Patents by Inventor Andre Brunel

Andre Brunel 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: 5986590
    Abstract: A phased array antenna system having an array of antenna elements coupled to radio frequency energy feed network through a plurality of phase shifter sections with digital control data being fed to the phase shifter sections with radio frequency energy signal modulated with the digital control data. A modulator is fed by the source of the radio frequency energy and a modulating signal to produce the modulated radio frequency energy signal. A modulating signal generator/encoder, fed by the digital control data, encodes each bit of such digital control data into the modulating signal, such modulating signal being a bipolar signal having a pair of electrical signal changes corresponding to a binary state represented by such bit. The modulated radio frequency energy signal may be fed to the demodulator through the radio frequency feed network or through the antenna element coupled thereto.
    Type: Grant
    Filed: October 3, 1997
    Date of Patent: November 16, 1999
    Assignee: Raytheon Company
    Inventors: Irl W. Smith, L. E. Andre Brunel
  • Patent number: 5821901
    Abstract: A phased array antenna system having an array of antenna elements coupled to radio frequency energy feed network through a plurality of phase shifter sections with digital control data being fed to the phase shifter sections with radio frequency energy signal modulated with the digital control data. A modulator is fed by the source of the radio frequency energy and a modulating signal to produce the modulated radio frequency energy signal. A modulating signal generator/encoder, fed by the digital control data, encodes each bit of such digital control data into the modulating signal, such modulating signal being a bipolar signal having a pair of electrical signal changes corresponding to a binary state represented by such bit. The modulated radio frequency energy signal may be fed to the demodulator through the radio frequency feed network or through the antenna element coupled thereto.
    Type: Grant
    Filed: May 17, 1996
    Date of Patent: October 13, 1998
    Assignee: Raytheon Company
    Inventors: Robert P. Zagrodnick, Irl W. Smith, L. E. Andre Brunel
  • Patent number: 5265804
    Abstract: An electrically controlled fuel injector unit for fuel injection in internal combustion engines, in which an injection pump, an injection nozzle, and between them a control valve and control magnet are fastened in a fuel injector unit housing. The control valve and the control magnet, including requisite conduits, are combined in a magnet valve housing to form a structural unit that is inserted as a whole into the fuel injector unit housing. The control valve and control magnet are disposed eccentrically in the magnet valve housing, and a high-pressure conduit that connects the pump work chamber to the injection nozzle extends on a side of the magnet valve housing having a greater accumulation of material resulting from the eccentricity.
    Type: Grant
    Filed: December 23, 1992
    Date of Patent: November 30, 1993
    Assignee: Robert Bosch GmbH
    Inventor: Andre Brunel
  • Patent number: 5263457
    Abstract: A fuel injection pump for internal combustion engines has an adjusting piston for adjusting an injection instant, is acted upon by a return force and delimits a working space, a control slide delimiting a pressure space in the adjusting piston and displaceable in the adjusting piston counter to a return force by a pressure-source supply pressure in the pressure space and controlled as a function of speed of the engine so that the working space can be connected to a pressure source or to a relief space, and so the supply pressure in the pressure space is additionally controlled as a function of further operating parameters of the engine. A feed pump delivering at a rate proportional to speed has a delivery side connected to the pressure space, a pressure line, containing a restriction, directly connects the delivery side of the feed pump to the pressure space so that the pressure is directly connected with the feed pump exclusively by the pressure line and is not connected with the inlet chamber.
    Type: Grant
    Filed: January 15, 1993
    Date of Patent: November 23, 1993
    Assignee: Robert Bosch GmbH
    Inventors: Karl Konrath, Claus Koester, Christin Taudt, Andre Brunel, Pierre Lauvin, Francois Quarret
  • Patent number: 5255845
    Abstract: The invention relates to a fuel injection device for internal combustion engines and to a method for fuel injection. The invention is directed to an injection nozzle system that while having high intrinsic safety of an injection pump, in the case of electrically controlled pumps, assures fast element filling and simultaneously effective cooling of the injection nozzle as well. According to the invention, an additional final control element is provided between the pump work chamber and the pressure chamber of the injection nozzle and dependent upon the pressure in the pump work chamber the position of the final control element controls a direct fuel delivery path into the pump work chamber.
    Type: Grant
    Filed: May 14, 1992
    Date of Patent: October 26, 1993
    Assignee: Robert Bosch GmbH
    Inventor: Andre Brunel
  • Patent number: 5050558
    Abstract: In the proposed fuel injection pump of the radial-piston pump type, the fuel injection rate can be controlled exactly by means of an electrically controlled valve which monitors a relief channel (66) of the pump working space (53) and which, by means of its closing time, determines the period of high-pressure injection during the pump-piston feed strokes. In order utilize the total length of the flanks of the drive cams as efficiently as possible, additionally injection adjustment is carried out as a result of the rotation of an essentially stationary part (13, 33) of the cam drive of the pump pistons (37) of the fuel injection pump relative to the rotary-driven part (8,9) of this cam drive. At the same time, on a fuel injection pump with a rotary-driven cam ring (9), there is a separation between a roller-carrying part (13) and a part (33) carrying pistons (37).
    Type: Grant
    Filed: November 16, 1987
    Date of Patent: September 24, 1991
    Inventors: Andre Brunel, Gerard Duplat, Jean Leblanc
  • Patent number: 5020493
    Abstract: A distributor fuel injection pump for internal combustion engines, having a cam ring which drives at least one radial piston and having a distributor piston disposed transversely to the cam ring and defining a pump work chamber, having a distributor groove and longitudinal intake grooves in the jacket face. For shutoff of the engine, this distributor piston is axially displaceable and thereby undergoes a relative rotation relative to the cam ring, so that the longitudinal intake grooves upon the compression stroke of the pump piston come precisely to coincide with intake conduits and by this means the pumped fuel is pumped directly back into a suction chamber of the injection pump.
    Type: Grant
    Filed: December 4, 1989
    Date of Patent: June 4, 1991
    Assignee: Robert Bosch GmbH
    Inventor: Andre Brunel
  • Patent number: 4976236
    Abstract: A fuel injection pump comprising a pump piston comprising a pump working space communicating with a fuel supply space and an injection nozzle of an internal combustion engine to be filled with fuel during a pump piston intake stroke and to provide for flow of delivery fuel to the injection nozzle during a pump piston delivery stroke, a first pilot valve for controlling a quantity of fuel delivered to the injection nozzle and an arrangement for dividing the delivered quantity into preliminary and main quantities, the dividing arrangement comprising an assembly for venting a portion of fuel from the pump working chamber during the pump piston delivery stroke and a second pilot valve for controlling an amount of fuel vented from the pump working chamber.
    Type: Grant
    Filed: November 21, 1988
    Date of Patent: December 11, 1990
    Assignee: Robert Bosch GmbH
    Inventor: Andre Brunel
  • Patent number: 4889096
    Abstract: A fuel injection pump formed as a radial piston pump having an encompassing cam ring, which drives pump pistons and a feed piston, which feed piston is embodied as a feed pump and is urged by a spring in the direction of the cam race. This arrangement results in a small size for the pump, in which sealing problems are substantially reduced and only a small idle fuel volume must be moved. By means of this fuel injection pump, a relatively high fill pressure in a pump work chamber is attained.
    Type: Grant
    Filed: April 4, 1989
    Date of Patent: December 26, 1989
    Assignee: Robert Bosch GmbH
    Inventor: Andre Brunel
  • Patent number: 4840162
    Abstract: In a fuel injection pump for internal combustion engines having at least one pump piston defining a pump work chamber and set into reciprocating motion by a cam drive for executing an intake stroke and a supply stroke, and having an electrical switching valve controlling the duration of supply and disposed in a relief line leading from the pump work chamber to a pump interior, a non-return valve having an opening direction toward the pump work chamber is disposed in a fuel inflow line connecting the pump interior with the pump work chamber in order to attain an emergency stoppage of the engine in the event the switching valve malfunctions. The valve element of the non-return valve is acted upon on one side by a valve closing spring and on the other by a fuel-filled control chamber, with which the valve element is locked in its closing position during the closed position of the switching valve.
    Type: Grant
    Filed: May 10, 1988
    Date of Patent: June 20, 1989
    Assignee: Robert Bosch GmbH
    Inventor: Andre Brunel