Patents by Inventor Christiane Bauer

Christiane Bauer 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: 10697543
    Abstract: A sliding element, in particular a piston ring has an outer circumferential running surface of the piston ring, has no nitriding layer, preferable no surface hardening the running surface has as an outermost layer, which differs from the intermediate layer, a DLC layer or a metal-based nitride layer, preferable a metal nitride layer, preferably a CrN layer. Provided between the substrate of the sliding element and the DLC layer there is at least one metal-containing intermediate layer, preferably a metal layer, particularly preferable a chromium layer, and at least one further surface of the sliding element, preferably the piston ring flanks, is surface-hardened, preferably has a nitriding layer.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: June 30, 2020
    Assignee: Federal-Mogul Burscheid GmbH
    Inventor: Christiane Bauer
  • Patent number: 10370755
    Abstract: A piston ring is produced in which a piston ring base body made of cast iron or cast steel is coated with at least one PVD layer having a variable layer thickness, such that an increased layer thickness is present in the region of the ring ends compared to the remaining circumferential region of the piston ring base body, wherein the piston ring base body is configured so that, in the cold operating state with the engine not running, the radial pressure distribution of the piston ring base body is such that the ring ends exhibit substantially no radial pressure across a defined circumferential angle, and the variable layer thickness of the PVD layer is set so that a substantially uniform radial pressure distribution is present along the entire ring circumference of the piston ring at a piston ring temperature above 150° C.
    Type: Grant
    Filed: May 10, 2014
    Date of Patent: August 6, 2019
    Assignee: Wilmington Trust, National Association, as Collateral Trustee
    Inventors: Ralf Lammers, Christiane Bauer, Yurly Ivanov
  • Publication number: 20180259069
    Abstract: Disclosed is a piston ring having a substrate to which a wear resistant coating is applied that includes at least one first element with a melting point Tm>760° C. The wear resistant coating contains at least one second element with a melting point Tm>760° C. The wear resistant coating also includes droplets which have a diameter and which contain at least the first element, where at least 90% of the droplets have a value 1 ?m?D?10 ?m. In the method for producing a wear resistant coating using an arc evaporation techniques, the target material includes at least one first element with a melting point Tm>760° C. and at least one second element with a melting point Tm>760° C., wherein the quantity of the second material contained in the target material is such that the melting point Tm of the target material >1000° C.
    Type: Application
    Filed: March 12, 2018
    Publication date: September 13, 2018
    Inventors: RALF LAMMERS, CHRISTIANE BAUER, MANFRED FISCHER, JORG VETIER
  • Patent number: 10000840
    Abstract: The invention relates to a piston ring which is produced from a carrier material, especially steel or a cast material. The piston ring has a wear-resistant coating from a periodic multilayer system, every periodicity consisting of at least two individual metal nitride layers. The multilayer system has superlattice structures, the thickness of an individual layer being ?2 nm to <15 nm and the thickness of the multilayer system being >4.5 ?m and adjacent individual layers within the periodicity having different metallic elements.
    Type: Grant
    Filed: October 1, 2007
    Date of Patent: June 19, 2018
    Assignee: Federal-Mogul Burscheid GmbH
    Inventors: Manfred Fischer, Ralf Lammers, Christiane Bauer, Steffen Hoppe
  • Patent number: 9915346
    Abstract: Disclosed is a piston ring (1) having a substrate (10) to which a wear resistant coating (20) is applied that includes at least one first element with a melting point Tm?700° C. The wear resistant coating (20) contains at least one second element with a melting point Tm>760° C. The wear resistant coating also includes droplets (30) which have a diameter (D) and which contain at least the first element, wherein at least 90% of the droplets (30) have a value 1 ?m?D?10 ?m. In the method for producing a wear resistant coating (20) using an arc evaporation technique, the target material includes at least one first element with a melting point Tm?700° C. and at least one second element with a melting point Tm>760° C., wherein the quantity of the second material contained in the target material is such that the melting point (Tm) of the target material ?1000° C.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: March 13, 2018
    Assignee: Federal-Mogul Burscheid GmbH
    Inventors: Ralf Lammers, Christiane Bauer, Manfred Fischer, Jorg Vetter
  • Patent number: 9598763
    Abstract: The invention relates to a piston ring which is produced from a carrier material, especially steel or a cast material. The piston ring has a wear-resistant coating from a periodic multilayer system, every periodicity consisting of at least two individual metal nitride layers. Adjacent individual layers within the periodicity have different metallic elements. The thickness of an individual layer is ?15 nm.
    Type: Grant
    Filed: October 1, 2007
    Date of Patent: March 21, 2017
    Assignee: Federal-Mogul Burscheid GmbH
    Inventors: Manfred Fischer, Ralf Lammers, Christiane Bauer, Steffen Hoppe
  • Patent number: 9447490
    Abstract: In order to avoid burn traces on piston rings, it is proposed to provide the piston ring with a wear-protection coating which consists of a material with a thermal conductivity of at least 180 W/(m·K). At least 5% vol. of the wear-protection coating consists of aluminum nitride.
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: September 20, 2016
    Assignee: Federal-Mogul Burscheid GmbH
    Inventors: Steffen Hoppe, Manfred Fischer, Christiane Bauer, Ralf Lammers
  • Publication number: 20160122862
    Abstract: A piston ring is produced in which a piston ring base body made of cast iron or cast steel is coated with at least one PVD layer having a variable layer thickness, such that an increased layer thickness is present in the region of the ring ends compared to the remaining circumferential region of the piston ring base body, wherein the piston ring base body is configured so that, in the cold operating state with the engine not running, the radial pressure distribution of the piston ring base body is such that the ring ends exhibit substantially no radial pressure across a defined circumferential angle, and the variable layer thickness of the PVD layer is set so that a substantially uniform radial pressure distribution is present along the entire ring circumference of the piston ring at a piston ring temperature above 150° C.
    Type: Application
    Filed: May 10, 2014
    Publication date: May 5, 2016
    Inventors: Ralf LAMMERS, Christiane BAUER, Yurly IVANOV
  • Publication number: 20140353923
    Abstract: Disclosed is a piston ring (1) having a substrate (10) to which a wear resistant coating (20) is applied that includes at least one first element with a melting point Tm?700° C. The wear resistant coating (20) contains at least one second element with a melting point Tm>760° C. The wear resistant coating also includes droplets (30) which have a diameter (D) and which contain at least the first element, wherein at least 90% of the droplets (30) have a value 1 ?m?D?10 ?m. In the method for producing a wear resistant coating (20) using an arc evaporation technique, the target material includes at least one first element with a melting point Tm?700° C. and at least one second element with a melting point Tm>760° C., wherein the quantity of the second material contained in the target material is such that the melting point (Tm) of the target material ?1000° C.
    Type: Application
    Filed: January 14, 2013
    Publication date: December 4, 2014
    Inventors: Ralf Lammers, Christiane Bauer, Manfred Fischer, Jorg Vetter
  • Patent number: 8273469
    Abstract: Disclosed is a piston ring comprising a supporting material and a wear-resistant coating. The wear-resistant coating is composed of a ternary system A-B—N which is applied using a PVD process and in which A and B each represent an element form the group encompassing Ti, Zr, Hf, V, Nb, Ta, Cr, Mo W, Al, Si and C, wherein A?B and N represents nitrogen. The thickness of the wear-resistant coating amounts to ?3 ?m.
    Type: Grant
    Filed: June 12, 2008
    Date of Patent: September 25, 2012
    Assignee: Federal-Mogul Burscheid GmbH
    Inventors: Steffen Hoppe, Manfred Fischer, Christiane Bauer, Ralf Lammers
  • Patent number: 8201831
    Abstract: A sliding element comprises at least one surface for sliding contact with a running face, wherein a wear layer and a run-in layer made from carbon are applied to the surface, and is characterized in that the run-in layer comprises hydrogen and nanocrystalline carbide phases. In a method for manufacturing a sliding element, the run-in layer is applied by means of a PVD process. A sliding system has an above-described sliding element and a body having a running face. A coating for a sliding element comprises a wear layer which can be applied to the upper side of the sliding element, and a run-in layer which is configured as a carbon layer, and is characterized in that the run-in layer comprises hydrogen and nanocrystalline carbide phases.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: June 19, 2012
    Assignee: Federal-Mogul Burscheid GmbH
    Inventors: Steffen Hoppe, Manfred Fischer, Ralf Lammers, Manfred Muller, Christiane Bauer, Reiner Waller, Jorg Vetter
  • Publication number: 20100187765
    Abstract: In order to avoid burn traces on piston rings, it is proposed to provide the piston ring with a wear-protection coating which consists of a material with a thermal conductivity of at least 180 W/(m.K). At least 5% vol. of the wear-protection coating consists of aluminum nitride.
    Type: Application
    Filed: July 18, 2008
    Publication date: July 29, 2010
    Inventors: Steffen Hoppe, Manfred Fischer, Christiane Bauer, Ralf Lammers
  • Publication number: 20100171272
    Abstract: Disclosed is a piston ring comprising a supporting material and a wear-resistant coating. The wear-resistant coating is composed of a ternary system A-B—N which is applied using a PVD process and in which A and B each represent an element form the group encompassing Ti, Zr, Hf, V, Nb, Ta, Cr, Mo W, Al, Si and C, wherein A ?B and N represents nitrogen. The thickness of the wear-resistant coating amounts to ?3 ?m.
    Type: Application
    Filed: June 12, 2008
    Publication date: July 8, 2010
    Inventors: Steffen Hoppe, Manfred Fischer, Christiane Bauer, Ralf Lammers
  • Publication number: 20100044969
    Abstract: The invention relates to a piston ring which is produced from a carrier material, especially steel or a cast material. The piston ring has a wear-resistant coating from a periodic multilayer system, every periodicity consisting of at least two individual metal nitride layers. The multilayer system has superlattice structures, the thickness of an individual layer being ?2 nm to <15 nm and the thickness of the multilayer system being >4.5 ?m and adjacent individual layers within the periodicity having different metallic elements.
    Type: Application
    Filed: October 1, 2007
    Publication date: February 25, 2010
    Inventors: Manfred Fischer, Ralf Lammers, Christiane Bauer, Steffen Hoppe
  • Publication number: 20100044968
    Abstract: The invention relates to a piston ring which is produced from a carrier material, especially steel or a cast material. The piston ring has a wear-resistant coating from a periodic multilayer system, every periodicity consisting of at least two individual metal nitride layers. Adjacent individual layers within the periodicity have different metallic elements. The thickness of an individual layer is ?15 nm.
    Type: Application
    Filed: October 1, 2007
    Publication date: February 25, 2010
    Inventors: Manfred Fischer, Ralf Lammers, Christiane Bauer, Steffen Hoppe
  • Publication number: 20090001669
    Abstract: A sliding element comprises at least one surface for sliding contact with a running face, wherein a wear layer and a run-in layer made from carbon are applied to the surface, and is characterized in that the run-in layer comprises hydrogen and nanocrystalline carbide phases. In a method for manufacturing a sliding element, the run-in layer is applied by means of a PVD process. A sliding system has an above-described sliding element and a body having a running face. A coating for a sliding element comprises a wear layer which can be applied to the upper side of the sliding element, and a run-in layer which is configured as a carbon layer, and is characterized in that the run-in layer comprises hydrogen and nanocrystalline carbide phases.
    Type: Application
    Filed: November 30, 2006
    Publication date: January 1, 2009
    Inventors: Steffen Hoppe, Manfred Fischer, Ralf Lammers, Manfred Muller, Christiane Bauer, Reiner Wallner, Jorg Vetter