EP2935791A4 - Lightweight shrouded fan - Google Patents
Lightweight shrouded fanInfo
- Publication number
- EP2935791A4 EP2935791A4 EP13864578.3A EP13864578A EP2935791A4 EP 2935791 A4 EP2935791 A4 EP 2935791A4 EP 13864578 A EP13864578 A EP 13864578A EP 2935791 A4 EP2935791 A4 EP 2935791A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- lightweight
- shrouded fan
- shrouded
- fan
- lightweight shrouded
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
- F04D29/326—Rotors specially for elastic fluids for axial flow pumps for axial flow fans comprising a rotating shroud
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/02—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/22—Blade-to-blade connections, e.g. for damping vibrations
- F01D5/225—Blade-to-blade connections, e.g. for damping vibrations by shrouding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/04—Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor
- F02C3/107—Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor with two or more rotors connected by power transmission
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/02—Surge control
- F04D27/0261—Surge control by varying driving speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/16—Sealings between pressure and suction sides
- F04D29/161—Sealings between pressure and suction sides especially adapted for elastic fluid pumps
- F04D29/164—Sealings between pressure and suction sides especially adapted for elastic fluid pumps of an axial flow wheel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/321—Rotors specially for elastic fluids for axial flow pumps for axial flow compressors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2220/00—Application
- F05D2220/30—Application in turbines
- F05D2220/36—Application in turbines specially adapted for the fan of turbofan engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/60—Properties or characteristics given to material by treatment or manufacturing
- F05D2300/603—Composites; e.g. fibre-reinforced
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49229—Prime mover or fluid pump making
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/719,859 US20140212261A1 (en) | 2012-12-19 | 2012-12-19 | Lightweight shrouded fan |
PCT/US2013/075260 WO2014099713A1 (en) | 2012-12-19 | 2013-12-16 | Lightweight shrouded fan |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2935791A1 EP2935791A1 (en) | 2015-10-28 |
EP2935791A4 true EP2935791A4 (en) | 2016-01-20 |
Family
ID=50979065
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13864578.3A Withdrawn EP2935791A4 (en) | 2012-12-19 | 2013-12-16 | Lightweight shrouded fan |
Country Status (3)
Country | Link |
---|---|
US (1) | US20140212261A1 (en) |
EP (1) | EP2935791A4 (en) |
WO (1) | WO2014099713A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150285259A1 (en) * | 2014-04-05 | 2015-10-08 | Arthur John Wennerstrom | Filament-Wound Tip-Shrouded Axial Compressor or Fan Rotor System |
US10344711B2 (en) * | 2016-01-11 | 2019-07-09 | Rolls-Royce Corporation | System and method of alleviating blade flutter |
US10465539B2 (en) * | 2017-08-04 | 2019-11-05 | Pratt & Whitney Canada Corp. | Rotor casing |
US10724535B2 (en) * | 2017-11-14 | 2020-07-28 | Raytheon Technologies Corporation | Fan assembly of a gas turbine engine with a tip shroud |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040146393A1 (en) * | 2002-10-07 | 2004-07-29 | General Electric | Jet aircraft fan case containment design |
GB2483495A (en) * | 2010-09-10 | 2012-03-14 | Magna Parva Ltd | Rotor blade disc, eg for a turbofan engine, having blades supported by an outer ring |
US20120291449A1 (en) * | 2007-08-01 | 2012-11-22 | United Technologies Corporation | Turbine Section of High Bypass Turbofan |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3556675A (en) * | 1969-01-29 | 1971-01-19 | Gen Electric | Turbomachinery rotor with integral shroud |
US3580692A (en) * | 1969-07-18 | 1971-05-25 | United Aircraft Corp | Seal construction |
GB1432994A (en) * | 1973-05-02 | 1976-04-22 | Rolls Royce | Compressor for gas turbine engines |
US4239452A (en) * | 1978-06-26 | 1980-12-16 | United Technologies Corporation | Blade tip shroud for a compression stage of a gas turbine engine |
FR2761412B1 (en) * | 1997-03-27 | 1999-04-30 | Snecma | DOUBLE-BODY TURBOPROPULSOR GROUP WITH ISODROME REGULATION |
US6203273B1 (en) * | 1998-12-22 | 2001-03-20 | United Technologies Corporation | Rotary machine |
US6881036B2 (en) * | 2002-09-03 | 2005-04-19 | United Technologies Corporation | Composite integrally bladed rotor |
JP4891257B2 (en) * | 2004-12-08 | 2012-03-07 | ボルボ エアロ コーポレイション | Wheel for rotary flow equipment |
US7513103B2 (en) * | 2005-10-19 | 2009-04-07 | General Electric Company | Gas turbine engine assembly and methods of assembling same |
US7694505B2 (en) * | 2006-07-31 | 2010-04-13 | General Electric Company | Gas turbine engine assembly and method of assembling same |
US7254997B1 (en) * | 2006-10-12 | 2007-08-14 | David Hui | Anti-steal tire pressure monitoring apparatus |
US20140169972A1 (en) * | 2012-12-17 | 2014-06-19 | United Technologies Corporation | Fan with integral shroud |
-
2012
- 2012-12-19 US US13/719,859 patent/US20140212261A1/en not_active Abandoned
-
2013
- 2013-12-16 EP EP13864578.3A patent/EP2935791A4/en not_active Withdrawn
- 2013-12-16 WO PCT/US2013/075260 patent/WO2014099713A1/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040146393A1 (en) * | 2002-10-07 | 2004-07-29 | General Electric | Jet aircraft fan case containment design |
US20120291449A1 (en) * | 2007-08-01 | 2012-11-22 | United Technologies Corporation | Turbine Section of High Bypass Turbofan |
GB2483495A (en) * | 2010-09-10 | 2012-03-14 | Magna Parva Ltd | Rotor blade disc, eg for a turbofan engine, having blades supported by an outer ring |
Non-Patent Citations (1)
Title |
---|
See also references of WO2014099713A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20140212261A1 (en) | 2014-07-31 |
EP2935791A1 (en) | 2015-10-28 |
WO2014099713A1 (en) | 2014-06-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20150720 |
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AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): 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 |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
A4 | Supplementary search report drawn up and despatched |
Effective date: 20151218 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: F02C 7/00 20060101ALI20151214BHEP Ipc: F01D 5/22 20060101AFI20151214BHEP |
|
DAX | Request for extension of the european patent (deleted) | ||
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: UNITED TECHNOLOGIES CORPORATION |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
17Q | First examination report despatched |
Effective date: 20180710 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: RAYTHEON TECHNOLOGIES CORPORATION |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20210701 |