Patents by Inventor Ralf Assmann

Ralf Assmann 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).

  • Piston fuel pump for an internal combustion engine
    Patent number: 10400727
    Abstract: A piston fuel pump for an internal combustion engine includes a pump cylinder and a pump piston that is configured to be axially displaced in the pump cylinder. A working chamber is defined by the pump piston. A seal is provided on the pump cylinder, which seals the working chamber counter to a low pressure region. The seal is applied directly to the pump piston by an injection molding method.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: September 3, 2019
    Assignee: Robert Bosch GmbH
    Inventors: Jochen Kaesser, Bernd Beiermeister, Soeren Stritzel, Wolfgang Ochs, Ralf Assmann, Heiko Jahn, Christian Preissner, Achim Laub, Peter Ropertz, Stefan Zaensch
  • Piston fuel pump for an internal combustion engine
    Patent number: 10288025
    Abstract: A piston fuel pump for an internal combustion engine includes a pump cylinder, a pump piston, and a seal. The pump piston is configured to be moved axially in the pump cylinder, wherein a working chamber is delimited by the pump piston. The seal is disposed on the pump piston and seals off the working chamber from a low-pressure region. The seal seals off an end section of the pump piston adjacent to the working chamber from the working chamber.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: May 14, 2019
    Assignee: Robert Bosch GmbH
    Inventors: Jochen Kaesser, Bernd Beiermeister, Soeren Stritzel, Wolfgang Ochs, Ralf Assmann, Heiko Jahn, Christian Preissner, Achim Laub, Peter Ropertz, Stefen Zaensch
  • Piston Fuel Pump for an Internal Combustion Engine
    Publication number: 20180180006
    Abstract: A piston fuel pump for an internal combustion engine includes a pump cylinder, a pump piston, and a seal. The pump piston is configured to be moved axially in the pump cylinder, wherein a working chamber is delimited by the pump piston. The seal is disposed on the pump piston and seals off the working chamber from a low-pressure region. The seal seals off an end section of the pump piston adjacent to the working chamber from the working chamber.
    Type: Application
    Filed: December 4, 2015
    Publication date: June 28, 2018
    Inventors: Jochen Kaesser, Bernd Beiermeister, Soeren Stritzel, Wolfgang Ochs, Ralf Assmann, Heiko Jahn, Christian Preissner, Achim Laub, Peter Ropertz, Stefen Zaensch
  • Piston Fuel Pump for an Internal Combustion Engine
    Publication number: 20170306912
    Abstract: A piston fuel pump for an internal combustion engine includes a pump cylinder and a pump piston that is configured to be axially displaced in the pump cylinder. A working chamber is defined by the pump piston. A seal is provided on the pump cylinder, which seals the working chamber counter to a low pressure region. The seal is applied directly to the pump piston by an injection molding method.
    Type: Application
    Filed: December 4, 2015
    Publication date: October 26, 2017
    Inventors: Jochen Kaesser, Bernd Beiermeister, Soeren Stritzel, Wolfgang Ochs, Ralf Assmann, Heiko Jahn, Christian Preissner, Achim Laub, Peter Ropertz, Stefan Zaensch
  • Hardware-supported memory management
    Patent number: 8688922
    Abstract: The present disclosure describes a memory block manager. In some aspects a memory block allocation request is received from a packet-based interface, a memory block is allocated to the packet-based interface, and allocation of the memory block to another packet-based interface is prevented. In other aspects a request to free a memory block is received from a packet-based interface and the memory block is freed to allow the memory block to be reallocated.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: April 1, 2014
    Assignee: Marvell International Ltd
    Inventor: Ralf Assmann
  • Pressure control valve and method for making a pressure control valve
    Patent number: 7172170
    Abstract: A pressure control valve for an automatic transmission of a motor vehicle includes a valve unit (10) extruded from plastic, which is disposed coaxially to an actuator unit and serves for control of a fluid flow between a supply port (18) and a consumer port (16) and in which fluid channels (24, 26) and a valve chamber (30) are formed, in which a valve closing member is arranged. The fluid channels (24, 26) and the valve chamber (30) are formed on an injection-molded preform (22), which is injected into a flange (12).
    Type: Grant
    Filed: July 9, 2003
    Date of Patent: February 6, 2007
    Assignee: Robert Bosch GmbH
    Inventor: Ralf Assmann
  • Pressure control valve and method for making a pressure control valve
    Publication number: 20060236540
    Abstract: A pressure control valve for an automatic transmission of a motor vehicle includes a valve unit (10) extruded from plastic, which is disposed coaxially to an actuator unit and serves for control of a fluid flow between a supply port (18) and a consumer port (16) and in which fluid channels (24, 26) and a valve chamber (30) are formed, in which a valve closing member is arranged. The fluid channels (24, 26) and the valve chamber (30) are formed on an injection-molded preform (22), which is injected into a flange (12).
    Type: Application
    Filed: June 23, 2006
    Publication date: October 26, 2006
    Inventor: Ralf Assmann
  • Pressure control valve and method for making a pressure control valve
    Publication number: 20040056226
    Abstract: A pressure control valve for an automatic transmission of a motor vehicle includes a valve unit (10) extruded from plastic, which is disposed coaxially to an actuator unit and serves for control of a fluid flow between a supply port (18) and a consumer port (16) and in which fluid channels (24, 26) and a valve chamber (30) are formed, in which a valve closing member is arranged. The fluid channels (24, 26) and the valve chamber (30) are formed on an injection-molded preform (22), which is injected into a flange (12).
    Type: Application
    Filed: July 9, 2003
    Publication date: March 25, 2004
    Inventor: Ralf Assmann