GB828942A - Improvements relating to propellers or the like having variable-pitch blades - Google Patents

Improvements relating to propellers or the like having variable-pitch blades

Info

Publication number
GB828942A
GB828942A GB12757/57A GB1275757A GB828942A GB 828942 A GB828942 A GB 828942A GB 12757/57 A GB12757/57 A GB 12757/57A GB 1275757 A GB1275757 A GB 1275757A GB 828942 A GB828942 A GB 828942A
Authority
GB
United Kingdom
Prior art keywords
blades
piston
pitch
cylinder
space
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
GB12757/57A
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
Priority to GB12757/57A priority Critical patent/GB828942A/en
Priority to US727831A priority patent/US3051248A/en
Priority to BE566884A priority patent/BE566884A/en
Priority to DEH33022A priority patent/DE1116568B/en
Priority to FR1205951D priority patent/FR1205951A/en
Priority to CH342861D priority patent/CH342861A/en
Publication of GB828942A publication Critical patent/GB828942A/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
    • B63H2003/088—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical fluid characterised by supply of fluid actuating medium to control element, e.g. of hydraulic fluid to actuator co-rotating with the propeller

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)
  • Relay Circuits (AREA)
  • Hydraulic Motors (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Reciprocating Pumps (AREA)

Abstract

828,942. Axial flow pumps; hydraulic turbines. HATCHER, E. C. April 14, 1958 [April 18, 1957; July 16, 1957], Nos. 12757/57 and 22515/57. Classes 110 (1) and 110 (3). [Also in Group XXXIII] In a pump or turbine having variable-pitch blades 2 (Fig. 1), an hydraulic motor for adjusting the pitch of the blades comprises a movable cylinder 13 operatively connected to each of the blades and a piston 10 movable in the cylinder and also operatively connected to each of the blades, the load for controlling the pitch of the blades being shared between the said cylinder and piston. The roots of the blades are bolted at 3 to discs 4 rotatable in bearings 5 secured to the hub 1. Each disc carries two crank-pins 6 (see also Fig. 2), one of which is connected to a crosshead 8 on the piston-rod 9 of the piston 10 and the other to a cross-head 11 carried by an extension 12 of the floating cylinder 13. A tube 17 in the rod 9 extends through the hollow propeller shaft 18 (see also Fig. 3) and is coupled at 27 to a link 42 of a linkage 39-42 through which a control lever 38 actuates a reversing valve 22 for admitting and exhausting pressure fluid through ports 23, 24 in communication with said motor. The port 24 communicates via port 26 in coupling 27, interior of tube 17, and port 30 in rod 9 with the space 7 on one side of the piston 10. Port 23 communicates via a space 21 around the tube 17, ducts 31, pipes 33 and ducts 34, 36, 37 with the space X on the other side. The link 42 serves as a feed-back device which centralizes the valve 22 in a predetermined position after piston 10 and cylinder 13 have moved to adjust the pitch due to movement of the control lever 38. Any tendency to change the established pitch moves tube 17 axially, hence lever 40 is rocked about its pivot 43, thus operating valve 22 to connect said tendency, the lever 40 acting as a differential device. A spring-loaded valve 54 in a duct 31 leading to a pipe 33 co-operates with a bore 57 to maintain the space Z full of oil, at a head determined by a gravity tank 51 when the pump 48 is not operating.
GB12757/57A 1957-04-18 1957-04-18 Improvements relating to propellers or the like having variable-pitch blades Expired GB828942A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB12757/57A GB828942A (en) 1957-04-18 1957-04-18 Improvements relating to propellers or the like having variable-pitch blades
US727831A US3051248A (en) 1957-04-18 1958-04-11 Propellers or the like having variable-pitch blades
BE566884A BE566884A (en) 1957-04-18 1958-04-17 IMPROVEMENTS RELATING TO PROPELLERS OR THE SAME WITH ADJUSTABLE PITCH BLADES.
DEH33022A DE1116568B (en) 1957-04-18 1958-04-17 Variable pitch propellers, especially for ships
FR1205951D FR1205951A (en) 1957-04-18 1958-04-18 Variable pitch propeller improvements
CH342861D CH342861A (en) 1957-04-18 1958-04-18 Variable pitch propeller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB12757/57A GB828942A (en) 1957-04-18 1957-04-18 Improvements relating to propellers or the like having variable-pitch blades

Publications (1)

Publication Number Publication Date
GB828942A true GB828942A (en) 1960-02-24

Family

ID=10010567

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12757/57A Expired GB828942A (en) 1957-04-18 1957-04-18 Improvements relating to propellers or the like having variable-pitch blades

Country Status (6)

Country Link
US (1) US3051248A (en)
BE (1) BE566884A (en)
CH (1) CH342861A (en)
DE (1) DE1116568B (en)
FR (1) FR1205951A (en)
GB (1) GB828942A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5019837B1 (en) * 1967-11-28 1975-07-10
CN112502840A (en) * 2020-12-18 2021-03-16 中船动力有限公司 Diesel engine fuel timing hydraulic adjusting device

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1202676B (en) * 1961-07-21 1965-10-07 Rudolf Mades Dr Ing Hydraulically adjustable rotating blades for the impeller of a current machine, in particular a variable pitch propeller for ship propulsion or a Kaplan turbine
DK111869B (en) * 1961-10-26 1968-10-14 N Liaaen Servo mechanism for turning the blades in a ship propeller.
DE1244605B (en) * 1961-10-26 1967-07-13 Nils Johannes Liaaen Servomechanism for adjusting the wing of a ship's propeller with adjustable pitch
US3247908A (en) * 1962-08-27 1966-04-26 Robook Nicolay Nikolaevich Adjustable blades hydraulic turbine runner
US3778187A (en) * 1971-04-13 1973-12-11 Propulsion Systems Inc Controllable pitch propellers for marine vessels
US3834157A (en) * 1973-02-05 1974-09-10 Avco Corp Spinner de-icing for gas turbine engines
GB1478674A (en) * 1974-07-03 1977-07-06 Lips Bv Feathering controllable pitch propeller
GB8723246D0 (en) * 1987-10-03 1987-11-04 Dowty Rotol Ltd Bladed rotor assemblies
SE533034C2 (en) * 2008-09-17 2010-06-15 Berg Propulsion Technology Propeller
DK177923B1 (en) * 2013-06-06 2015-01-12 Man Diesel & Turbo Deutschland Valve arrangement for a propeller shaft
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
CN110230571B (en) * 2019-07-02 2024-05-03 中国大唐集团新能源科学技术研究院有限公司 Independent variable pitch device of blade
CN113859496B (en) * 2021-09-30 2024-06-04 中国船舶重工集团公司第七0四研究所 Large-scale high load adjustable pitch propeller hub based on rigidity optimization

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH248141A (en) * 1944-12-02 1947-04-15 Sulzer Ag Servo motor for adjusting propeller blades.
FR947583A (en) * 1946-07-02 1949-07-06 Escher Wyss & Cie Const Mec Device for sealing the joints of the journals of propeller blades, blades of movable water wheels and pump wheels, at the points where the journals exit from a hub filled with a pressurized lubricant, in which they can rotate
CH279159A (en) * 1946-10-07 1951-11-15 Johannes Liaaen Nils Propeller adjustment device with servo motor for ships, pumps or turbines.
US2636714A (en) * 1946-12-11 1953-04-28 Baldwin Lima Hamilton Corp Dewatering device for adjustable blade rotary hydraulic machines
FR1013765A (en) * 1950-02-23 1952-08-04 Improvements to variable-pitch propeller systems, in particular for marine propellers
GB692403A (en) * 1950-11-16 1953-06-03 Nils Johannes Liaaen Marine propellers having variable pitch blades
US2686569A (en) * 1952-06-30 1954-08-17 Jr Tracey K Bruce Hydraulic controllable pitch propeller
US2754923A (en) * 1952-06-30 1956-07-17 John H Strandell Single crank controllable pitch propeller
US2693243A (en) * 1952-07-23 1954-11-02 John H Strandell Double crank controllable pitch propeller
FR1110184A (en) * 1953-10-26 1956-02-07 Karlstad Mekaniska Ab Hub for propellers, pumps or hydraulic turbines with variable-pitch blades
US2913057A (en) * 1955-06-20 1959-11-17 Baldwin Lima Hamilton Corp Operating mechanism for adjustable blade propeller

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5019837B1 (en) * 1967-11-28 1975-07-10
CN112502840A (en) * 2020-12-18 2021-03-16 中船动力有限公司 Diesel engine fuel timing hydraulic adjusting device
CN112502840B (en) * 2020-12-18 2022-09-16 中船动力有限公司 Diesel engine fuel timing hydraulic adjusting device

Also Published As

Publication number Publication date
US3051248A (en) 1962-08-28
BE566884A (en) 1960-05-14
CH342861A (en) 1959-11-30
FR1205951A (en) 1960-02-05
DE1116568B (en) 1961-11-02

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