Patents by Inventor Robert Dunsch

Robert Dunsch 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: 10245536
    Abstract: A filter head may include a receiving component and a threaded metal nozzle insert at least partly injected into the receiving component. The receiving component and/or the filter head may be composed of plastic. The threaded metal nozzle insert may be structured as a cold extruded part. A plurality of radially extending ribs may be disposed in a cavity of the receiving component and/or the filter head. The ribs may be composed of plastic and/or integrally formed with the filter head. The ribs may extend along a radial direction from the threaded nozzle insert to a wall of the cavity. The ribs may additionally lead radially outward into an axial sealing surface of the filter head.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: April 2, 2019
    Assignee: Mahle International GmbH
    Inventors: Robert Dunsch, Lutz Haala
  • Publication number: 20170106316
    Abstract: A filter head may include a receiving component and a threaded metal nozzle insert at least partly injected into the receiving component. The receiving component and/or the filter head may be composed of plastic. The threaded metal nozzle insert may be structured as a cold extruded part. A plurality of radially extending ribs may be disposed in a cavity of the receiving component and/or the filter head. The ribs may be composed of plastic and/or integrally formed with the filter head. The ribs may extend along a radial direction from the threaded nozzle insert to a wall of the cavity. The ribs may additionally lead radially outward into an axial sealing surface of the filter head.
    Type: Application
    Filed: February 25, 2015
    Publication date: April 20, 2017
    Inventors: Robert Dunsch, Lutz Haala
  • Patent number: 9175636
    Abstract: A cylinder head cover having a bearing device that includes at least two bearing blocks for supporting a camshaft, and one connecting element. The bearing blocks are axially penetrated in a first through-opening by the camshaft and are fixed in an aligned position with respect to one another by the connecting element. The bearing blocks, the connecting element and the camshaft form a prefabricated assembly. The cylinder head cover is connected via at least one additional connecting element with the bearing device, whereby a unit consisting of the cylinder head cover and the bearing device are mounted on the cylinder head.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: November 3, 2015
    Assignee: Mahle International GmbH
    Inventors: Robert Dunsch, Edwin Hartmann, Michael Kreisig, Stefan Ruppel, Jan Scheffel, Falk Schneider, Markus Walch
  • Patent number: 8439022
    Abstract: The invention relates to a ventilation device (19) for an internal combustion engine (1) for evacuating blow-by gas from a crankcase (3), comprising a first line (20), which is connected at the one end to the crankcase (3) and at the other end, downstream of a forced induction device (10), to a fresh-gas line (7) and contains a ventilation valve (23), and a second line (21), which is connected at the one end, upstream of the forced induction device (10), to the fresh-gas line (7) and at the other end, between the crankcase (3) and the ventilation valve (23), to the first line (20) and contains a throttle device (23).
    Type: Grant
    Filed: April 19, 2007
    Date of Patent: May 14, 2013
    Assignee: Mahle International GmbH
    Inventors: Stefan Ruppel, Mirko Braun, Robert Dunsch, Yakup Ozkaya
  • Patent number: 8191538
    Abstract: The present invention relates to a deaerating and aerating device (19) for an internal combustion engine (1) for discharging blowby gas out of a crankcase (3), comprising a first line (20) which is connected at one end to the crankcase (3) and at the other end to a fresh gas line (7) downstream of a supercharging device (10) and which contains a deaerating valve (23), and a second line (21) which is connected at one end to the fresh gas line (7) upstream of the supercharging device (10) and at the other end to the crankcase (3) and which contains a throttle device (28) and, parallel thereto, a non-return check valve (29) which provides a blocking action in the direction of the crankcase (3).
    Type: Grant
    Filed: April 19, 2007
    Date of Patent: June 5, 2012
    Assignee: Mahle International GmbH
    Inventors: Mirko Braun, Robert Dunsch, Stefan Ruppel, Yakup Ozkaya
  • Publication number: 20110005490
    Abstract: A cylinder head cover having a bearing device that includes at least two bearing blocks for supporting a camshaft, and one connecting element. The bearing blocks are axially penetrated in a first through-opening by the camshaft and are fixed in an aligned position with respect to one another by the connecting element. The bearing blocks, the connecting element and the camshaft form a prefabricated assembly. The cylinder head cover is connected via at least one additional connecting element with the bearing device, whereby a unit consisting of the cylinder head cover and the bearing device are mounted on the cylinder head.
    Type: Application
    Filed: October 20, 2008
    Publication date: January 13, 2011
    Inventors: Robert Dunsch, Edwin Hartmann, Michael Kreisig, Stefan Ruppel, Jan Scheffel, Falk Schneider, Markus Walch
  • Patent number: 7845322
    Abstract: The present invention relates to a cylinder head cover (4) for covering a cylinder crank case (14) of an internal combustion engine. It is essential to the invention here that at least one bearing upper part (3) for a camshaft (2) has at least one through-opening (5), which is in alignment on the one hand with a screw-in/through-opening (5a) in a bearing lower part (6) and/or with a screw-in opening (5b) in the cylinder crank case (14) and on the other hand with a through-opening (5c) in the cylinder head cover (4), so that it is possible to fasten the cylinder head cover (4) and the bearing upper part (3) on the cylinder crank case (14) by means of a shared fastening screw (7), in which the cylinder head cover (4) is produced from a material which has different material characteristics from the at least one bearing upper part (3).
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: December 7, 2010
    Assignee: Mahle International GmbH
    Inventors: Robert Dunsch, Stefan Ruppel, Torsten Schellhase
  • Patent number: 7799109
    Abstract: The invention relates to a device for separating a gas-liquid mixture, in which the liquid portion exists in the form of small particles, especially for ventilating a crankcase of an internal combustion engine, by separating and coagulating the liquid particles on a target area. The liquid mixture, after acceleration in acceleration openings provided for this purpose, impacts the target area at an approximately right angle. The aim of the invention is to improve the aforementioned device in such a manner that it allows as high a degree of separation as possible for different sized volume flows of mixtures. For this purpose, the number and/or the cross-sections of the acceleration openings is varied, depending on the volume flow of mixtures, between a small complete cross-section for a low volume flow and a large complete cross-section for a large volume flow.
    Type: Grant
    Filed: May 29, 2006
    Date of Patent: September 21, 2010
    Assignee: MAHLE International GmbH
    Inventors: Robert Dunsch, Andreas Enderich, Leszek Goerlich, Stefan Ruppel, Yakup Ă–zkaya
  • Publication number: 20100000499
    Abstract: The present invention relates to a deaerating and aerating device (19) for an internal combustion engine (1) for discharging blowby gas out of a crankcase (3), comprising a first line (20) which is connected at one end to the crankcase (3) and at the other end to a fresh gas line (7) downstream of a supercharging device (10) and which contains a deaerating valve (23), and a second line (21) which is connected at one end to the fresh gas line (7) upstream of the supercharging device (10) and at the other end to the crankcase (3) and which contains a throttle device (28) and, parallel thereto, a non-return check valve (29) which provides a blocking action in the direction of the crankcase (3).
    Type: Application
    Filed: April 19, 2007
    Publication date: January 7, 2010
    Inventors: Mirko Braun, Robert Dunsch, Stefan Ruppel, Yakup Ozkaya
  • Publication number: 20090320809
    Abstract: The invention relates to a ventilation device (19) for an internal combustion engine (1) for evacuating blow-by gas from a crankcase (3), comprising a first line (20), which is connected at the one end to the crankcase (3) and at the other end, downstream of a forced induction device (10), to a fresh-gas line (7) and contains a ventilation valve (23), and a second line (21), which is connected at the one end, upstream of the forced induction device (10), to the fresh-gas line (7) and at the other end, between the crankcase (3) and the ventilation valve (23), to the first line (20) and contains a throttle device (23).
    Type: Application
    Filed: April 19, 2007
    Publication date: December 31, 2009
    Inventors: Stefan Ruppel, Mirko Braun, Robert Dunsch, Yakup Ozkaya
  • Publication number: 20080295796
    Abstract: The present invention relates to a cylinder head cover (4) for covering a cylinder crank case (14) of an internal combustion engine. It is essential to the invention here that at least one bearing upper part (3) for a camshaft (2) has at least one through-opening (5), which is in alignment on the one hand with a screw-in/through-opening (5a) in a bearing lower part (6) and/or with a screw-in opening (5b) in the cylinder crank case (14) and on the other hand with a through-opening (5c) in the cylinder head cover (4), so that it is possible to fasten the cylinder head cover (4) and the bearing upper part (3) on the cylinder crank case (14) by means of a shared fastening screw (7), in which the cylinder head cover (4) is produced from a material which has different material characteristics from the at least one bearing upper part (3).
    Type: Application
    Filed: May 29, 2008
    Publication date: December 4, 2008
    Inventors: Robert Dunsch, Stefan Ruppel, Torsten Schellhase
  • Publication number: 20080155949
    Abstract: The invention relates to a device for separating a gas-liquid mixture, in which the liquid portion exists in the form of small particles, especially for ventilating a crankcase of an internal combustion engine, by separating and coagulating the liquid particles on a target area. The liquid mixture, after acceleration in acceleration openings provided for this purpose, impacts the target area at an approximately right angle. The aim of the invention is to improve the aforementioned device in such a manner that it allows as high a degree of separation as possible for different sized volume flows of mixtures. For this purpose, the number and/or the cross-sections of the acceleration openings is varied, depending on the volume flow of mixtures, between a small complete cross-section for a low volume flow and a large complete cross-section for a large volume flow.
    Type: Application
    Filed: May 29, 2006
    Publication date: July 3, 2008
    Inventors: Robert Dunsch, Andreas Enderich, Leszek Goerlich, Stefan Ruppel, Yakup Ozkaya