Global Patent Index - EP 2594741 A3

EP 2594741 A3 20170823 - Diffuser, in particular for an axial flow machine

Title (en)

Diffuser, in particular for an axial flow machine

Title (de)

Diffusor, insbesondere für eine Axialströmungsmaschine

Title (fr)

Diffuseur, en particulier pour une machine à flux axial

Publication

EP 2594741 A3 20170823 (EN)

Application

EP 12191495 A 20121106

Priority

DE 102011118735 A 20111117

Abstract (en)

[origin: EP2594741A2] The invention concerns a diffuser (20), in particular for an axial flow machine, preferably a stationary gas turbine, which diffuser (20) transforms from a ring channel (17) with a first cross sectional area into an outlet space (21) with a second, larger cross sectional area along a machine axis (31). Improved efficiency is achieved in that the transition is effected in several steps (22a-c) and that an annular passage (29) is provided through which a gas flow is able to escape and to flow along the guiding surface (28) in the form of a Coanda flow (30).

IPC 8 full level

F01D 9/02 (2006.01); F01D 1/02 (2006.01); F01D 9/04 (2006.01); F01D 25/16 (2006.01)

CPC (source: EP US)

F01D 1/02 (2013.01 - US); F01D 9/02 (2013.01 - EP US); F01D 9/04 (2013.01 - EP); F01D 25/162 (2013.01 - EP); F05D 2260/601 (2013.01 - EP)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 2594741 A2 20130522; EP 2594741 A3 20170823; CN 103122776 A 20130529; CN 103122776 B 20160210; DE 102011118735 A1 20130523; JP 2013108498 A 20130606; JP 2016180412 A 20161013; JP 6188885 B2 20170830; RU 2012148919 A 20140527; RU 2569015 C2 20151120; US 2013129498 A1 20130523

DOCDB simple family (application)

EP 12191495 A 20121106; CN 201210465817 A 20121116; DE 102011118735 A 20111117; JP 2012252515 A 20121116; JP 2016139281 A 20160714; RU 2012148919 A 20121116; US 201213678676 A 20121116