DE69007125D1 - Blattwinkelverstelleinrichtung. - Google Patents
Blattwinkelverstelleinrichtung.Info
- Publication number
- DE69007125D1 DE69007125D1 DE91902560T DE69007125T DE69007125D1 DE 69007125 D1 DE69007125 D1 DE 69007125D1 DE 91902560 T DE91902560 T DE 91902560T DE 69007125 T DE69007125 T DE 69007125T DE 69007125 D1 DE69007125 D1 DE 69007125D1
- Authority
- DE
- Germany
- Prior art keywords
- angle adjustment
- blade angle
- blade
- adjustment
- angle
- 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.)
- Expired - Fee Related
Links
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
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Control Of Turbines (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/457,130 US5042966A (en) | 1989-12-26 | 1989-12-26 | Pitch control system |
PCT/US1990/007133 WO1991009774A1 (en) | 1989-12-26 | 1990-12-05 | Pitch control system |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69007125D1 true DE69007125D1 (de) | 1994-04-07 |
DE69007125T2 DE69007125T2 (de) | 1994-09-22 |
Family
ID=23815566
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69007125T Expired - Fee Related DE69007125T2 (de) | 1989-12-26 | 1990-12-05 | Blattwinkelverstelleinrichtung. |
Country Status (5)
Country | Link |
---|---|
US (1) | US5042966A (de) |
EP (1) | EP0507860B1 (de) |
BR (1) | BR9007947A (de) |
DE (1) | DE69007125T2 (de) |
WO (1) | WO1991009774A1 (de) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5174718A (en) * | 1991-08-12 | 1992-12-29 | United Technologies Corporation | Blade pitch change control system |
US5364231A (en) * | 1992-12-22 | 1994-11-15 | Alliedsignal Inc. | Full authority propeller pitch control |
US5897293A (en) * | 1996-11-22 | 1999-04-27 | United Technologies Corporation | Counterweighted propeller control system |
US6059528A (en) * | 1996-11-22 | 2000-05-09 | United Technologies Corporation | Electronic propeller control system |
US6422816B1 (en) * | 2001-05-21 | 2002-07-23 | Hamilton Sundstrand Corporation | Variable pitch propeller control system |
US6511292B2 (en) * | 2001-06-27 | 2003-01-28 | Hamilton Sundstrand Corporation | Backup governing system for a variable pitch propeller |
US7118336B2 (en) * | 2003-12-19 | 2006-10-10 | Pratt & Whitney Canada Corp. | Pressurized oil supply for propeller engine system |
US7304694B2 (en) * | 2005-01-12 | 2007-12-04 | Cree, Inc. | Solid colloidal dispersions for backlighting of liquid crystal displays |
US20100318245A1 (en) * | 2005-03-03 | 2010-12-16 | Nabtesco Corporation | Flight control system |
EP2050670A3 (de) * | 2008-01-11 | 2011-11-23 | MT-Propeller Entwicklung GmbH | Elektro-Hydraulischer Propellerregler |
EP2052965B1 (de) * | 2008-01-11 | 2013-05-15 | MT-Propeller Entwicklung GmbH | Hydraulischer Verstellpropeller |
US8172530B2 (en) * | 2009-06-09 | 2012-05-08 | Hamilton Sundstrand Corporation | Pitch change actuation system for a counter-rotating propeller |
US8167553B2 (en) * | 2009-06-09 | 2012-05-01 | Hamilton Sundstrand Corporation | Electrical system for driving a propeller pitch change mechanism |
US8277182B2 (en) * | 2009-07-02 | 2012-10-02 | Hamilton Sundstrand Corporation | Remote pitch controller for a variable pitch propeller |
GB201007565D0 (en) * | 2010-05-06 | 2010-06-23 | Rolls Royce Plc | Pitch control mechanism |
GB201007564D0 (en) | 2010-05-06 | 2010-06-23 | Rolls Royce Plc | Back-up featherer |
GB201007569D0 (en) | 2010-05-06 | 2010-06-23 | Rolls Royce Plc | Pitch control mechanism |
GB201007567D0 (en) | 2010-05-06 | 2010-06-23 | Rolls Royce Plc | BAck-up featherer |
US8535007B2 (en) | 2010-05-18 | 2013-09-17 | Hamilton Sundstrand Corporation | Hydraulic actuator locking device |
FR3037922B1 (fr) * | 2015-06-23 | 2017-07-07 | Turbomeca | Dispositif de regulation d'une helice a pales a calage variable d'un turbopropulseur |
US10040565B2 (en) | 2015-09-22 | 2018-08-07 | Honeywell International Inc. | Single lever turboprop control systems and methods utilizing torque-based and power based scheduling |
US10683082B2 (en) * | 2016-04-29 | 2020-06-16 | Ratier-Figeac Sas | Hydraulic actuation systems |
US10793256B2 (en) * | 2016-09-12 | 2020-10-06 | Pratt & Whitney Canada Corp. | Propeller blade angle control system |
US10807701B2 (en) | 2019-02-08 | 2020-10-20 | Honeywell International Inc. | Aircraft turboprop engine propeller pitch control system including a controllable feather valve |
CN111392031B (zh) * | 2020-02-24 | 2022-05-06 | 深圳联合飞机科技有限公司 | 一种旋翼变距装置 |
CN112627992B (zh) * | 2020-12-17 | 2023-03-14 | 中国航空工业集团公司成都飞机设计研究所 | 一种发动机控制*** |
US20240217649A1 (en) * | 2022-12-30 | 2024-07-04 | Pratt & Whitney Canada Corp. | Controlling rate of rotor feather by system secondary to primary blade angle control system |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2761518A (en) * | 1951-09-08 | 1956-09-04 | Gen Motors Corp | Propeller pitch changing mechanism |
US2720927A (en) * | 1951-09-21 | 1955-10-18 | Curtiss Wright Corp | Propeller control system |
US2840170A (en) * | 1954-04-28 | 1958-06-24 | United Aircraft Corp | Servo control system for a variable pitch propeller |
US2865460A (en) * | 1954-06-17 | 1958-12-23 | United Aircraft Corp | Pitch control servo system for an aeronautical propeller |
GB790226A (en) * | 1954-12-30 | 1958-02-05 | Rotol Ltd | Improvements in or relating to variable pitch airscrews |
US2840171A (en) * | 1955-10-28 | 1958-06-24 | United Aircraft Corp | Control system for a variable pitch propeller |
US2913056A (en) * | 1956-10-01 | 1959-11-17 | United Aircraft Corp | Propeller control anticipator |
US3261406A (en) * | 1963-05-16 | 1966-07-19 | United Aircraft Corp | Attitude control system for an aeronautical propeller |
US3212586A (en) * | 1964-07-30 | 1965-10-19 | United Aircraft Corp | Pitch control system |
US3302724A (en) * | 1965-06-11 | 1967-02-07 | Westinghouse Air Brake Co | Automatic control apparatus for variable pitch propellers |
SE312497B (de) * | 1968-05-03 | 1969-07-14 | Karlstad Mekaniska Ab | |
GB1478674A (en) * | 1974-07-03 | 1977-07-06 | Lips Bv | Feathering controllable pitch propeller |
US4523891A (en) * | 1983-06-15 | 1985-06-18 | United Technologies Corporation | Propeller pitch change actuation system |
US4588354A (en) * | 1983-08-05 | 1986-05-13 | United Technologies Corporation | Engine speed control in propeller pitch control systems |
US4533296A (en) * | 1983-11-07 | 1985-08-06 | United Technologies Corporation | Pitch control system for variable pitch propeller |
GB8723247D0 (en) * | 1987-10-03 | 1987-11-04 | Dowty Rotol Ltd | Propeller blade systems |
GB8916714D0 (en) * | 1989-07-21 | 1989-09-06 | Dowty Rotol Ltd | A propeller blade pitch control mechanism |
-
1989
- 1989-12-26 US US07/457,130 patent/US5042966A/en not_active Expired - Lifetime
-
1990
- 1990-12-05 WO PCT/US1990/007133 patent/WO1991009774A1/en active IP Right Grant
- 1990-12-05 DE DE69007125T patent/DE69007125T2/de not_active Expired - Fee Related
- 1990-12-05 BR BR909007947A patent/BR9007947A/pt not_active IP Right Cessation
-
1991
- 1991-07-25 EP EP91902560A patent/EP0507860B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5042966A (en) | 1991-08-27 |
EP0507860B1 (de) | 1994-03-02 |
WO1991009774A1 (en) | 1991-07-11 |
EP0507860A1 (de) | 1992-10-14 |
BR9007947A (pt) | 1992-10-06 |
DE69007125T2 (de) | 1994-09-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |