Patents by Inventor Udo Schaich

Udo Schaich 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).

  • Publication number: 20120181358
    Abstract: The invention relates to a magnetic assembly (10) of a solenoid valve, particularly for actuating a fuel injector, having a housing (12, 16) receiving a magnetic core (28) having a magnetic coil (26). Electrical contacts (32) are led through penetrations (34) out of the housing (12, 16). The electrical contacts (32) in the housing (12, 16) for supplying the magnetic coil (26) with current are attached by means of an adhesive connection (50).
    Type: Application
    Filed: September 18, 2008
    Publication date: July 19, 2012
    Inventors: Roland Herwig, Dieter Roehr, Florian Dirscherl, Gueray Ikizalp, Udo Schaich, Thomas Sommer, Thomas Hohe, Cetin Yilmazer
  • Patent number: 8201753
    Abstract: An actuator module including a piezoactuator, for example for a piezoinjector for metering fuel in an internal combustion engine, is proposed. The piezoactuator has piezoelements stacked one above another between an actuator head and an actuator foot and is provided with at least one elastomer layer enclosing the piezoelements. The elastomer layer is enveloped by a corrugated bellows or by telescopic tubes, composed of a material that is diffusion-impermeable with respect to a fuel to be metered by the piezoinjector. The corrugated bellows or the telescopic tubes have on their periphery grooves which can absorb expansions of the elastomer layer or of the piezoactuator.
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: June 19, 2012
    Assignee: Robert Bosch GmbH
    Inventors: Rudolf Heinz, Dieter Kienzler, Udo Schaich
  • Patent number: 7872398
    Abstract: A piezoelectric actuator module having a multilayer structure of piezoelectric elements is proposed as a piezoelectric actuator, wherein a different polarity of an electric voltage is alternately applied to inner electrodes which are arranged between piezoelectric layers of the piezoelectric elements in the direction of the layer structure of the piezoelectric elements, said module having an actuator foot and an actuator head composed of steel and having an elastic insulation medium which surrounds at least the piezoelectric elements in predefined limits. At least one annular groove or recess, into which a material which can be crosslinked with the insulation medium is vulcanized, is provided on the actuator foot and/or on the actuator head, and a flexible, weldable hose or sheath lies encompasses the piezoelectric element, and at least above the grooves or recesses containing the material as an insulation medium the weldable hose is welded to the material in the grooves or recesses.
    Type: Grant
    Filed: April 18, 2007
    Date of Patent: January 18, 2011
    Assignee: Robert Bosch GmbH
    Inventors: Rudolf Heinz, Dieter Kienzler, Udo Schaich, Thomas Pauer
  • Publication number: 20100163650
    Abstract: An actuator module including a piezoactuator, for example for a piezoinjector for metering fuel in an internal combustion engine, is proposed. The piezoactuator has piezoelements stacked one above another between an actuator head and an actuator foot and is provided with at least one elastomer layer enclosing the piezoelements. The elastomer layer is enveloped by a corrugated bellows or by telescopic tubes, composed of a material that is diffusion-impermeable with respect to a fuel to be metered by the piezoinjector. The corrugated bellows or the telescopic tubes have on their periphery grooves which can absorb expansions of the elastomer layer or of the piezoactuator.
    Type: Application
    Filed: September 13, 2007
    Publication date: July 1, 2010
    Inventors: Rudolf Heinz, Dieter Kienzler, Udo Schaich
  • Patent number: 7728489
    Abstract: A piezoelectric actuator with piezoelectric elements, fastened between an actuator head and an actuator foot, and with a plastic sleeve surrounding at least the piezoelectric elements is proposed, which is set in a clamping ring on the actuator head and/or the actuator foot of the piezoelectric actuator. The respective clamping ring may be a metal part or a plastic part, which is equipped with clamping lugs suitable for setting the plastic sleeve and is thrust, pressed, or shrunk onto the respective actuator head and/or actuator foot of the steel piezoelectric actuator.
    Type: Grant
    Filed: August 29, 2007
    Date of Patent: June 1, 2010
    Assignee: Robert Bosch GmbH
    Inventors: Rudolf Heinz, Dieter Kienzler, Udo Schaich
  • Patent number: 7595579
    Abstract: A piezoelectric actuator module having a piezoelectric actuator, fastened between an actuator head and an actuator foot, and having a sheath, surrounding the piezoelectric actuator, for electrical passivation, is proposed in which the sheath is an insulation guard layer that is joined by nonpositive and/or positive engagement, by means of a mechanical attachment, to attachment components in the region of the end faces of the piezoelectric actuator or of the actuator head and/or of the actuator foot.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: September 29, 2009
    Assignee: Robert Bosch GmbH
    Inventors: Rudolf Heinz, Dieter Kienzler, Roland Herwig, Udo Schaich
  • Publication number: 20090206700
    Abstract: A piezo actuator in the form of a piezo injector, includes a holding body having an inner space, and having a piezo element disposed in an inner space and encompassing multiple piezoelectric plies disposed to form a stack, which element is electrically contactable through the holding body.
    Type: Application
    Filed: July 19, 2006
    Publication date: August 20, 2009
    Inventors: Rudolf Heinz, Dieter Kienzler, Udo Schaich
  • Publication number: 20090200897
    Abstract: A piezoelectric actuator module having a multilayer structure of piezoelectric elements is proposed as a piezoelectric actuator, wherein a different polarity of an electric voltage is alternately applied to inner electrodes which are arranged between piezoelectric layers of the piezoelectric elements in the direction of the layer structure of the piezoelectric elements, said module having an actuator foot and an actuator head composed of steel and having an elastic insulation medium which surrounds at least the piezoelectric elements in predefined limits. At least one annular groove or recess, into which a material which can be crosslinked with the insulation medium is vulcanized, is provided on the actuator foot and/or on the actuator head, and a flexible, weldable hose or sheath lies encompasses the piezoelectric element, and at least above the grooves or recesses containing the material as an insulation medium the weldable hose is welded to the material in the grooves or recesses.
    Type: Application
    Filed: April 18, 2007
    Publication date: August 13, 2009
    Applicant: ROBERT BOSCH GMBH
    Inventors: Rudolf Heinz, Dieter Kienzler, Udo Schaich, Thomas Pauer
  • Publication number: 20090050114
    Abstract: The invention relates to an injector for the fuel supply of an internal combustion engine, in particular in a motor vehicle. The injector has a piezoactuator for activating and/or actuating at least one nozzle needle to control the injection of fuel under high pressure through at least one nozzle spray hole. The piezoactuator is arranged with its shaft disposed in an actuator chamber of an injector body, and a high-pressure path directing the fuel under high pressure to at least one nozzle spray hole passes through the actuator chamber. In the injector according to the invention, the piezoactuator has an actuator foot at an end remote from the nozzle needle. The actuator foot has a sealing contour facing the nozzle needle and fitting in a sealing seat formed on the injector body remote from the nozzle needle.
    Type: Application
    Filed: March 9, 2007
    Publication date: February 26, 2009
    Inventors: Rudolf Heinz, Dieter Kienzler, Udo Schaich
  • Publication number: 20080309197
    Abstract: The invention relates to a piezoelectric actuator used as a piezoelectric injector, comprising a holding body provided with an inner region, an upper part and a lower part, and a piezoelectric element which is arranged in the inner region against the upper part of the holding body and includes a plurality of piezoelectric layers arranged in the form of a stack, The piezoelectric element can be electrically contacted through the holding body. The upper part of the holding body has at least one connection for electrically contacting the piezoelectric element, and at least one connection and flow channels for feeding the inner chamber with a fluid that can be metered by means of a regulating element containing the piezoelectric element. An electrical plug-in connection is arranged between the piezoelectric element and the upper part of the holding body, which includes a mechanical plug-in connection being arranged between the holding body upper part and the piezoelectric element.
    Type: Application
    Filed: July 13, 2006
    Publication date: December 18, 2008
    Inventors: Rudolf Heinz, Dieter Kienzler, Udo Schaich
  • Publication number: 20080265716
    Abstract: A piezoelectric actuator with piezoelectric elements, fastened between an actuator head and an actuator foot, and with a plastic sleeve surrounding at least the piezoelectric elements is proposed, which is set in a clamping ring on the actuator head and/or the actuator foot of the piezoelectric actuator. The respective clamping ring may be a metal part or a plastic part, which is equipped with clamping lugs suitable for setting the plastic sleeve and is thrust, pressed, or shrunk onto the respective actuator head and/or actuator foot of the steel piezoelectric actuator.
    Type: Application
    Filed: August 29, 2007
    Publication date: October 30, 2008
    Inventors: Rudolf Heinz, Dieter Kienzler, Udo Schaich
  • Publication number: 20080141981
    Abstract: A piezoelectric actuator module having a piezoelectric actuator, fastened between an actuator head and an actuator foot, and having a sheath, surrounding the piezoelectric actuator, for electrical passivation, is proposed in which the sheath is an insulation guard layer that is joined by nonpositive and/or positive engagement, by means of a mechanical attachment, to attachment components in the region of the end faces of the piezoelectric actuator or of the actuator head and/or of the actuator foot.
    Type: Application
    Filed: August 31, 2007
    Publication date: June 19, 2008
    Inventors: Rudolf HEINZ, Dieter Kienzler, Roland Herwig, Udo Schaich
  • Patent number: 7267582
    Abstract: A plug-and-socket connection including a plug and a mating connector, the plug and the mating connector in each case having a housing in which contact elements are provided for producing the electrical plug-and-socket connection and for conducting high currents and voltages, and guide elements being provided in each case on the housing for the exact guidance of the plug. According to the present invention, the guide elements are formed as electrical contact elements. The contact elements used here are utilized, for example, to transmit data streams as currents in the low-voltage range.
    Type: Grant
    Filed: January 27, 2003
    Date of Patent: September 11, 2007
    Assignee: Robert Bosch GmbH
    Inventor: Udo Schaich
  • Patent number: 6832749
    Abstract: The present invention relates to a valve for controlling fluids, which has a piezoelectric actuator that is disposed in an actuator bore. A hydraulic booster and a bellows are also provided. The bellows is embodied such that it can absorb the axial stroke of the piezoelectric actuator. The bellows is connected solidly to the piezoelectric actuator and is also connected solidly to the actuator bore assure a fluid-tight seal of the actuator module relative to the other regions of the valve.
    Type: Grant
    Filed: April 17, 2002
    Date of Patent: December 21, 2004
    Assignee: Robert Bosch GmbH
    Inventors: Stefan Schuerg, Udo Schaich
  • Publication number: 20040235333
    Abstract: A plug-and-socket connection including a plug and a mating connector, the plug and the mating connector in each case having a housing in which contact elements are provided for producing the electrical plug-and-socket connection and for conducting high currents and voltages, and guide elements being provided in each case on the housing for the exact guidance of the plug. According to the present invention, the guide elements are formed as electrical contact elements. The contact elements used here are utilized, for example, to transmit data streams as currents in the low-voltage range.
    Type: Application
    Filed: June 22, 2004
    Publication date: November 25, 2004
    Inventor: Udo Schaich
  • Patent number: 6705299
    Abstract: The present invention relates to a leak fuel connection, in particular for a common rail system or a common rail injector, for connecting a leak fuel line via a connecting conduit to a connection end piece. The leak fuel connection, on the outer circumference of a component on which the leak fuel connection is provided, has an at least intermittently annularly embodied conduit, into which the connecting conduit for connecting to the leak fuel line discharges. The annular conduit is connected to the connection end piece via a connection element.
    Type: Grant
    Filed: July 29, 2002
    Date of Patent: March 16, 2004
    Assignee: Robert Bosch GmbH
    Inventors: Dieter Kienzler, Udo Schaich
  • Publication number: 20030019463
    Abstract: The present invention relates to a leak fuel connection, in particular for a common rail system or a common rail injector, for connecting a leak fuel line (2) via a connecting conduit (3) to a connection end piece (4). The leak fuel connection (1), on the outer circumference of a component (18) on which the leak fuel connection (1) is provided, has an at least intermittently annularly embodied conduit (5), into which the connecting conduit (3) for connecting to the leak fuel line (2) discharges. The annular conduit (5) is connected to the connection end piece (4) via a connection element (6).
    Type: Application
    Filed: July 29, 2002
    Publication date: January 30, 2003
    Inventors: Dieter Kienzler, Udo Schaich
  • Publication number: 20020134953
    Abstract: The present invention relates to a valve for controlling fluids, which has a piezoelectric actuator (2) that is disposed in an actuator bore (3). A hydraulic booster (11) and a bellows (5) are also provided. The bellows (5) is embodied such that it can absorb the axial stroke of the piezoelectric actuator (2). The bellows (5) is connected solidly to the piezoelectric actuator (2) and is also connected solidly to the actuator bore (3). This assures a fluid-tight seal of the actuator module relative to the other regions of the valve.
    Type: Application
    Filed: April 17, 2002
    Publication date: September 26, 2002
    Inventors: Stefan Schuerg, Udo Schaich
  • Patent number: 5045305
    Abstract: An oral hygiene product especially for inhibiting caries is the form of toothpaste or mouthwash. The product maintains a low fluoride ion concentration in the mouth for longer periods than conventional products by the rapid precipitation of calcium fluoride either in the mouth or immediately prior to use. The product comprises a composition containing calcium ions and a further composition containing fluoride ions. The ion product of the calcium and fluoride ions of the combined product preferably exceeds 3.times.10.sup.-8 mol.sup.3 dm.sup.-9.
    Type: Grant
    Filed: December 11, 1989
    Date of Patent: September 3, 1991
    Assignee: Chesebrough-Pond's USA Co., division of Conopco, Inc.
    Inventors: John R. Clarkson, Ralph M. Duckworth, Andrew M. Murray, Timothy J. Price