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Rudder driving system and method

A drive system and main drive technology, applied in the field of rudder drive system, can solve the problems of energy consumption, unfavorable propulsion performance, insufficient use of electric motors, etc., and achieve the effect of efficient operation

Inactive Publication Date: 2016-01-13
MACGREGOR HATLAPA GMBH& CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Accordingly, the corresponding hydraulic pumps run most of the time in idling mode and thus consume energy unnecessarily, since the electric motors driving the hydraulic pumps are not optimally used
Furthermore, although a constant high rudder movement speed is desired in maneuvering operation, it may be disadvantageous for the propulsion behavior in straight-ahead driving

Method used

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  • Rudder driving system and method

Examples

Experimental program
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Embodiment Construction

[0023] figure 1 A first embodiment of a rudder drive system 2 for steering a rudder device 4 of a ship according to the invention is schematically depicted in .

[0024] The rudder device 4 has a rudder or a rudder blade 6 which can be adjusted by a defined rotational angle about an axis of rotation 7 perpendicular to the plane of the rudder blade. The rudder or rudder blade is fastened to a beam 8 which can be swiveled by means of two cylindrical piston units 10 , 12 or 14 , 16 diametrically opposite each other at a corresponding angle of rotation. The cylindrical piston units 10 , 12 , 14 , 16 are fluidically connected to the working lines 18 , 20 , 22 , 24 respectively by means of connecting lines 26 , 28 between the rudder device 4 and the rudder drive system 2 .

[0025] The rudder drive system 2 has individually controllable electrohydraulic main drives 30 , 32 and an individually controllable electrohydraulic auxiliary drive 34 . Main drives 30 , 32 are designed redun...

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Abstract

Disclosed is a rudder driving system (2) for actuating a rudder assembly (4) in watercraft, comprising at least one rudder (6) and two redundant, independently operable electro-hydraulic main drives (30, 32) for positioning the rudder(s). The rudder driving system includes an electro-hydraulic secondary drive (34) for positioning the rudder(s), said secondary drive (34) being operable independently of the main drives and being equipped with an electric motor (70) having a frequency converter (72) for driving a hydraulic pump (68). Also disclosed is a method for operating a rudder driving system of said type.

Description

technical field [0001] The invention relates to a rudder drive system for steering a rudder gear of a ship according to the preamble of claim 1 and to a method for steering a rudder gear of a ship. Background technique [0002] The rudder gear of a ship is usually equipped with an electrohydraulic rudder drive system. Known rudder drive systems have two redundant electrohydraulic main drives of identical construction, which each comprise a hydraulic pump driven by an electric motor, a so-called motor-pump unit, the associated power and control electronics and hydraulic peripherals. According to the construction regulations of the rating agency, the motor pump unit is dimensioned such that the rudder can move within 28 seconds over an angular range of 65° (35° on one side to 35° on the other side). Here, depending on the vessel type, the rudder movement time or rudder movement speed must be achieved with only one or two motor-pump units. [0003] The hydraulic pump is dime...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B15/18B63H25/14
CPCB63H25/22B63H25/30
Inventor H·舍德尔
Owner MACGREGOR HATLAPA GMBH& CO KG
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