Patents Assigned to Rotoliptic Technologies Incorporated
  • Patent number: 11988208
    Abstract: Sealing in rotary positive displacement machines based on trochoidal geometry that comprise a helical rotor that undergoes planetary motion within a helical stator is described. Seals can be mounted on the rotor, the stator, or both. The rotor can have a hypotrochoidal cross-section, with the corresponding stator cavity profile being the outer envelope of the rotor as it undergoes planetary motion, or the stator cavity can have an epitrochoidal cross-section with the corresponding rotor profile being the inner envelope of the trochoid as it undergoes planetary motion. In some embodiments, the geometry is offset in a manner that provides advantages with respect to sealing in the rotary machine. In multi-stage embodiments, the rotor-stator geometry remains substantially constant or varies along the axis of the rotary machine.
    Type: Grant
    Filed: October 7, 2022
    Date of Patent: May 21, 2024
    Assignee: Rotoliptic Technologies Incorporated
    Inventors: Greg John Montie, Bryan Allen Callaway
  • Patent number: 11815094
    Abstract: Rotary positive displacement machines based on trochoidal geometry that includes a helical rotor that undergoes planetary motion relative to a helical stator are described. The rotor can have a hypotrochoidal-based cross-sectional shape, with the corresponding stator cavity cross-sectional shape being the outer envelope of the rotor cross-sectional shape as it undergoes planetary motion, or the stator cavity can have an epitrochoidal-based cross-sectional shape with the corresponding rotor cross-sectional shape being the inner envelope of the stator cross-sectional shape as it undergoes planetary motion. Such machines can be configured so that the stator axis is spaced from the rotor axis, the rotor is configured to spin about its axis and the stator is configured to spin about its axis, and/or the rotor and the stator are held at a fixed eccentricity so that the rotor undergoes planetary motion relative to the stator, but does not orbit.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: November 14, 2023
    Assignee: Rotoliptic Technologies Incorporated
    Inventors: Greg John Montie, Peter Thomas Christopher Suke, Adrian James Corless, Bryan Allen Callaway
  • Patent number: 11802558
    Abstract: Rotary positive displacement machines based on trochoidal geometry and including a helical rotor that undergoes planetary motion relative to a helical stator can be designed and configured so that the axial load or rotor pressure force is positive, negative, or neutral. In some embodiments, a change in axial load, caused by a change in differential pressure across the machine, can be used to trigger a change in a mechanical configuration of the machine.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: October 31, 2023
    Assignee: Rotoliptic Technologies Incorporated
    Inventors: Greg John Montie, Peter Thomas Christopher Suke, Bryan Allen Callaway
  • Patent number: 11608827
    Abstract: Rotary positive displacement machines based on trochoidal geometry, that comprise a helical rotor that undergoes planetary motion within a helical stator are described. The rotor can have a hypotrochoidal cross-section, with the corresponding stator cavity profile being the outer envelope of the rotor as it undergoes planetary motion, or the stator cavity can have an epitrochoidal cross-section with the corresponding rotor profile being the inner envelope of the trochoid as it undergoes planetary motion. In some embodiments, the geometry is offset in a manner that provides structural and/or operational advantages in the rotary machine.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: March 21, 2023
    Assignee: Rotoliptic Technologies Incorporated
    Inventors: Greg John Montie, Bryan Allen Callaway
  • Patent number: 11506056
    Abstract: A rotary machine, for directing a quantity of fluid from an inlet to an outlet, comprises one or more elliptical or near-elliptical rotors having planetary rotation within a housing. The interior cavity of the housing comprises an inverse apex region that is in contact with the rotor during its rotation. In various embodiments the rotor and housing can be symmetric or asymmetric in cross-section. Features are described that can improve the operation of the machine for various end-use applications. Such features include cut-outs that are fluidly connected to the inlet or outlet ports of the machine, mechanisms for reducing variation in output flow rate from the rotary machine, linings for the interior cavity of the housing, pressure relief mechanisms, dynamic apex seals and other sealing mechanisms.
    Type: Grant
    Filed: October 12, 2020
    Date of Patent: November 22, 2022
    Assignee: Rotoliptic Technologies Incorporated
    Inventors: Greg John Montie, Curtis Warren Mullen
  • Patent number: 11499550
    Abstract: Sealing in rotary positive displacement machines based on trochoidal geometry that comprise a helical rotor that undergoes planetary motion within a helical stator is described. Seals can be mounted on the rotor, the stator, or both. The rotor can have a hypotrochoidal cross-section, with the corresponding stator cavity profile being the outer envelope of the rotor as it undergoes planetary motion, or the stator cavity can have an epitrochoidal cross-section with the corresponding rotor profile being the inner envelope of the trochoid as it undergoes planetary motion. In some embodiments, the geometry is offset in a manner that provides advantages with respect to sealing in the rotary machine. In multi-stage embodiments, the rotor-stator geometry remains substantially constant or varies along the axis of the rotary machine.
    Type: Grant
    Filed: October 11, 2020
    Date of Patent: November 15, 2022
    Assignee: Rotoliptic Technologies Incorporated
    Inventors: Greg John Montie, Bryan Allen Callaway
  • Patent number: 11306720
    Abstract: Rotary positive displacement machines with trochoidal geometry that comprise a helical rotor that undergoes planetary motion within a helical stator are described. The rotor can have a hypotrochoidal cross-section, with the corresponding stator cavity profile being the outer envelope of the rotor as it undergoes planetary motion, or the stator cavity can have an epitrochoidal cross-section with the corresponding rotor profile being the inner envelope of the trochoid as it undergoes planetary motion. In some multi-stage embodiments, the rotor-stator geometry remains substantially constant along the axis of the rotary machine. In other multi-stage embodiments, the rotor-stator geometry varies along the axis of the rotary machine.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: April 19, 2022
    Assignee: Rotoliptic Technologies Incorporated
    Inventors: Greg John Montie, Bryan Allen Callaway
  • Patent number: 10844720
    Abstract: A rotary machine, for directing a quantity of fluid from an inlet to an outlet, comprises one or more elliptical or near-elliptical rotors having planetary rotation within a housing. The interior cavity of the housing comprises an inverse apex region that is in contact with the rotor during its rotation. In various embodiments the rotor and housing can be symmetric or asymmetric in cross-section. Features are described that can improve the operation of the machine for various end-use applications. Such features include cut-outs that are fluidly connected to the inlet or outlet ports of the machine, mechanisms for reducing variation in output flow rate from the rotary machine, linings for the interior cavity of the housing, pressure relief mechanisms, dynamic apex seals and other sealing mechanisms.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: November 24, 2020
    Assignee: Rotoliptic Technologies Incorporated
    Inventor: Greg John Montie
  • Patent number: 10844859
    Abstract: Sealing in rotary positive displacement machines based on trochoidal geometry that comprise a helical rotor that undergoes planetary motion within a helical stator is described. Seals can be mounted on the rotor, the stator, or both. The rotor can have a hypotrochoidal cross-section, with the corresponding stator cavity profile being the outer envelope of the rotor as it undergoes planetary motion, or the stator cavity can have an epitrochoidal cross-section with the corresponding rotor profile being the inner envelope of the trochoid as it undergoes planetary motion. In some embodiments, the geometry is offset in a manner that provides advantages with respect to sealing in the rotary machine. In multi-stage embodiments, the rotor-stator geometry remains substantially constant or varies along the axis of the rotary machine.
    Type: Grant
    Filed: February 29, 2020
    Date of Patent: November 24, 2020
    Assignee: Rotoliptic Technologies Incorporated
    Inventors: Greg John Montie, Bryan Allen Callaway
  • Patent number: 10837444
    Abstract: Rotary positive displacement machines based on trochoidal geometry, that comprise a helical rotor that undergoes planetary motion within a helical stator are described. The rotor can have a hypotrochoidal cross-section, with the corresponding stator cavity profile being the outer envelope of the rotor as it undergoes planetary motion, or the stator cavity can have an epitrochoidal cross-section with the corresponding rotor profile being the inner envelope of the trochoid as it undergoes planetary motion. In some embodiments, the geometry is offset in a manner that provides structural and/or operational advantages in the rotary machine.
    Type: Grant
    Filed: February 29, 2020
    Date of Patent: November 17, 2020
    Assignee: Rotoliptic Technologies Incorporated
    Inventors: Greg John Montie, Bryan Allen Callaway
  • Patent number: 10087758
    Abstract: A rotary machine, for directing a quantity of fluid from an inlet to an outlet, comprises one or more elliptical or near-elliptical rotors having planetary rotation within a housing. The interior cavity of the housing comprises an inverse apex region that is in contact with the rotor during its rotation. In various embodiments the rotor and housing can be symmetric or asymmetric in cross-section. Features are described that can improve the operation of the machine for various end-use applications. Such features include cut-outs that are fluidly connected to the inlet or outlet ports of the machine, mechanisms for reducing variation in output flow rate from the rotary machine, linings for the interior cavity of the housing, pressure relief mechanisms, dynamic apex seals and other sealing mechanisms.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: October 2, 2018
    Assignee: Rotoliptic Technologies Incorporated
    Inventors: Greg John Montie, Darren Alan Esau, Jess Donald Lloyd Orton, Curtis Warren Mullen