CA1270802A - Prop-fan with improved stability - Google Patents

Prop-fan with improved stability

Info

Publication number: CA1270802A
Authority: CA; Canada
Prior art keywords: prop; blade; fan; blades; tip
Prior art date: 1985-02-07
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.): Expired - Lifetime

Application number

CA000488883A

Other languages

English (en)

French (fr)

Inventor

Edward A. Rothman

John A. Violette

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.)

RTX Corp

Original Assignee

United Technologies Corp

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.)

1985-02-07

Filing date

1985-08-16

Publication date

1990-06-26

1985-08-16 Application filed by United Technologies Corp filed Critical United Technologies Corp

1990-06-26 Application granted granted Critical

1990-06-26 Publication of CA1270802A publication Critical patent/CA1270802A/en

2007-06-26 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

230000000694 effects Effects 0.000 claims description 3
230000001747 exhibiting effect Effects 0.000 claims 1
230000003068 static effect Effects 0.000 claims 1
238000005452 bending Methods 0.000 description 16
230000008878 coupling Effects 0.000 description 10
238000010168 coupling process Methods 0.000 description 10
238000005859 coupling reaction Methods 0.000 description 10
230000001965 increasing effect Effects 0.000 description 4
238000006073 displacement reaction Methods 0.000 description 2
230000002708 enhancing effect Effects 0.000 description 2
238000000605 extraction Methods 0.000 description 2
230000004048 modification Effects 0.000 description 2
238000012986 modification Methods 0.000 description 2
239000010936 titanium Substances 0.000 description 2
101100515517 Arabidopsis thaliana XI-I gene Proteins 0.000 description 1
101100309040 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) lea-1 gene Proteins 0.000 description 1
RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
239000000446 fuel Substances 0.000 description 1
238000005259 measurement Methods 0.000 description 1
239000007787 solid Substances 0.000 description 1
230000002459 sustained effect Effects 0.000 description 1
229910052719 titanium Inorganic materials 0.000 description 1

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
- B64C11/16—Blades
- B64C11/18—Aerodynamic features
- 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

Physics & Mathematics (AREA)
Fluid Mechanics (AREA)
Engineering & Computer Science (AREA)
Aviation & Aerospace Engineering (AREA)
Structures Of Non-Positive Displacement Pumps (AREA)
Percussion Or Vibration Massage (AREA)
Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)

CA000488883A 1985-02-07 1985-08-16 Prop-fan with improved stability Expired - Lifetime CA1270802A (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US699,119		1976-06-23
US69911985A	1985-02-07	1985-02-07

Publications (1)

Publication Number	Publication Date
CA1270802A true CA1270802A (en)	1990-06-26

Family

ID=24808020

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA000488883A Expired - Lifetime CA1270802A (en)	1985-02-07	1985-08-16	Prop-fan with improved stability

Country Status (7)

Country	Link
JP (1)	JPS61181798A (it)
BR (1)	BR8504907A (it)
CA (1)	CA1270802A (it)
DE (1)	DE3535399A1 (it)
FR (1)	FR2576872B1 (it)
GB (1)	GB2170868B (it)
IT (1)	IT1185996B (it)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2605588B1 (fr) *	1986-10-24	1989-04-28	Onera (Off Nat Aerospatiale)	Perfectionnements apportes aux helices aeriennes, notamment pour propulseurs d'aeronef
DE3738785A1 (de) *	1986-11-19	1988-05-26	Gen Electric	Gegenlaeufig rotierende flugzeug-antriebsschaufeln
USRE34207E (en) *	1986-11-19	1993-03-30	General Electric Company	Counterrotating aircraft propulsor blades
US5102302A (en) *	1988-06-02	1992-04-07	General Electric Company	Fan blade mount
US5165856A (en) *	1988-06-02	1992-11-24	General Electric Company	Fan blade mount
GB2220712B (en) *	1988-07-13	1992-12-09	Rolls Royce Plc	Open rotor blading
US4971641A (en) *	1988-11-14	1990-11-20	General Electric Company	Method of making counterrotating aircraft propeller blades
US6071077A (en) *	1996-04-09	2000-06-06	Rolls-Royce Plc	Swept fan blade
RU2256585C1 (ru) *	2004-01-20	2005-07-20	Общество С Ограниченной Ответственностью "Мидера-К"	Воздушный винт
GB2469516A (en) *	2009-04-17	2010-10-20	Insensys Ltd	Rotor blade with optical strain sensors covered by erosion shield
US20130340406A1 (en) *	2012-01-31	2013-12-26	Edward J. Gallagher	Fan stagger angle for geared gas turbine engine
EP3108123B1 (en)	2014-02-19	2023-10-04	Raytheon Technologies Corporation	Turbofan engine with geared architecture and lpc airfoils
EP3985226B1 (en)	2014-02-19	2024-12-25	RTX Corporation	Gas turbine engine airfoil
WO2015175073A2 (en)	2014-02-19	2015-11-19	United Technologies Corporation	Gas turbine engine airfoil
EP3108103B1 (en)	2014-02-19	2023-09-27	Raytheon Technologies Corporation	Fan blade for a gas turbine engine
EP3108120B1 (en)	2014-02-19	2021-03-31	Raytheon Technologies Corporation	Gas turbine engine having a geared architecture and a specific fixed airfoil structure
WO2015175044A2 (en)	2014-02-19	2015-11-19	United Technologies Corporation	Gas turbine engine airfoil
US9567858B2 (en)	2014-02-19	2017-02-14	United Technologies Corporation	Gas turbine engine airfoil
US10584715B2 (en)	2014-02-19	2020-03-10	United Technologies Corporation	Gas turbine engine airfoil
WO2015175052A2 (en)	2014-02-19	2015-11-19	United Technologies Corporation	Gas turbine engine airfoil
US10465702B2 (en)	2014-02-19	2019-11-05	United Technologies Corporation	Gas turbine engine airfoil
US10570916B2 (en)	2014-02-19	2020-02-25	United Technologies Corporation	Gas turbine engine airfoil
US10570915B2 (en)	2014-02-19	2020-02-25	United Technologies Corporation	Gas turbine engine airfoil
WO2015126454A1 (en)	2014-02-19	2015-08-27	United Technologies Corporation	Gas turbine engine airfoil
US9140127B2 (en)	2014-02-19	2015-09-22	United Technologies Corporation	Gas turbine engine airfoil
EP3108105B1 (en)	2014-02-19	2021-05-12	Raytheon Technologies Corporation	Gas turbine engine airfoil
US10495106B2 (en)	2014-02-19	2019-12-03	United Technologies Corporation	Gas turbine engine airfoil
EP3108106B1 (en)	2014-02-19	2022-05-04	Raytheon Technologies Corporation	Gas turbine engine airfoil
EP3108101B1 (en) *	2014-02-19	2022-04-20	Raytheon Technologies Corporation	Gas turbine engine airfoil
WO2015175043A2 (en)	2014-02-19	2015-11-19	United Technologies Corporation	Gas turbine engine airfoil
EP3575551B1 (en)	2014-02-19	2021-10-27	Raytheon Technologies Corporation	Gas turbine engine airfoil
WO2015126941A1 (en)	2014-02-19	2015-08-27	United Technologies Corporation	Gas turbine engine airfoil
EP3108100B1 (en)	2014-02-19	2021-04-14	Raytheon Technologies Corporation	Gas turbine engine fan blade
FR3045565B1 (fr)	2015-12-21	2018-07-27	Airbus Helicopters	Pale de rotor d'aeronef a geometrie adaptee pour l'ameloration acoustique lors d'un vol d'approche et l'amelioration des performances en vol d'avancement
FR3045564B1 (fr) *	2015-12-21	2018-08-17	Airbus Helicopters	Pale de rotor d'aeronef a geometrie adaptee pour l'amelioration acoustique lors de vols d'approche et l'amelioration des performances en vols stationnaire et d'avancement

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3989406A (en) *	1974-11-26	1976-11-02	Bolt Beranek And Newman, Inc.	Method of and apparatus for preventing leading edge shocks and shock-related noise in transonic and supersonic rotor blades and the like
US4171183A (en) *	1976-09-24	1979-10-16	United Technologies Corporation	Multi-bladed, high speed prop-fan
US4358246A (en) *	1979-07-16	1982-11-09	United Technologies Corporation	Noise reduction means for prop-fan and the construction thereof

1985
- 1985-08-16 CA CA000488883A patent/CA1270802A/en not_active Expired - Lifetime
- 1985-10-02 GB GB08524280A patent/GB2170868B/en not_active Expired
- 1985-10-03 DE DE19853535399 patent/DE3535399A1/de not_active Withdrawn
- 1985-10-04 BR BR8504907A patent/BR8504907A/pt not_active IP Right Cessation
- 1985-10-07 JP JP60223447A patent/JPS61181798A/ja active Pending
- 1985-10-07 IT IT22377/85A patent/IT1185996B/it active
- 1985-10-07 FR FR8514818A patent/FR2576872B1/fr not_active Expired

Also Published As

Publication number	Publication date
IT1185996B (it)	1987-11-18
GB2170868A (en)	1986-08-13
IT8522377A0 (it)	1985-10-07
JPS61181798A (ja)	1986-08-14
DE3535399A1 (de)	1986-08-07
BR8504907A (pt)	1986-12-16
FR2576872A1 (fr)	1986-08-08
FR2576872B1 (fr)	1987-07-24
GB2170868B (en)	1988-07-13
GB8524280D0 (en)	1985-11-06

Legal Events

Date	Code	Title	Description
1995-12-26	MKLA	Lapsed

Publication	Publication Date	Title
CA1270802A (en)	1990-06-26	Prop-fan with improved stability
US4730985A (en)	1988-03-15	Prop-fan with improved stability
CA2327850C (en)	2007-09-18	Swept barrel airfoil
US11401824B2 (en)	2022-08-02	Gas turbine engine outlet guide vane assembly
US5913661A (en)	1999-06-22	Striated hybrid blade
US5725354A (en)	1998-03-10	Forward swept fan blade
US5947688A (en)	1999-09-07	Frequency tuned hybrid blade
US6033186A (en)	2000-03-07	Frequency tuned hybrid blade
US6039542A (en)	2000-03-21	Panel damped hybrid blade
US9102397B2 (en)	2015-08-11	Airfoils including tip profile for noise reduction and method for fabricating same
US4408958A (en)	1983-10-11	Wind turbine blade
JP3924333B2 (ja)	2007-06-06	複合ブレード
US2920864A (en)	1960-01-12	Secondary flow reducer
US20060104812A1 (en)	2006-05-18	Mission replaceable rotor blade tip section
JPH09189202A (ja)	1997-07-22	ガスタービン用の部分的に金属製の翼
RU93056622A (ru)	1996-10-20	Устройство крепления лопасти к втулке винта с многослойной крепежной деталью, лопасть винта, снабженная такой деталью, и винт с такими лопастями
AU2003254095A1 (en)	2004-02-16	Hydrodynamically and aerodynamically optimized leading edge structure for propellers, wings, and airfoils
JP2620087B2 (ja)	1997-06-11	回転翼航空機用ブレード
EP0094064A1 (en)	1983-11-16	Wing tip thrust augmentation system
JPH0238200A (ja)	1990-02-07	プッシュ型航空機エンジン
JP2955532B2 (ja)	1999-10-04	ヘリコプタブレード用翼型
US20050281676A1 (en)	2005-12-22	Multi-hedral rotary wing
EP0167534A1 (en)	1986-01-15	WING PROFILE WITH IMPROVED LIFT.
Messenger et al.	1972	Two-Stage Fan I: Aerodynamic and Mechanical Design
CN221914586U (zh)	2024-10-29	一种旋翼飞行器的机臂和包括其的旋翼飞行器