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).
-
Publication number: 20230134881Abstract: A sliding element, in particular a piston ring, includes a base material of martensitic or austenitic stainless steel having a chromium content of at least 6.0% by mass and a nitrided layer having a surface hardness of up to 950 HV1. A method of producing such a sliding layer is also provided.Type: ApplicationFiled: February 19, 2021Publication date: May 4, 2023Inventors: JOHANNES ESSER, STEFFEN HOPPE, CHRISTIANE BAUER
-
Patent number: 10697543Abstract: 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: GrantFiled: July 15, 2015Date of Patent: June 30, 2020Assignee: Federal-Mogul Burscheid GmbHInventor: Christiane Bauer
-
Patent number: 10370755Abstract: 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: GrantFiled: May 10, 2014Date of Patent: August 6, 2019Assignee: Wilmington Trust, National Association, as Collateral TrusteeInventors: Ralf Lammers, Christiane Bauer, Yurly Ivanov
-
Publication number: 20180259069Abstract: 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: ApplicationFiled: March 12, 2018Publication date: September 13, 2018Inventors: RALF LAMMERS, CHRISTIANE BAUER, MANFRED FISCHER, JORG VETIER
-
Patent number: 10000840Abstract: 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: GrantFiled: October 1, 2007Date of Patent: June 19, 2018Assignee: Federal-Mogul Burscheid GmbHInventors: Manfred Fischer, Ralf Lammers, Christiane Bauer, Steffen Hoppe
-
Patent number: 9915346Abstract: 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: GrantFiled: January 14, 2013Date of Patent: March 13, 2018Assignee: Federal-Mogul Burscheid GmbHInventors: Ralf Lammers, Christiane Bauer, Manfred Fischer, Jorg Vetter
-
Patent number: 9598763Abstract: 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: GrantFiled: October 1, 2007Date of Patent: March 21, 2017Assignee: Federal-Mogul Burscheid GmbHInventors: Manfred Fischer, Ralf Lammers, Christiane Bauer, Steffen Hoppe
-
Patent number: 9447490Abstract: 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: GrantFiled: July 18, 2008Date of Patent: September 20, 2016Assignee: Federal-Mogul Burscheid GmbHInventors: Steffen Hoppe, Manfred Fischer, Christiane Bauer, Ralf Lammers
-
Publication number: 20160122862Abstract: 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: ApplicationFiled: May 10, 2014Publication date: May 5, 2016Inventors: Ralf LAMMERS, Christiane BAUER, Yurly IVANOV
-
Publication number: 20140353923Abstract: 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: ApplicationFiled: January 14, 2013Publication date: December 4, 2014Inventors: Ralf Lammers, Christiane Bauer, Manfred Fischer, Jorg Vetter
-
Patent number: 8273469Abstract: 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: GrantFiled: June 12, 2008Date of Patent: September 25, 2012Assignee: Federal-Mogul Burscheid GmbHInventors: Steffen Hoppe, Manfred Fischer, Christiane Bauer, Ralf Lammers
-
Patent number: 8201831Abstract: 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: GrantFiled: November 30, 2006Date of Patent: June 19, 2012Assignee: Federal-Mogul Burscheid GmbHInventors: Steffen Hoppe, Manfred Fischer, Ralf Lammers, Manfred Muller, Christiane Bauer, Reiner Waller, Jorg Vetter
-
Publication number: 20100187765Abstract: 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: ApplicationFiled: July 18, 2008Publication date: July 29, 2010Inventors: Steffen Hoppe, Manfred Fischer, Christiane Bauer, Ralf Lammers
-
Publication number: 20100171272Abstract: 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: ApplicationFiled: June 12, 2008Publication date: July 8, 2010Inventors: Steffen Hoppe, Manfred Fischer, Christiane Bauer, Ralf Lammers
-
Publication number: 20100044969Abstract: 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: ApplicationFiled: October 1, 2007Publication date: February 25, 2010Inventors: Manfred Fischer, Ralf Lammers, Christiane Bauer, Steffen Hoppe
-
Publication number: 20100044968Abstract: 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: ApplicationFiled: October 1, 2007Publication date: February 25, 2010Inventors: Manfred Fischer, Ralf Lammers, Christiane Bauer, Steffen Hoppe
-
Publication number: 20090001669Abstract: 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: ApplicationFiled: November 30, 2006Publication date: January 1, 2009Inventors: Steffen Hoppe, Manfred Fischer, Ralf Lammers, Manfred Muller, Christiane Bauer, Reiner Wallner, Jorg Vetter