GB1185041A - Adjustable Bladed Rotors - Google Patents
Adjustable Bladed RotorsInfo
- Publication number
- GB1185041A GB1185041A GB06007/66A GB1600766A GB1185041A GB 1185041 A GB1185041 A GB 1185041A GB 06007/66 A GB06007/66 A GB 06007/66A GB 1600766 A GB1600766 A GB 1600766A GB 1185041 A GB1185041 A GB 1185041A
- Authority
- GB
- United Kingdom
- Prior art keywords
- motor
- adjustable
- blading
- drift
- variable
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H3/00—Propeller-blade pitch changing
- B63H3/06—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical
- B63H3/08—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical fluid
- B63H3/081—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical fluid actuated by control element coaxial with the propeller shaft
- B63H3/082—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical fluid actuated by control element coaxial with the propeller shaft the control element being axially reciprocatable
-
- 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
- B64C11/40—Blade pitch-changing mechanisms fluid, e.g. hydraulic automatic
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Hydraulic Motors (AREA)
Abstract
1,185,041. Adjustable blade propeller. DOWTY ROTOL Ltd. 11 April, 1967 [12 April, 1966], No. 16007/66. Heading B7V. [Also in Division F1] A rotor having adjustable blading, adjustment of which blades such as 1 is effected by the operation of fluid pressure motor 4, 5 includes first valve means 20 adjustable for control of the motor and having a valve element 21 movement of which controls both directions of adjustment of the blades, and further valve means 24 operative, upon the occurrence of a predetermined but inadvertent amount of drift of the motor in a chosen direction and thus of the blading, to lock the motor hydraulically to prevent further drift. In the embodiment described the predetermined amount of drift in the ease of a variable pitch aircraft propeller is governed by the position of poppet head 35 set by manual control linkage 22. The blading may also be of variable camber or variable twist type and the term " rotor " includes propellers, wind motors and fans.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB06007/66A GB1185041A (en) | 1966-04-12 | 1966-04-12 | Adjustable Bladed Rotors |
US630251A US3459267A (en) | 1966-04-12 | 1967-04-12 | Bladed rotors |
DE19671506629 DE1506629B1 (en) | 1966-04-12 | 1967-04-12 | Attack angle adjustment and locking device for propellers |
JP2336567A JPS4540496B1 (en) | 1966-04-12 | 1967-04-12 | |
SE5065/67A SE320890B (en) | 1966-04-12 | 1967-04-12 | |
CH535467A CH458084A (en) | 1966-04-12 | 1967-04-12 | Paddle rotor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB06007/66A GB1185041A (en) | 1966-04-12 | 1966-04-12 | Adjustable Bladed Rotors |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1185041A true GB1185041A (en) | 1970-03-18 |
Family
ID=10069507
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB06007/66A Expired GB1185041A (en) | 1966-04-12 | 1966-04-12 | Adjustable Bladed Rotors |
Country Status (6)
Country | Link |
---|---|
US (1) | US3459267A (en) |
JP (1) | JPS4540496B1 (en) |
CH (1) | CH458084A (en) |
DE (1) | DE1506629B1 (en) |
GB (1) | GB1185041A (en) |
SE (1) | SE320890B (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3603698A (en) * | 1969-11-19 | 1971-09-07 | Nordisk Ventilator | Axial flow fan wheel |
US3690788A (en) * | 1970-02-16 | 1972-09-12 | James M Pedersen | Controllable pitch propeller |
US3746466A (en) * | 1971-06-25 | 1973-07-17 | Dieselmotorenwerk Veb | Adjusting and locking device |
US3819296A (en) * | 1972-03-06 | 1974-06-25 | Mitsubishi Heavy Ind Ltd | Control for hydraulic machine having adjustable blades |
US3918837A (en) * | 1973-02-17 | 1975-11-11 | Dowty Rotol Ltd | Bladed rotors |
GB1478674A (en) * | 1974-07-03 | 1977-07-06 | Lips Bv | Feathering controllable pitch propeller |
US4348155A (en) * | 1980-03-17 | 1982-09-07 | United Technologies Corporation | Wind turbine blade pitch control system |
US4523891A (en) * | 1983-06-15 | 1985-06-18 | United Technologies Corporation | Propeller pitch change actuation system |
GB8800932D0 (en) * | 1988-01-15 | 1988-02-17 | Dowty Rotol Ltd | Propeller blade assembly |
US5263898A (en) * | 1988-12-14 | 1993-11-23 | General Electric Company | Propeller blade retention system |
US5186608A (en) * | 1991-10-25 | 1993-02-16 | United Technologies Corporation | Hydraulic low pitch switch for propeller pitch change system |
GB9408476D0 (en) * | 1994-04-28 | 1994-06-22 | Rolls Royce Plc | Blade pitch change mechanism |
DE102004017323A1 (en) * | 2004-04-06 | 2005-11-03 | Repower Systems Ag | Pitch control for blade in wind powered generator has a servo drive to vary the pitch and with a separate locking system to hold the basic pitch up to a set wind speed |
CN107933890A (en) * | 2017-11-08 | 2018-04-20 | 镇江市丹徒区顺发船舶螺旋桨有限公司 | A kind of propeller of later maintenance |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1050202B (en) * | 1959-02-05 | |||
US2781856A (en) * | 1952-06-06 | 1957-02-19 | Rotol Ltd | Control system for variable pitch screw propellers |
US3080928A (en) * | 1955-05-16 | 1963-03-12 | Dowty Rotol Ltd | Hydraulically operated variable pitch propellers |
GB927718A (en) * | 1958-12-04 | 1963-06-06 | Dowty Rotol Ltd | Improvements in or relating to variable pitch propellers and propeller fans |
US3219121A (en) * | 1962-08-03 | 1965-11-23 | John W Barden | Controllable pitch propeller hydraulic locking device |
US3261406A (en) * | 1963-05-16 | 1966-07-19 | United Aircraft Corp | Attitude control system for an aeronautical propeller |
US3240275A (en) * | 1963-12-03 | 1966-03-15 | Curtiss Wright Corp | Hydraulically operable pitch aircraft propeller |
US3242992A (en) * | 1964-09-25 | 1966-03-29 | United Aircraft Corp | Feedback system |
-
1966
- 1966-04-12 GB GB06007/66A patent/GB1185041A/en not_active Expired
-
1967
- 1967-04-12 US US630251A patent/US3459267A/en not_active Expired - Lifetime
- 1967-04-12 SE SE5065/67A patent/SE320890B/xx unknown
- 1967-04-12 CH CH535467A patent/CH458084A/en unknown
- 1967-04-12 DE DE19671506629 patent/DE1506629B1/en active Pending
- 1967-04-12 JP JP2336567A patent/JPS4540496B1/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
SE320890B (en) | 1970-02-16 |
DE1506629B1 (en) | 1970-02-26 |
CH458084A (en) | 1968-06-15 |
JPS4540496B1 (en) | 1970-12-19 |
US3459267A (en) | 1969-08-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |