Abstract:
Arrangement for steering and supplying propulsion power to a contra rotating propellers (CRP) propulsion system in a marine vessel, which arrangement comprises a first propeller (44) driven by a rotating power unit (40) and a second propeller (48) driven by an AC motor (50) whereby the second propeller (48) is rotated in the opposite direction as the first propeller (44), and an AC generator (42) coupled to mechanical output shaft of the power unit (40) and driven by a rotating power unit, whereby the AC generator (42) is electrically connected to the AC motor (50). According the arrangement the AC motor (50) and the AC generator (42) have the same electrical frequency, another electrical power source (60,61,62) is electrically connectable to the AC motor (50) parallel to the AC generator (42), the shaft (47) of the second propeller is mounted rotatable in a support structure (16,24) which is attached to a hull of the marine vessel (2), and a rudder (10), which is supported in a manner allowing pivotal movement of the rudder (10) relative to the support structure (16, 24).
Abstract:
Eine schwimmende oder tauchende Einrichtung (1), insbesondere ein Über- oder Unterwasserschiff mit Brennstoffzellen (10) zur Erzeugung elektrischer Energie für elektrische Verbraucher (11, 13) an Bord der Einrichtung (1), wobei die Brennstoffzellen mit Wasserstoff als Brennstoff betreibbar sind, weist erfindungsgemäß einen Elektrolyseur (20) zur Erzeugung von Wasserstoff für die Brennstoffzellen (10) durch eine Elektrolyse von Wasser unter Verwendung von elektrischer Energie sowie einen WasserstoffSpeicher (21) zur Speicherung des von dem Elektrolyseur (20) erzeugten Wasserstoffs vor dessen Zufuhr zu den Brennstoffzellen (10) auf. Hierdurch ist eine emissionsfreie und geräuscharme Versorgung der Brennstoffzellen mit Wasserstoff, wenn benötigt auch mit Sauerstoff, auch unter außenluftunabhängigen Betriebsbedingungen direkt an Bord der schwimmenden oder tauchenden Einrichtung möglich, wobei der Platzbedarf gering ist.
Abstract:
Arrangement for supplying electric power to a propulsion system of a marine vessel, which comprises a propeller motor (8), which is connected to an ac generator (4) and the ac generator (4)supplies electric energy to the propeller motor (8).The ac generator is rotated by a rotating power unit (2).A frequency converter (26) is connectable parallel to the ac generator (4) and the frequency converter (26) supplies electric power from a second power unit (16,18).
Abstract:
본 발명은 액화연료가스 주 추진 엔진과 액화연료가스 발전 엔진을 선택적으로 구동하는 선박에 관한 것이다. 상기 선박은 선박의 추진 동력을 얻기 위해 액화연료가스를 연료가스로 사용하는 고압가스 분사엔진; 전기를 생산하기 위해 액화연료가스를 연료가스로 사용하는 발전 엔진; 선박을 추진하기 위한 추진체; 를 포함하고, 상기 고압가스 분사엔진 및 발전 엔진은 선택적으로 상기 추진체에 동력 연결되어 선박의 추진 동력을 얻을 수 있도록 구성된 것을 특징으로 한다. 이러한 구성에 따르면, 선박이 액화연료가스 주 추진 엔진과 액화연료가스 발전 엔진을 구비하고, 저출력에서는 액화연료가스 발전 엔진에 의해 추진 동력을 얻음으로써, 연료비를 절약하고 환경 문제를 해결할 수 있다.
Abstract:
The invention relates to a drive arrangement (1) for watercraft, comprising a propeller (2), a drive (3) for driving the propeller (2), and a magnetic coupling (4) arranged between the propeller (2) and the drive (3), said magnetic coupling (4) comprising an outer magnetic element (7), an inner magnetic element (9) and a slitted receiver (11), the slitted receiver (1) being arranged between the inner magnetic element (9) and the outer magnetic element (7).
Abstract:
A propulsion device for a marine vessel, the propulsion device comprising an electrical machine (205) with integral magnetic gearing, which comprises three members, namely a first or inner rotor (102) comprising a first plurality of permanent magnets (106), a second rotor (107) in the form of a plurality of ferromagnetic pole pieces (108), and a stator (116) which is associated with a plurality of 3-phase windings (302) and to the periphery of which a plurality of second permanent magnets (110) are fixed. The magnetic pole piece rotor (107) is connected to a drive shaft (300) provided with a propulsion means (201) for providing propulsion to the marine vessel. The first or inner rotor (102) is free to rotate about the drive shaft (300). The pole pieces (108) of the second rotor (107) are arranged to magnetically couple the permanent magnets (106) of the first or inner rotor (102) to the second permanent magnets (110) on the stator (116).
Abstract:
In a ship (1) having a first propeller (5) and a second propeller (6), which are arranged one behind the other in the direction of travel (4) of the ship (3), an electric motor (15) for driving the first propeller (5) and a drive unit (8) for driving the second propeller (6), the drive unit (8) being arranged inside the ship (3) and being connected to the second propeller (6) via a propeller shaft (7) in order to drive said propeller (6), and having an opening (9) in the ship's hull (10), via which the propeller shaft (7) is led out of the ship (1), the fail safety can be increased by arranging the electric motor (15) outside the ship (3) between the opening (9) in the hull (10) of the ship (1) and the second propeller (6), and by providing said electric motor (15) with an opening (14) through which the propeller shaft (7) for driving the second propeller (6) runs.