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:
Aug. 13, 2019
Filed:
Aug. 18, 2017
Rolls-royce Deutschland Ltd & CO KG, Blankenfelde-Mahlow, DE;
Volker Guemmer, Allershausen, DE;
ROLLS-ROYCE DEUTSCHLAND LTD & CO KG, Blankenfelde-Mahlow, DE;
Abstract
A fluid flow machine, includes a main flow path formed by a hub and a housing, an arrangement of rotating blades in the main flow path to supply energy to the fluid, forming a rotor assembly group, an arrangement of resting blades arranged adjacent to the rotor in the main flow path, forming a stator assembly group, wherein respectively one rotor assembly group and one stator assembly group adjacent thereto form a stage of the fluid flow machine. In at least one stage, the averaged blade profile angles β, βof the rotor assembly group, the averaged blade profile angles β, βof the stator assembly group, as well as the course of the cross-sectional areas of the main flow path in a downstream direction are selected such that they fulfill a certain relationship to increase the realizable level of efficient work to be supplied.