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GB1189444A - Improvements in or relating to reversible pitch propellers - Google Patents

Improvements in or relating to reversible pitch propellers

Info

Publication number
GB1189444A
GB1189444A GB3366266A GB3366266A GB1189444A GB 1189444 A GB1189444 A GB 1189444A GB 3366266 A GB3366266 A GB 3366266A GB 3366266 A GB3366266 A GB 3366266A GB 1189444 A GB1189444 A GB 1189444A
Authority
GB
United Kingdom
Prior art keywords
pitch
blade
propeller
reverse
throttle
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
Application number
GB3366266A
Inventor
Cyril Spalding
Ronald John Frederick Geary
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.)
Hawker Siddeley Dynamics Ltd
Original Assignee
Hawker Siddeley Dynamics Ltd
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.)
Filing date
Publication date
Application filed by Hawker Siddeley Dynamics Ltd filed Critical Hawker Siddeley Dynamics Ltd
Priority to GB3366266A priority Critical patent/GB1189444A/en
Publication of GB1189444A publication Critical patent/GB1189444A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60V—AIR-CUSHION VEHICLES
    • B60V1/00—Air-cushion
    • B60V1/14—Propulsion; Control thereof
    • 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
    • B64C11/32—Blade pitch-changing mechanisms mechanical
    • B64C11/34—Blade pitch-changing mechanisms mechanical automatic
    • B64C11/343—Blade pitch-changing mechanisms mechanical automatic actuated by the centrifugal force or the aerodynamic drag acting on the blades

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)

Abstract

1,189,444. Controlling reversible pitch propellers. HAWKER SIDDELEY DYNAMICS Ltd. 18 Sept., 1967 [26 July, 1966], No. 33662/66. Heading B7V. In a reversible pitch propeller, twisting moments on the propeller blades such as blade 1 due to rotation of the propeller are employed to bring about an increase in blade pitch angle automatically with increase in engine power, irrespective of whether the blades are in forward or reverse pitch, and forward or reverse pitch is selected by movement of a pilot's throttle or power control lever from an idling or neutral setting into a forward throttle range or a reverse throttle range, respectively. Pins 5 and 6 on each blade root are both out of engagement with spring-loaded piston 7 at zero pitch and one or the other comes into engagement with the piston according to whether the angular direction of the propeller is forward or reverse. In the embodiment shown, shaft 11 is coupled to each blade by a radial pin 16 which moves axially with the shaft and is engaged in a cam slot 17 in the blade root.
GB3366266A 1966-07-26 1966-07-26 Improvements in or relating to reversible pitch propellers Expired GB1189444A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3366266A GB1189444A (en) 1966-07-26 1966-07-26 Improvements in or relating to reversible pitch propellers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3366266A GB1189444A (en) 1966-07-26 1966-07-26 Improvements in or relating to reversible pitch propellers

Publications (1)

Publication Number Publication Date
GB1189444A true GB1189444A (en) 1970-04-29

Family

ID=10355810

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3366266A Expired GB1189444A (en) 1966-07-26 1966-07-26 Improvements in or relating to reversible pitch propellers

Country Status (1)

Country Link
GB (1) GB1189444A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2204644A (en) * 1987-05-15 1988-11-16 Intelbrit Technologies Reversible-pump impeller
JP2012071823A (en) * 2010-08-06 2012-04-12 Ge Aviation Systems Ltd Propeller for aircraft
CN104176449A (en) * 2013-05-23 2014-12-03 上海航天动力科技工程有限公司 Automatic leveling control device for air cushion suspension transport equipment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2204644A (en) * 1987-05-15 1988-11-16 Intelbrit Technologies Reversible-pump impeller
JP2012071823A (en) * 2010-08-06 2012-04-12 Ge Aviation Systems Ltd Propeller for aircraft
US9527578B2 (en) 2010-08-06 2016-12-27 Ge Aviation Systems Limited Propellers for aircraft
CN104176449A (en) * 2013-05-23 2014-12-03 上海航天动力科技工程有限公司 Automatic leveling control device for air cushion suspension transport equipment

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PLNP Patent lapsed through nonpayment of renewal fees