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:
Nov. 12, 2019
Filed:
Aug. 29, 2014
Siemens Aktiengesellschaft, München, DE;
John A. Orosa, Palm Beach Gardens, FL (US);
SIEMENS AKTIENGESELLSCHAFT, München, DE;
Abstract
A controlled convergence compressor flowpath () configured to better distribute the limited flowpath () convergence within compressors () in turbine engines () is disclosed. The compressor () may have a flowpath () defined by circumferentially extending inner and outer boundaries () that having portions in which the rate of convergence changes to better distribute fluid flow therethrough. The rate of convergence may increase at surfaces () adjacent to roots () of airfoils () and decrease near airfoil tips () and in the axial gaps () between airfoil rows (). In at least one embodiment, the compressor flowpath () between leading and trailing edges () of a first compressor blade () may increase convergence moving downstream to a trailing edge () of the first compressor blade () due to increased convergence of the inner compressor surface (). The compressor flowpath () between leading and trailing edges () of a first compressor vane () immediately downstream from the first compressor blade () may increase convergence moving downstream due to increased convergence of the outer compressor surface ().