EP 2514975 B1 20170802 - Flow engine
Title (en)
Flow engine
Title (de)
Strömungsmaschine
Title (fr)
Turbomachine
Publication
Application
Priority
DE 102011007767 A 20110420
Abstract (en)
[origin: EP2514975A2] The fluid-flow machine has rotors (11,21,31) having a rotary element with multiple rotor blades (12,22,32) arranged on the rotary element, and the circumferential casings (15,25) having a central axis (2) and surrounding the rotor. The circumferential casing or a part has the annular space surfaces (16,26). The annular space surface has a structuring at least in one area adjoining a rotor on the circumferential side. The structuring of the annular space surface has, relative to the central axis of the circumferential casing, a circumferentially asymmetrical design.
IPC 8 full level
F04D 29/66 (2006.01); F01D 25/04 (2006.01); F04D 29/16 (2006.01); F04D 29/52 (2006.01); F04D 29/68 (2006.01)
CPC (source: EP US)
F01D 11/08 (2013.01 - EP US); F01D 25/06 (2013.01 - EP US); F04D 29/164 (2013.01 - EP US); F04D 29/526 (2013.01 - EP US); F04D 29/661 (2013.01 - EP US); F04D 29/685 (2013.01 - EP US)
Citation (examination)
DE 60130577 T2 20080626 - PRATT & WHITNEY CANADA [CA]
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 RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2514975 A2 20121024; EP 2514975 A3 20140611; EP 2514975 B1 20170802; DE 102011007767 A1 20121025; US 2012269619 A1 20121025; US 9816528 B2 20171114
DOCDB simple family (application)
EP 12164964 A 20120420; DE 102011007767 A 20110420; US 201213451657 A 20120420