Patents by Inventor Walter Lorch

Walter Lorch 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).

  • Pressure control valve
    Patent number: 6679475
    Abstract: A pressure control valve serves to regulate the fuel pressure in a fuel system. The pressure control valve includes a valve housing, at least one inlet, at least one outlet, and at least one prestressed, electrically actuatable, and at least regionally ball-shaped valve member. The valve member cooperates with a valve seat structurally connected to the housing. To make it possible to achieve stable closed- and/or open-loop control properties of the pressure control valve, it is proposed that the valve seat widen conically toward the valve member, and the ball diameter of the valve member is selected such that with the valve closed, the valve member touches the valve seat in the vicinity of its farther end.
    Type: Grant
    Filed: February 14, 2002
    Date of Patent: January 20, 2004
    Assignee: Robert Bosch GmbH
    Inventors: Helmut Rembold, Walter Teegen, Walter Lorch, Gerhard Wiltschek, Klaus Geistefeldt, Juergen Haller, Uwe Mueller, Harald Lang
  • Pressure control valve
    Publication number: 20020113219
    Abstract: A pressure control valve serves to regulate the fuel pressure in a fuel system. The pressure control valve includes a valve housing, at least one inlet, at least one outlet, and at least one prestressed, electrically actuatable, and at least regionally ball-shaped valve member. The valve member cooperates with a valve seat structurally connected to the housing. To make it possible to achieve stable closed- and/or open-loop control properties of the pressure control valve, it is proposed that the valve seat widen conically toward the valve member, and the ball diameter of the valve member is selected such that with the valve closed, the valve member touches the valve seat in the vicinity of its farther end.
    Type: Application
    Filed: February 14, 2002
    Publication date: August 22, 2002
    Applicant: Robert Bosch GmbH
    Inventors: Helmut Rembold, Walter Teegen, Walter Lorch, Gerhard Wiltschek, Klaus Geistefeldt, Juergen Haller, Uwe Mueller, Harald Lang
  • Internal combustion engine with intake module or intake tube fastened to it, and method for fastening an intake module or intake tube to an internal combustion engine
    Patent number: 5653200
    Abstract: The invention joins the intake module or intake tube to the engine with the aid of a displaceable retaining element. The retaining element, which in the mounted state is under initial tension, is braced against an engine retention face associated with the engine and against at least one counterpart intake module retention face joined to the intake module or intake tube. Because of the displaceability of the retaining element, the expense and effort of mounting and dismantling the intake module or intake tube to the engine by screws are substantially reduced. The engine is intended in particular for motor vehicles.
    Type: Grant
    Filed: July 31, 1996
    Date of Patent: August 5, 1997
    Assignee: Robert Bosch GmbH
    Inventors: Udo Hafner, Walter Lorch, Eckhard Bodenhausen, Hans-Dieter Siems, Thomas Gregorius, Werner Haarer, Albert Staacke, Uwe Schopper, Bernd Koch