GB1310839A - Device for varying the pitch of propeller blades - Google Patents

Device for varying the pitch of propeller blades

Info

Publication number
GB1310839A
GB1310839A GB2726070A GB2726070A GB1310839A GB 1310839 A GB1310839 A GB 1310839A GB 2726070 A GB2726070 A GB 2726070A GB 2726070 A GB2726070 A GB 2726070A GB 1310839 A GB1310839 A GB 1310839A
Authority
GB
United Kingdom
Prior art keywords
pitch
chamber
piston
pressure
closure member
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
GB2726070A
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.)
S MAN INGF AB
Original Assignee
S MAN INGF AB
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 S MAN INGF AB filed Critical S MAN INGF AB
Publication of GB1310839A publication Critical patent/GB1310839A/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)
  • Actuator (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Hydraulic Motors (AREA)

Abstract

1310839. Variable pitch propellers INGENJORSFIRMAN S MAN AB 5 June 1970 [6 June 1969] 27360/70 Heading B7V A fluid pressure servo-motor device for adjusting the pitch of a marine propeller comprises an output member 10 and closure member 20 carried by an output piston 11, a spring loaded piston seat 19 movable in cylinder 31 to vary the flow of fluid through closure member 20 to and from chamber 13 in response to changes in pressure in chamber 18<SP>1</SP>, and a manually actuated control valve 40 for regulating the pressure in chamber 18<SP>1</SP> and thereby the propeller's pitch. Valve 40 (Fig. 3, not shown) comprises a floating piston closure member (55) subjected to the differential force of a pair of springs (56, 57) one of which (57) is adjustable by a screw (60) operated by hand control 59. A pitch graduated pressure gauge 41 is connected to chamber 18. As shown piston 11 is spring loaded but in a modification (Fig. 4, not shown) spring 14 is replaced by a fluid loading.
GB2726070A 1969-06-06 1970-06-05 Device for varying the pitch of propeller blades Expired GB1310839A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8105/69A SE321160B (en) 1969-06-06 1969-06-06

Publications (1)

Publication Number Publication Date
GB1310839A true GB1310839A (en) 1973-03-21

Family

ID=20273156

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2726070A Expired GB1310839A (en) 1969-06-06 1970-06-05 Device for varying the pitch of propeller blades

Country Status (7)

Country Link
US (1) US3711221A (en)
BE (1) BE751534A (en)
DE (1) DE2027824A1 (en)
FR (1) FR2050019A5 (en)
GB (1) GB1310839A (en)
NL (1) NL7008257A (en)
SE (1) SE321160B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4020781A (en) * 1974-12-04 1977-05-03 Newage Engineers Limited Marine propulsion systems with variable-pitch screw propellers

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3819296A (en) * 1972-03-06 1974-06-25 Mitsubishi Heavy Ind Ltd Control for hydraulic machine having adjustable blades
GB1478674A (en) * 1974-07-03 1977-07-06 Lips Bv Feathering controllable pitch propeller
DE2433727A1 (en) * 1974-07-13 1976-01-29 Gea Luftkuehler Happel Gmbh AXIAL REGULATING FAN
GB8609554D0 (en) * 1986-04-18 1986-05-21 Dowty Rotol Ltd Bladed rotor assembly
GB8723246D0 (en) * 1987-10-03 1987-11-04 Dowty Rotol Ltd Bladed rotor assemblies
US6261062B1 (en) * 2000-01-17 2001-07-17 Brunswick Corporation Actuation system for a controllable pitch propeller
EP2052965B1 (en) * 2008-01-11 2013-05-15 MT-Propeller Entwicklung GmbH Hydraulic adjustable propeller
JP5438979B2 (en) * 2009-01-22 2014-03-12 三菱重工業株式会社 Cylinder drive

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2244770A (en) * 1937-01-15 1941-06-10 Englesson John Elov Operating device for propellers, turbine wheels, and pump wheels having rotatable blades
US2255920A (en) * 1937-02-01 1941-09-16 Englesson John Elov Ship propeller having rotatable blades
US2456361A (en) * 1943-08-14 1948-12-14 Sulzer Ag Device for adjusting the blades of ships' propellers
FR1083482A (en) * 1953-04-17 1955-01-10 Helice Marine Ratier Forges & Control device, in particular of the pitch of a propeller
US2959156A (en) * 1956-08-03 1960-11-08 Sarl Ratier Aviat Marine Hydraulic servo-device for controlling linearly or rotatably movable members, with indication of the position thereof
FR1260746A (en) * 1960-03-31 1961-05-12 Moteurs Baudouin Soc D Hydraulic reversible marine propeller control
CH410822A (en) * 1963-04-29 1966-03-31 Karlstad Mekaniska Ab Adjustment device on turbines, pumps or propellers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4020781A (en) * 1974-12-04 1977-05-03 Newage Engineers Limited Marine propulsion systems with variable-pitch screw propellers

Also Published As

Publication number Publication date
BE751534A (en) 1970-11-16
US3711221A (en) 1973-01-16
DE2027824A1 (en) 1970-12-17
NL7008257A (en) 1970-12-08
FR2050019A5 (en) 1971-03-26
SE321160B (en) 1970-02-23

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee