FR2964945B1 - Helice et systeme d'helices contrarotatives comprenant des moyens ameliores de limitation du calage, et turbomachine les comprenant - Google Patents

Helice et systeme d'helices contrarotatives comprenant des moyens ameliores de limitation du calage, et turbomachine les comprenant

Info

Publication number: FR2964945B1
Authority: FR; France
Prior art keywords: propeller; timing; limiting; improved means; turbomachine including
Prior art date: 2010-09-20
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.): Active

Application number

FR1057504A

Other languages

English (en)

Other versions

FR2964945A1 (fr

Inventor

Pascal Marly

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Safran Aircraft Engines SAS

Original Assignee

SNECMA SAS

Priority date (The priority date 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 date listed.)

2010-09-20

Filing date

2010-09-20

Publication date

2012-10-19

2010-09-20 Application filed by SNECMA SAS filed Critical SNECMA SAS

2010-09-20 Priority to FR1057504A priority Critical patent/FR2964945B1/fr

2011-09-18 Priority to US13/235,419 priority patent/US9260179B2/en

2012-03-23 Publication of FR2964945A1 publication Critical patent/FR2964945A1/fr

2012-10-19 Application granted granted Critical

2012-10-19 Publication of FR2964945B1 publication Critical patent/FR2964945B1/fr

Status Active legal-status Critical Current

2030-09-20 Anticipated expiration legal-status Critical

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
- B64C11/30—Blade pitch-changing mechanisms
- B64C11/38—Blade pitch-changing mechanisms fluid, e.g. hydraulic
- B64C11/385—Blade pitch-changing mechanisms fluid, e.g. hydraulic comprising feathering, braking or stopping systems
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D27/00—Arrangement or mounting of power plants in aircraft; Aircraft characterised by the type or position of power plants
- B64D27/02—Aircraft characterised by the type or position of power plants
- B64D27/026—Aircraft characterised by the type or position of power plants comprising different types of power plants, e.g. combination of a piston engine and a gas-turbine
- 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

Landscapes

Engineering & Computer Science (AREA)
Aviation & Aerospace Engineering (AREA)
Wind Motors (AREA)
Structures Of Non-Positive Displacement Pumps (AREA)

FR1057504A 2010-09-20 2010-09-20 Helice et systeme d'helices contrarotatives comprenant des moyens ameliores de limitation du calage, et turbomachine les comprenant Active FR2964945B1 (fr)

Priority Applications (2)

Application Number	Priority Date	Filing Date	Title
FR1057504A FR2964945B1 (fr)	2010-09-20	2010-09-20	Helice et systeme d'helices contrarotatives comprenant des moyens ameliores de limitation du calage, et turbomachine les comprenant
US13/235,419 US9260179B2 (en)	2010-09-20	2011-09-18	Propeller and system of counter-rotating propellers comprising improved means for limiting pitch, and a turbine engine comprising them

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR1057504A FR2964945B1 (fr)	2010-09-20	2010-09-20	Helice et systeme d'helices contrarotatives comprenant des moyens ameliores de limitation du calage, et turbomachine les comprenant

Publications (2)

Publication Number	Publication Date
FR2964945A1 FR2964945A1 (fr)	2012-03-23
FR2964945B1 true FR2964945B1 (fr)	2012-10-19

Family

ID=43923661

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR1057504A Active FR2964945B1 (fr)	2010-09-20	2010-09-20	Helice et systeme d'helices contrarotatives comprenant des moyens ameliores de limitation du calage, et turbomachine les comprenant

Country Status (2)

Country	Link
US (1)	US9260179B2 (fr)
FR (1)	FR2964945B1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR3011048B1 (fr) *	2013-09-24	2016-05-13	Snecma	Dispositif d'alimentation en fluide hydraulique d'un verin et mecanisme de commande de pas des pales d'une helice de turbomoteur comportant le verin
US10472050B2 (en)	2016-08-31	2019-11-12	Honeywell International Inc.	Propeller pitch control actuation system
US10747235B2 (en) *	2018-04-25	2020-08-18	The Boeing Company	Pitch trim prediction for aircraft

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2309744A1 (fr) *	1975-04-30	1976-11-26	Ratier Sa Forest	Dispositif de commande de variation du pas des pales d'un ventilateur
GB8723246D0 (en) *	1987-10-03	1987-11-04	Dowty Rotol Ltd	Bladed rotor assemblies
US5242265A (en) *	1990-07-23	1993-09-07	General Electric Company	Aircraft pitch change mechanism
DE4117735C1 (fr) *	1991-05-30	1992-10-29	Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De
GB0821783D0 (en)	2008-12-01	2009-01-07	Rolls Royce Plc	Blade pitch control system

2010
- 2010-09-20 FR FR1057504A patent/FR2964945B1/fr active Active
2011
- 2011-09-18 US US13/235,419 patent/US9260179B2/en active Active

Also Published As

Publication number	Publication date
US9260179B2 (en)	2016-02-16
FR2964945A1 (fr)	2012-03-23
US20120070291A1 (en)	2012-03-22

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Legal Events

Date	Code	Title	Description
2016-09-08	PLFP	Fee payment	Year of fee payment: 7
2017-05-15	PLFP	Fee payment	Year of fee payment: 8
2018-02-02	CD	Change of name or company name	Owner name: SAFRAN AIRCRAFT ENGINES, FR Effective date: 20170719
2018-08-22	PLFP	Fee payment	Year of fee payment: 9
2019-08-20	PLFP	Fee payment	Year of fee payment: 10
2020-08-19	PLFP	Fee payment	Year of fee payment: 11
2021-08-19	PLFP	Fee payment	Year of fee payment: 12
2022-08-19	PLFP	Fee payment	Year of fee payment: 13
2023-08-22	PLFP	Fee payment	Year of fee payment: 14
2024-08-20	PLFP	Fee payment	Year of fee payment: 15
2025-09-24	PLFP	Fee payment	Year of fee payment: 16