens Schäfer, Marco Hildebrand
  • Patent number: 9840942
    Abstract: A camshaft adjusting device for an internal combustion engine, comprising a housing comprising a bearing sleeve arranged to be concentrically disposed on a camshaft, the bearing sleeve arranged to be guided through a cylinder head wall, an annular gap arranged to be inside the cylinder head, the annular gap arranged to be formed between the bearing sleeve and the camshaft, an adjusting mechanism comprising a control shaft arranged within the housing, a traction mechanism comprising a drive gear secured to the bearing sleeve outside the cylinder head, and a ball bearing arranged within the drive gear and securing the control shaft within the adjusting mechanism.
    Type: Grant
    Filed: August 7, 2014
    Date of Patent: December 12, 2017
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Sebastian Zwahr, Jens Schaefer
  • Patent number: 9840947
    Abstract: A camshaft adjusting device having improved lubricant management including adjusting gearing for adjusting the angular position of a camshaft is proposed, the adjusting gearing having an input shaft, which can be coupled to a crankshaft, an output shaft, which can be coupled to the camshaft and an adjusting shaft, which can be coupled to an actuator. The adjusting gearing defines a rotational axis and the gearing forms a gearing interior, in which the input shaft, the output shaft and the adjusting shaft are operatively interconnected. The camshaft adjusting device has a lubricant supply for supplying the gearing interior with a lubricant and the lubricant supply is designed to form a lubricant sump in the gearing interior, the sump being radially outwards situated relative to the rotational axis.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: December 12, 2017
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Mike Kohrs, Jens Schaefer, Marco Hildebrand
  • Publication number: 20170145928
    Abstract: A camshaft adjuster for adjusting the phase angle between a crankshaft and a camshaft of an internal combustion engine comprises an actuator, in particular, an electric motor, and an adjustment module, which comprises a drive element, which can be driven by the crankshaft, and an output element, which can be rotated relative to the drive element to a limited extent and which is provided to be securely coupled to the camshaft, wherein a signal generator, which is arranged so as to be fixed in position on the internal combustion engine and which has an inductance, is inductively coupled to a measurement circuit, which is integrated into the adjustment module and which has at least one resonant circuit component having electrical properties that depend on the said phase angle.
    Type: Application
    Filed: March 31, 2015
    Publication date: May 25, 2017
    Applicant: Schaefller Technologies AG & Co. KG
    Inventors: Wolfgang Braun, Jens Heim, Jens Schäfer, Andreas Thölke
  • Publication number: 20170136407
    Abstract: A device for arrangement in a container of a sorption dryer for a fluid, wherein a cartridge for accommodating a drying agent can be inserted into the container, wherein the device has at least one projection and/or at least one recess on a front side, wherein the projection and/or the recess is arranged eccentrically on the front side.
    Type: Application
    Filed: June 24, 2015
    Publication date: May 18, 2017
    Inventors: Abdelkhalic RBAYTl, Jens SCHAEFER, Wolfgang BONGARTZ, Susanne FULKO, Peter SCHAAF, Andreas LETTAU, Peter SCHWARZ, Roland WESTPHAL
  • Publication number: 20170101905
    Abstract: A camshaft adjusting device, wherein said camshaft adjusting device has a lubricant supply unit, wherein the lubricant supply unit has a filter device for filtering the lubricant, wherein the filter device has at least one lubricant inlet, at least one lubricant outlet and at least one filter path, wherein the lubricant inlet and the lubricant outlet are fluidically connected to each other by way of the filter path, and wherein an output shaft of the camshaft adjusting device has two wall sections, wherein the at least one filter path is configured in a filter volume between the two wall sections, and wherein the lubricant inlet is at a smaller distance from the axis of rotation than the lubricant outlet, and the filter path extends at least in sections in the radial direction with respect to the axis of rotation.
    Type: Application
    Filed: March 31, 2015
    Publication date: April 13, 2017
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Mike Kohrs, Jens Schaefer
  • Publication number: 20160369707
    Abstract: The invention relates to a method for operating an internal combustion engine with varying speed comprising at least one cylinder. Said internal combustion engine comprises different adjusting devices for influencing the filing of the cylinder, that is, at least one peripheral adjusting device and at least one adjusting device which is close to the cylinder. According to the invention, the various adjusting devices are adjusted unevenly when changing the engine speed.
    Type: Application
    Filed: December 11, 2014
    Publication date: December 22, 2016
    Inventors: Jens Schaefer, Andreas Thoelke
  • Publication number: 20160333749
    Abstract: A method for operating a camshaft adjuster, which includes an adjusting transmission with an input shaft, an output shaft connected in a non-rotatable manner with a camshaft, and an adjusting shaft, whereby the adjusting shaft is driven by an actuator, characterized by the fact that the actuator drives the adjusting shaft by overcoming a torque that is dependent on its angular position.
    Type: Application
    Filed: December 9, 2014
    Publication date: November 17, 2016
    Inventors: Mike Kohrs, Jens Schäfer, Marco Hildebrand
  • Patent number: 9484118
    Abstract: A nuclear fuel assembly for a boiling water reactor is provided. The nuclear fuel assembly includes a base, a head and a bundle of full length fuel rods and partial length fuel rods. The bundle extends longitudinally between the base and the head, at least one partial length fuel rod having a lower end received in a housing provided in the base and delimited by a closed bottom larger than the lower end. The housing is further delimited by a peripheral wall surrounding the lower end and the partial length fuel rod rests freely on the bottom.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: November 1, 2016
    Assignee: AREVA NP
    Inventors: Jens Schäfer, Juris Kronenberg
  • Publication number: 20160251986
    Abstract: A camshaft adjusting device having improved lubricant management including adjusting gearing for adjusting the angular position of a camshaft is proposed, the adjusting gearing having an input shaft, which can be coupled to a crankshaft, an output shaft, which can be coupled to the camshaft and an adjusting shaft, which can be coupled to an actuator. The adjusting gearing defines a rotational axis and the gearing forms a gearing interior, in which the input shaft, the output shaft and the adjusting shaft are operatively interconnected. The camshaft adjusting device has a lubricant supply for supplying the gearing interior with a lubricant and the lubricant supply is designed to form a lubricant sump in the gearing interior, the sump being radially outwards situated relative to the rotational axis.
    Type: Application
    Filed: September 9, 2014
    Publication date: September 1, 2016
    Inventors: Mike KOHRS, Jens SCHAEFER, Marco HILDEBRAND
  • Publication number: 20160195176
    Abstract: The invention relates to an adjustment apparatus (1) for changing the compression ratio in an internal combustion engine, comprising a driving means (2), at least one transmission (5) connected downstream of the driving means (2) and a drive shaft (7) connected downstream of the transmission (5), wherein the transmission (5) has at least two different transmission stiffness progressions between nominal load limits of 0 and 100%.
    Type: Application
    Filed: July 7, 2014
    Publication date: July 7, 2016
    Inventors: Sebastian Zwahr, Jens Schaefer
  • Publication number: 20160186619
    Abstract: A camshaft adjusting device for an internal combustion engine, comprising a housing comprising a bearing sleeve arranged to be concentrically disposed on a camshaft, the bearing sleeve arranged to be guided through a cylinder head wall, an annular gap arranged to be inside the cylinder head, the annular gap arranged to be formed between the bearing sleeve and the camshaft, an adjusting mechanism comprising a control shaft arranged within the housing, a traction mechanism comprising a drive gear secured to the bearing sleeve outside the cylinder head, and a ball bearing arranged within the drive gear and securing the control shaft within the adjusting mechanism.
    Type: Application
    Filed: August 7, 2014
    Publication date: June 30, 2016
    Inventors: Sebastian Zwahr, Jens Schaefer
  • Publication number: 20160079828
    Abstract: A bearing arrangement in an actuating motor of an electrical camshaft adjuster, including: a first, bowl-shaped housing part made of metal; a second housing part made of plastic, closing off the first housing part; a first roller bearing which is held in the first housing part; a second roller bearing which is inserted into the second housing part; and a shaft mounted by means of the first and second roller bearings. The first roller bearings is designed as a fixed bearing. A contact surface which transmits force, and which is smaller than the inner running surface of an inner ring of the first roller bearing, is formed between the shaft and the inner ring. The first roller bearing is designed as an open bearing which is lubricated by an operating medium. The second roller bearing is designed as a sealed bearing with a lifetime supply of grease.
    Type: Application
    Filed: June 24, 2014
    Publication date: March 17, 2016
    Inventors: Friedrich Schuler, Stefan Lintner, Jens Schaefer
  • Patent number: 9249695
    Abstract: A concentric cam shaft assembly, including: a first camshaft; a second camshaft including at least a portion disposed radially within the first camshaft; and at least one phasing assembly including first and second electric motors and a first input gear arranged to rotate at a first speed in response to receiving rotational torque from a crankshaft of an engine. The rotational torque is arranged to rotate the first and second camshafts. The first electric motor is arranged to circumferentially off-set the first camshaft with respect to the first input gear. The second electric motor is arranged to circumferentially off-set the second camshaft with respect to the first input gear.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: February 2, 2016
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Steven Burke, Craig Dupuis, Inhwa Chung, Mike Kohrs, Jens Schaefer
  • Patent number: 9095847
    Abstract: There is disclosed a tape cassette having a reeled-up carrier tape that carries at least one type of functional elements, namely test elements and/or puncturing elements, that are arranged at a distance from each other in a tape direction. The distances in the tape direction from a functional element to the next functional element of the same type change periodically in space at a period P. Moreover, there is disclosed a method for manufacture of a tape cassette of this type.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: August 4, 2015
    Assignee: Roche Diabetes Care, Inc.
    Inventors: Ulrich Porsch, Christian Freitag, Peter Seelig, Thomas Jaeck, Jens Schaefer
  • Patent number: 8950371
    Abstract: A triple shaft adjusting gear including a driving part (01) that can be connected rotationally fast to a drive shaft, a driven part that can be connected rotationally fast to a driven shaft and an adjusting member that can be connected to an adjusting shaft. A mechanical stop for limiting an adjusting angle between the drive shaft and the driven shaft is arranged between two of the three shafts. According to the invention, the stop is an elastic coupling member for damping an impingement in case of a stop.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: February 10, 2015
    Assignee: Schaeffler Technologies GmbH & Co. KG
    Inventors: Jens Schaefer, Mike Kohrs, Jeffrey S. Balko
  • Patent number: 8813703
    Abstract: A method for adjusting a crankshaft of an internal combustion engine which has a camshaft adjuster that in turn has a triple-shaft gear mechanism with a setting shaft, a camshaft sprocket and a camshaft. The camshaft sprocket is drivably connected to the crankshaft. During motor standstill or in a transition phase, in which at least one of the three shafts of the triple-shaft gear mechanism stands still, a driving of the setting shaft occurs. Also, a camshaft adjustment system is disclosed which has a triple-shaft gear mechanism with a control device that adjusts the crankshaft during the motor standstill or in a transition phase.
    Type: Grant
    Filed: July 21, 2009
    Date of Patent: August 26, 2014
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Jens Schaefer, Mike Kohrs