Patents by Inventor Friedrich Luehrs

Friedrich Luehrs 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).

  • Patent number: 9579966
    Abstract: A hybrid powertrain for a motor vehicle has an internal combustion engine and an electric machine that is connected to power electronics and to an electric energy storage device. The internal combustion engine is coupled to an internal combustion engine driveshaft and the rotor of the electric machine is coupled to an electric machine driveshaft that is connected to a planetary gear set with a sun gear, a planet carrier, and a ring gear, one element of which functions as an input element and another as an output element. The rotor of the electric machine can be selectively connected either to the input element or to the output element of the planetary gear set by way of a shiftable clutch).
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: February 28, 2017
    Assignee: Volkswagen Aktiengesellschaft
    Inventors: Georg-Friedrich Luehrs, Dirk Zeise
  • Publication number: 20150298535
    Abstract: A hybrid powertrain for a motor vehicle has an internal combustion engine and an electric machine that is connected to power electronics and to an electric energy storage device. The internal combustion engine is coupled to an internal combustion engine driveshaft and the rotor of the electric machine is coupled to an electric machine driveshaft that is connected to a planetary gear set with a sun gear, a planet carrier, and a ring gear, one element of which functions as an input element and another as an output element. The rotor of the electric machine can be selectively connected either to the input element or to the output element of the planetary gear set by way of a shiftable clutch).
    Type: Application
    Filed: August 13, 2013
    Publication date: October 22, 2015
    Inventors: GEORG-FRIEDRICH LUEHRS, DIRK ZEISE
  • Publication number: 20120083386
    Abstract: A hybrid vehicle has an internal combustion engine and an electric engine. A drive arrangement for the vehicle has a crankshaft-side clutch part rigidly connected to a crankshaft of the internal combustion engine, and the crankshaft-side clutch part may be coupled to a drive train shaft-side clutch part via a clutch. The clutch part on the drive train shaft side is mechanically connected to a drive train shaft via at least one element for torsional vibration isolation. The drive train shaft is configured at least partially as a rotor of the electric engine. The crankshaft-side clutch part, the clutch and the drive train shaft-side clutch part form at least one part of the primary mass of a dual-mass flywheel. The drive train shaft forms at least one part of the secondary mass of the dual-mass flywheel.
    Type: Application
    Filed: September 30, 2011
    Publication date: April 5, 2012
    Applicant: VOLKSWAGEN AKTIENGESELLSCHAFT
    Inventors: HENNING VOGT, HOLGER LANGE, GEORG-FRIEDRICH LÜHRS, SASCHA LAUTERBACH, HARALD DECKER
  • Patent number: 7263899
    Abstract: What is described is a device for conveying bulk goods, particularly in the form of a continuous conveyor and here in particular in the form of a chain conveyor. According to the invention, the conveying device has a measuring apparatus (7) for determining the delivery rate of transported goods. Furthermore, according to the invention, a dosing apparatus (5) and/or a mixing apparatus is provided, which is equipped with at least one conveying device of this type. It is thereby possible to mix precisely dosed quantities of additives into the bulk goods, for example dry feed, or to mix together a plurality of different bulk goods, for example, different types of dry feed in precise mixing ratios (FIG. 1).
    Type: Grant
    Filed: January 15, 2004
    Date of Patent: September 4, 2007
    Inventor: Friedrich Luehrs
  • Publication number: 20060225516
    Abstract: What is described is a device for conveying bulk goods, particularly in the form of a continuous conveyor and here in particular in the form of a chain conveyor. According to the invention, the conveying device has a measuring apparatus (7) for determining the delivery rate of transported goods. Furthermore, according to the invention, a dosing apparatus (5) and/or a mixing apparatus is provided, which is equipped with at least one conveying device of this type. It is thereby possible to mix precisely dosed quantities of additives into the bulk goods, for example dry feed, or to mix together a plurality of different bulk goods, for example, different types of dry feed in precise mixing ratios (FIG. 1).
    Type: Application
    Filed: January 15, 2004
    Publication date: October 12, 2006
    Inventor: Friedrich Luehrs
  • Patent number: 6053926
    Abstract: An apparatus for fitting ear tags in animal ears (40) is described. Such devices serve to distinguish animals, especially pigs. According to the invention two magazines (9, 10) are provided for ear tag parts (18, 19), which slide down in the magazines (9, 10) through gravity. The one ear tag part (18) is removed from the magazine (9) by a punch (12), which is actuated by a pedal, pushed through the animal's ear and connected to the other ear tag part (19). The ear tag parts (18, 19) are held before this fitting operation in positioning means (31, 32) arranged below the magazines (9, 10) and arranged thereby in fitting positions.
    Type: Grant
    Filed: February 15, 1999
    Date of Patent: April 25, 2000
    Assignee: Georg Luehrs
    Inventors: Friedrich Luehrs, Goerg Luehrs