Patents by Inventor Rudolf Hauleitner

Rudolf Hauleitner 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: 10753396
    Abstract: A Hybrid rolling bearing includes an inner raceway and an outer raceway and a plurality of rolling elements arranged therebetween. The outer raceway and the inner raceway are made from bearing steel, having a first surface RMS roughness Rq1. The rolling elements are made from a ceramic material and have second surface RMS roughnesses Rq2,i. At least one of the rolling elements has an increased surface RMS roughness Rq2,N, which is significantly higher than the RMS roughnesses Rq2,i, of the remaining rolling elements. The hybrid rolling bearing can be installed within a refrigerant compressor.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: August 25, 2020
    Assignee: Aktiebolaget SKF
    Inventors: Rudolf Hauleitner, Guillermo Enrique Morales Espejel, Antonio Gabelli, Aidan Kerrigan, Charlotte Vieillard
  • Publication number: 20200263733
    Abstract: A pair of hybrid ball bearings have stainless steel rings and ceramic balls and are configured such that when the first inner ring and the first outer ring are in contact with the first plurality of ceramic balls under zero measuring load and zero mounting load and the second inner ring and the second outer ring are in contact with the second plurality of ceramic balls under zero measuring load and zero mounting load a certain gap exists between either the inner rings or the outer rings. The gap is based on the diameter of the inner ring or on the pitch diameter of the balls and on whether the bearings have an X configuration or an O configuration.
    Type: Application
    Filed: May 6, 2020
    Publication date: August 20, 2020
    Inventors: Hans Wallin, Rudolf Hauleitner
  • Publication number: 20200166249
    Abstract: A cooling system and methods of employing the same includes a refrigerant cycle for cycling refrigerant from a compressor to a condenser and from the condenser an evaporator unit, and a lubrication cycle having at least one lubricating refrigerant supply line for providing refrigerant as lubricant to a bearing assembly.
    Type: Application
    Filed: November 15, 2019
    Publication date: May 28, 2020
    Inventors: Rudolf Hauleitner, Christine Matta, Guillermo Enrique Morales Espejel, Hans Wallin
  • Publication number: 20200166252
    Abstract: Disclosed is a cooling system comprising a refrigerant cycle for cycling refrigerant from at least a compressor unit for com-pressing gaseous refrigerant to a condenser unit for condensing gaseous refrigerant to liquid refrigerant, from the condenser unit to an evaporator unit for evaporating the liquid refrigerant to gaseous refrigerant, and from the evaporating unit back to the compressor unit, and a lubrication cycle having at least one lubricating refrigerant supply line for providing refrigerant as lubricant to a bearing assembly, wherein the at least one lubricating refrigerant supply line branches off from the refrigerant cycle at the condenser unit for providing refrigerant to the bearing assembly, and re-unites with the refrigerant cycle at the evaporator unit, for feeding back refrigerant from the bearing assembly to the refrigerant cycle.
    Type: Application
    Filed: November 26, 2019
    Publication date: May 28, 2020
    Inventors: Rudolf Hauleitner, Christine Matta, Guillermo Enrique Morales Espejel, Hans Wallin
  • Publication number: 20200166251
    Abstract: A cooling system and methods of employing the same includes a refrigerant cycle for cycling refrigerant from a compressor to a condenser and from the condenser an evaporator, and a lubrication cycle having at least one lubricating refrigerant supply line for providing refrigerant as lubricant to a bearing assembly. The lubricating refrigerant supply line including one or more filters, such as particle filters, acid filters, or desiccant filters.
    Type: Application
    Filed: November 21, 2019
    Publication date: May 28, 2020
    Inventors: Rudolf Hauleitner, Christine Matta, Guillermo Enrique Morales Espejel, Hans Wallin
  • Patent number: 10598217
    Abstract: An angular contact ball bearing includes an outer ring having an outer diameter D and a first rolling surface and an inner ring having an inner diameter d and a second rolling surface, and no more than one row of balls between the first rolling surface and the second rolling surface, each of the balls having a diameter Dw. The diameter Dw of the balls, the outer diameter D of the outer ring, and the inner diameter d of the inner ring satisfy the relationship: D w > 0.7 * ( D - d ) 2 .
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: March 24, 2020
    Assignee: Aktiebolaget SKF
    Inventors: Thomas Forster, Rudolf Hauleitner
  • Patent number: 10544828
    Abstract: Two hybrid ball bearings and a compressor bearing arrangement with two hybrid ball bearings for a rotatable support of a rotor of the compressor versus a stator of the compressor. The two hybrid ball bearings are arranged face-to-face or back-to-back, are designed with an optimal axial clearance depending on the inner diameter of a ring-shaped inner raceway element one of the hybrid ball bearings respectively a pitch diameter of one of the two hybrid ball bearings for a long bearing life in connection with an optimal compressor operating performance.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: January 28, 2020
    Assignee: AKTIEBOLAGET SKF
    Inventors: Rudolf Hauleitner, Hans Wallin
  • Patent number: 10527094
    Abstract: A Hybrid ball bearing including an outer raceway, an inner raceway, and a plurality of balls arranged between the inner raceway and the outer raceway. The outer raceway and the inner raceway are made from bearing steel and have a first surface RMS roughness Rq1. At least one ball of the plurality of balls is made from a ceramic material and has a second surface RMS roughness Rq2. In a mint condition, the roughness of the raceways Rq1 is 2 to 5 times higher than the roughness Rq2 of the at least one ball, as well as a refrigerant compressor comprising such a hybrid ball bearing.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: January 7, 2020
    Assignee: AKTIEBOLAGET SKF
    Inventors: Guillermo Enrique Morales Espejel, Rudolf Hauleitner, Aidan Kerrigan
  • Patent number: 10508684
    Abstract: An angular contact ball bearing includes an outer ring having an outer diameter D and a first rolling surface and an inner ring having an inner diameter d and a second rolling surface, and no more than one row of balls between the first rolling surface and the second rolling surface, each of the balls having a diameter Dw. The diameter Dw of the balls, the outer diameter D of the outer ring, and the inner diameter d of the inner ring satisfy the relationship: 2 ? D w D - d > 0.7 .
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: December 17, 2019
    Assignee: AKTIEBOLAGET SKF
    Inventors: Thomas Forster, Rudolf Hauleitner
  • Publication number: 20190345977
    Abstract: An angular contact ball bearing includes an outer ring having an outer diameter D and a first rolling surface and an inner ring having an inner diameter d and a second rolling surface, and no more than one row of balls between the first rolling surface and the second rolling surface, each of the balls having a diameter Dw. The diameter Dw of the balls, the outer diameter D of the outer ring, and the inner diameter d of the inner ring satisfy the relationship: D w > 0.
    Type: Application
    Filed: July 26, 2019
    Publication date: November 14, 2019
    Inventors: Thomas Forster, Rudolf Hauleitner
  • Publication number: 20190331124
    Abstract: Two hybrid ball bearings and a compressor bearing arrangement with two hybrid ball bearings for a rotatable support of a rotor of the compressor versus a stator of the compressor. The two hybrid ball bearings are arranged face-to-face or back-to-back, are configured with an optimal axial clearance depending on the inner diameter of a ring-shaped inner raceway element one of the hybrid ball bearings respectively a pitch diameter of one of the two hybrid ball bearings for a long bearing life in connection with an optimal compressor operating performance.
    Type: Application
    Filed: April 25, 2018
    Publication date: October 31, 2019
    Inventors: Hans Wallin, Rudolf Hauleitner
  • Publication number: 20190331167
    Abstract: Two hybrid ball bearings and a compressor bearing arrangement with two hybrid ball bearings for a rotatable support of a rotor of the compressor versus a stator of the compressor. The two hybrid ball bearings are arranged face-to-face or back-to-back, are configured with an optimal axial clearance depending on the inner diameter of a ring-shaped inner raceway element one of the hybrid ball bearings respectively a pitch diameter of one of the two hybrid ball bearings for a long bearing life in connection with an optimal compressor operating performance.
    Type: Application
    Filed: April 25, 2018
    Publication date: October 31, 2019
    Inventors: Hans Wallin, Rudolf Hauleitner
  • Patent number: 10337773
    Abstract: A cooling system includes a refrigerant compressor and a first operating medium, which provides a mixture of refrigerant and lubrication oil. An oil separator reduces the percentage of the refrigerant in the operating medium to a value between 15% by weight and 50% by weight.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: July 2, 2019
    Assignee: Aktiebolaget SKF
    Inventors: Rudolf Hauleitner, Mario Kammerhuber, Guillermo Morales Espejel, Hans Wallin
  • Publication number: 20190186541
    Abstract: A Hybrid rolling bearing includes an inner raceway and an outer raceway and a plurality of rolling elements arranged therebetween. The outer raceway and the inner raceway are made from bearing steel, having a first surface RMS roughness Rq1. The rolling elements are made from a ceramic material and have second surface RMS roughnesses Rq2,i. At least one of the rolling elements has an increased surface RMS roughness Rq2,N, which is significantly higher than the RMS roughnesses Rq2,i, of the remaining rolling elements. The hybrid rolling bearing can be installed within a refrigerant compressor.
    Type: Application
    Filed: September 5, 2018
    Publication date: June 20, 2019
    Inventors: Rudolf Hauleitner, Guillermo Enrique Morales Espejel, Antonio Gabelli, Aidan Kerrigan, Charlotte Vieillard
  • Publication number: 20190186536
    Abstract: Two hybrid ball bearings and a compressor bearing arrangement with two hybrid ball bearings for a rotatable support of a rotor of the compressor versus a stator of the compressor. The two hybrid ball bearings are arranged face-to-face or back-to-back, are designed with an optimal axial clearance depending on the inner diameter of a ring-shaped inner raceway element one of the hybrid ball bearings respectively a pitch diameter of one of the two hybrid ball bearings for a long bearing life in connection with an optimal compressor operating performance.
    Type: Application
    Filed: December 20, 2017
    Publication date: June 20, 2019
    Inventors: Rudolf Hauleitner, Hans Wallin
  • Publication number: 20190186540
    Abstract: A Hybrid ball bearing including an outer raceway, an inner raceway, and a plurality of balls arranged between the inner raceway and the outer raceway. The outer raceway and the inner raceway are made from bearing steel and have a first surface RMS roughness Rq1. At least one ball of the plurality of balls is made from a ceramic material and has a second surface RMS roughness Rq2. In a mint condition, the roughness of the raceways Rq1 is 2 to 5 times higher than the roughness Rq2 of the at least one ball, as well as a refrigerant compressor comprising such a hybrid ball bearing.
    Type: Application
    Filed: September 5, 2018
    Publication date: June 20, 2019
    Inventors: Guillermo Enrique Morales Espejel, Rudolf Hauleitner, Aidan Kerrigan
  • Patent number: 10309697
    Abstract: A cooling system includes a refrigerant compressor and a first operating medium, which provides a mixture of refrigerant and lubrication oil. An oil separator reduces the percentage of the refrigerant in the operating medium to a value between 15% by weight and 60% by weight.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: June 4, 2019
    Assignee: Aktiebolaget SKF
    Inventors: Rudolf Hauleitner, Mario Kammerhuber, Guillermo Morales Espejel, Hans Wallin
  • Patent number: 10295231
    Abstract: A cooling system includes a refrigerant compressor and a first operating medium, which provides a mixture of refrigerant and lubrication oil. An oil separator reduces the percentage of the refrigerant in the operating medium to a value between 25% by weight and 80% by weight.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: May 21, 2019
    Assignee: Aktiebolaget SKF
    Inventors: Rudolf Hauleitner, Mario Kammerhuber, Guillermo Morales Espejel, Hans Wallin
  • Patent number: 10295232
    Abstract: A cooling system includes a refrigerant compressor and a first operating medium, which includes a mixture of refrigerant and lubrication oil. An oil separator reduces the percentage of the refrigerant in the operating medium so that a second lubrication oil enriched operating medium is provided by the oil separator, the provided second operating medium having at least in a second operating state a viscosity ratio of ?>1.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: May 21, 2019
    Assignee: Aktiebolaget SKF
    Inventors: Rudolf Hauleitner, Mario Kammerhuber, Guillermo Morales Espejel, Hans Wallin
  • Patent number: 10280973
    Abstract: A hybrid roller bearing having an inner raceway and an outer raceway and a plurality of rollers arranged therebetween. The inner raceway and the outer raceway are made from bearing steel and have a first surface RMS roughness Rq1. At least one roller is made from a ceramic material and has at least at the roller raceway a second surface RMS roughness Rq2. The roughness of the raceways Rq1 is 1.2 to 4 times higher than the roughness Rq2 of the at least one roller, as well as a refrigerant compressor with such a hybrid roller bearing.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: May 7, 2019
    Assignee: Aktiebolaget SKF
    Inventors: Rudolf Hauleitner, Guillermo Enrique Morales Espejel, Aidan Kerrigan, Hans Wallin