A diffuser apparatus in a turbomachine

A diffuser apparatus (200) in a turbomachine (10) comprising: a diffuser structure (220) having inner and outer walls (222, 224) defining a flow passageway (236) through which gases flow and diffuse such that kinetic energy is reduced and pressure is increased in the gases as they move through said...

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Bibliographic Details
Main Author BEECK, ALEXANDER R
Format Patent
LanguageEnglish
Polish
Published 30.06.2015
Subjects
BLASTING
ENGINE PLANTS IN GENERAL
FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOWOF GASES OR LIQUIDS
FLUID-PRESSURE ACTUATORS
HEATING
HYDRAULICS OR PNEUMATICS IN GENERAL
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES
STEAM ENGINES
WEAPONS
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Summary:A diffuser apparatus (200) in a turbomachine (10) comprising: a diffuser structure (220) having inner and outer walls (222, 224) defining a flow passageway (236) through which gases flow and diffuse such that kinetic energy is reduced and pressure is increased in the gases as they move through said passageway (236), said inner wall (222) having a first axial section (222A) and a stepped section (222B) located downstream from said first axial section (222A); stabilizing structure (250) associated with said stepped section (222B) to stabilize a separated gas recirculation zone (Z 3 ) located downstream from said stepped section (222B), wherein said stabilizing structure (250) comprises at least one Helmholtz damper (250A, 250B) associated with said stepped section (222B) to stabilize the separated gas recirculation zone (Z 3 ) located downstream from said stepped section (222B).
Bibliography:Application Number: PL20130183735T