Patents by Inventor Matthew Purdey

Matthew Purdey 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: 11892006
    Abstract: A seal system for a bearing chamber of a turbomachine includes a baffle element encircling the axis of the machine. The baffle element is formed with front surface including a plurality of gutter surfaces which are angularly spaced about the rotational axis. The seal system can thus be mounted in any one of a plurality of orientations with respect to the direction of gravity, such that in any of the orientations one of the gutter surfaces is directed downwardly.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: February 6, 2024
    Assignee: CUMMINS LIMITED
    Inventors: Yao Lu, Chris Witkowski, Matthew Purdey
  • Publication number: 20220333609
    Abstract: A seal system for a bearing chamber of a turbomachine includes a baffle element encircling the axis of the machine. The baffle element is formed with front surface including a plurality of gutter surfaces which are angularly spaced about the rotational axis. The seal system can thus be mounted in any one of a plurality of orientations with respect to the direction of gravity, such that in any of the orientations one of the gutter surfaces is directed downwardly.
    Type: Application
    Filed: August 28, 2019
    Publication date: October 20, 2022
    Applicant: Cummins Limited
    Inventors: Yao Lu, Chris Witkowski, Matthew Purdey
  • Publication number: 20220065133
    Abstract: A seal system for a bearing chamber (22) of a turbomachine includes the baffle element (70) encircling the axis (25) of the machine. The baffle element is formed with front surface including both a recess (73) which defines a circumferentially-extending oil-receiving channel (74), and an oil-deflecting surface (78) on a gutter (77). The channel decreases in cross-sectional area close to the oil-deflecting surface, and a circular line which is within the channel distant from the gutter, intersects with the oil-deflection surface. This forces the oil to change direction at the gutter, and urges the oil radially outward. Thus, a high rotational velocity of the body of oil may be maintained, whilst improving the drainage efficiency of the seal system at the gutter.
    Type: Application
    Filed: December 23, 2019
    Publication date: March 3, 2022
    Inventor: Matthew Purdey