Patents by Inventor Alexander C. Bryans

Alexander C. Bryans 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).

  • Method of compressing a fluid flow in a multi stage centrifugal impeller
    Patent number: 4653976
    Abstract: A multistage centrifugal impeller in which each blade row is individually matched to optimum efficiency characteristics in a manner which minimizes blade lean. Each blade row is composed of twisted blades which substantially equalize working fluid diffusion from blade root to blade tip while restraining blade lean to less than 15.degree..
    Type: Grant
    Filed: October 15, 1984
    Date of Patent: March 31, 1987
    Assignee: General Electric Company
    Inventors: Lawrence W. Blair, Alexander C. Bryans
  • Diffuser for a centrifugal compressor
    Patent number: 4576550
    Abstract: The diffuser of the present invention comprises a plurality of passages which intersect at radially inner ends thereof to define a quasi-vaneless annular inlet for receiving accelerated gases from an impeller of a centrifugal compressor. Each of the passages includes a throat portion having a quadrilateral cross section, including two subtantially parallel linear sidewalls and two substantially arcuate opposing sidewalls, effective for reducing the length of and thereby pressure losses from the annular inlet. The linearity and regularity of the diffuser passages enables the diffuser to be manufactured to close tolerances by electric discharge milling an annular plate utilizing a single tool. This assures uniformity and consistency between diffusers.
    Type: Grant
    Filed: December 2, 1983
    Date of Patent: March 18, 1986
    Assignee: General Electric Company
    Inventor: Alexander C. Bryans
  • Multi stage centrifugal impeller
    Patent number: 4502837
    Abstract: A multistage centrifugal impeller in which each blade row is individually matched to optimum efficiency characteristics in a manner which minimizes blade lean. Each blade row is composed of twisted blades which substantially equalize working fluid diffusion from blade root to blade tip while restraining blade lean to less than 15.degree..
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: March 5, 1985
    Assignee: General Electric Company
    Inventors: Lawrence W. Blair, Alexander C. Bryans