Patents by Inventor Herbert Naumann

Herbert Naumann 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: 8074615
    Abstract: A variable valve control apparatus includes an oscillating arm and a pivot lever pivotably mounted to each other via a swivel joint. A first roller, which is rotatably mounted on an arm of the pivot lever engages with the camming surface of a cam, while a second roller which is rotatably mounted on another arm of the pivot lever makes contact with a contact surface of an arcuate sliding block disposed within a housing of the valve control apparatus. The contact surface of the sliding block includes a first region which has an arcuate contour, and a radius that is centered on a pivot axis of the swivel joint when the valve is in the closed position, as well as a second region which adjoins the first region and has a curved spur that extends inwardly toward the swivel joint.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: December 13, 2011
    Assignee: Thyssenkrupp Presta TecCenter AG
    Inventor: Herbert Naumann
  • Patent number: 7891327
    Abstract: A valve-stroke control apparatus continuously varies the stroke of a valve in an engine, and selectively maintains it in a closed position, while the engine is in operation. The control apparatus includes a force-transmitting rod which is pivoted by a cam and a cam-contact roller. An additional roller on one end of said force-transmitting rod engages a transverse contact surface of a stroke-length setting lever. The contact surface has a contour such that pivoting of the force-transmitting rod causes movement between the contact surface and the additional roller, which in turn displaces the force-transmitting rod longitudinally in a direction associated with valve opening. Such displacement is introduced by way of a rotary articulation into a rocking lever that activates the valve.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: February 22, 2011
    Assignee: ThyssenKrupp Presta TecCenter AG
    Inventor: Herbert Naumann
  • Publication number: 20100192884
    Abstract: A variable valve control apparatus includes an oscillating arm and a pivot lever pivotably mounted to each other via a swivel joint. A first roller, which is rotatably mounted on an arm of the pivot lever engages with the camming surface of a cam, while a second roller which is rotatably mounted on another arm of the pivot lever makes contact with a contact surface of an arcuate sliding block disposed within a housing of the valve control apparatus. The contact surface of the sliding block includes a first region which has an arcuate contour, and a radius that is centered on a pivot axis of the swivel joint when the valve is in the closed position, as well as a second region which adjoins the first region and has a curved spur that extends inwardly toward the swivel joint.
    Type: Application
    Filed: November 30, 2009
    Publication date: August 5, 2010
    Applicant: ThyssenKrupp Presta TecCenter AG
    Inventor: Herbert NAUMANN
  • Patent number: 7628128
    Abstract: The invention relates to space-saving, easily-assembled guide systems for mechanical, variable value controllers, cam followers (1), driven by a cam (6) via a cam roller (5), the pivot joint (2) of which, for driving a tappet (4) which operates the value (3), is arranged in the tappet (4), or the pivot joint for the adjustment thereof runs in an arc around the axis of rotation of a roller, which is arranged on a tappet operating a value. The cam followers drive the tappets by means of the contact surface with the roller thereof. The guide systems are embodied with slide blocks (11), adjustable within slide housings (10), guide arms mounted in rollers and guide levers mounted in crank levers. According to application, the guide systems comprise contact surfaces, rollers or pivot joints.
    Type: Grant
    Filed: September 15, 2004
    Date of Patent: December 8, 2009
    Assignee: ThyssenKrupp Presta TecCenter AG
    Inventor: Herbert Naumann
  • Publication number: 20090095243
    Abstract: A valve-stroke control apparatus continuously varies the stroke of a valve in an engine, and selectively maintains it in a closed position, while the engine is in operation. The control apparatus includes a force-transmitting rod which is pivoted by a cam and a cam-contact roller. An additional roller on one end of said force-transmitting rod engages a transverse contact surface of a stroke-length setting lever. The contact surface has a contour such that pivoting of the force-transmitting rod causes movement between the contact surface and the additional roller, which in turn displaces the force-transmitting rod longitudinally in a direction associated with valve opening. Such displacement is introduced by way of a rotary articulation into a rocking lever that activates the valve.
    Type: Application
    Filed: December 16, 2008
    Publication date: April 16, 2009
    Applicant: ThyssenKrupp Presta TecCenter AG
    Inventor: Herbert NAUMANN
  • Patent number: 7467609
    Abstract: A valve-stroke control apparatus continuously varies the stroke of a valve in an engine, and selectively maintains it in a closed position, while the-engine is in operation. The control apparatus includes a force-transmitting rod which is pivoted by a cam and a cam-contact roller. An additional roller on one end of said force-transmitting rod engages a transverse contact surface of a stroke-length setting lever. The contact surface has a contour such that pivoting of the force-transmitting rod causes movement between the contact surface and the additional roller, which in turn displaces the force-transmitting rod longitudinally in a direction associated with valve opening. Such displacement is introduced by way of a rotary articulation into a rocking lever that activates the valve.
    Type: Grant
    Filed: April 29, 2004
    Date of Patent: December 23, 2008
    Assignee: ThyssenKrupp Presta TecCenter AG
    Inventor: Herbert Naumann
  • Publication number: 20080105228
    Abstract: The invention relates to space-saving, easily-assembled guide systems for mechanical, variable value controllers, cam followers (1), driven by a cam (6) via a cam roller (5), the pivot joint (2)of which, for driving a tappet (4) which operates the value (3), is arranged in the tappet (4), or the pivot joint for the adjustment thereof runs in an arc around the axis of rotation of a roller, which is arranged on a tappet operating a value. The cam followers drive the tappets by means of the contact surface with the roller thereof. The guide systems are embodied with slide blocks (11), adjustable within slide housings (10), guide arms mounted in rollers and guide levers mounted in crank levers. According to application, the guide systems comprise contact surfaces, rollers or pivot joints.
    Type: Application
    Filed: September 15, 2004
    Publication date: May 8, 2008
    Inventor: Herbert Naumann
  • Patent number: 7111600
    Abstract: Mechanical controls for continuously varying the length of the stroke of the valves in an internal-combustion engine and for maintaining the valves constantly closed while the engine is in operation while simultaneously varying how long the valve or valves remain open, whereby the valves are actuated by rocker levers that are in turn actuated by an angled lever, whereby the positions of the levers are varied in order to vary the length and duration of the stroke. The valves are actuated at low engine speeds by assigning a specific narrow angle of rotation to each abbreviated stroke to be established. FIG. 1 illustrates valve stroke controls with an angled lever (2) actuated by a cam (17) mounted on a lateral roller (3). In the event of a misalignment, a planetary gear comes into play, wherein a roller (9), mounted on the rocker lever (8) that actuates the valve (1) acts a sun wheel, the angled lever (2) acts as a planet wheel, and a setting lever (5) acts as a planet bearing.
    Type: Grant
    Filed: October 15, 2004
    Date of Patent: September 26, 2006
    Assignee: ThyssenKrupp Automotive AG
    Inventor: Herbert Naumann
  • Patent number: 6973904
    Abstract: Mechanical controls for continuously varying the length of the stroke of the valves in an internal-combustion engine and for maintaining the valves constantly closed while the engine is in operation while simultaneously varying how long the valve or valves remain open, whereby the valves are actuated by rocker levers that are in turn actuated by an angled lever, whereby the positions of the levers are varied in order to vary the length and duration of the stroke. The valves are actuated at low engine speeds by assigning a specific narrow angle of rotation to each abbreviated stroke to be established. FIG. 1 illustrates valve stroke controls with an angled lever (2) actuated by a cam (17) mounted on a lateral roller (3). In the event of a misalignment, a planetary gear comes into play, wherein a roller (9), mounted on the rocker lever (8) that actuates the valve (1) acts a sun wheel, the angled lever (2) acts as a planet wheel, and a setting lever (5) acts as a planet bearing.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: December 13, 2005
    Assignee: ThyssenKrupp Automotive AG
    Inventor: Herbert Naumann
  • Patent number: 6938596
    Abstract: Mechanical controls for continuously varying the length of the stroke of the valves in an internal-combustion engine and for maintaining the valves constantly closed while the engine is in operation while simultaneously varying how long the valve or valves remain open, whereby the valves are actuated by rocker levers that are in turn actuated by an angled lever, whereby the positions of the levers are varied in order to vary the length and duration of the stroke. The valves are actuated at low engine speeds by assigning a specific narrow angle of rotation to each abbreviated stroke to be established. FIG. 1 illustrates valve stroke controls with an angled lever (2) actuated by a cam (17) mounted on a lateral roller (3). In the event of a misalignment, a planetary gear comes into play, wherein a roller (9), mounted on the rocker lever (8) that actuates the valve (1) acts a sun wheel, the angled lever (2) acts as a planet wheel, and a setting lever (5) acts as a planet bearing.
    Type: Grant
    Filed: December 22, 2004
    Date of Patent: September 6, 2005
    Assignee: ThyssenKrupp Automotive AG
    Inventor: Herbert Naumann
  • Publication number: 20050103292
    Abstract: Mechanical controls for continuously varying the length of the stroke of the valves in an internal-combustion engine and for maintaining the valves constantly closed while the engine is in operation while simultaneously varying how long the valve or valves remain open, whereby the valves are actuated by rocker levers that are in turn actuated by an angled lever, whereby the positions of the levers are varied in order to vary the length and duration of the stroke. The valves are actuated at low engine speeds by assigning a specific narrow angle of rotation to each abbreviated stroke to be established. FIG. 1 illustrates valve stroke controls with an angled lever (2) actuated by a cam (17) mounted on a lateral roller (3). In the event of a misalignment, a planetary gear comes into play, wherein a roller (9), mounted on the rocker lever (8) that actuates the valve (1) acts a sun wheel, the angled lever (2) acts as a planet wheel, and a setting lever (5) acts as a planet bearing.
    Type: Application
    Filed: December 22, 2004
    Publication date: May 19, 2005
    Inventor: Herbert Naumann
  • Patent number: 6886512
    Abstract: Mechanical controls for continuously varying the length of the stroke of the valves in an internal-combustion engine and for maintaining the valves constantly closed while the engine is in operation while simultaneously varying how long the valve or valves remain open, whereby the valves are actuated by rocker levers that are in turn actuated by an angled lever, whereby the positions of the levers are varied in order to vary the length and duration of the stroke. The valves are actuated at low engine speeds by assigning a specific narrow angle of rotation to each abbreviated stroke to be established. FIG. 1 illustrates valve stroke controls with an angled lever (2) actuated by a cam (17) mounted on a lateral roller (3). In the event of a misalignment, a planetary gear comes into play, wherein a roller (9), mounted on the rocker lever (8) that actuates the valve (1) acts a sun wheel, the angled lever (2) acts as a planet wheel, and a setting lever (5) acts as a planet bearing.
    Type: Grant
    Filed: August 19, 2003
    Date of Patent: May 3, 2005
    Assignee: ThyssenKrupp Automotive AG
    Inventor: Herbert Naumann
  • Publication number: 20050051120
    Abstract: Mechanical controls for continuously varying the length of the stroke of the valves in an internal-combustion engine and for maintaining the valves constantly closed while the engine is in operation while simultaneously varying how long the valve or valves remain open, whereby the valves are actuated by rocker levers that are in turn actuated by an angled lever, whereby the positions of the levers are varied in order to vary the length and duration of the stroke. The valves are actuated at low engine speeds by assigning a specific narrow angle of rotation to each abbreviated stroke to be established. FIG. 1 illustrates valve stroke controls with an angled lever (2) actuated by a cam (17) mounted on a lateral roller (3). In the event of a misalignment, a planetary gear comes into play, wherein a roller (9), mounted on the rocker lever (8) that actuates the valve (1) acts a sun wheel, the angled lever (2) acts as a planet wheel, and a setting lever (5) acts as a planet bearing.
    Type: Application
    Filed: October 22, 2004
    Publication date: March 10, 2005
    Inventor: Herbert Naumann
  • Publication number: 20050045126
    Abstract: Mechanical controls for continuously varying the length of the stroke of the valves in an internal-combustion engine and for maintaining the valves constantly closed while the engine is in operation while simultaneously varying how long the valve or valves remain open, whereby the valves are actuated by rocker levers that are in turn actuated by an angled lever, whereby the positions of the levers are varied in order to vary the length and duration of the stroke. The valves are actuated at low engine speeds by assigning a specific narrow angle of rotation to each abbreviated stroke to be established. FIG. 1 illustrates valve stroke controls with an angled lever (2) actuated by a cam (17) mounted on a lateral roller (3). In the event of a misalignment, a planetary gear comes into play, wherein a roller (9), mounted on the rocker lever (8) that actuates the valve (1) acts a sun wheel, the angled lever (2) acts as a planet wheel, and a setting lever (5) acts as a planet bearing.
    Type: Application
    Filed: October 15, 2004
    Publication date: March 3, 2005
    Inventor: Herbert Naumann
  • Publication number: 20050045125
    Abstract: The invention relates to space-saving, easily-assembled guide systems for mechanical, variable value controllers, cam followers (1), driven by a cam (6) via a cam roller (5), the pivot joint (2)of which, for driving a tappet (4) which operates the value (3), is arranged in the tappet (4), or the pivot joint for the adjustment thereof runs in an arc around the axis of rotation of a roller, which is arranged on a tappet operating a value. The cam followers drive the tappets by means of the contact surface with the roller thereof. The guide systems are embodied with slide blocks (11), adjustable within slide housings (10), guide arms mounted in rollers and guide levers mounted in crank levers. According to application, the guide systems comprise contact surfaces, rollers or pivot joints.
    Type: Application
    Filed: September 15, 2004
    Publication date: March 3, 2005
    Inventor: Herbert Naumann
  • Publication number: 20040226525
    Abstract: The invention relates to mechanical, variable lift value controllers via which, in the case of individual valves or valve groups, the actuation of the valves can be continuously adjusted from a maximum stoke length to being constantly closed during the operation of the primer mover, whereby the opening duration of the valves is simultaneously shortened during a decreasing stroke. The valves are driven by valve levers, bucket tappets, pressing rods, or rods. Said rods desmodromically transfer pressing forces and tractive forces and are actuated by valve levers, angle levers or pressing rods. The lift valve controllers have a simple mechanical system that saves both space and mass. According to FIG. 1, the valve levers (2) have a pivot joint (5) via which the valve levers (2) are driven by an angle lever (7). The angle lever (7) is driven by a cam (9) via a cam roller (8). The valve lever engages, with its contact surfaces (10 and 11), in the roller (12) of an adjusting lever (13).
    Type: Application
    Filed: April 29, 2004
    Publication date: November 18, 2004
    Inventor: Herbert Naumann
  • Publication number: 20040118369
    Abstract: Mechanical controls for continuously varying the length of the stroke of the valves in an internal-combustion engine and for maintaining the valves constantly closed while the engine is in operation while simultaneously varying how long the valve or valves remain open, whereby the valves are actuated by rocker levers that are in turn actuated by an angled lever, whereby the positions of the levers are varied in order to vary the length and duration of the stroke.
    Type: Application
    Filed: August 19, 2003
    Publication date: June 24, 2004
    Inventor: Herbert Naumann
  • Patent number: 4662586
    Abstract: An apparatus for moving aircraft on flat surfaces with the aid of cables which, on the one hand, act on the aircraft and, on the other hand, pass to winch drums via guide pulleys which are in part displaceable is characterized in that, for moving aircraft, in particular helicopters, multi-drum winches are provided on a ship's deck with the winch drums being drivable via differential transmissions by two motors which are controllable by means of a joystick operable in the sense of the intended movement of the aircraft.
    Type: Grant
    Filed: January 9, 1985
    Date of Patent: May 5, 1987
    Assignee: Blohm + Voss AG
    Inventor: Herbert Naumann