EP 2180143 A1 20100428 - Gas turbine nozzle arrangement and gas turbine
Title (en)
Gas turbine nozzle arrangement and gas turbine
Title (de)
Gasturbinenleitschaufelnanordnung und Gasturbine
Title (fr)
Agencement de distributeur de turbine à gaz et turbine à gaz
Publication
Application
Priority
EP 08018594 A 20081023
Abstract (en)
A gas turbine nozzle arrangement has an axial direction (A) defining a flow direction of hot combustion gas there through and a radial direction (R). The gas turbine nozzle arrangement comprises: an outer support (37), a carrier ring (39) comprising a carrier ring section (45) extending radially outwards and having a radially outer surface (47), and nozzle segments each having an outer platform (25), an inner platform (27) and at least one guide vane (17) extending between the outer platform (25) and the inner platform (27). The outer platforms (25) of the nozzle segments form an outer flow channel wall for the hot combustion gas. The inner platforms (27) of the nozzle segments form an inner flow channel wall for the hot combustion gas and each comprise a downstream end (28) with respect to the flow direction, a radially inner surface (43) and a rail (49) extending radially inwards from the radially inner surface (43). While the outer platforms (25) each are connected to the outer support (37) the inner platforms (27) each are connected to the carrier ring (39) by means of the rails (49) and the ring section (45) such that the rails (49) overlap the carrier ring section (45). At least one flow channel (55) for a cooling fluid is formed between the rails (49) and the ring section (45). In addition, at least one seal strip (41) is present between the radially outer surface (47) of the carrier ring section (45) and inner surface (43) of the inner platforms (27) and comprises openings (67) for allowing cooling fluid to flow through the seal strip (41)
IPC 8 full level
CPC (source: EP)
F01D 9/023 (2013.01); F01D 9/041 (2013.01); F05D 2240/81 (2013.01); F05D 2260/201 (2013.01)
Citation (applicant)
- US 2008101927 A1 20080501 - STRAIN JOHN [US], et al
- US 6641144 B2 20031104 - MOHAMMED-FAKIR ABDUL-AZEEZ [US], et al
- US 6572331 B1 20030603 - MOHAMMED-FAKIR ABDUL-AZEEZ [US], et al
- US 6637753 B2 20031028 - MOHAMMED-FAKIR ABDUL-AZEEZ [US], et al
- US 6637751 B2 20031028 - AKSIT MAHMUT FARUK [TR], et al
- US 2005244267 A1 20051103 - COIGN ROBERT W [US], et al
Citation (search report)
- [A] EP 1607582 A1 20051221 - SNECMA MOTEURS [FR]
- [A] US 2006127215 A1 20060615 - DUROCHER ERIC [CA], et al
- [A] US 4883405 A 19891128 - WALKER ALAN [US]
- [A] EP 0513956 A1 19921119 - GEN ELECTRIC [US]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
DOCDB simple family (application)
EP 08018594 A 20081023; EP 2009061050 W 20090827