Turbomachine stage

US10415425B2 · kind B2 · utility

Assignee

• MTU Aero Engines AG · DE

Inventors

• Markus Schlemmer · Mainburg, DE
• Andreas Hartung · Munich, DE
• Karl-Hermann Richter · Markt Indersdorf, DE
• Herbert Hanrieder · Hohenkammer, DE

Key dates

• Filing date: Jan 17, 2017
• Grant date: Sep 17, 2019
• Expiry date: Oct 3, 2037

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T50/60
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a turbomachine including:a guide baffle, whose sv guide blades are situated on c guide blade carriers; andan adjacent moving baffle including sb moving blades;the guide baffle nv including impulse bodies which are situated in a cavity system of the guide baffle with movement play with respect to the impulse contact; the moving baffle nb including impulse bodies which are situated in a cavity system of the moving baffle with movement play with respect to the impulse contact; and quotient of sum of the masses of all impulse bodies of the guide baffle divided by the difference (sv−c) of the number sv of all guide blades minus the number c of all guide blade carriers amounts to at least 1.5 times quotient of sum of the masses of all impulse bodies of the moving baffle divided by the number sb of all moving blades