Global Patent Index - EP 0856639 A3

EP 0856639 A3 2000-04-19 - Nozzle ring for a radial turbine

Title (en)

Nozzle ring for a radial turbine

Title (de)

Abgasturbine eines Turboladers

Title (fr)

Anneau de guidage pour une turbine radiale

Publication

EP 0856639 A3 (DE)

Application

EP 98810023 A

Priority

DE 19703033 A

Abstract (en)

[origin: CZ292035B6] In the present invention there is disclosed exhaust-gas turbine of a turbocharger comprising: a turbine casing (2) having a gas-inlet casing (3) a gas-outlet casing (4) and at least one turbine-side casing component (5); a turbine wheel (7) rotatably mounted on a shaft (6) and having moving blades (8), an inflow passage (9) formed in the turbine casing (2) upstream of the turbine wheel (7) for the exhaust gases (10) of an internal combustion engine connected to the turbocharger; and a nozzle ring (11) arranged in the inflow passage (9), fastened in a recess (19) of the turbine casing (2) and directing the exhaust gases (10) onto the moving blades (8). A radial expansion gap (20) is formed between the turbine casing (2) and the nozzle ring (11), and at least one seal (22, 28) is arranged in the expansion gap (20), wherein the nozzle ring (11) includes two fastening elements (16, 17), which are arranged in the recess (19) and are connected to one another via a number of guide blades (18). An encircling groove (21) accommodating the seal (22, 28) is formed either in at least one of the fastening elements (16, 17) or in at least one of the components of the turbine casing (2), which surround the fastening elements (16, 17).

IPC 1-7 (main, further and additional classification)

F01D 9/04; F01D 11/00; F01D 25/24

IPC 8 full level (invention and additional information)

F02B 39/00 (2006.01); F01D 9/04 (2006.01); F01D 11/00 (2006.01); F02C 6/12 (2006.01); F02C 7/28 (2006.01)

CPC (invention and additional information)

F01D 9/048 (2013.01); F01D 9/045 (2013.01); F01D 11/006 (2013.01); F05D 2220/40 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

DE 19703033 A1 19980730; CN 1192513 A 19980909; CZ 292035 B6 20030716; CZ 9800263 A3 19980812; EP 0856639 A2 19980805; EP 0856639 A3 20000419; JP 3004616 B2 20000131; JP H10220235 A 19980818; US 5964574 A 19991012

INPADOC legal status


2004-08-11 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20040130

2002-12-11 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20021028

2000-12-27 [AKX] PAYMENT OF DESIGNATION FEES

- Ref Legal Event Code: AKX

- Free Format Text: DE GB

2000-11-08 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000913

2000-06-28 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: ABB TURBO SYSTEMS AG

- Ref Legal Event Code: RAP1

2000-04-19 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2000-04-19 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Ref Legal Event Code: AX

- Free Format Text: AL;LT;LV;MK;RO;SI

2000-04-19 [RIC1] CLASSIFICATION (CORRECTION)

- Ref Legal Event Code: RIC1

- Free Format Text: 7F 01D 9/04 A, 7F 01D 11/00 B, 7F 01D 25/24 B

1998-08-05 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE GB

1998-08-05 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Ref Legal Event Code: AX

- Free Format Text: AL;LT;LV;MK;RO;SI