GB984126A - Servo-mechanism for variable pitch propellers - Google Patents

Servo-mechanism for variable pitch propellers

Info

Publication number
GB984126A
GB984126A GB40590/62A GB4059062A GB984126A GB 984126 A GB984126 A GB 984126A GB 40590/62 A GB40590/62 A GB 40590/62A GB 4059062 A GB4059062 A GB 4059062A GB 984126 A GB984126 A GB 984126A
Authority
GB
United Kingdom
Prior art keywords
piston
crank
valve
rod
block
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
GB40590/62A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB984126A publication Critical patent/GB984126A/en
Expired legal-status Critical Current

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
    • B64C11/40—Blade pitch-changing mechanisms fluid, e.g. hydraulic automatic
    • 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
    • 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
    • B63H2003/084—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 with annular cylinder and piston

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

984,126. Variable pitch propellers. N. J. LIAAEN. Oct. 26, 1962 [Oct. 26, 1961], No. 40590/62. Heading B7V. In a servo-mechanism for variable pitch propellers wherein a couple of mutually oppositely directed rotational forces act on each blade base of the propeller, during rotation into forward movement position the forces of the couple act on either side of the axis of rotation of the blade whereas when effecting a rotation movement astern only one of the forces is operative. Each blade 3 is secured to a disc 4 provided with cranks 6 and 7. A piston 9 has a rod 10 carrying a slide means 11 comprising guide members 111, 112 for a slide block 12 on the crank 6. A piston 13 slidable on the rod 10 has a projection 131 with a face 132 engaging a slide block 15 on the crank 7. The piston rod houses a slide valve 16 but in another embodiment this valve is not in the propeller hub but is mounted inside the vessel. When the valve 16 is positioned so that pressure medium enters the space between the pistons 9 and 13 to move them apart, the piston 9 moves the member 111 to engage the block 12 to effect clockwise rotation of the crank disc 4, while the piston 13 moves so that the face 132 engages block 15 to move crank 7 and thus also rotate disc 4 clockwise. When the valve 16 is positioned to supply pressure medium to the head of the piston 9, the latter will move, via the rod 10, member 112, block 12 and crank 6, to rotate the crank disc anti-clockwise. The spaces on both sides of the piston 13 will be open to exhaust so that this piston is rendered ineffective.
GB40590/62A 1961-10-26 1962-10-26 Servo-mechanism for variable pitch propellers Expired GB984126A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO14192661 1961-10-26

Publications (1)

Publication Number Publication Date
GB984126A true GB984126A (en) 1965-02-24

Family

ID=19908614

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40590/62A Expired GB984126A (en) 1961-10-26 1962-10-26 Servo-mechanism for variable pitch propellers

Country Status (3)

Country Link
US (1) US3171494A (en)
DK (1) DK111869B (en)
GB (1) GB984126A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108357658A (en) * 2018-01-30 2018-08-03 苏州船用动力系统股份有限公司 A kind of propeller pitch adjusting structure
CN108750057A (en) * 2018-06-28 2018-11-06 中国船舶重工集团公司第七0四研究所 The distance-adjustable oar hub of double-crank transmission
CN109733578A (en) * 2019-03-12 2019-05-10 中国船舶重工集团公司第七0四研究所 High-power, large scale distance-adjustable oar hub

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3393749A (en) * 1967-08-25 1968-07-23 Feroy Arne Controllable pitch propellers
US3645644A (en) * 1970-01-22 1972-02-29 Hydro Drive Corp Interlocking variable-pitch propeller assembly
US4142834A (en) * 1977-06-03 1979-03-06 Arne Feroy Adjustment means for achieving equal crankpin loading in a controllable pitch propeller mechanism
US4365937A (en) * 1979-11-26 1982-12-28 Hiebert Harold L Adjustable pitch propeller drive
US5141399A (en) * 1990-10-18 1992-08-25 United Technologies Corporation Pitch change control system
CN108945364B (en) * 2018-05-25 2021-01-19 南京高精船用设备有限公司 Large ship propeller based on split type guide frame structure

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2693243A (en) * 1952-07-23 1954-11-02 John H Strandell Double crank controllable pitch propeller
BE537325A (en) * 1954-04-13
US2913057A (en) * 1955-06-20 1959-11-17 Baldwin Lima Hamilton Corp Operating mechanism for adjustable blade propeller
GB828942A (en) * 1957-04-18 1960-02-24 Ernest Charles Hatcher Improvements relating to propellers or the like having variable-pitch blades
US2925131A (en) * 1958-12-10 1960-02-16 Baldwin Lima Hamilton Corp Controllable pitch propeller

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108357658A (en) * 2018-01-30 2018-08-03 苏州船用动力系统股份有限公司 A kind of propeller pitch adjusting structure
CN108750057A (en) * 2018-06-28 2018-11-06 中国船舶重工集团公司第七0四研究所 The distance-adjustable oar hub of double-crank transmission
CN108750057B (en) * 2018-06-28 2024-06-04 中国船舶重工集团公司第七0四研究所 Double-crank transmission adjustable pitch propeller hub
CN109733578A (en) * 2019-03-12 2019-05-10 中国船舶重工集团公司第七0四研究所 High-power, large scale distance-adjustable oar hub
CN109733578B (en) * 2019-03-12 2024-03-22 中国船舶重工集团公司第七0四研究所 High-power and large-size adjustable pitch propeller hub

Also Published As

Publication number Publication date
US3171494A (en) 1965-03-02
DK111869B (en) 1968-10-14

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