EP 2518280 A1 20121031 - MULTISTAGE RADIAL TURBINE
Title (en)
MULTISTAGE RADIAL TURBINE
Title (de)
MEHRSTUFIGE RADIALTURBINE
Title (fr)
TURBINE RADIALE MULTIÉTAGÉE
Publication
Application
Priority
- JP 2009292600 A 20091224
- JP 2010067065 W 20100930
Abstract (en)
A multi-stage radial turbine that is capable of reducing the number of bearings and of improving the conversion efficiency is provided. Provided are a plurality of radial turbine rotor blades (5) that are attached at intervals to a single rotating shaft (3); a plurality of nozzles (19) that are individually installed on an upstream side of each of the radial turbine rotor blades and that accelerate a flow of fluid; a connecting channel portion (9) that connects gas an outlet portion (23) of the radial turbine rotor blade (5) on the front stage side and an upstream side of the nozzle (19) on the rear stage side, the connecting channel portion (9) being provided with a U-shaped bent portion (25) that deflects outward in the radial direction the flow of fluid that is made to flow out from the radial turbine rotor blade (5) in the shaft direction; a vane portion having a plurality of deflecting vanes (27) that deflect the flow of fluid inward in a rotation direction (R) while guiding the flow of fluid from the U-shaped bent portion (25) outward in the radial direction; and a return bent portion (31) that deflects inward in the radial direction the flow that is made to flow out from the vane portion (29) while swirling outward in the radial direction.
IPC 8 full level
F01D 25/24 (2006.01); F01D 1/06 (2006.01); F01D 5/04 (2006.01); F01D 9/02 (2006.01); F02C 7/00 (2006.01)
CPC (source: EP US)
F01D 1/06 (2013.01 - EP US); F01D 9/06 (2013.01 - EP US); F01D 13/02 (2013.01 - EP US); F05D 2210/43 (2013.01 - EP); F05D 2250/71 (2013.01 - EP US)
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 SE SI SK SM TR
DOCDB simple family (publication)
US 2012134797 A1 20120531; CN 102472114 A 20120523; EP 2518280 A1 20121031; EP 2518280 A4 20170726; JP 2011132877 A 20110707; RU 2011152805 A 20140227; RU 2518703 C2 20140610; WO 2011077801 A1 20110630
DOCDB simple family (application)
US 201013380247 A 20100930; CN 201080028243 A 20100930; EP 10839038 A 20100930; JP 2009292600 A 20091224; JP 2010067065 W 20100930; RU 2011152805 A 20100930