Patents by Inventor John E. T. RIMMER

John E. T. RIMMER 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).

  • Array of effusion holes in a dual wall combustor
    Patent number: 10408452
    Abstract: In an embodiment of the invention, a dual-wall casing for a combustor comprises an outer wall and an inner wall defining a channel therebetween. The walls are fastened together by a bolt which extends from the inner wall and across the channel. In use, the inner wall is exposed to combustion products. Cooling is provided by a primary inlet hole extending through the outer wall and arranged upstream (with respect to the direction of flow of coolant in the channel) of the bolt and an array of effusion holes extending through the inner wall and positioned with their inlet in line of sight of the primary inlet hole. The primary inlet hole is sized with respect to the array of effusion holes such that it has a flow area which causes locally negligible flow restriction.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: September 10, 2019
    Assignee: ROLLS-ROYCE plc
    Inventors: John E. T. Rimmer, Nicholas M Brown
  • COMBUSTOR FOR A GAS TURBINE ENGINE
    Publication number: 20170108219
    Abstract: In an embodiment of the invention, a dual-wall casing for a combustor comprises an outer wall and an inner wall defining a channel therebetween. The walls are fastened together by a bolt which extends from the inner wall and across the channel. In use, the inner wall is exposed to combustion products. Cooling is provided by a primary inlet hole extending through the outer wall and arranged upstream (with respect to the direction of flow of coolant in the channel) of the bolt and an array of effusion holes extending through the inner wall and positioned with their inlet in line of sight of the primary inlet hole. The primary inlet hole is sized with respect to the array of effusion holes such that it has a flow area which causes locally negligible flow restriction.
    Type: Application
    Filed: September 22, 2016
    Publication date: April 20, 2017
    Applicant: ROLLS-ROYCE plc
    Inventors: John E. T. RIMMER, Nicholas M. BROWN