WO2005021373A1 - Helices a pas variable contrarotatives - Google Patents

Helices a pas variable contrarotatives Download PDF

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Publication number
WO2005021373A1
WO2005021373A1 PCT/HR2003/000044 HR0300044W WO2005021373A1 WO 2005021373 A1 WO2005021373 A1 WO 2005021373A1 HR 0300044 W HR0300044 W HR 0300044W WO 2005021373 A1 WO2005021373 A1 WO 2005021373A1
Authority
WO
WIPO (PCT)
Prior art keywords
propellers
hub
pitch control
pitch
control rod
Prior art date
Application number
PCT/HR2003/000044
Other languages
English (en)
Inventor
Nenad Fles
Original Assignee
Nenad Fles
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 Nenad Fles filed Critical Nenad Fles
Priority to AU2003267674A priority Critical patent/AU2003267674A1/en
Priority to PCT/HR2003/000044 priority patent/WO2005021373A1/fr
Publication of WO2005021373A1 publication Critical patent/WO2005021373A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H23/00—Transmitting power from propulsion power plant to propulsive elements
    • B63H23/02—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing
    • B63H23/06—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing for transmitting drive from a single propulsion power unit
    • 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
    • B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
    • B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
    • B63H5/08—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller
    • B63H5/10—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller of coaxial type, e.g. of counter-rotative type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
    • B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
    • B63H2005/075—Arrangements on vessels of propulsion elements directly acting on water of propellers using non-azimuthing podded propulsor units, i.e. podded units without means for rotation about a vertical axis, e.g. rigidly connected to the hull
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H23/00—Transmitting power from propulsion power plant to propulsive elements
    • B63H23/02—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing
    • B63H23/06—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing for transmitting drive from a single propulsion power unit
    • B63H2023/062—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing for transmitting drive from a single propulsion power unit comprising means for simultaneously driving two or more main transmitting elements, e.g. drive shafts
    • B63H2023/067—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing for transmitting drive from a single propulsion power unit comprising means for simultaneously driving two or more main transmitting elements, e.g. drive shafts the elements being formed by two or more coaxial shafts, e.g. counter-rotating shafts

Definitions

  • the Invention deals with marine propellers, in particular with contra rotating propellers featuring pitch control possibility.
  • BACKGROUND ART It is well known that propulsive efficiency of contra-rotating propellers exceeds those of two separated propellers at the same conditions and also considerably exceeds efficiency of single propeller.
  • majority of know contra- rotating arrangements is based on set of bevel gears engaged with two concentric shafts. When reversing the direction of rotation theese gears suffer due to considerable inertial forces caused by retardation and acceleration of the system during manoeuvring.
  • the proposed invention is supposed to be viable solution for application of medium speed four stroke engines for high efficiency propellers in contra rotating arrangement.
  • variable pitch propeller and contrarotating propellers former being well known as advantageous in terms of soft thrust reversing, engine load control and overload protection, possibility of maintaining constant RPM for an PTO generator drive and cleaner environment and later being known as propulsive device having proppeler efficiency far exceeding those inherent to single propeller, jet recuding the overall diameter to abt 80% of single propeller diameter.
  • pitch control concept of each one of the propellers put in contra rotating relation uses well known mechanic developed by any one of the major CPP systems manufacturers.
  • Pitch actuating servo unit can have cylinder arranged at a number of usual positions, such as, within gearbox, at gearbox front side, forward or aft of bevel gear within strut supported body of rotatable or transverse thrusters. on the shaft itself, or in propeller hub.
  • gearbox at gearbox front side
  • forward or aft of bevel gear within strut supported body of rotatable or transverse thrusters. on the shaft itself, or in propeller hub.
  • propeller hub integrated cylinder version is described within the scope of invention, although any one of the said arrangements can be used as well.
  • pitch controling rod (3) drives both yokes in the same longitudinal direction desired pitch change of the propeller blades of "inner” and “outer” propeller is attained by blade cranks (8) being fitted at opposite sides of the blades flanges (12), producing therefore blades (9) rotation in opposite directions as well.

Landscapes

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

Abstract

L'invention concerne une solution technique simple visant la commande de pas de pales de deux hélices marines contrarotatives. Le dispositif comprend deux arbres concentriques creux entraînés dans des sens de rotation opposés par un ensemble d'engrenages coniques (13). L'arbre 'interne' (10) intégrant une tige (3) de commande de pas, est bridé au moyeu (6) de l'hélice et l'arbre externe (11) au moyeu (7). Des étriers (1) et (2) sont fixés à la tige (3) de commande de pas. L'étrier (1) tourne avec le moyeu (6) et, grâce aux paliers axiaux, l'étrier (2) tourne librement dans le sens opposé. La translation de ladite tige (3) dans un sens actionne les brides (12) des pales par le biais des manetons (8) de pales de manière à tourner dans des sens opposés. La tige de commande de pas, actionnée par pression d'huile hydraulique sur le piston (14), un boîtier de distribution d'huile hydraulique et un dispositif de courant de retour sont intégrés dans des systèmes destinés normalement à des hélices CPP. L'invention concerne la combinaison du rendement élevé des hélices contrarotatives aux avantages bien connus des hélices à pas variable, notamment moteurs à inversion de poussée légère et moteurs non réversibles, commande de charge de moteur fiable et protection contre les surcharges, possibilité de maintenir un régime constant d'une génératrice de prise de force, et environnement plus propre.
PCT/HR2003/000044 2003-09-01 2003-09-01 Helices a pas variable contrarotatives WO2005021373A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2003267674A AU2003267674A1 (en) 2003-09-01 2003-09-01 Contra rotating variable pitch propellers
PCT/HR2003/000044 WO2005021373A1 (fr) 2003-09-01 2003-09-01 Helices a pas variable contrarotatives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/HR2003/000044 WO2005021373A1 (fr) 2003-09-01 2003-09-01 Helices a pas variable contrarotatives

Publications (1)

Publication Number Publication Date
WO2005021373A1 true WO2005021373A1 (fr) 2005-03-10

Family

ID=34259859

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/HR2003/000044 WO2005021373A1 (fr) 2003-09-01 2003-09-01 Helices a pas variable contrarotatives

Country Status (2)

Country Link
AU (1) AU2003267674A1 (fr)
WO (1) WO2005021373A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008032167A1 (fr) * 2006-09-15 2008-03-20 Calzoni S.R.L. Unité de propulsion comprenant deux hélices contrarotatives coaxiales
WO2009153124A3 (fr) * 2008-05-27 2010-11-18 Siemens Aktiengesellschaft Turbomachine pourvue de deux rotors
CN102216156A (zh) * 2008-09-17 2011-10-12 伯格推进技术公司 螺旋桨推进器
CN106043646A (zh) * 2016-07-05 2016-10-26 武汉船用机械有限责任公司 一种调距桨应急装置
CN114379751A (zh) * 2021-12-31 2022-04-22 武汉理工大学 一种可调节前桨与后桨间叶间距的对转桨推进装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109927868B (zh) * 2019-01-31 2021-08-10 武汉船用机械有限责任公司 调距桨的固定结构

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR949767A (fr) * 1940-02-07 1949-09-08 Rotol Ltd Dispositif perfectionné d'hélices pour la propulsion des aéronefs
DE1037908B (de) * 1956-12-10 1958-08-28 Schiffbau Projekt Und Konstruk Z-Getriebe fuer den Propellerantrieb von Wasserfahrzeugen
FR2083882A5 (fr) * 1970-03-11 1971-12-17 Rostock Dieselmotoren
US5480330A (en) * 1994-10-04 1996-01-02 Outboard Marine Corporation Marine propulsion pump with two counter rotating impellers
DE20104569U1 (de) * 2001-03-16 2001-11-22 Schottel GmbH & Co.KG, 56322 Spay Wasserstrahlantrieb für Wasserfahrzeuge mit zwei gleichachsig angeordneten Propellern

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR949767A (fr) * 1940-02-07 1949-09-08 Rotol Ltd Dispositif perfectionné d'hélices pour la propulsion des aéronefs
DE1037908B (de) * 1956-12-10 1958-08-28 Schiffbau Projekt Und Konstruk Z-Getriebe fuer den Propellerantrieb von Wasserfahrzeugen
FR2083882A5 (fr) * 1970-03-11 1971-12-17 Rostock Dieselmotoren
US5480330A (en) * 1994-10-04 1996-01-02 Outboard Marine Corporation Marine propulsion pump with two counter rotating impellers
DE20104569U1 (de) * 2001-03-16 2001-11-22 Schottel GmbH & Co.KG, 56322 Spay Wasserstrahlantrieb für Wasserfahrzeuge mit zwei gleichachsig angeordneten Propellern

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008032167A1 (fr) * 2006-09-15 2008-03-20 Calzoni S.R.L. Unité de propulsion comprenant deux hélices contrarotatives coaxiales
WO2009153124A3 (fr) * 2008-05-27 2010-11-18 Siemens Aktiengesellschaft Turbomachine pourvue de deux rotors
CN102216156A (zh) * 2008-09-17 2011-10-12 伯格推进技术公司 螺旋桨推进器
CN102216156B (zh) * 2008-09-17 2014-10-01 伯格推进技术公司 螺旋桨推进器
CN106043646A (zh) * 2016-07-05 2016-10-26 武汉船用机械有限责任公司 一种调距桨应急装置
CN114379751A (zh) * 2021-12-31 2022-04-22 武汉理工大学 一种可调节前桨与后桨间叶间距的对转桨推进装置
CN114379751B (zh) * 2021-12-31 2023-03-14 武汉理工大学 一种可调节前桨与后桨间叶间距的对转桨推进装置

Also Published As

Publication number Publication date
AU2003267674A1 (en) 2005-03-16

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