Patents by Inventor Werner Buse

Werner Buse 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: 9334978
    Abstract: A valve device for a hydraulic circuit includes an actuator unit, a valve unit and an opening. The actuator unit comprises an electromagnetic circuit comprising a movable armature, a core, a coil configured to be supplied with a current and a flux guiding means, and a space arranged in a valve interior between the armature and the core. The valve unit comprises an outlet, an inlet arranged between the outlet and the space in the valve interior, a valve seat arranged between the inlet and the outlet, and a valve closing body connected with the armature. The valve closing body is spring-loaded towards the valve seat. The opening is arranged at an end of the valve unit opposite to the space. The opening comprises a valve tappet arranged therein. The valve tappet is pressure-loaded and displaceable counter to the valve closing body in an opening direction.
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: May 10, 2016
    Assignee: PIERBURG GMBH
    Inventors: Rolf Lappan, Werner Buse, Christoph Sadowski, Lukas Romanowski
  • Patent number: 9133728
    Abstract: A fluid pressure reversing valve includes a housing, a coil carrier, a coil wound on the coil carrier, a bearing, an armature axially displaceable in the bearing, a core, a flux guiding device, a first connection bore, a control chamber, a first valve seat. A connection sleeve comprises a second connection bore, a first valve seat for a valve element of the armature, and a second valve seat for the valve element of the armature. The connection sleeve communicates with a fluid to be controlled. A third connection bore is connected with the control chamber. A valve element abuts against the first valve seat in a first position so as to form a connection between the first connection bore and the third connection bore, and against the second valve seat in a second position so as to form a connection between the third connection bore and the second connection bore.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: September 15, 2015
    Assignee: PIERBURG GMBH
    Inventors: Werner Buse, Rolf Lappan, Rolf Dohrmann, Franz-Josef Schnelker, Christoph Sadowski
  • Patent number: 9127780
    Abstract: A solenoid valve includes a housing within which is arranged a coil wound onto a coil former, an armature, a core, and a multiple-part return path arrangement, which together form an electromagnetic circuit. The armature is configured to be movable and to act at least indirectly on a valve closure element mounted in the coil former via a bearing. The multiple-part return-path arrangement comprises at least one return-path cover section, a return-path side section and a return-path inner section. The return-path inner section is arranged in the coil former.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: September 8, 2015
    Assignee: PIERBURG GMBH
    Inventors: Franz-Josef Schnelker, Werner Buse, Christoph Sadowski, Rolf Lappan, Rolf Dohrmann
  • Patent number: 9091365
    Abstract: An electromagnetic pressure-regulating valve includes a housing comprising a first, a second and a third port, a valve seat, a valve closure member, an electromagnetic drive, and a biasing device. The electromagnetic drive comprises a coil wound on a coil carrier, an armature, a core, and an electromagnetic return-path device. The armature moves between a first and second end position and acts on the valve closure member. The biasing device is configured so that, when a current does not flow, the armature, and thereby the valve closure member, is positioned in a fail-safe setting on the valve seat so that a connection from the third port to each of the first and second ports is closed. The valve seat is connected via a fluid channel to the first and second ports. The armature is steplessly adjustable between the first and second end positions in every setting.
    Type: Grant
    Filed: July 2, 2012
    Date of Patent: July 28, 2015
    Assignee: PIERBURG GMBH
    Inventors: Werner Buse, Alvito Fernandes, Max Hermann, Roman Morawietz
  • Patent number: 9062570
    Abstract: A pressure-control valve includes a housing, a coil carrier, a coil wound on the coil carrier, a first bearing, an armature comprising a valve member. The armature is configured to be axially displaced in the first bearing. A core. A flux guiding device. A connection sleeve comprises a valve seat for the valve member. A first connection bore is configured to be connected with a tank and with the connection sleeve. A second connection bore is configured to be connected with a consumer. An end of the connection sleeve distant from the core comprises a control bore with a control member supported therein. The armature and the control member are configured to be in a force-transmitting operative connection at least in an opening direction of the pressure-control valve.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: June 23, 2015
    Assignee: PIERBURG GMBH
    Inventors: Werner Buse, Franz-Josef Schnelker, Rolf Dohrmann, Christoph Sadowski
  • Publication number: 20150090912
    Abstract: A pressure control valve includes a housing with a lower part and an upper part. The housing includes a coil wound on a coil carrier, an armature configured to be axially displaceable within a bearing, a core, a flux guiding device, a connection bore, and a connector comprising a valve seat for the armature. The connector and the connection bore are disposed in the lower part of the housing. The upper part of the housing is arranged in a force-locked or a form-fitting manner. A bearing bushing for the armature is provided in a portion of the connector directed towards the core. A stop bushing for the armature is provided in an opposite portion of the connector.
    Type: Application
    Filed: December 9, 2014
    Publication date: April 2, 2015
    Inventors: WERNER BUSE, FRANZ-JOSEF SCHNELKER, ROLF DOHRMANN
  • Publication number: 20140326911
    Abstract: A valve device for a hydraulic circuit includes an actuator unit, a valve unit and an opening. The actuator unit comprises an electromagnetic circuit comprising a movable armature, a core, a coil configured to be supplied with a current and a flux guiding means, and a space arranged in a valve interior between the armature and the core. The valve unit comprises an outlet, an inlet arranged between the outlet and the space in the valve interior, a valve seat arranged between the inlet and the outlet, and a valve closing body connected with the armature. The valve closing body is spring-loaded towards the valve seat. The opening is arranged at an end of the valve unit opposite to the space. The opening comprises a valve tappet arranged therein. The valve tappet is pressure-loaded and displaceable counter to the valve closing body in an opening direction.
    Type: Application
    Filed: August 21, 2012
    Publication date: November 6, 2014
    Applicant: PIERBURG GMBH
    Inventors: Rolf Lappan, Werner Buse, Christoph Sadowski, Lukas Romanowski
  • Publication number: 20140166916
    Abstract: An electromagnetic pressure-regulating valve includes a housing comprising a first, a second and a third port, a valve seat, a valve closure member, an electromagnetic drive, and a biasing device. The electromagnetic drive comprises a coil wound on a coil carrier, an armature, a core, and an electromagnetic return-path device. The armature moves between a first and second end position and acts on the valve closure member. The biasing device is configured so that, when a current does not flow, the armature, and thereby the valve closure member, is positioned in a fail-safe setting on the valve seat so that a connection from the third port to each of the first and second ports is closed. The valve seat is connected via a fluid channel to the first and second ports. The armature is steplessly adjustable between the first and second end positions in every setting.
    Type: Application
    Filed: July 2, 2012
    Publication date: June 19, 2014
    Applicant: PIERBURG GMBH
    Inventors: Werner Buse, Alvito Fernandes, Max Hermann, Roman Morawietz
  • Patent number: 8752585
    Abstract: A pressure control valve includes a housing comprising a reference pressure connection, a reference pressure chamber, a preliminary pressure connection, a preliminary pressure chamber, a control pressure connection and a control pressure chamber which are configured to cooperate with a control member moveable in an axial direction within the housing so as to adjust a desired control pressure between a preliminary pressure at the preliminary pressure connection and a reference pressure at the reference pressure connection. A driving device is configured to act on the control member. At least one first sealing device is configured to seal the reference pressure chamber against the control member. At least one second sealing device comprising a second sealing element is configured to seal the preliminary pressure chamber against the reference pressure chamber. At least one third sealing device is configured to seal the control pressure chamber against the preliminary pressure chamber.
    Type: Grant
    Filed: May 19, 2010
    Date of Patent: June 17, 2014
    Assignee: Pierburg GmbH
    Inventors: Werner Buse, Alvito Fernandes
  • Publication number: 20130302545
    Abstract: A workpiece part for a housing assembly for connecting two workpiece parts via a joining zone includes a laser beam-absorbing material, and at least one rib element arranged in the joining zone.
    Type: Application
    Filed: January 11, 2012
    Publication date: November 14, 2013
    Applicant: PIERBURG GmbH
    Inventors: Franz-Josef Schnelker, Werner Buse, Rolf Dohrmann, Alvito Fernandes
  • Patent number: 8578968
    Abstract: An electric switching valve for controlling a pneumatic actuator element includes a housing with a ventilation connection channel, a vacuum connection channel and a consumer connection channel. The vacuum connection channel comprises a first valve seat and the ventilation connection channel comprises a second valve seat. An electromagnetic drive is arranged in the housing. The electromagnetic drive is configured so that a magnetic armature is translationally movable in a passage channel to form a valve closure body for each of the vacuum connection channel and the ventilation connection channel. A cross-sectional constriction device is disposed in the ventilation connection channel.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: November 12, 2013
    Assignee: Pierburg GmbH
    Inventors: Werner Buse, Albert Denne
  • Patent number: 8579254
    Abstract: An electromagnetic drive for a valve includes a housing comprising at least one electromagnetic circuit comprising a coil wound onto a coil support, a valve closing member, at least one core, at least one magnetizable reflux member, an armature having an annular shape at least on a side facing away from the valve closing member, an adjustment device having an adjustment screw, and a device to fix the armature in a non-energized state. The armature moves between a first end position and a second end position so as to act at least indirectly on the valve closing member. The adjustment device adjusts a magnetic force. The adjustment screw is insertable through the at least the magnetizable reflux member or through the core into the armature. Supplying the coil with an electric current causes the armature to move into the first end position or into the second end position.
    Type: Grant
    Filed: June 8, 2010
    Date of Patent: November 12, 2013
    Assignee: Pierburg GmbH
    Inventors: Werner Buse, Alvito Fernandes
  • Publication number: 20130284961
    Abstract: A solenoid valve includes a housing within which is arranged a coil wound onto a coil former, an armature, a core, and a multiple-part return path arrangement, which together form an electromagnetic circuit. The armature is configured to be movable and to act at least indirectly on a valve closure element mounted in the coil former via a bearing. The multiple-part return-path arrangement comprises at least one return-path cover section, a return-path side section and a return-path inner section.
    Type: Application
    Filed: November 15, 2011
    Publication date: October 31, 2013
    Applicant: PIERBURG GMBH
    Inventors: Franz-Josef Schnelker, Werner Buse, Christoph Sadowski, Rolf Lappan, Rolf Dohrmann
  • Publication number: 20130284960
    Abstract: A solenoid valve includes a valve sleeve comprising a valve seat, a valve closure element which acts on the valve seat, and a housing. Arranged in the housing is a coil, an armature, a core, and a multiple-part return-path arrangement, which form an electromagnetic circuit. The core is arranged on a side of the housing opposite to the valve sleeve and is wound onto a coil former. The coil former comprises a first portion with an internal diameter and a receiving bushing for the valve sleeve arranged on a side opposite to the core. A movable armature acts on the valve closure element. The armature is mounted in the coil former via a bearing and comprises parts including a first part directed toward the core having a diameter. The diameter of the first part is larger than the internal diameter of the first portion of the coil former.
    Type: Application
    Filed: November 15, 2011
    Publication date: October 31, 2013
    Applicant: PIERBURG GMBH
    Inventors: Franz-Josef Schnelker, Werner Buse, Christoph Sadowski, Rolf Lappan, Rolf Dohrmann
  • Publication number: 20130264506
    Abstract: A solenoid valve includes a valve sleeve comprising a valve seat, a valve closure element which acts on the valve seat, and a housing. Within the housing is arranged a coil, a moveable armature, a core, and a multiple-part return-path arrangement, which together form an electromagnetic circuit. The core is arranged on a side of the housing opposite to the valve sleeve. The coil is wound onto a coil former. The coil former is formed as the valve sleeve and comprises a first portion with an inner diameter. The coil former is arranged on a side of the housing opposite to the core. The armature is mounted in the coil former via a bearing device and acts on the valve closure element. The armature comprises a first part directed towards the core having a diameter which is larger than the inner diameter of the first portion of the coil former.
    Type: Application
    Filed: November 15, 2011
    Publication date: October 10, 2013
    Inventors: Franz-Josef Schnelker, Werner Buse, Christoph Sadowski, Rolf Lappan, Rolf Dohrmann
  • Publication number: 20130264507
    Abstract: A solenoid valve includes a plug connection, at least one valve sleeve comprising at least one valve seat, at least one valve closure element which acts on the at least one valve seat, and a housing. Within the housing are arranged a core, a coil, an armature/plunger arrangement, and a multiple-part return-path arrangement, which together form an electromagnetic circuit. The coil is wound onto a coil former. The armature/plunger arrangement is movable and acts directly or indirectly on the at least one valve closure element. The armature/plunger arrangement is mounted in the coil former via a bearing and comprises at least one armature part and a plunger part. The plunger part is arranged in the valve sleeve and is moveable therein. The armature part is mounted in the coil former via the bearing. The armature part and the plunger part are connected to each other via the plug connection.
    Type: Application
    Filed: November 15, 2011
    Publication date: October 10, 2013
    Applicant: PIERBURG GMBH
    Inventors: Franz-Josef Schnelker, Werner Buse, Christoph Sadowski, Rolf Lappan, Rolf Dohrmann, Lukas Romanowski
  • Patent number: 8490944
    Abstract: An electromagnetic drive for a valve includes a housing and at least one electromagnetic circuit comprising a coil wound onto a coil carrier, a valve closing member, an armature movably supported between a first and a second end position which acts on the valve closing member. A device fixes the armature in a currentless state. A core is disposed at an end of the electromagnetic drive directed toward the valve closing member. A magnetizable reflux device has an adjusting bore and a circumferential recess in an area of the adjusting bore on a side facing the coil. An adjustment device has an adjusting screw and adjusts a magnetic force. The adjusting screw influences a course of magnetic field lines and is insertable into the adjusting bore in a direction of the armature. Supplying the coil with a current moves the armature into the first or the second end position.
    Type: Grant
    Filed: May 19, 2010
    Date of Patent: July 23, 2013
    Assignee: Pierburg GmbH
    Inventors: Werner Buse, Alvito Fernandes
  • Publication number: 20130112293
    Abstract: A pressure-control valve includes a housing, a coil carrier, a coil wound on the coil carrier, a first bearing, an armature comprising a valve member. The armature is configured to be axially displaced in the first bearing. A core. A flux guiding device. A connection sleeve comprises a valve seat for the valve member. A first connection bore is configured to be connected with a tank and with the connection sleeve. A second connection bore is configured to be connected with a consumer. An end of the connection sleeve distant from the core comprises a control bore with a control member supported therein.
    Type: Application
    Filed: May 24, 2011
    Publication date: May 9, 2013
    Applicant: PIERBURG GMBH
    Inventors: Werner Buse, Franz-Josef Schnelker, Rolf Dohrmann, Christoph Sadowski
  • Publication number: 20130099144
    Abstract: A fluid pressure reversing valve includes a housing, a coil carrier, a coil wound on the coil carrier, a bearing, an armature axially displaceable in the bearing, a core, a flux guiding device, a first connection bore, a control chamber, a first valve seat. A connection sleeve comprises a second connection bore, a first valve seat for a valve element of the armature, and a second valve seat for the valve element of the armature. The connection sleeve communicates with a fluid to be controlled. A third connection bore is connected with the control chamber. A valve element abuts against the first valve seat in a first position so as to form a connection between the first connection bore and the third connection bore, and against the second valve seat in a second position so as to form a connection between the third connection bore and the second connection bore.
    Type: Application
    Filed: May 27, 2011
    Publication date: April 25, 2013
    Applicant: PIERBURG GMBH
    Inventors: Werner Buse, Rolf Lappan, Rolf Dohrmann, Franz-Josef Schnelker, Christoph Sadowski
  • Publication number: 20120242437
    Abstract: An electromagnet drive for a valve includes a piston element. A housing comprises an electromagnetic circuit, a coil wound onto a coil former, an armature mounted to move between a first and second end position to act on the piston element, a core, and a magnetisable return device. The core and/or the magnetisable return device comprises an adjusting bore. The core or the magnetisable return device comprises a substantially circumferential cutout in a region of the adjusting bore on a side facing the coil. A fixing device fixes the armature in a non-energized state. An adjusting device adjusts a magnetic force. The adjusting device comprises an adjusting screw which influences a profile of magnetic field lines. The adjusting screw is insertable into the adjusting bore of the core or the magnetisable return device in a direction of the armature. Energizing the coil moves the armature into the first or second end position.
    Type: Application
    Filed: November 5, 2010
    Publication date: September 27, 2012
    Applicant: PIERBURG GMBH
    Inventors: Werner Buse, Franz-Josef Schnelker, Rolf Dohrmann