Patents by Inventor Holger Scholzen

Holger Scholzen 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: 20100083741
    Abstract: A combustion chamber pressure sensor for an internal combustion engine, having a sensor body able to be inserted into a receiving bore of the internal combustion engine, which sensor body has on the side of the combustion chamber a sealing device for sealing the sensor body in the receiving bore, and which sensor body is provided with affixation means for fixing the combustion chamber pressure sensor in place inside the receiving bore. The sealing device includes at least one separately produced heat-resistant elastic sealing element, which is disposed around an outer jacket of the sensor body.
    Type: Application
    Filed: October 5, 2009
    Publication date: April 8, 2010
    Inventors: Holger SCHOLZEN, Markus LEDERMANN
  • Publication number: 20090219705
    Abstract: A device for electrically connecting a sensor element, which is accommodated in an engine add-on component, to evaluation electronics. The engine add-on component and the evaluation electronics are electrically connected to one another via contacting lines. The evaluation electronics is accommodated in a swiveling part of a hybrid holder which is movable relative to a part of the hybrid holder which is attached to the engine add-on component.
    Type: Application
    Filed: March 29, 2006
    Publication date: September 3, 2009
    Inventors: Oliver Glock, Holger Scholzen, Mathias Klenk, Juergen Krueger
  • Patent number: 7505273
    Abstract: A heat sink, in particular for a rectifier unit of an electrical machine has at least one diode opening, and disposed around the at least one diode opening at least partially ring-shaped cooling air openings and at least one mass-increasing raised area, wherein the mass-increasing raised area extends between two of the cooling air openings associated with the diode opening.
    Type: Grant
    Filed: May 2, 2003
    Date of Patent: March 17, 2009
    Assignee: Robert Bosch GmbH
    Inventors: Horst Braun, Holger Scholzen, Hardy Haegele
  • Patent number: 7497722
    Abstract: A sensor system includes a sensor element and a body. A number of electrical contact points with which contact may be created via electrical contact elements are provided on one side of the sensor element. Electrically conductive insertion parts are introduced into the body made of a non-conductive material and create a contact with the electrical contact points of the sensor element when the sensor element and the body are mechanically joined together.
    Type: Grant
    Filed: July 7, 2005
    Date of Patent: March 3, 2009
    Assignee: Robert Bosch GmbH
    Inventors: Rálf Henn, Holger Scholzen, Frank Henning
  • Patent number: 7418871
    Abstract: A pressure measuring device for detecting a pressure to be measured of a medium, having a pressure housing; a converter situated in the pressure housing for converting a mechanical force produced by the pressure to be measured into an electrical signal; an output unit for outputting the electrical signal; a separator for separating the medium from the converter; and a transmission device for transmitting the force produced by the pressure to be measured to the converter.
    Type: Grant
    Filed: October 2, 2006
    Date of Patent: September 2, 2008
    Assignee: Robert Bosch GmbH
    Inventors: Thomas Moelkner, Holger Scholzen, Joerg Engelhardt, Christian Roesser, Hans-Peter Didra, Markus Ledermann
  • Publication number: 20070084291
    Abstract: A pressure measuring device for detecting a pressure to be measured of a medium, having a pressure housing; a converter situated in the pressure housing for converting a mechanical force produced by the pressure to be measured into an electrical signal; an output unit for outputting the electrical signal; a separator for separating the medium from the converter; and a transmission device for transmitting the force produced by the pressure to be measured to the converter.
    Type: Application
    Filed: October 2, 2006
    Publication date: April 19, 2007
    Inventors: Thomas Moelkner, Holger Scholzen, Joerg Engelhardt, Christian Roesser, Hans-Peter Didra, Markus Ledermann
  • Patent number: 7159448
    Abstract: A pressure sensor for measuring the pressure in a space acted upon by high pressure. The signals detected by the pressure sensor are supplied to evaluation electronics. A sensor diaphragm is accommodated on the end of the pressure sensor pointing towards the space acted upon by high pressure. The sensor diaphragm takes the form of a steel diaphragm, to whose back side a thin, metallic layer accommodating piezoresistive measuring elements is applied. The thin, metallic layer is contacted by transmission elements and connected to the evaluation electronics.
    Type: Grant
    Filed: July 22, 2004
    Date of Patent: January 9, 2007
    Assignee: Robert Bosch GmbH
    Inventors: Thomas Moelkner, Holger Scholzen, Joerg Gebers, Ralf Kaiser, Carsten Kaschube, Christian Roesser, Lothar Baumann, Hans-Peter Didra, Roger Frehoff, Markus Fissler, Markus Ledermann, Benjamin Thiel
  • Publication number: 20060019547
    Abstract: A sensor system includes a sensor element and a body. A number of electrical contact points with which contact may be created via electrical contact elements are provided on one side of the sensor element. Electrically conductive insertion parts are introduced into the body made of a non-conductive material and create a contact with the electrical contact points of the sensor element when the sensor element and the body are mechanically joined together.
    Type: Application
    Filed: July 7, 2005
    Publication date: January 26, 2006
    Inventors: Ralf Henn, Holger Scholzen, Frank Henning
  • Publication number: 20050126297
    Abstract: The present invention relates to a sensor element for detecting pressures or forces. The sensor element (10) includes a sensor diaphragm (13), on the diaphragm outer side (20) of which piezoresistive measuring elements (8) are located. The sensor diaphragm (13) of the sensor element (10) is diametrically opposed to a sealing surface (15, 16) for sealing off the sensor element (10) from a housing. A force introduction region (23, 24) for introducing a force which produces a seal is mechanically decoupled from the sensor diaphragm (13) of the sensor element (10).
    Type: Application
    Filed: July 15, 2004
    Publication date: June 16, 2005
    Inventors: Thomas Moelkner, Holger Scholzen, Joerg Gebers, Ralf Kaiser, Carsten Kaschube, Christian Roesser, Lothar Baumann, Hans-Peter Didra, Roger Frehoff, Markus Fissler, Markus Ledermann, Benjamin Thiel
  • Publication number: 20050034525
    Abstract: A pressure sensor for measuring the pressure in a space acted upon by high pressure. The signals detected by the pressure sensor are supplied to evaluation electronics. A sensor diaphragm is accommodated on the end of the pressure sensor pointing towards the space acted upon by high pressure. The sensor diaphragm takes the form of a steel diaphragm, to whose back side a thin, metallic layer accommodating piezoresistive measuring elements is applied. The thin, metallic layer is contacted by transmission elements and connected to the evaluation electronics.
    Type: Application
    Filed: July 22, 2004
    Publication date: February 17, 2005
    Inventors: Thomas Moelkner, Holger Scholzen, Joerg Gebers, Ralf Kaiser, Carsten Kaschube, Christian Roesser, Lothar Baumann, Hans-Peter Didra, Roger Frehoff, Markus Fissler, Markus Ledermann, Benjamin Thiel
  • Publication number: 20050013118
    Abstract: The invention proposes a heat sink, in particular for a rectifier unit (50) of an electrical machine, having at least one diode boundary surface, this heat sink having at least one diode boundary surface and having at least two cooling air openings (26) and at least one raised area (38) disposed around the at least one diode boundary surface, wherein a radius-dependent circumference section (M) of the heat sink (20) around a diode boundary surface deviates from a radius-dependent normal section (AN) by maximally ?52%.
    Type: Application
    Filed: May 2, 2003
    Publication date: January 20, 2005
    Inventors: Horst Braun, Holger Scholzen, Hardy Haegele
  • Publication number: 20040232783
    Abstract: The invention relates to an electrical machine, preferably a rotary-current generator (10) for motor vehicles, having a rectifier unit (11) on a bearing plate (23) of the machine, in which bearing plate a rotating fan (28) is disposed; the rectifier unit is secured in heat-conducting fashion to a heat-conducting annular portion (23a) of the bearing plate (23), and the annular portion surrounds a region (23b) of the bearing plate (23) that is provided with openings (27) through which the cooling air aspirated by the fan (28) flows. The negative and positive diodes of each diode bridge of the rectifier unit are disposed, with an input-side connection part inserted between them, between a common positive and negative connection plate (15, 17) and with them forms the rectifier unit.
    Type: Application
    Filed: February 3, 2004
    Publication date: November 25, 2004
    Inventors: Horst Braun, Holger Scholzen, Peter Urbach, Holger Haussmann, Dana Keppeler, Roland Hoefs
  • Patent number: 6812604
    Abstract: The invention relates to an electrical machine, preferably an alternator (10) for motor vehicles, comprising a rectifier assembly (11a) that is fixed to an end shield (23) of the machine. Said rectifier assembly is cooled by a fan (27) that operates in the end shield (23), the diodes being positioned on a negative connecting plate (15) and a positive connecting plate (17) of the rectifier assembly (11). The aim of the invention is to evacuate the dissipated heat from the rectifier assembly (11a) in an advantageous manner. To achieve this, the rectifier assembly is located in an opening in the front face (32) of the end shield (23) and is connected in an electrically and thermally conductive manner by one of its two connecting plates (15 and 17) to a cooling body (33), which is connected to the exterior of the end shield (23) and covers the opening (32).
    Type: Grant
    Filed: October 27, 2003
    Date of Patent: November 2, 2004
    Assignee: Robert Bosch GmbH
    Inventors: Horst Braun, Holger Scholzen, Peter Urbach, Holger Haussmann, Dana Keppeler, Thomas Bilsing
  • Publication number: 20040100808
    Abstract: The invention relates to an electrical machine, preferably an alternator (10) for motor vehicles, comprising a rectifier assembly (11a) that is fixed to an end shield (23) of the machine. Said rectifier assembly is cooled by a fan (27) that operates in the end shield (23), the diodes being positioned on a negative connecting plate (15) and a positive connecting plate (17) of the rectifier assembly (11). The aim of the invention is to evacuate the dissipated heat from the rectifier assembly (11a) in an advantageous manner. To achieve this, the rectifier assembly is located in an opening in the front face (32) of the end shield (23) and is connected in an electrically and thermally conductive manner by one of its two connecting plates (15 and 17) to a cooling body (33), which is connected to the exterior of the end shield (23) and covers the opening (32).
    Type: Application
    Filed: October 27, 2003
    Publication date: May 27, 2004
    Inventors: Horst Braun, Holger Scholzen, Peter Urbach, Holger Haussmann, Dana Keppeler, Thomas Bilsing
  • Patent number: 6696914
    Abstract: The invention relates to an electrical fuse for rotary current generators, having a rectifier assembly (14) for supplying a DC network, in particular in motor vehicles. To achieve simple, cost-effective and rapid-response fuse performance in the event of an overload, it is provided that a fuse element (21) be disposed in a line strand, carrying all the generator current, between the rectifier assembly (14) and a DC connection terminal (22) of the generator.
    Type: Grant
    Filed: January 25, 2002
    Date of Patent: February 24, 2004
    Assignee: Robert Bosch GmbH
    Inventors: Martin Haupt, Herbert Labitzke, Walter Csicser, Klaus-Uwe Mittelstaedt, Holger Scholzen, Karl-Otto Heinz, Holger Haussmann, Henning Stilke
  • Patent number: 6667532
    Abstract: The invention concerns a semiconductor power element (diode 18) having a lead (11) and a safety fuse (12) situated in the main current path that blows when overheated, particularly for use in the electrical system of motor vehicles. In order to achieve a previously determined, purposeful disconnection of the endangered element in order to avoid consequential damages when semiconductor power elements become overloaded, it is proposed that a segment (11b) of the lead (11) and/or its points of contact in the main current path of the semiconductor be designed as a safety fuse (12) that blows when a specified, current-dependent temperature value is reached.
    Type: Grant
    Filed: January 24, 2002
    Date of Patent: December 23, 2003
    Assignee: Robert Bosch GmbH
    Inventors: Martin Haupt, Herbert Labitzke, Walter Csiscer, Klaus-Uwe Mittelstaedt, Hans-Heinrich Winkel, Holger Scholzen, Karl-Otto Heinz, Holger Haussmann, Henning Stilke, Hermann Lehnertz
  • Publication number: 20030071711
    Abstract: The invention relates to an electrical fuse for rotary current generators, having a rectifier assembly (14) for supplying a DC network, in particular in motor vehicles. To achieve simple, cost-effective and rapid-response fuse performance in the event of an overload, it is provided that a fuse element (21) be disposed in a line strand, carrying all the generator current, between the rectifier assembly (14) and a DC connection terminal (22) of the generator.
    Type: Application
    Filed: January 25, 2002
    Publication date: April 17, 2003
    Inventors: Martin Haupt, Herbert Labitzke, Walter Csicser, Klaus-Uwe Mittelstaedt, Holger Scholzen, Karl-Otto Heinz, Holger Haussmann, Henning Stilke
  • Publication number: 20020167772
    Abstract: The invention concerns a bridge rectifier for rotary current generators, in particular for supplying the electrical system of motor vehicles. It comprises rectifier diodes and a printed circuit board comprising an insulator (23) basically designed in the shape of a plate, in which multiple connection conductors (24) are embedded between the diodes of the rectifier bridges, whereby sections of these connection conductors are designed to be bent extending out of the insulator and as fuses (25) that melt in case of electrical overload. In order to achieve the smallest possible tolerances for operation of the fuses, each of the fuses (25) is formed out of two conductor ends (24a)-bent to the outside-of the connection conductors (24) and a fuse element (29) connected with them that bridges the conductor ends.
    Type: Application
    Filed: January 2, 2002
    Publication date: November 14, 2002
    Inventors: Martin Haupt, Herbert Labitzke, Walter Csicser, Klaus-Uwe Mittelstaedt, Holger Scholzen, Karl-Otto Heinz, Holger Haussmann, Henning Stilke, Hermann Lehnertz
  • Publication number: 20020158304
    Abstract: The invention concerns a semiconductor power element (diode 18) having a lead (11) and a safety fuse (12) situated in the main current path that blows when overheated, particularly for use in the electrical system of motor vehicles. In order to achieve a previously determined, purposeful disconnection of the endangered element in order to avoid consequential damages when semiconductor power elements become overloaded, it is proposed that a segment (11b) of the lead (11) and/or its points of contact in the main current path of the semiconductor be designed as a safety fuse (12) that blows when a specified, current-dependent temperature value is reached.
    Type: Application
    Filed: January 24, 2002
    Publication date: October 31, 2002
    Inventors: Martin Haupt, Herbert Labitzke, Walter Csiscer, Klaus-Uwe Mittelstaedt, Hans-Heinrich Winkel, Holger Scholzen, Karl-Otto Heinz, Holger Haussmann, Henning Stilke, Hermann Lehnertz