Patents by Inventor Laszlo Pelsoeczy

Laszlo Pelsoeczy 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: 11391237
    Abstract: A diesel engine piston is cast in one piece and consists of almost fully pearlitic cast iron with spheroidal graphite as the piston material. Such a piston is used for “light vehicle” diesel engines, “heavy duty” diesel engines and “large bore” diesel engines.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: July 19, 2022
    Assignee: Federal-Mogul Nurnberg GmbH
    Inventors: Rainer Weiss, Laszlo Pelsoeczy
  • Publication number: 20210231080
    Abstract: The present invention relates to a diesel engine piston which is cast in one piece and which consists of almost fully pearlitic cast iron with spheroidal graphite as the piston material. Moreover, the present invention relates to the use of such a diesel engine piston for “light vehicle” diesel engines, “heavy duty” diesel engines and “large bore” diesel engines.
    Type: Application
    Filed: May 10, 2019
    Publication date: July 29, 2021
    Inventors: RAINER WEISS, LASZLO PELSOECZY
  • Publication number: 20210003217
    Abstract: The invention relates to an MF expander spring 20 for a three-part oil scraper ring 2, 4, 6, 8. It comprises a steel band, which is corrugated in a trapezoidal or diamond-shaped manner in the axial direction, wherein the MF expansion spring 20 has axial protrusions 30, 32, which are intended to abut in each case against an upper or lower oil scraper ring 34, 36 from the inside in the radial direction, in order to press said axial protrusions outwards against an inner cylinder surface, comprises upper flat sections 24, which are intended to abut against an upper scraper ring 34, 36 of a three-part oil scraper ring 2, 4, 6, 8 in the axial direction, comprises lower flat sections 23, which are intended to abut against a lower scraper ring 34 of the three-part oil scraper ring 2, 4, 6, 8 in the axial direction, and comprises flank sections 26, 28, which extend between the upper flat sections 24 and the lower flat sections 22.
    Type: Application
    Filed: January 10, 2019
    Publication date: January 7, 2021
    Inventors: LASZLO PELSOECZY, DIRK BARENREUTER
  • Patent number: 9650702
    Abstract: A steel material composition in particular for manufacturing piston rings and cylinder liners, which has a good nitriding capability, contains the following elements in the given proportion related to 100% by weight of the steel material composition: 0.5-1.2% by weight C, 4.0-20.0% by weight Cr, 45.30-91.25% by weight Fe, 0.1-3.0% by weight Mn, 0.1-3.0% by weight Mo, 2.0-12.0% by weight Ni, 2.0-10.0% by weight Si and 0.05-2.0% by weight V. It can be manufactured by manufacturing a melt of the starting materials and casting the melt into a prefabricated mold. Nitridation of the steel material composition which is obtained leads to a nitridized steel material composition which, by virtue of the manufacture with gravity casting, exceeds the properties of tempered cast iron with nodular graphite.
    Type: Grant
    Filed: November 23, 2009
    Date of Patent: May 16, 2017
    Assignee: Federal-Mogul Burscheid GmbH
    Inventor: Laszlo Pelsoeczy
  • Patent number: 9174276
    Abstract: A piston ring exhibiting particles capable of wear resistance on its shoulder is produced by producing a melt of the base materials of a metal material, adding ceramic particles to the melt, pouring the melt into a prefabricated mold and cooling the melt. During cooling, the mold is aligned such that the ceramic particles gather on at least one of the piston ring shoulders.
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: November 3, 2015
    Assignee: Federal-Mogul Burscheid GmbH
    Inventors: Richard Mittler, Laszlo Pelsoeczy
  • Patent number: 8882937
    Abstract: The invention relates to a steel material composition, in particular for producing piston rings and cylinder sleeves, containing the following elements in the given fractions in relation to 100% by weight of the steel material: 0.03-2.0% by weight B, 0.5-1.2% by weight C, 70.1-97.3% by weight Fe, 0.1-3.0% by weight Mn and 2.0-10.0% by weight Si. Said composition can be produced by melting the starting materials and casting the melt in a pre-fabricated mold.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: November 11, 2014
    Assignee: Federal-Mogul Burscheid GmbH
    Inventor: Laszlo Pelsoeczy
  • Patent number: 8709175
    Abstract: An engine component such as, for example, an engine piston or a part thereof, for instance a ring carrier or piston boss bushing, consisting of a cast iron alloy that contains zirconium as an alloy constituent in an amount by weight of at least 0.01% and up to 0.1%.
    Type: Grant
    Filed: April 17, 2008
    Date of Patent: April 29, 2014
    Assignee: Federal-Mogul Nurnberg GmbH
    Inventors: Wojciech Kolodziej, Marck Skowron, Kazimierz Marszalik, Homi D. Jijina, Laszlo Pelsoeczy, Klaus Lades
  • Patent number: 8647448
    Abstract: A steel piston ring and a steel cylinder liner are described which comprise as the main body a steel composition which has good nitridability. The steel composition consists of the following elements: 0-0.5 weight % B, 0.5-1.2 weight % C, 4.0-20.0 weight % Cr, 0-2.0 weight % Cu, 45.30-91.25 weight % Fe, 0.1-3.0 weight % Mn, 0.1-3.0 weight % Mo, 0-0.05 weight % Nb, 2.0-12.0 weight % Ni, 0-0.1 weight % P, 0-0.05 weight % Pb, 0-0.05 weight % S, 2.0-10.0 weight % Si, 0-0.05 weight % Sn, 0.05-2.0 weight % V, 0-0.2 weight % Ti and 0-0.5 weight % W. The steel piston ring and the steel cylinder liner can be manufactured in a casting process using the machinery and technology employed for the manufacture of cast iron parts.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: February 11, 2014
    Assignee: Federal-Mogul Burscheid GmbH
    Inventor: Laszlo Pelsoeczy
  • Patent number: 8580048
    Abstract: The invention relates to a steel material composition, in particular for producing piston rings and cylinder sleeves, containing the following elements in the given fractions in relation to 100% by weight of the steel material: 0.5-1.2% by weight C, 6.0-20.0% by weight Cr, 45.0-88.5% by weight Fe, 3.0-15.0% by weight Mn and 2.0-10.0% by weight Si. Said composition can be produced by melting the starting materials and casting the melt in a pre-fabricated mold.
    Type: Grant
    Filed: October 12, 2009
    Date of Patent: November 12, 2013
    Assignee: Federal-Mogul Burscheid GmbH
    Inventor: Laszlo Pelsoeczy
  • Patent number: 8506727
    Abstract: The invention relates to a steel material composition, in particular for producing piston rings and cylinder sleeves, containing the following elements in the given fractions in relation to 100% by weight of the steel material: 0.5-1.2% by weight C, 2.0-20.0% by weight Cr, 49.0-97.1% by weight Fe, 0.1-3.0% by weight Mn, 0.1-3.0% by weight Mo, 0.-7.0% by weight Nb, 2.0-10.0% by weight Si, 0-7.0% by weight Ti, 0.-7.0% by weight V and 0.-0.5% by weight W, the sum of the fractions of Nb, Ti, V and W being 2.0-7.0% by weight. Said composition can be produced by melting the starting materials and casting the melt in a pre-fabricated mold.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: August 13, 2013
    Assignee: Federal-Mogul Burscheid GmbH
    Inventor: Laszlo Pelsoeczy
  • Publication number: 20130193648
    Abstract: A piston ring exhibiting particles capable of wear resistance on its shoulder is produced by producing a melt of the base materials of a metal material, adding ceramic particles to the melt, pouring the melt into a prefabricated mould and cooling the melt. During cooling, the mould is aligned such that the ceramic particles gather on at least one of the piston ring shoulders.
    Type: Application
    Filed: July 19, 2011
    Publication date: August 1, 2013
    Inventors: Richard Mittler, Laszlo Pelsoeczy
  • Patent number: 8317938
    Abstract: A steel composition which has good nitridability, in particular for the manufacture of piston rings and cylinder liners, contains the following elements in the following quantities expressed with respect to 100 weight % of the steel composition: 0.5-1.5 weight % Al, 0.5-1.2 weight % C, 68.2-96.9 weight % Fe, 0.1-3.0 weight % Mn and 2.0-10.0 weight % Si. It can be manufactured by producing a melt of starting materials and casting the melt into a prepared mold. Nitriding the steel composition obtained results in a nitrided steel composition produced by gravity casting manufacturing with properties that surpass those of hardened and tempered spheroidal graphite.
    Type: Grant
    Filed: November 23, 2009
    Date of Patent: November 27, 2012
    Assignee: Federal-Mogul Burscheid GmbH
    Inventor: Laszlo Pelsoeczy
  • Patent number: 8317942
    Abstract: A cast iron material, particularly a ledeburitic cast iron material with a carbide content of at least 15 wt. % and a characteristic free, evenly distributed graphite formation is disclosed. In this case, the evenly distributed graphite formation may comprise graphite flakes and/or vermicular graphite and/or nodular graphite. Depending on the respective application (diameter (D) of the running gear seal, peripheral speed), the basic matrix may be realized in pearlitic and/or bainitic and/or martensitic form. Due to the high graphite content, the material has a thermal conductivity that is three to four times greater than that of white cast iron materials, wherein this provides the advantage that no scoring of the running gear seals occurs at high peripheral speeds (>5 m/s) and large diametrical dimensions of the seals (D >600 mm). In addition, the high carbide content of at least 15 wt.
    Type: Grant
    Filed: February 8, 2006
    Date of Patent: November 27, 2012
    Assignee: Federal-Mogul Friedberg GmbH
    Inventors: Laszlo Pelsoeczy, Wilfried Langner, Hans-Henning Zutz, Thomas Gerle, Franz-J. Goebbeis
  • Patent number: 8277576
    Abstract: A steel material composition, in particular for producing piston rings and cylinder sleeves, contains the following elements in the cited fractions relative to 100% by weight of the steel material: 0.5-1.2% by weight C, 0-3.0% by weight Cr, 72.0-94.5% by weight Fe, 3.0-15.0% by weight Mn and 2.0-10.0% by weight Si. It can be produced by melting the starting materials and casting the melt into a pre-fabricated mold.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: October 2, 2012
    Assignee: Federal-Mogul Burscheid GmbH
    Inventor: Laszlo Pelsoeczy
  • Patent number: 8241559
    Abstract: The invention relates to a steel material having a high silicon content, and to a method for the production thereof, the steel material being particularly suitable for piston rings and cylinder sleeves. In addition to iron and production-related impurities, the steel material contains 0.5 to 1.2 wt. % carbon, 3.0 to 15.0 wt. % silicon and 0.5 to 4.5 wt. % nickel. Also, the steel material can contain small amounts of the following elements Mo, Mn, Al, Co Nb, Ti, V, Sn, Mg, B, Te Ta La, Bi, Zr, Sb, Ca, Sr, Cer, rare earth metals and nucleating agents such as NiMg, MiSiMg, FeMg and FeSIMg. due to the high Si content, a degree of saturation higher than 1.0 is attained, with the melting temperature of the steel material corresponding to normal cast iron. The steel material can be produced according to a conventional cast-iron technique and has a high resistance to wear and tear and a high structural strength (minimal distortion).
    Type: Grant
    Filed: May 7, 2007
    Date of Patent: August 14, 2012
    Assignee: Federal-Mogul Burscheid GmbH
    Inventor: Laszlo Pelsoeczy
  • Publication number: 20120090462
    Abstract: A steel piston ring and a steel cylinder liner are described which comprise as the main body a steel composition which has good nitridability. The steel composition consists of the following elements: 0-0.5 weight % B, 0.5-1.2 weight % C, 4.0-20.0 weight % Cr, 0-2.0 weight % Cu, 45.30-91.25 weight % Fe, 0.1-3.0 weight % Mn, 0.1-3.0 weight % Mo, 0-0.05 weight % Nb, 2.0-12.0 weight % Ni, 0-0.1 weight % P, 0-0.05 weight % Pb, 0-0.05 weight % S, 2.0-10.0 weight % Si, 0-0.05 weight % Sn, 0.05-2.0 weight % V, 0-0.2 weight % Ti and 0-0.5 weight % W. The steel piston ring and the steel cylinder liner can be manufactured in a casting process using the machinery and technology employed for the manufacture of cast iron parts.
    Type: Application
    Filed: March 25, 2010
    Publication date: April 19, 2012
    Applicant: FEDERAL-MOGUL BURSCHEID GMBH
    Inventor: Laszlo Pelsoeczy
  • Publication number: 20120091663
    Abstract: A steel material composition in particular for manufacturing piston rings and cylinder liners, which has a good nitriding capability, contains the following elements in the given proportion related to 100% by weight of the steel material composition: 0.5-1.2% by weight C, 4.0-20.0% by weight Cr, 45.30-91.25% by weight Fe, 0.1-3.0% by weight Mn, 0.1-3.0% by weight Mo, 2.0-12.0% by weight Ni, 2.0-10.0% by weight Si and 0.05-2.0% by weight V. It can be manufactured by manufacturing a melt of the starting materials and casting the melt into a prefabricated mould. Nitridation of the steel material composition which is obtained leads to a nitridized steel material composition which, by virtue of the manufacture with gravity casting, exceeds the properties of tempered cast iron with nodular graphite.
    Type: Application
    Filed: November 23, 2009
    Publication date: April 19, 2012
    Inventor: Laszlo Pelsoeczy
  • Publication number: 20120018051
    Abstract: A steel composition which has good nitridability, in particular for the manufacture of piston rings and cylinder liners, contains the following elements in the following quantities expressed with respect to 100 weight % of the steel composition: 0.5-1.5 weight % Al, 0.5-1.2 weight % C, 68.2-96.9 weight % Fe, 0.1-3.0 weight % Mn and 2.0-10.0 weight % Si. It can be manufactured by producing a melt of starting materials and casting the melt into a prepared mould. Nitriding the steel composition obtained results in a nitrided steel composition produced by gravity casting manufacturing with properties that surpass those of hardened and tempered spheroidal graphite.
    Type: Application
    Filed: November 23, 2009
    Publication date: January 26, 2012
    Applicant: FEDERAL-MOGUL BURSCHEID GMBH
    Inventor: Laszlo Pelsoeczy
  • Publication number: 20110311391
    Abstract: The invention relates to a steel material composition, in particular for producing piston rings and cylinder sleeves, containing the following elements in the given fractions in relation to 100% by weight of the steel material: 0.5-1.2% by weight C, 2.0-20.0% by weight Cr, 49.0-97.1% by weight Fe, 0.1-3.0% by weight Mn, 0.1-3.0% by weight Mo, 0.-7.0% by weight Nb, 2.0-10.0% by weight Si, 0-7.0% by weight Ti, 0.-7.0% by weight V and 0.-0.5% by weight W, the sum of the fractions of Nb, Ti, V and W being 2.0-7.0% by weight. Said composition can be produced by melting the starting materials and casting the melt in a pre-fabricated mould.
    Type: Application
    Filed: October 13, 2009
    Publication date: December 22, 2011
    Applicant: FEDERAL-MOGUL BURSCHEID GMBH
    Inventor: Laszlo Pelsoeczy
  • Publication number: 20110311390
    Abstract: The invention relates to a steel material composition, in particular for producing piston rings and cylinder sleeves, containing the following elements in the given fractions in relation to 100% by weight of the steel material: 0.5-1.2% by weight C, 6.0-20.0% by weight Cr, 45.0-88.5% by weight Fe, 3.0-15.0% by weight Mn and 2.0-10.0% by weight Si. Said composition can be produced by melting the starting materials and casting the melt in a pre-fabricated mould.
    Type: Application
    Filed: October 12, 2009
    Publication date: December 22, 2011
    Inventor: Laszlo Pelsoeczy