Patents by Inventor Klaus Dobler

Klaus Dobler 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: 6670060
    Abstract: A fuel cell system has a single-stage or multistage gas generation unit for producing a hydrogen-rich gas from an untreated fuel, a single-stage or multistage gas cleaning unit, at least one fuel cell and a single-stage or multistage exhaust-gas treatment unit for converting the fuel cell exhaust gases as completely as possible. At least two sub-units of the fuel cell system are connected to one another mechanically and in terms of flow by means of a connecting plate.
    Type: Grant
    Filed: April 23, 2001
    Date of Patent: December 30, 2003
    Assignee: Ballard Power Systems AG
    Inventors: Uwe Griesmeier, Dietmar Mirsch, Wolfgang Schmid, Alfred Haug, Klaus Dobler
  • Publication number: 20030019303
    Abstract: An arrangement for detecting physical measurement variables, in particular force, torque, stress and/or acceleration, at a wheel bearing in a motor vehicle is proposed. This arrangement has a radial bearing (14, 15), a rotatable component (13, 24) interconnected with the radial bearing (14, 15), a sensing device (30) with which at least one physical measurement variable capable of being transferred from the rotatable component (13, 24) to the radial bearing (14, 15) can be detected, and a further device (16) interconnected with the radial bearing (14, 15) with which the rotational speed of the rotatable component (13, 24) can be influenced.
    Type: Application
    Filed: August 30, 2002
    Publication date: January 30, 2003
    Inventors: Klaus Dobler, Erich Zabler, Anton Dukart, Martin Borsik, Dietmar Arnst, Gottfried Flik, Hans-Peter Trah, Volker Imhof
  • Patent number: 6369565
    Abstract: In a method for determining a thickness of a layer of electromagnetically conductive material, the measurement errors resulting from different quality of the basic material are eliminated. For each basic material, one dimensionless characteristic value (K) is ascertained. With the aid of a characteristic calibration curve, each characteristic value (K) can be assigned a correction factor (F), with which the measured value of the layer thickness (DM) can be converted into a real value of the layer thickness (D). Different electrical and magnetic properties, dictated by the different quality of the basic material, can thus be largely eliminated.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: April 9, 2002
    Assignee: Robert Bosch GmbH
    Inventors: Klaus Dobler, Hansjoerg Hachtel, Reinhard Dimke, Franz Auf Der Heide, Richard Blattert, Josef Weber
  • Patent number: 6361291
    Abstract: The invention relates to a fuel delivery unit, having a side channel pump that in a housing (13) has a pump chamber (14) and in the pump chamber (14) has an impeller (16), and having an electric motor (12) that drives the impeller (16) and has a stator and a rotor (29). The impeller (16) of the fuel delivery unit is the rotor (29) of an asynchronous motor. The electric motor (12) can be assembled from only a few, highly reliable and strong components.
    Type: Grant
    Filed: April 3, 2000
    Date of Patent: March 26, 2002
    Assignee: Robert Bosch GmbH
    Inventors: Klaus Dobler, Michael Huebel, Willi Strohl
  • Publication number: 20020004153
    Abstract: A fuel cell system has a single-stage or multistage gas generation unit for producing a hydrogen-rich gas from an untreated fuel, a single-stage or multistage gas cleaning unit, at least one fuel cell and a single-stage or multistage exhaust-gas treatment unit for converting the fuel cell exhaust gases as completely as possible. At least two sub-units of the fuel cell system are connected to one another mechanically and in terms of flow by means of a connecting plate.
    Type: Application
    Filed: April 23, 2001
    Publication date: January 10, 2002
    Inventors: Uwe Griesmeier, Dietmar Mirsch, Wolfgang Schmid, Alfred Haug, Klaus Dobler
  • Patent number: 6220826
    Abstract: A delivery unit for motor fuel includes a side channel pump and an electric motor that drives the side channel pump. The electric motor has an armature winding, a permanent magnet (37), and a rotor (29). The rotor (29) and the impeller (16) of the side channel pump are a single component, and the permanent magnet (37) is inserted with positive engagement into a circumference (35) of this component. This allows the production of an especially low-height, low-leakage side channel pump.
    Type: Grant
    Filed: September 28, 1999
    Date of Patent: April 24, 2001
    Assignee: Robert Bosch GmbH
    Inventors: Klaus Dobler, Michael Huebel
  • Patent number: 6213734
    Abstract: The motor fuel delivery unit for delivering motor fuel includes a delivery pump (11) and an electric motor (12) for driving the delivery pump (11). The delivery pump (11) includes a housing (13) provided with a pump chamber (14) and an impeller wheel (16) arranged in the pump chamber (14). The electric motor (12) includes a stator (28) provided with an armature winding (32) and a rotor (29) provided with permanent magnets (30). The electric motor (12) is brushless and consists of the impeller wheel (16) of the delivery pump (11). The stator (28) has an inner ring face consisting of a peripheral wall (143) of the pump chamber (14).
    Type: Grant
    Filed: July 9, 1999
    Date of Patent: April 10, 2001
    Assignee: Robert Bosch GmbH
    Inventors: Ernst Imhof, Klaus Dobler, Michael Huebel
  • Patent number: 6198278
    Abstract: A process for determining a thickness of a layer of electrically conductive material, any measurement errors are converted into dimensionless norm values with the aid of a normalization process. In this conversion, measurement errors, for example due to temperature drift and different electrical and magnetic properties of the base material of the carrying body can be largely eliminated. These norm values are converted into layer thickness values with the aid of a calibration curve.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: March 6, 2001
    Assignee: Robert Bosch GmbH
    Inventors: Klaus Dobler, Hansjoerg Hachtel, Reinhard Dimke, Franz Auf der Heide, Richard Blattert, Josef Weber
  • Patent number: 6179579
    Abstract: A multi-stage side-channel pump (1) in particular for fuel for a motor vehicle, having at least first blade chambers (16) of a precursor stage (7) and second blade chambers (17) of a main stage (10). The side-channel pump (1) has an electric motor (19) for driving an impeller (13). The electric motor (19) has a rotor (22) and a stator (24). The first blade chambers (16) of the precursor stage (7) and the second blade chambers 17 of the main stage (10) are integrated with the impeller (13). The impeller (13) can also form the rotor (22), making it possible to produce an extremely shallow side-channel pump (1). This pump is employed preferably for fuel delivery in gasoline injection to an internal combustion engine.
    Type: Grant
    Filed: October 29, 1999
    Date of Patent: January 30, 2001
    Assignee: Robert Bosch GmbH
    Inventors: Klaus Dobler, Michael Huebel, Willi Strohl
  • Patent number: 6149404
    Abstract: A feed unit for fuel, has a pump chamber (14) and an impeller (16) disposed in the pump chamber, an electric motor (12) driving the impeller (16), the electric motor (13) with a rotor formed as the impeller (16) of the feed pump (11), in order to achieve an extremely flat design in the axial direction.
    Type: Grant
    Filed: January 7, 1999
    Date of Patent: November 21, 2000
    Assignee: Robert Bosch GmbH
    Inventors: Klaus Dobler, Michael Huebel, Willi Strohl
  • Patent number: 6017183
    Abstract: In connection with a flow pump, particularly for the conveying of fuel from a fuel tank of a motor vehicle, with a pump chamber embodied in a pump housing which is bordered by two radially extending lateral walls (12), spaced apart from each other, and a peripheral wall, connecting the lateral walls (12) along their periphery with each other, with at least one groove like lateral channel (20) disposed in one of the lateral walls (12), open toward the pump chamber, which extends, related to the flow direction in the lateral channel (200, concentrically in relation to the pump axis (22), with an interrupting strip (35), remaining between a lateral channel end (202) and a lateral channel start (201), and having a rotating impeller wheel disposed in the pump chamber, a damping groove (36), open in the direction toward the pump chamber, has been cut into the interrupting strip (35) near the lateral channel end (202), which approximately extends over the width of the lateral channel, for reducing the locally very h
    Type: Grant
    Filed: December 31, 1997
    Date of Patent: January 25, 2000
    Assignee: Robert Bosch GmbH
    Inventors: Klaus Dobler, Michael Huebel, Willi Strohl, Jochen Rose
  • Patent number: 6016104
    Abstract: An arrangement allowing a definite and reliable determination of a load resistance connected to the secondary side of a transformer includes devices, which measure exclusively the inductance of the transformer on the primary side and signal a load malfunction in the case of deviation from a predefined value.
    Type: Grant
    Filed: February 18, 1998
    Date of Patent: January 18, 2000
    Assignee: Robert Bosch GmbH
    Inventors: Klaus Dobler, Erich Zabler, Anton Dukart, Thomas Herrmann
  • Patent number: 6008547
    Abstract: An arrangement for contactless transmission of signals, e.g., between at least one circuit unit installed on the vehicle body and at least one circuit unit in a vehicle seat mounted displaceably on rails is described. This arrangement is free of wear and guarantees interference-free signal transmission. This arrangement consists of at least one repeating coil whose primary winding and secondary winding are in separate pot-type cores, one of which is mounted on a stationary vehicle part (body) and the other is mounted on the movable vehicle part (vehicle seat). Both pot-type cores are designed as rails sliding along one another and having sections such that together they form a closed circuit for the magnetic flux between the primary winding and the secondary winding.
    Type: Grant
    Filed: May 18, 1998
    Date of Patent: December 28, 1999
    Assignee: Robert Bosch GmbH
    Inventors: Klaus Dobler, Erich Zabler, Anton Dukart, Thomas Herrmann
  • Patent number: 5994788
    Abstract: The transfer unit which brings about the signal connection between an airbag installed in a steering wheel and a circuit arranged outside the steering wheel possesses a primary and a secondary winding which are located in separate annular dished cores which are mounted rotatably with respect to one another about the steering wheel axis. To ensure that the transfer unit transfers airbag measurement signals with minimal falsification, one of its two dished cores is equipped with a U-shaped cross section, and the other dished core projects into the latter, so that the magnetic flux intersects the air gaps remaining between the two dished cores preferably in a direction radial to the rotation axis.
    Type: Grant
    Filed: February 27, 1998
    Date of Patent: November 30, 1999
    Assignee: Robert Bosch GmbH
    Inventors: Klaus Dobler, Erich Zabler, Anton Dukart, Thomas Herrmann
  • Patent number: 5945744
    Abstract: In order that a signal can be transmitted without contact from a stationary vehicle part to a rotationally mounted vehicle part, in the case of axial displacement between the parts, provision is made for a rotary transformer having pot-type cores for primary and secondary windings which have L-shaped profiles. These pot-type cores are mounted coaxially inside each other such that one or a plurality of air gaps existing between them run parallel to the rotational axis and are intersected by the magnetic flux radially with respect to the rotational axis. One of the surfaces of the two pot-type cores bordering on the air gaps is provided with a bevel, which tends to decrease the width of the air gap when an axial displacement lengthens the path of the magnetic flux. One of the pot-type cores may include a plurality of ring segments.
    Type: Grant
    Filed: February 11, 1998
    Date of Patent: August 31, 1999
    Assignee: Robert Bosch GmbH
    Inventors: Klaus Dobler, Erich Zabler, Anton Dukart
  • Patent number: 5904468
    Abstract: The flow pump for supplying a fuel in a motor vehicle includes a pump housing (10) provided with a pump chamber (11) bounded by two radially-extending side walls (12,13) axially spaced from each other and connected with each other by a peripheral wall (14) and a rotatable impeller (24) arranged in the pump chamber (11) coaxial to a pump axis (22). The impeller (24) includes circumferentially spaced radial impeller blades (29) bounding axially open impeller chambers (31) and an outer ring (30) connecting the impeller blades (29) with each other. The two radially-extending side walls (12,13) are provided with respective groove-like side channels (20,21) concentric to the pump axis (22) and open to the pump chamber (11). Each radially-extending side wall (12,13) has an intervening portion (23) between a channel end (212) and a channel beginning (211).
    Type: Grant
    Filed: July 11, 1997
    Date of Patent: May 18, 1999
    Assignee: Robert Bosch GmbH
    Inventors: Klaus Dobler, Michael Huebel, Willi Strohl, Jochen Rose
  • Patent number: 5807068
    Abstract: The flow pump has an impeller (22), revolving in a pump chamber, which on each of its two axially oriented face ends (28, 29), has one ring of vanes (30) between which interstices (31) are located, and which cooperates with a feed channel (34) associated with the vanes (30) for pumping the fuel. When viewed in the radial direction relative to the rotary axis (24) of the impeller (22), the vanes (30) are positioned obliquely with respect to the rotary axis (24) in such a way that they lead ahead in the circumferential direction (21) of the impeller (22) toward the face end (28, 29) of the impeller (22). The vanes (30) and the rotary axis (24) of the impeller (22) form an angle (.alpha.) of between 25.degree. and 70.degree. that is oriented in the circumferential direction (21) of the impeller (22).
    Type: Grant
    Filed: August 21, 1996
    Date of Patent: September 15, 1998
    Assignee: Robert Bosch GmbH
    Inventors: Klaus Dobler, Michael Huebel, Willi Strohl, Jochen Rose, Bernhard Blaettel
  • Patent number: 5785490
    Abstract: The fluid pump has a pump impeller provided with vanes and driven to revolve in a pump chamber that is defined by one wall portion each in the direction of the rotary axis of the pump impeller. In both wall portions, toward the pump impeller, there is an annular supply conduit and an outlet opening that discharges into one supply conduit. The outlet opening is defined in the rotational direction of the pump impeller by a wall which comes to an end in the form of an edge of the end face of the wall portion. The edge has an inner portion, which is inclined in the rotational direction relative to the rotary axis with respect to an imaginary radial arrangement. The inner edge portion is adjoined by an outer edge portion, which relative to an imaginary rectilinear lengthening of the inner edge portion extends farther in the rotational direction. As a result of this embodiment, an improved outflow from the supply conduit through the outlet opening has been obtained.
    Type: Grant
    Filed: October 11, 1996
    Date of Patent: July 28, 1998
    Assignee: Robert Bosch GmbH
    Inventors: Klaus Dobler, Michael Huebel, Willi Strohl
  • Patent number: 5582510
    Abstract: An assembly for feeding fuel from a supply tank to an internal combustion engine, with a fuel feed pump which is driven in rotation by an electric drive motor arranged together with the feed pump in a common housing. For the pump-side axial mounting of the rotor of the drive motor, there is provided, between the rotor and an intermediate housing of the feed pump, a hydrodynamic bearing which is formed by recesses in the end faces of the rotor and/or intermediate housing, these end faces being located opposite and essentially parallel to one another so as to form an annular gap.
    Type: Grant
    Filed: October 18, 1995
    Date of Patent: December 10, 1996
    Assignee: Robert Bosch GmbH
    Inventors: Klaus Dobler, Michael Huebel
  • Patent number: 5558490
    Abstract: In a liquid pump of the side channel type, particularly an electric fuel pump, comprising a suction cover (11) having an inlet aperture (12), an intermediate casing (13) having an outlet aperture (14), and a pump impeller (15) enclosed therebetween, and also comprising concentric side channels (21, 22) which are formed in mutually oppositely situated surfaces (111, 131) of the suction cover (11) and intermediate casing (13) and into which lead an inlet opening (12) and an outlet opening (14) respectively, the geometry of the outlet opening (14) is selected, for the purpose of reducing noise and achieving greater smoothness of running, such that its aperture wall (141) bounding the end of the side channel (22) in the intermediate casing (13) extends outward with a concave curvature, at least in the side channel region, from the inner surface (131) of the intermediate casing (13) onward, and that on the other hand the geometry of the end of the side channel in the suction cover (11) has a configuration such tha
    Type: Grant
    Filed: October 13, 1995
    Date of Patent: September 24, 1996
    Assignee: Robert Bosch GmbH
    Inventors: Klaus Dobler, Thanh-Hung Nguyen-Schaefer, Michael Huebel