Patents by Inventor Bernhard Bronkal

Bernhard Bronkal 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: 6131540
    Abstract: A fuel injection valve which is provided for high pressure injection in self-igniting internal combustion engines and has a solenoid valve for controlling the injection. To trigger this solenoid valve, a control circuit is provided which is subdivided into a first circuit part and a second circuit part. The second circuit part is separate from the first circuit part, which jointly serves to control a number of injection valves, and are disposed on each individual injection valve. The housing is clipped onto the fuel injection valve and fuel flows through its interior for cooling purposes.
    Type: Grant
    Filed: January 14, 1998
    Date of Patent: October 17, 2000
    Assignee: Robert Bosch GmbH
    Inventor: Bernhard Bronkal
  • Patent number: 6079391
    Abstract: A fuel injection system for internal combustion engines in which a high pressure fuel reservoir is provided, from which fuel is supplied to injection valves in an electrically controlled manner. In order to reduce damage which occurs when there are leaks from the high pressure reservoir, the high pressure reservoir is enclosed by a sheath that can capture the emerging leakage fuel.
    Type: Grant
    Filed: May 14, 1997
    Date of Patent: June 27, 2000
    Assignee: Robert Bosch GmbH
    Inventors: Wilhelm Eyberg, Rainer Burkel, Bernhard Bronkal, Norbert Knab, Martin Grosser, Andreas Werner, Bernd Spielmann, Rainer Oettinger, Peter Schubert, Klaus Scherer
  • Patent number: 5945596
    Abstract: A method and a device for monitoring a fuel-metering system, in particular a common-rail system for a diesel fuel engine. A defect is recognized on the basis of an output signal from a structure-borne noise sensor.
    Type: Grant
    Filed: April 21, 1997
    Date of Patent: August 31, 1999
    Assignee: Robert Bosch GmbH
    Inventors: Rainer Burkel, Bernhard Bronkal, Jurgen Biester, Martin Grosser, Rainer Ottinger, Wilhelm Eyberg, Lutz-Martin Fink
  • Patent number: 5533485
    Abstract: A fuel injection device for internal combustion engines with a high-pressure fuel pump which pumps fuel out of a low-pressure space into a high-pressure collecting space which is connected by high-pressure lines to injection valves projecting into the combustion space of the internal combustion engines to be supplied, wherein the high-pressure collecting space is formed by a distributor rail resistant to high pressures which is integrated into the wall of a cylinder-head cover arranged on the internal combustion engine.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: July 9, 1996
    Assignee: Robert Bosch GmbH
    Inventor: Bernhard Bronkal
  • Patent number: 5351666
    Abstract: In a method and device for controlling an internal combustion engine, particularly a diesel engine, when the internal combustion engine is started up, a power-regulating, controlling mechanism is triggered in a first step so as to allow it to assume a starting position. A starter is triggered in a subsequent step. An interrupting device, which is operatively connected to the power-regulating, controlling mechanism, is released only after a safety condition is fulfilled.
    Type: Grant
    Filed: June 22, 1993
    Date of Patent: October 4, 1994
    Assignee: Robert Bosch GmbH
    Inventors: Bernhard Bronkal, Martin Grosser
  • Patent number: 5339680
    Abstract: A method for sensing the temperature of the air supplied to the combustion chambers of an internal combustion engine for the purpose of detecting air mass. Air temperature can be measured using an inexpensive detector having a transfer function exhibiting a delayed response. Dynamic performance is improved by applying to the detected temperature a temperature correction value that is obtained by applying a transfer function that is substantially the inverse of the transfer function of the temperature detector.
    Type: Grant
    Filed: June 3, 1992
    Date of Patent: August 23, 1994
    Assignee: Robert Bosch GmbH
    Inventors: Bernhard Bronkal, Wolfram Gerwing, Hermann Grieshaber, Manfred Birk, Gerhard Engel
  • Patent number: 5048488
    Abstract: A method and apparatus reduces the amount of residual injection fluid within an injection pump. When an associated internal combustion engine is shut off, a stop valve in the injection pump is closed and an injection timing mechanism is shifted into an early position after a predetermined waiting time has expired. The length of the waiting time is selected in order to enable the injection fluid already supplied to the pump at the instant that the stop valve is closed, to enter the interior of the pump while the injection timing mechanism is in an existing working position.
    Type: Grant
    Filed: December 18, 1990
    Date of Patent: September 17, 1991
    Assignee: Robert Bosch GmbH
    Inventor: Bernhard Bronkal