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GB1347019A - Variable-pitch rotor blade mechanism - Google Patents

Variable-pitch rotor blade mechanism

Info

Publication number
GB1347019A
GB1347019A GB1347019DA GB1347019A GB 1347019 A GB1347019 A GB 1347019A GB 1347019D A GB1347019D A GB 1347019DA GB 1347019 A GB1347019 A GB 1347019A
Authority
GB
United Kingdom
Prior art keywords
bush
shaft
yoke
locking
propeller
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
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.)
ROSTOCK DIESELMOTOREN
Original Assignee
ROSTOCK DIESELMOTOREN
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 ROSTOCK DIESELMOTOREN filed Critical ROSTOCK DIESELMOTOREN
Publication of GB1347019A publication Critical patent/GB1347019A/en
Expired legal-status Critical Current

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
    • 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)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

1347019 Variable pitch propellers DIESELMOTORENWERK ROSTOCK VEB 4 March 1971 6015/71 Heading B7V A variable pitch rotor blade mechanism for adjusting and locking propeller blades 1 includes a yoke 8 mounted on shaft 4. Working chambers 7, 7<SP>1</SP> located at each end of the yoke are connected with oil pump 21 and control valve 12 connects the pump with one or the other of the working chambers. Clamp bush 5 between the shaft and the yoke is fixedly mounted for axial movement with the yoke, the joint between the bush and the shaft being sufficiently tight to lock the bush against axial movement on the shaft during operation of the propeller. Oil passages 18, 13 between each chamber and the junction of the bush and shaft allow pressurized oil applied to one of the chambers by operation of the control valve to release the bush for movement on the shaft to effect propeller pitch variation. When the pressure of oil drops in the one chamber the pressure at the junction drops and the bush is locked against axial movement along the shaft thus locking the propeller blades in a selected pitch position. In the embodiment shown this locking of the bush is operated by movement of one or other of limit switches 16 on cam surface 17.
GB1347019D 1971-03-04 1971-03-04 Variable-pitch rotor blade mechanism Expired GB1347019A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB601571 1971-03-04

Publications (1)

Publication Number Publication Date
GB1347019A true GB1347019A (en) 1974-02-13

Family

ID=9806891

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1347019D Expired GB1347019A (en) 1971-03-04 1971-03-04 Variable-pitch rotor blade mechanism

Country Status (1)

Country Link
GB (1) GB1347019A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2296532A (en) * 1994-12-24 1996-07-03 Klein Schanzlin & Becker Ag A variable-pitch screw
GB2296745A (en) * 1994-12-24 1996-07-10 Klein Schanzlin & Becker Ag A variable-pitch screw in which an adjusting mechanism is disposed.
CN113279891A (en) * 2021-05-25 2021-08-20 广东省源天工程有限公司 Oil-free rotating wheel for hydropower station

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2296532A (en) * 1994-12-24 1996-07-03 Klein Schanzlin & Becker Ag A variable-pitch screw
GB2296745A (en) * 1994-12-24 1996-07-10 Klein Schanzlin & Becker Ag A variable-pitch screw in which an adjusting mechanism is disposed.
CN113279891A (en) * 2021-05-25 2021-08-20 广东省源天工程有限公司 Oil-free rotating wheel for hydropower station

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees