Patents Assigned to Pierburg GmbH
  • Adjustment device for an internal combustion engine
    Patent number: 6957641
    Abstract: The invention relates to an adjustment device (1) for an internal combustion engine, particularly for adjustment of shafts with adjusting members. Heretofore known open/close switches are relatively large and cost-intensive in their production. For this reason, an adjustment device (1) is proposed, in which a set of gears (5) simply comprising a worm (7) and a partial ring worm gear (8) wherein pin magnets are disposed on the partial ring worm gear. The pin magnets (11) work functionally together with a non-moving switch (16) disposed in a housing (2,3) when a signal is produced by means of the magnetic field of the magnets (11) passing by the switch (16), which stops motor (4) and, as the case may be, predetermines a direction change. Thus, a right/left movement of the motor (4), along with a timely turning off of the motor can be achieved with only one external control signal.
    Type: Grant
    Filed: May 13, 2004
    Date of Patent: October 25, 2005
    Assignee: Pierburg GmbH
    Inventors: Frank Burger, Norbert Ludwig
  • Contact unit
    Patent number: 6958918
    Abstract: A contact unit described includes a contact plate and a connection plug 4 for an adjusting device. A position sensor is disposed on the contact plate whose electrical contact results over conductor tracks 13 molded into the contact plate. The contact plate 8 further includes contact flags 12 for contacting an electromotor, wherein the contact flags 12 are led outside to a plug 4 over conductor tracks that are injected into the contact plate 8. All conductor tracks are led in a fixed position with respect to one another in a plug inner portion 14, wherein this plug inner portion is produced in one injection process with the contact plate 8, and connection between the contact plate 8 and the plug inner portion results only through the conductor tracks 13.
    Type: Grant
    Filed: November 10, 2004
    Date of Patent: October 25, 2005
    Assignee: Pierburg GmbH
    Inventors: Thomas Schroder, Marc-Anton Munich, Peter Nitsch, Michael Glasser
  • Flap bearing mounting
    Publication number: 20050196309
    Abstract: Flap bearing mountings of the present invention are for mounting flap devices (5), such as switch-over, tumble, or swirl flap devices, on a housing (2) of an air intake port system (1) of a combustion engine. Mounting of flap devices (5) is accomplished by thermoforming projections (19) that are formed on bearing elements (10) of the flap device (5) and that extend through corresponding apertures (20) formed in the housing (2) of the air intake port system (1) of a combustion engine. This structure makes it possible to cost-effectively and precisely mount one-piece flap shafts (6, 7) in all air intake port systems (1), without having to use additional mounting elements. Through the exact, precise fixing of the mounted position, deformation of the shaft (6, 7), having flap bodies (8) arranged thereon, is reliably prevented and the service life of the entire flap device (5) is prolonged.
    Type: Application
    Filed: March 3, 2005
    Publication date: September 8, 2005
    Applicant: PIERBURG GMBH
    Inventor: Hans-Jurgen Husges
  • Wet-type rotor pump
    Patent number: 6939115
    Abstract: A wet-type rotor pump which is particularly suitable for feeding coolant in motorcar engines comprises a pump wheel. By the pump wheel, a feed medium is fed through an intake channel into a discharge channel. Via a common shaft, a motor armature of an electric motor is connected with the pump wheel. The motor armature is surrounded by a slit pot, feed medium flowing around the motor armature to cool it. The shaft is supported by two radial bearings, one radial bearing being arranged in a supporting element. The supporting element that is arranged within the intake channel further comprises an abutting surface on which a flow surface of the pump wheel abuts to take up axial forces.
    Type: Grant
    Filed: August 2, 2002
    Date of Patent: September 6, 2005
    Assignee: Pierburg GmbH
    Inventors: Andreas Knoll, Michael Weinert
  • Control device/mechanism for a motor for adjusting a control unit
    Patent number: 6924609
    Abstract: The invention relates to a control device for a motor for adjusting a control unit. A motor (5) that serves for adjusting a control unit (20) is shut off in a known control device with at least one Hall switch, when the control unit (20) has achieved a desired position. In the aforementioned variant, it is proposed that the running direction of the motor (5) is determined by a signal (UH) obtained from such a Hall switch, and, if necessary, the motor (5) is prepared for reversal.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: August 2, 2005
    Assignee: Pierburg GmbH
    Inventors: Frank Bürger, Norbert Ludwig
  • High-pressure valve
    Patent number: 6920898
    Abstract: A high-pressure valve comprises an intake channel and two outlet channels. Further, an actuator is provided for opening and closing the outlet channels. According to the invention, the actuator is provided with a connection channel. The connection channel makes it possible to reduce a pressure difference between the intake channel and the closed outlet channel prior to opening the outlet channel. For this purpose, a channel opening will be opened by displacement of a control element arranged in the connection channel.
    Type: Grant
    Filed: February 5, 2003
    Date of Patent: July 26, 2005
    Assignee: Pierburg GmbH
    Inventors: Rolf Lappan, Martin Nowak, Michael Benra, Dirk Hunkel
  • Contact unit
    Publication number: 20050106928
    Abstract: A contact unit described includes a contact plate and a connection plug 4 for an adjusting device. A position sensor is disposed on the contact plate whose electrical contact results over conductor tracks 13 molded into the contact plate. The contact plate 8 further includes contact flags 12 for contacting an electromotor, wherein the contact flags 12 are led outside to a plug 4 over conductor tracks that are injected into the contact plate 8. All conductor tracks are led in a fixed position with respect to one another in a plug inner portion 14, wherein this plug inner portion is produced in one injection process with the contact plate 8, and connection between the contact plate 8 and the plug inner portion results only through the conductor tracks 13.
    Type: Application
    Filed: November 10, 2004
    Publication date: May 19, 2005
    Applicant: Pierburg GmbH
    Inventors: Thomas Schroder, Marc-Anton Munich, Peter Nitsch, Michael Glasser
  • Position sensor
    Patent number: 6873150
    Abstract: A position sensor which is particularly suitable for the rotational angle detection of throttle or exhaust gas valves comprises a permanent magnet and at least two magnetic field sensors arranged adjacently to the permanent magnet. The magnetic field sensors are, for example, Hall sensors. By a relative movement between the permanent magnet and the magnetic field sensors, a position-dependent signal, for example in dependence on a rotational angle of the shaft, is produced. According to the invention, the two magnetic field sensors are arranged behind each other in field direction of the permanent magnet.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: March 29, 2005
    Assignee: Pierburg GmbH
    Inventors: Frank Buerger, Norbert Ludwig
  • Potentiometer device for determination of valve positions
    Publication number: 20050046425
    Abstract: A potentiometer device, for detecting valve positions, wherein a voltage signal Us is sendable to a control unit having an A/D converter, including a carrier element on which at least one slider track, having a slider element in contact therewith, is disposed; wherein the slider track switches between supply voltage Uv of the control unit and ground, and the slider element is connected with the control unit with a protection resistance over an output, wherein the control unit includes a resistance for detecting a cable disconnect, which is a pull-down resistance between voltage signal Us and ground, or a pull-up resistance between supply voltage Uv and voltage signal Us, wherein a resistance is provided at output, that is, in a first embodiment, a pull-up resistance between supply voltage Uv and voltage signal Us, and, in a second embodiment, a pull-down resistance between voltage signal Us and ground.
    Type: Application
    Filed: August 26, 2004
    Publication date: March 3, 2005
    Applicant: Pierburg GmbH
    Inventor: Frank Junker
  • Exhaust gas feeding device for an internal combustion machine
    Publication number: 20050034713
    Abstract: Exhaust gas feeding device for a internal combustion machine for introducing exhaust gas into a suction channel section of an intake manifold through at least one opening, having an exhaust gas feed section, an exhaust gas feedback valve and an exhaust gas introduction plate that forms a annular channel in the wall region of the suction channel section, wherein the exhaust gas introduction plate is designed as a stamped part with formable webs in such a manner that the webs define a ring channel annular channel with openings in the built-in state of the exhaust gas introduction plate.
    Type: Application
    Filed: August 16, 2004
    Publication date: February 17, 2005
    Applicant: Pierburg GmbH
    Inventor: Hans-Jurgen Husges
  • Motor control for an EC-motor
    Patent number: 6850018
    Abstract: The invention rests on the idea that the information for controlling an EC-motor is taken from the adjustment or position of the control unit, which can be ascertained by means of a position indicator, such as a potentiometer, Hall indicator, etc. The current pattern for the EC-motor can thereafter, for example, be determined in a microcomputer disposed in the motor control for the control unit, without the motor having a rotor position determination.
    Type: Grant
    Filed: February 21, 2003
    Date of Patent: February 1, 2005
    Assignee: Pierburg GmbH
    Inventors: Wolfgang Zacher, Andreas Knoll, Stefan Beyer
  • Flap valve for fuel aggregates
    Patent number: 6840502
    Abstract: A flap valve for fuel aggregates, such as fuel cells, comprises a flap arranged within a flow channel. A shaft for pivoting the flap is connected to the flap. Further, a seal disposed in a recess of the channel wall is provided, which comprises at least one pressure pocket connected with the flow channel.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: January 11, 2005
    Assignee: Pierburg GmbH
    Inventors: Peter Haushaelter, Michael Benra, Rolf Lappan, Martin Nowak
  • Adjustment device for an internal combustion engine
    Publication number: 20050000491
    Abstract: The invention relates to an adjustment device (1) for an internal combustion engine, particularly for adjustment of shafts with adjusting members. Heretofore known open/close switches are relatively large and cost-intensive in their production. For this reason, an adjustment device (1) is proposed, in which a set of gears (5) simply comprising a worm (7) and a partial ring worm gear (8) wherein pin magnets are disposed on the partial ring worm gear. The pin magnets (11) work functionally together with a non-moving switch (16) disposed in a housing (2,3) when a signal is produced by means of the magnetic field of the magnets (11) passing by the switch (16), which stops motor (4) and, as the case may be, predetermines a direction change. Thus, a right/left movement of the motor (4), along with a timely turning off of the motor can be achieved with only one external control signal.
    Type: Application
    Filed: May 13, 2004
    Publication date: January 6, 2005
    Applicant: Pierburg GmbH
    Inventors: Frank Burger, Norbert Ludwig
  • Air intake channel system for internal combustion engines
    Patent number: 6810848
    Abstract: An air intake channel system for internal combustion engines is provided. The system includes several air intake channels each of which is formed by at least a first and a second channel member. A common channel member is allocated to two of the air intake channels and includes two air inlet openings. By pivoting the common channel member, the length of the air intake channels can be jointly varied.
    Type: Grant
    Filed: April 9, 2003
    Date of Patent: November 2, 2004
    Assignee: Pierburg GmbH
    Inventors: Tomislav Vadlja, Armin Huck, Hans-Ulrich Kuehnel
  • Electric motor
    Patent number: 6784584
    Abstract: The electric motor comprises an internal rotor and an external stator with stator windings. The rotor comprises several permanently magnetic pole shoes. The stator windings are supported by stator pole shanks comprising, radially inside, stator pole shoes facing the rotor pole shoes. Via a short circuit bridge, the stator pole shoes are connected with the adjacent stator pole shoes so that all the stator pole shanks are integrally formed with each other. Radially outside, the stator pole shanks and stator pole shoes are connected with each other only by a separate yoke ring set thereon. All the windings are wound from radially outside with one single continuous winding wire when the yoke ring has been removed.
    Type: Grant
    Filed: October 23, 2002
    Date of Patent: August 31, 2004
    Assignee: Pierburg GmbH
    Inventors: Andreas Knoll, Wolfgang Zacher, Michael Weinert
  • Holder for electro-pneumatic components
    Patent number: 6734358
    Abstract: A holder for electro-pneumatic components for vehicles provides for a base plate with fastening elements for fastening the holder in the vehicle. Holding elements for releasable holding the electro-pneumatic components are connected to the base plate. The fixing elements each have two holding arms designed as click-in elements. Further, a fixing element in the form of a small elastic plate, such as a rubber disc, is provided. The fixing element presses the electro-pneumatic component against an abutment for a vibration-resistant fixation.
    Type: Grant
    Filed: November 22, 2002
    Date of Patent: May 11, 2004
    Assignee: Pierburg, GmbH
    Inventors: Albert Denne, Rolf Dohrmann, Janust Zurke
  • Air intake duct system for internal combustion engines
    Patent number: 6732696
    Abstract: An air intake duct system for internal combustion engines, and in particular for V-engines, comprises a plurality of air intake ducts (10, 12). Each air in-take duct is formed by two duct portions (18), and (20) and (22), respectively. The second duct portions (20, 22) are arranged to swivel about a swivelling axis (34) and (36), respectively, for varying the length of the air intake duct. According to the invention the two swivelling axes (34, 36) are supported in a common bearing part (44) which comprises two swivelling axis bearings each provided for one of the two swivelling axes (34, 36).
    Type: Grant
    Filed: July 12, 2002
    Date of Patent: May 11, 2004
    Assignee: Pierburg GmbH
    Inventor: Hans-Juergen Huesges
  • Electromagnetic actuator for a valve in the automotive field
    Patent number: 6719265
    Abstract: An electromagnetic actuator, particularly for use with valves in the automotive field, such as, for example, exhaust-gas recirculation valves, secondary-air valves, etc., having a housing with an electrical connector plug, a magnetic yoke, a coil unit, a guide element, a magnetic core and an armature that cooperates with a valve adjusting member. The armature is formed by first and second armature elements, the second armature element being in the form of a disk mounted so that it is spaced from the first armature element by an air gap when current is not supplied to the actuator whereby high, abrupt force is developed on the first armature element to open the valve when current is supplied.
    Type: Grant
    Filed: September 4, 2002
    Date of Patent: April 13, 2004
    Assignee: Pierburg GmbH
    Inventors: Martin Kloda, Markus Herring, Gunther Weitkamp, Heinz Creutz
  • Pole ring
    Publication number: 20040041487
    Abstract: A pole ring particularly suitable for d.c. motors comprises several retaining projections (34,36) provided at the outer circumference (32) for the secure retainment in a motor housing (10). The retaining projections (34,36) comprise retaining surfaces (40) pointing oppositely to the mounting direction (38). Fixing is effected via the retaining surfaces (40) in a housing (10) made of a soft material, such as aluminum diecasting or plastic, for example.
    Type: Application
    Filed: August 26, 2003
    Publication date: March 4, 2004
    Applicant: Pierburg GmbH
    Inventors: Ismail Onder, Isao Fukumoto
  • Ball valve
    Publication number: 20040036052
    Abstract: A ball valve particularly suitable for fuel aggregates comprises an outlet channel (12,14) and at least one inlet channel (16). Between the outlet channel (12,14) and the inlet channel (16), a switching element (20) is provided. A sealing element (24,26) contacts the switching element (20). In order to increase the sealing effect, the sealing element (24,26) comprises two sealing lips (28,30) each of which contacts the switching element (20) on a circular line.
    Type: Application
    Filed: August 20, 2003
    Publication date: February 26, 2004
    Applicant: Pierburg GmbH
    Inventors: Martin Nowak, Rolf Lappan, Dirk Hunkel, Peter Haushalter