Title (en)

CONTROLLABLE PITCH PROPELLER

Title (de)

VERSTELLPROPELLER

Title (fr)

HELICE À PAS VARIABLE

Publication

EP 3188965 B1 20190612 (DE)

Application

EP 15757285 A 20150902

Priority

• DE 102014012766 A 20140902
• EP 2015070074 W 20150902

Abstract (en)

[origin: WO2016034639A1] The invention relates to a variable-pitch propeller having a hub (18), at least one propeller blade (20) and a hydraulic adjusting device (22) for adjusting the pitch of the at least one propeller blade (20) by means of a hydraulic fluid (29). The invention is characterized in that the hydraulic fluid (29) is hydrophilic.

IPC 8 full level

B63H 3/08 (2006.01); F15B 21/06 (2006.01)

CPC (source: EP)

B63H 3/08 (2013.01); B63H 2003/084 (2013.01)

Citation (opposition)

Opponent : Schaffran Propeller + Service GmbH,

• DE 666385 C 19381018 - KARLSTAD MEKANISKA AB
• GB 2140096 A 19841121 - BELLEW WILFRED THOMAS
• US 3778187 A 19731211 - WENNBERG P
• US 3412808 A 19681126 - PARR EDWARD L
• EP 1902941 A2 20080326 - AIR FERTIGUNG TECHNOLOGIE GMBH [DE]
• "Controllable Pitch Propellers", 1 January 2007, article KEITH BROWNLIE: "Hydraulic systems", pages: 54 - 100-101, XP055704676
• ANONNMOUS: "Rules for Classification and Construction", GERMANISCHER LLOYD, 1 May 2013 (2013-05-01), pages 1 - 52, XP055705716, [retrieved on 20200617]
• ANONNMOUS: "Janus wasserhydraulik aggregate maximale flexibilitat- minimale kosten", WATER HYDRAULICS, 1 January 2012 (2012-01-01), pages 1 - 7, XP055705718, [retrieved on 20200617]
• ALAN HITCHCOX: "Water Hydraulics: Benefits and Limitations", HYDRAULICS & PNEUMATICS, 1 January 2012 (2012-01-01), XP055239566, Retrieved from the Internet <URL:http://hydraulicspneumatics.com/200/TechZone/HydraulicFluids/Article/False/6452/TechZone-HydraulicFluids> [retrieved on 20160108]
• WEBSEITENAUSZUG, 7 December 2013 (2013-12-07)
• WEBSEITENAUSZUG, 4 September 2018 (2018-09-04)
• C. LANG, ET AL: "3. pumpen und turbinen", HYDRAULIK VON ROHRSYSTEMEN, 1 April 2010 (2010-04-01), pages 58 - 63, XP055705722
• DEVA METAL: "wartungsfreie selbstschmierende Glei- tlager", FEDERAL MOGUL, 1 March 2000 (2000-03-01), XP055705723, [retrieved on 20200617]
• DIVA TEX: "sliding bearings, Maintenance-free, self-lu- bricating", FEDERAL MOGUL, 1 March 2000 (2000-03-01), pages 1 - 6, XP055705724, [retrieved on 20200617]

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

DE 102014012766 A1 20160303; DE 102014012766 B4 20170330; DE 202015009960 U1 20220207; DK 3188965 T3 20190902; EP 3188965 A1 20170712; EP 3188965 B1 20190612; ES 2744488 T3 20200225; PL 3188965 T3 20191231; WO 2016034639 A1 20160310

DOCDB simple family (application)

DE 102014012766 A 20140902; DE 202015009960 U 20150902; DK 15757285 T 20150902; EP 15757285 A 20150902; EP 2015070074 W 20150902; ES 15757285 T 20150902; PL 15757285 T 20150902