EP 4006359 A1 20220601 - SHIP STEERING MACHINE
Title (en)
SHIP STEERING MACHINE
Title (de)
SCHIFFSSTEUERUNGSMASCHINE
Title (fr)
MACHINE DE DIRECTION DE NAVIRE
Publication
Application
Priority
- JP 2020026351 W 20200706
- JP 2019136746 A 20190725
Abstract (en)
A ship steering gear (1) according to one embodiment includes: a hydraulic actuator (3) that rotates a rudder stock (22) coupled to a rudder plate (21); two axial piston hydraulic pumps (4) that are connected to the hydraulic actuator (3) such that a closed circuit is formed between the hydraulic actuator (3) and the hydraulic pumps (4); and two electric motors (5) that drive the hydraulic pumps (4). The ship steering gear (1) further includes: first detectors (61, 62) that detect electric power, or electric currents, supplied to the electric motors (5); a second detector (63) that detects a rudder angle θ that is an angle of the rudder plate (21) relative to a center line (10) of a hull; and a torque calculator (7) that calculates a torque applied to the rudder stock (22) based on the electric power, or the electric currents, detected by the first detectors (61, 62) and the rudder angle θ detected by the second detector (63).
IPC 8 full level
F15B 11/028 (2006.01); B63H 25/30 (2006.01); F15B 11/08 (2006.01)
CPC (source: EP KR)
B63H 25/30 (2013.01 - EP KR); F15B 11/028 (2013.01 - EP KR); F15B 11/08 (2013.01 - KR); F15B 2211/20515 (2013.01 - EP); F15B 2211/20561 (2013.01 - EP); F15B 2211/20576 (2013.01 - EP); F15B 2211/27 (2013.01 - EP); F15B 2211/633 (2013.01 - EP); F15B 2211/6336 (2013.01 - EP); F15B 2211/76 (2013.01 - EP)
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 4006359 A1 20220601; EP 4006359 A4 20230823; JP 2021020495 A 20210218; JP 7423213 B2 20240129; KR 20220031716 A 20220311; WO 2021014950 A1 20210128
DOCDB simple family (application)
EP 20844319 A 20200706; JP 2019136746 A 20190725; JP 2020026351 W 20200706; KR 20227004906 A 20200706