[go: up one dir, main page]

GB1293206A - A variable pitch propeller system - Google Patents

A variable pitch propeller system

Info

Publication number
GB1293206A
GB1293206A GB04426/70D GB1442670D GB1293206A GB 1293206 A GB1293206 A GB 1293206A GB 04426/70 D GB04426/70 D GB 04426/70D GB 1442670 D GB1442670 D GB 1442670D GB 1293206 A GB1293206 A GB 1293206A
Authority
GB
United Kingdom
Prior art keywords
piston
supply
servomotor
emergency
blades
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
GB04426/70D
Inventor
A M Liaaen
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.)
AM Liaaen AS
Original Assignee
AM Liaaen AS
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 AM Liaaen AS filed Critical AM Liaaen AS
Publication of GB1293206A publication Critical patent/GB1293206A/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)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

1293206 Variable pitch propellers A M LIAAEN AS 25 March 1970 [28 March 1969] 14426/70 Heading B7V A variable pitch propeller has blades 2, Fig. 2, controlled by a servomotor piston 5 in a cylinder 4 to which pressure fluid is supplied from slide valve-controlled passages 12, 13, Fig. 3, via passages in the propeller shaft 6, an emergency fluid pressure supply being connectable to the servomotor for holding the blades 2 in their forward propulsion setting when the normal fluid pressure supply fails. The emergency supply is connected to inlet 291, after removal of pin 292, and acts to move a piston 26 to the left, so that its hollow piston-rod 27 closes normal supply port 13. Spigot 251 prevents the emergency supply from communicating with servomotor supply conduit 15 until port 13 has been closed. The emergency supply moves servomotor piston 5 to the right to an extreme position in which a chamfered portion of the piston engages a lip of seal 30 to prevent leakage and return movement of the piston, the emergency supply then being cut off and pin 292 replaced. When the normal fluid supply is restored, pin 292 is removed and the normal fluid supply is connected to port 13 to act, via grooves 222, on step 273 of piston-rod 27 to move the piston 26 and piston-rod 27 to the right. An alternative arrangement is described wherein piston 5 moves to the left to move blades 2 into their forward propulsion setting, Figs. 5 to 8 (not shown).
GB04426/70D 1969-03-28 1970-03-25 A variable pitch propeller system Expired GB1293206A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO1311/69A NO123595B (en) 1969-03-28 1969-03-28

Publications (1)

Publication Number Publication Date
GB1293206A true GB1293206A (en) 1972-10-18

Family

ID=19878116

Family Applications (1)

Application Number Title Priority Date Filing Date
GB04426/70D Expired GB1293206A (en) 1969-03-28 1970-03-25 A variable pitch propeller system

Country Status (11)

Country Link
US (1) US3640644A (en)
JP (1) JPS4940184B1 (en)
DE (1) DE2012575C2 (en)
DK (1) DK141481B (en)
FI (1) FI48331C (en)
FR (1) FR2039916A5 (en)
GB (1) GB1293206A (en)
NL (1) NL166891C (en)
NO (1) NO123595B (en)
PL (1) PL71504B1 (en)
SE (1) SE376210B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111486331A (en) * 2020-04-14 2020-08-04 南京高精船用设备有限公司 Forced lubrication cooling's epaxial oil distributor structure

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1384383A (en) * 1971-08-26 1975-02-19 Lips Nv Variable pitch propeller with emergency control
US4352634A (en) * 1980-03-17 1982-10-05 United Technologies Corporation Wind turbine blade pitch control system
DE3415428A1 (en) * 1984-04-25 1985-10-31 Liebherr-Aero-Technik Gmbh, 8998 Lindenberg Adjusting drive for adjustment of the setting angle of one or more rotor blades
US4671737A (en) * 1984-12-26 1987-06-09 Sundstrand Corporation Blade pitch changing mechanism
US4781533A (en) * 1986-09-30 1988-11-01 Kamewa Ab Control system for propeller with controllable pitch
GB8723246D0 (en) * 1987-10-03 1987-11-04 Dowty Rotol Ltd Bladed rotor assemblies
SE503426C2 (en) * 1993-12-17 1996-06-10 Motala Verkstad Ab Device for propeller drives for marine vehicles
EP2444316B1 (en) * 2010-10-25 2016-02-17 MT-Propeller Entwicklung GmbH Hydraulic variable pitch propeller
CN109163890B (en) * 2018-07-10 2020-12-25 武汉船用机械有限责任公司 Method for monitoring working state of controllable pitch propeller

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD63709A (en) *
US2312686A (en) * 1941-09-24 1943-03-02 John Eley Jr Emergency cut-over valve
US2693243A (en) * 1952-07-23 1954-11-02 John H Strandell Double crank controllable pitch propeller
US2802453A (en) * 1953-08-13 1957-08-13 Lockheed Aircraft Corp Hydraulic transfer valve
GB785766A (en) * 1955-05-05 1957-11-06 Rotol Ltd Improvements in hydraulic variable pitch propellers
US2830668A (en) * 1956-11-01 1958-04-15 United Aircraft Corp Hydraulic system for an aeronautical propeller
GB901800A (en) * 1959-09-09 1962-07-25 Hindmarch Thomas Improvements in or relating to hydraulically operated variable pitch marine screw propellers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111486331A (en) * 2020-04-14 2020-08-04 南京高精船用设备有限公司 Forced lubrication cooling's epaxial oil distributor structure
CN111486331B (en) * 2020-04-14 2021-08-06 南京高精船用设备有限公司 Forced lubrication cooling's epaxial oil distributor structure

Also Published As

Publication number Publication date
SE376210B (en) 1975-05-12
DE2012575C2 (en) 1983-11-17
PL71504B1 (en) 1974-06-29
NL166891C (en) 1981-10-15
US3640644A (en) 1972-02-08
JPS4940184B1 (en) 1974-10-31
DK141481B (en) 1980-03-24
FI48331C (en) 1974-09-10
NL7004405A (en) 1970-09-30
DK141481C (en) 1980-09-29
NO123595B (en) 1971-12-13
NL166891B (en) 1981-05-15
FI48331B (en) 1974-05-31
DE2012575A1 (en) 1971-02-11
FR2039916A5 (en) 1971-01-15

Similar Documents

Publication Publication Date Title
GB1478674A (en) Feathering controllable pitch propeller
GB1293206A (en) A variable pitch propeller system
GB1384383A (en) Variable pitch propeller with emergency control
GB1291586A (en) Propulsive jet nozzle assembly
GB1248062A (en) Improvements in or relating to ship's propellers
GB1174345A (en) Combined Propeller Pitch Lock and Low Pitch Stop System.
US2588166A (en) Variable pitch propeller
GB1244976A (en) Hydraulic control apparatus and practical application thereof
GB984126A (en) Servo-mechanism for variable pitch propellers
GB1282829A (en) Conversion of a variable delivery pump to fixed delivery pump
US2992632A (en) Hydraulic remote control systems
GB1041353A (en) Aircraft propellor
GB1456557A (en) Radial piston hydraulic machine
GB1241314A (en) Controllable pitch propellers
GB1347855A (en) Control systems for vehicle propulsion units
GB704809A (en) Improvements in or relating to variable pitch propeller systems
GB1386652A (en) Hydraulic servodrives
GB1464056A (en) Fluid pressure actuator
GB1374523A (en) Electrohydraulic stepping motor
GB909764A (en) Fluid-pressure-operated motors
GB1341473A (en) Controllable pitch propeller
GB706338A (en) Improvements in or relating to hydraulic pitch control mechanism for propellers
GB707814A (en) Improvements in or relating to thrust-transmitting mechanisms applicable e.g. to variable pitch propellers
GB766621A (en) Improvements in or relating to controllable pitch propellers
GB850124A (en) Improvements relating to fluid-pressure reciprocatory motors

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee