Patents by Inventor Ernst Winklhofer

Ernst Winklhofer 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: 20180100477
    Abstract: A fuel injector is provided that includes various precise configuration parameters, including dimensions, shape and/or relative positioning of fuel injector features, resulting in improved efficiency of fuel flow through the fuel injector.
    Type: Application
    Filed: December 13, 2017
    Publication date: April 12, 2018
    Applicant: CUMMINS INTELLECTUAL PROPERTY, INC.
    Inventors: Lester PETERS, Jeffrey HUANG, David BUCHANAN, Corydon Edward MORRIS, Gary GANT, Denis GIL, Heribert KAMMERSTETTER, Ernst WINKLHOFER
  • Patent number: 9903329
    Abstract: A fuel injector is provided that includes various precise configuration parameters, including dimensions, shape and/or relative positioning of fuel injector features, resulting in improved efficiency of fuel flow through the fuel injector.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: February 27, 2018
    Assignee: CUMMINS INTELLECTUAL PROPERTY, INC.
    Inventors: Lester L. Peters, Jeffrey C. Huang, David L. Buchanan, Corydon Edward Morris, Gary Gant, Denis Gill, Heribert Kammerstetter, Ernst Winklhofer
  • Patent number: 9828937
    Abstract: The invention relates to a piston (1), comprising a ring carrier (2) and a glass piston (3) for observing processes in a combustion chamber (B) of an internal combustion engine, wherein the glass piston (3) is placed upon the ring carrier (2) and is securely connected thereto in the region of an inner casing surface (8) of the ring carrier (2). In order to avoid overly high heat strain in the glass piston (3), the glass piston (3) is connected to the ring carrier (2) via at least one form-fit connection (20), and preferably via a force-fit connection (30).
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: November 28, 2017
    Assignee: AVL List GmbH
    Inventors: Ernst Winklhofer, Christopher Huber, Franz Neumann
  • Publication number: 20160153394
    Abstract: The invention relates to a piston (1), comprising a ring carrier (2) and a glass piston (3) for observing processes in a combustion chamber (B) of an internal combustion engine, wherein the glass piston (3) is placed upon the ring carrier (2) and is securely connected thereto in the region of an inner casing surface (8) of the ring carrier (2). In order to avoid overly high heat strain in the glass piston (3), the glass piston (3) is connected to the ring carrier (2) via at least one form-fit connection (20), and preferably via a force-fit connection (30).
    Type: Application
    Filed: June 5, 2014
    Publication date: June 2, 2016
    Applicant: AVL LIST GMBH
    Inventors: Ernst Winklhofer, Christopher Huber, Franz Neumann
  • Patent number: 8775049
    Abstract: A method for evaluating the state of a fuel-air mixture and/or the combustion in a combustion chamber of an internal combustion engine, with sample signals of flame light signals being stored in a database, and with flame light signals of the combustion in the combustion chamber being detected and compared with the stored sample signals, and with an evaluation of the state being output in the case of coincidence between the measured and stored signal patterns. In order to enable the monitoring of the combustion in the simplest possible way the sample signals in the database are stored with the assigned emission values and an evaluation of the state of the combustion is performed with respect to the obtained emissions in the case of coincidence between the measured and stored signal patterns for the combustion chamber of the respective cylinder.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: July 8, 2014
    Assignee: AVL List GmbH
    Inventors: Ernst Winklhofer, Heribert Fuchs, Alois Hirsch, Harald Philipp
  • Publication number: 20130270369
    Abstract: A fuel injector is provided that includes various precise configuration parameters, including dimensions, shape and/or relative positioning of fuel injector features, resulting in improved efficiency of fuel flow through the fuel injector.
    Type: Application
    Filed: April 16, 2012
    Publication date: October 17, 2013
    Applicant: CUMMINS INTELLECTUAL PROPERTY, INC.
    Inventors: Lester L. PETERS, Jeffrey C. HUANG, David L. BUCHANAN, Corydon Edward MORRIS, Gary GANT, Denis GILL, Heribert KAMMERSTETTER, Ernst WINKLHOFER
  • Patent number: 8454353
    Abstract: The invention relates to a method for evaluating the state of a fuel/air mixture and/or the combustion in a combustion chamber of an internal combustion engine, with sample signals of flame light signals, preferably the flame intensity (FI), with associated mixture states being saved to a database, with flame light signals, preferably the flame light intensity (FI), of the combustion in the combustion chamber being detected and thus being compared with the saved sample signals, and with conclusions being drawn on the state of the mixture in the combustion chamber in the case of coincidence between measured and saved signal patterns. In order to enable a simple and precise monitoring of the mixture state and the combustion it is provided that a pressure measurement is also performed in the cylinder simultaneously with the detection of the flame light signals.
    Type: Grant
    Filed: May 22, 2008
    Date of Patent: June 4, 2013
    Assignee: AVL List GmbH
    Inventor: Ernst Winklhofer
  • Publication number: 20120143458
    Abstract: A method for evaluating the state of a fuel-air mixture and/or the combustion in a combustion chamber of an internal combustion engine, with sample signals of flame light signals being stored in a database, and with flame light signals of the combustion in the combustion chamber being detected and compared with the stored sample signals, and with an evaluation of the state being output in the case of coincidence between the measured and stored signal patterns. In order to enable the monitoring of the combustion in the simplest possible way the sample signals in the database are stored with the assigned emission values and an evaluation of the state of the combustion is performed with respect to the obtained emissions in the case of coincidence between the measured and stored signal patterns for the combustion chamber of the respective cylinder.
    Type: Application
    Filed: November 29, 2011
    Publication date: June 7, 2012
    Inventors: Ernst Winklhofer, Heribert Fuchs, Alois Hirsch, Harald Philipp
  • Patent number: 7930934
    Abstract: The invention relates to a measuring device (1) for detecting processes in the combustion chamber of an internal combustion engine, comprising a pressure sensor (3) which is arranged to be inserted into a bore hole of the internal combustion engine which opens into a combustion chamber, with the pressure sensor (3) comprising at least one optical light guide (6) optically opening into the combustion chamber, and with an optical injection element (8) being arranged preferably in the opening region into the combustion chamber. In order to enable performing simultaneously a pressure measurement and optical combustion chamber monitoring at the same place of the combustion chamber, it is provided that the optical injection element (8) is soldered into a pressure membrane (5) of the pressure sensor (3) or into the housing (2) of the pressure sensor (3).
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: April 26, 2011
    Assignee: AVL List GmbH
    Inventors: Ernst Winklhofer, Alexander Friedl
  • Patent number: 7928641
    Abstract: A spark plug includes a longitudinal bore formed in a housing for receiving an insulator, with the housing having a first bore for receiving a pressure measuring device and a second bore for receiving a light guide which opens into the combustion chamber.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: April 19, 2011
    Assignee: AVL List GmbH
    Inventor: Ernst Winklhofer
  • Publication number: 20100195679
    Abstract: The invention relates to a solid-state laser, comprising a resonator (1) with a monolithic structure consisting of a laser medium, on which a passive Q-switch (12) and at least one resonator mirror are directly formed, and comprising several laser diodes (22) which, as a pump medium, radiate into the resonator (1) from the side. A simple and robust configuration with simultaneous high efficiency is achieved in such a way that the monolithic resonator (1) is held at one end in a first holding plate (31) and is held at its other end in a second holding plate (32), and between the first and second holding plate (31, 32) at least one carrier ring (21) is mounted which carries several laser diodes (22) which are passively wavelength stabilized.
    Type: Application
    Filed: June 13, 2007
    Publication date: August 5, 2010
    Inventors: Gerhard Kroupa, Georg Franz, Ernst Winklhofer, Roman Leitner
  • Publication number: 20090301178
    Abstract: The invention relates to a measuring device (1) for detecting processes in the combustion chamber of an internal combustion engine, comprising a pressure sensor (3) which is arranged to be inserted into a bore hole of the internal combustion engine which opens into a combustion chamber, with the pressure sensor (3) comprising at least one optical light guide (6) optically opening into the combustion chamber, and with an optical injection element (8) being arranged preferably in the opening region into the combustion chamber. In order to enable performing simultaneously a pressure measurement and optical combustion chamber monitoring at the same place of the combustion chamber, it is provided that the optical injection element (8) is soldered into a pressure membrane (5) of the pressure sensor (3) or into the housing (2) of the pressure sensor (3).
    Type: Application
    Filed: May 28, 2009
    Publication date: December 10, 2009
    Inventors: Ernst WINKLHOFER, Alexander FRIEDL
  • Patent number: 7499477
    Abstract: The invention relates to an internal combustion engine with a laser ignition device (1), Q-switched, pumped solid-state laser with a pulsed pumped light source (30), a solid laser crystal (2), enclosed in a resonator, a Q-switch (4), for increasing the power density, at least one output mirror (6) and a focussing device (7), by means of which the laser beam (26) may be focussed in a combustion chamber.
    Type: Grant
    Filed: September 23, 2004
    Date of Patent: March 3, 2009
    Assignee: AVL List GmbH
    Inventors: Ernst Winklhofer, Georg Franz, Gerhard Kroupa, Volker Mannheim, Alfred Binder
  • Publication number: 20080299505
    Abstract: The invention relates to a method for evaluating the state of a fuel/air mixture and/or the combustion in a combustion chamber of an internal combustion engine, with sample signals of flame light signals, preferably the flame intensity (FI), with associated mixture states being saved to a database, with flame light signals, preferably the flame light intensity (FI), of the combustion in the combustion chamber being detected and thus being compared with the saved sample signals, and with conclusions being drawn on the state of the mixture in the combustion chamber in the case of coincidence between measured and saved signal patterns. In order to enable a simple and precise monitoring of the mixture state and the combustion it is provided that a pressure measurement is also performed in the cylinder simultaneously with the detection of the flame light signals.
    Type: Application
    Filed: May 22, 2008
    Publication date: December 4, 2008
    Inventor: Ernst Winklhofer
  • Publication number: 20080218052
    Abstract: The invention relates to a spark plug (1), comprising a longitudinal bore (3) formed in a housing (2) for receiving an insulator (9), with the housing (2) having a first bore (10) for receiving a pressure measuring device (11). In order to enable performing simultaneous pressure and optical measurements in the combustion chamber in the simplest possible way and without changing the cylinder head it is provided that a second bore (21) is arranged in the housing (2) for receiving a light guide which opens into the combustion chamber.
    Type: Application
    Filed: March 7, 2008
    Publication date: September 11, 2008
    Inventor: Ernst Winklhofer
  • Publication number: 20070064746
    Abstract: The invention relates to an internal combustion engine with a laser ignition device (1), Q-switched, pumped solid-state laser with a pulsed pumped light source (30), a solid laser crystal (2), enclosed in a resonator, a Q-switch (4), for increasing the power density, at least one output mirror (6) and a focussing device (7), by means of which the laser beam (26) may be focussed in a combustion chamber.
    Type: Application
    Filed: September 23, 2004
    Publication date: March 22, 2007
    Inventors: Ernst Winklhofer, Georg Franz, Gerhard Kroupa, Volker Mannheim, Alfred Binder
  • Patent number: 7007547
    Abstract: An optical sensor or emitter (1) used for monitoring combustion processes in a combustion chamber is provided with an optical element (2) on a side facing the combustion chamber and an optical fiber or fiber bundle (3) on a side opposite the combustion chamber, the optical element and optical fiber/fiber bundle being jointly held in a metal sleeve (4). An annular gap filled with solder material (5) is provided between the optical element (2) and the inside of the metal sleeve (4).
    Type: Grant
    Filed: March 13, 2002
    Date of Patent: March 7, 2006
    Assignee: AVL List GmbH
    Inventors: Harald Philipp, Ernst Winklhofer
  • Patent number: 6649924
    Abstract: An optoelectronic measuring device for monitoring combustion processes in the combustion chamber of an internal combustion engine during operation includes optical sensors assigned to the combustion chamber and connected to an evaluation unit, the sensor ends on the side of the combustion chamber being essentially positioned in a plane and the sensors being aligned so that the individual viewing angles of the sensors will uniformly cover at least one predefined measuring sector of the combustion chamber. A simple way of localizing the origin of engine knocking in the combustion chamber is ensured by positioning the optical sensors in an essentially cylindrical component projecting into the combustion chamber with the sensor ends positioned essentially radially along the wall of the component.
    Type: Grant
    Filed: September 27, 2000
    Date of Patent: November 18, 2003
    Assignee: AVL List GmbH
    Inventors: Harald Philipp, Ernst Winklhofer, Martin Baumgartner
  • Publication number: 20020134138
    Abstract: The invention relates to an optical sensor or emitter (1) used for monitoring combustion processes in a combustion chamber, preferably during operation of an internal combustion engine, which is provided with an optical element (2) on the side facing the combustion chamber and an optical fiber or fiber bundle (3) on the side opposite of the combustion chamber, which are jointly held in a metal sleeve (4). In accordance with the invention an annular gap filled with solder material (5) is provided between the optical element (2) and the inside of the metal sleeve (4).
    Type: Application
    Filed: March 13, 2002
    Publication date: September 26, 2002
    Inventors: Harald Philipp, Ernst Winklhofer
  • Patent number: 6320184
    Abstract: An optoelectronic measuring device for monitoring combustion processes in a combustion chamber of an internal combustion engine during operation is provided with optical sensors which are connected to an evaluation unit. The optical sensors may be located in a seal element bounding the combustion chamber. To obtain high measuring quality in a simple manner, the optical sensors each include a lens assembly having a focusing lens whose flat end opposite the combustion chamber is coincident with the focal plane of the focusing lens and is abutted by an end of at least one optical fiber.
    Type: Grant
    Filed: July 9, 1999
    Date of Patent: November 20, 2001
    Assignee: AVL List GmbH
    Inventors: Ernst Winklhofer, Harald Arnulf Philipp, Michael Kreitel