The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 07, 1977
Filed:
Dec. 10, 1975
Alexander Connor Bryans, Reading, MA (US);
General Electric Company, Lynn, MA (US);
Abstract
A diffuser provides a transition from a centrifugal compressor to the annular combustion chamber of a gas turbine engine. The diffuser comprises a plurality of linear passages which gradually merge radially outward from a circular cross-section to an outlet having a near rectangular cross-section defined by two flat opposing parallel sides and two opposing curved sides. The two opposing curved sides produce a razor sharp trailing edge which maximizes the diffuser efficiency. The linearity of the diffuser passage allows the diffuser to be manufactured to close tolerances by electric discharge milling an annular plate in a manner which assures uniformity and consistency between diffusers. The near rectangular shape of the outlet of the diffuser passages optimizes flow distribution to the annular combustion chamber. A transition region and deswirler section downstream of the near rectangular outlet may be provided to match the diffuser flow path to the combustor geometry.