Patents Assigned to Dresser-Rand SAS
  • Publication number: 20230184334
    Abstract: A method for assembling a seal cartridge and a seal cartridge, wherein the seal cartridge includes a set of sealing components configured for being removably assembled to each other so as to form the seal cartridge and wherein at least one of said sealing components is configured for being secured to another sealing component and/or to a shaft casing by a tenon and mortise joint system.
    Type: Application
    Filed: April 27, 2021
    Publication date: June 15, 2023
    Applicant: Dresser-Rand SAS
    Inventor: Giampiero Marinelli
  • Publication number: 20230184335
    Abstract: A pin locking device for assembling a first and a second sealing component of a seal cartridge which includes a pin body with a longitudinal bore, wherein an inner wall of the bore includes fixing device that cooperates with an extraction tool. The pin body has two parts arranged longitudinally one after the other. A first part is configured for fitting a pin cavity of the first sealing component and a second part is configured for fitting a locking cavity of the second sealing component. A spring configured for moving the pin body from a withdrawn position, where the pin body is entirely located within a pin cavity of the first sealing component, towards a locked position wherein a second part of the pin body is located and maintained within a locking cavity of the second sealing component while a first part remains located within the pin cavity.
    Type: Application
    Filed: April 27, 2021
    Publication date: June 15, 2023
    Applicant: Dresser-Rand SAS
    Inventor: Giampiero Marinelli
  • Publication number: 20230095573
    Abstract: A coupling guard for a rotor, which includes a housing for enclosing the rotor in an inner space of the housing, the housing extending longitudinally along a length of the rotor; a ventilation system for creating a flow of gas in the inner space from a gas inlet to a gas outlet that exhausts outside. The gas inlet includes a pipe extending along a pipe longitudinal axis from outside to inside the housing. The pipe includes a first opening located outside the housing and a second opening located inside the housing in the inner space. The pipe has the second opening close to the rotor when the housing encloses the latter. The second opening has a curved edge wherein a projection of the curved edge onto a plane extending parallel to the longitudinal axis of the pipe and parallel to the axis of longitudinal extension is a segment of curve.
    Type: Application
    Filed: February 22, 2021
    Publication date: March 30, 2023
    Applicant: Dresser-Rand SAS
    Inventors: Axel Bouzin, Frededric Marteau, Yann Peignet
  • Patent number: 11572952
    Abstract: A shaft sealing arrangement includes a first seal and a second seal, wherein the first seal is designed in the form of a lip seal and the second seal is designed in the form of a mechanical seal. When the shaft is at a standstill, the lip seal performs the sealing action and, when the shaft is rotating, the mechanical seal performs the sealing action.
    Type: Grant
    Filed: May 29, 2021
    Date of Patent: February 7, 2023
    Assignee: Dresser-Rand SAS
    Inventor: Olivier Lebigre
  • Publication number: 20220381349
    Abstract: A shaft sealing arrangement includes a first seal and a second seal, wherein the first seal is designed in the form of a lip seal and the second seal is designed in the form of a mechanical seal. When the shaft is at a standstill, the lip seal performs the sealing action and, when the shaft is rotating, the mechanical seal performs the sealing action.
    Type: Application
    Filed: May 29, 2021
    Publication date: December 1, 2022
    Applicant: Dresser-Rand SAS
    Inventor: Olivier Lebigre