EP 1425504 A2 20040609 - Mixer tube for a turbofan engine
Title (en)
Mixer tube for a turbofan engine
Title (de)
Mischrohr eines Zweikreis-Strahltriebwerks
Title (fr)
Tube mélangeur pour turboréacteur à double flux
Publication
Application
Priority
- DE 0203157 W 20020829
- DE 10145489 A 20010914
Abstract (en)
[origin: WO03025378A2] The invention relates to a device for mixing two flows of fluid (16, 18), which are initially guided separate from one another, in a two-circuit reaction engine. To this end, a mixing tube (10) is provided which encircles a hot central stream (16), and a cold bypass flow (18) flows along the outer shaped lateral surface (12) of said mixing tube. The mixing tube (10) is provided in the form of a truncated cone that narrows in the direction of flow (S) and has openings (20) at the downstream end in the peripheral direction of the mixing tube surface (12). Said openings are located in a cross-sectional plane that is perpendicular to the longitudinal axis (14) of the mixing tube (10), and the hot central stream (16) flowing through the mixing tube (10) penetrates, via the openings, the cold bypass stream (18) flowing around the mixing tube surface (12). The openings (20) have elliptical passage surfaces (22) with a major axis (24) and a minor axis (26), whereby the major axis (24) of the passage surfaces (22) on the lateral surface (12) of the mixing tube (10) run in the direction of flow (S) of the fluids (16, 18), and the minor axis (26) runs perpendicular thereto.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
F02K 1/40 (2013.01 - EP US); F05D 2250/24 (2013.01 - EP US); F05D 2250/712 (2013.01 - EP US); F05D 2260/96 (2013.01 - EP US); Y02T 50/60 (2013.01 - EP US)
Citation (search report)
See references of WO 03025378A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
DOCDB simple family (publication)
WO 03025378 A2 20030327; WO 03025378 A3 20030530; CA 2460549 A1 20030327; CA 2460549 C 20110104; DE 10145489 A1 20030410; DE 10145489 B4 20081106; EP 1425504 A2 20040609; JP 2005502819 A 20050127; JP 4148893 B2 20080910; US 2005022502 A1 20050203; US 7299635 B2 20071127
DOCDB simple family (application)
DE 0203157 W 20020829; CA 2460549 A 20020829; DE 10145489 A 20010914; EP 02769890 A 20020829; JP 2003528979 A 20020829; US 48959904 A 20040922