EP 0990770 B1 20030625 - Blading for highly loaded turbines
Title (en)
Blading for highly loaded turbines
Title (de)
Hochbelastete Turbinenbeschaufelung
Title (fr)
Aubage pour turbines fortement sollicitées
Publication
Application
Priority
EP 98810980 A 19980929
Abstract (en)
[origin: EP0990770A1] The turbine has an axial turbine stage of guide blade row (LE) and rotor blade row (LA) in a common housing (30) with intake section (31) and outlet section (32). The ratio of axial chord length (Sax) to height (h) of the blade rows for a turbine part located between intake and outlet sections, is chosen, so that a figure RSH is larger than 1. RSH is.................. P (W) = turbine output p (Pa) = arithmetical mean between intake and outlet pressure of turbine z (-) = number of stages m (kg/s) = working medium mass flow rate through turbine N (1/s) = RPM hi (m) = height of blade in row i, on outlet side of blade DM,i(m)= average mean of outer hub diameter and inner housing diameter measured on outlet side of blade in row i, sax,i (m) = max. axial chord length of blade in same row.
IPC 1-7
IPC 8 full level
B23P 15/02 (2006.01); F01D 5/00 (2006.01); F01D 5/06 (2006.01); F01D 5/14 (2006.01); F01D 9/02 (2006.01)
CPC (source: EP US)
F01D 5/00 (2013.01 - EP US); F01D 5/06 (2013.01 - EP US); Y10S 416/02 (2013.01 - EP US); Y10S 416/05 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
EP 0990770 A1 20000405; EP 0990770 B1 20030625; CN 1218115 C 20050907; CN 1249393 A 20000405; DE 59808832 D1 20030731; JP 2000110503 A 20000418; JP 4475703 B2 20100609; US 6270315 B1 20010807
DOCDB simple family (application)
EP 98810980 A 19980929; CN 99119685 A 19990927; DE 59808832 T 19980929; JP 26908599 A 19990922; US 39556299 A 19990914