Patents by Inventor Matthias Boee

Matthias Boee 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: 20030155438
    Abstract: A fuel injector (1) for fuel injection systems of internal combustion engines is constructed of a solenoid (8), an armature (12) which is acted upon in a closing direction by a restoring spring (10), and a valve needle (3) which is frictionally engaged with the armature (12) to actuate a valve-closure member (4) which together with a valve-seat surface (6) forms a sealing seat. In or on the armature (12) at least a first fuel channel (37) is provided through which fuel flows, where the cross-section of the first fuel channel (37) is dependent on the axial position of the armature (12).
    Type: Application
    Filed: October 1, 2002
    Publication date: August 21, 2003
    Inventors: Matthias Boee, Guenther Hohl, Norbert Keim
  • Publication number: 20030102386
    Abstract: A fuel injector (1), particularly a fuel injector (1) for fuel injection systems of internal combustion engines, has a magnetic coil (2), an armature (3) acted upon in a closing direction by a resetting spring (9) and a valve needle connected to the armature by force-locking for operating a valve-closure member (14), which forms a sealing seat together with a valve-seat surface (16). The armature (3) has a pot-shaped axial extension (7), in which at least one cutout (20) is formed.
    Type: Application
    Filed: August 27, 2002
    Publication date: June 5, 2003
    Inventors: Thomas Sebastian, Matthias Boee
  • Patent number: 6517014
    Abstract: A fuel injector, particularly an injector for fuel-injection systems of internal combustion engines, has a piezoelectric or magnetostrictive actuator and a valve-closure member which is operable by the actuator with the aid of a valve needle and which cooperates with a valve-seat surface to form a sealing seat. The actuator, at a first end face, abuts against a supporting member that has at least one cut-out through which at least one segment of an actuating sleeve projects. The actuating sleeve, at a first end, acts upon the valve needle, and at a second end, embraces the actuator at a second end face of the actuator facing away from the first end face of the actuator.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: February 11, 2003
    Assignee: Robert Bosch GmbH
    Inventors: Wolfgang Ruehle, Hubert Stier, Matthias Boee, Guenther Hohl, Norbert Keim
  • Patent number: 6474565
    Abstract: A fuel injector (1), particularly an injection valve for fuel-injection systems of internal combustion engines, has a piezoelectric or magnetostrictive actuator (16) that is arranged in a valve housing (2) and is sealed off from a fuel by an actuator housing (15), and a valve-closure member (7) which is operable by the actuator (16) with the aid of a valve needle (6) and which cooperates with a valve-seat surface (5) to form a sealing seat. The valve housing (2) and the actuator housing (15) have cut-outs (38, 39) adjoining one another, and the valve housing (2) is joined to the actuator housing (15) in an edge area of the cut-outs (38, 39). In this manner, a feed-through opening (41) is formed which is sealed off from the fuel. The feed-through opening (41) is filled with a filler element (43) by which at least one electrical supply line (37) of the actuator (16) is fixed in position in the feed-through opening (41).
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: November 5, 2002
    Assignee: Robert Bosch GmbH
    Inventors: Wolfgang Ruehle, Hubert Stier, Matthias Boee, Guenther Hohl, Norbert Keim
  • Patent number: 6425376
    Abstract: A fuel injector, especially an injector for fuel-injection systems of internal combustion engines, includes a piezoelectric or magnetostrictive actuator arranged in an actuator space of a valve housing of the fuel injector, the actuator space being sealed from a fuel by a seal. A valve-closure member, which can be actuated by the actuator and interacts with a valve seat to form a sealed seat, assumes the actual valve operation. The seal has a sealing member and a sealing element. The sealing element is joined to the sealing member by a first circumferential welded seam, is elastically deformable and band-shaped, and is joined to the valve housing by a second circumferential welded seam.
    Type: Grant
    Filed: June 23, 2000
    Date of Patent: July 30, 2002
    Assignee: Robert Bosch GmbH
    Inventors: Wolfgang Ruehle, Hubert Stier, Matthias Boee, Guenther Hohl, Norbert Keim
  • Patent number: 6405942
    Abstract: A fuel injector, in particular an injection valve for fuel injection systems of internal combustion engines, has a piezoelectric actuator or magnetostrictive actuator sealed against a fuel by an actuator seal and it has a valve closing body actuatable by the actuator and working together with a valve seat face to form a tight seat. The actuator seal includes a sealing element on the inlet end and a sealing element on the injection end, both designed to be elastically deformable and frictionally engaged with an actuating sleeve. The actuator acts on valve closing body by way of the actuating sleeve, thus at least partially compensating the forces generated by the fuel pressure and acting on the actuator by way of the actuating sleeve.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: June 18, 2002
    Assignee: Robert Bosch GmbH
    Inventors: Wolfgang Ruehle, Hubert Stier, Matthias Boee, Guenther Hohl, Norbert Keim
  • Patent number: 6380659
    Abstract: A method and a device for controlling a controller having a capacitive element. An ohmic resistor is connected in parallel to the capacitive element. The value of the ohmic resistor is determined at certain times, and then the type and/or temperature of the capacitive element is deduced on the basis of the value of the resistor.
    Type: Grant
    Filed: December 4, 2000
    Date of Patent: April 30, 2002
    Assignee: Robert Bosch GmbH
    Inventors: Johannes-Jörg Rueger, Wolfgang Ruehle, Hubert Stier, Matthias Boee, Guenther Hohl, Udo Schulz, Norbert Keim
  • Publication number: 20010015577
    Abstract: A method and a device for controlling a controller having a capacitive element. An ohmic resistor is connected in parallel to the capacitive element. The value of the ohmic resistor is determined at certain times, and then the type and/or temperature of the capacitive element is deduced on the basis of the value of the resistor.
    Type: Application
    Filed: December 4, 2000
    Publication date: August 23, 2001
    Inventors: Johannes-Jorg Rueger, Wolfgang Ruehle, Hubert Stier, Matthias Boee, Guenther Hohl, Udo Schulz, Norbert Keim