Steering arrangement for a ship propelled by waterjet

Details Steering arrangement for a ship propelled by waterjet Steering arrangement for a ship propelled by waterjet

2006-04-18

2006-04-18

Avila, Stephen (Department: 3617)

Marine propulsion

Jet drive

Direction control for fluid jet

C440S043000

Reexamination Certificate

active

07029343

ABSTRACT:
The present invention relates to a steering arrangement for ships propelled by water jet, comprising a steering device (6) that is pivotal about an essentially vertical shaft (5) having a first center line (C1), at least one hydraulic cylinder (2; 3) for turning said steering device (6), which hydraulic cylinder is directly or indirectly articulately connected to the ship's body at one of its ends (2B;3B), a turning device (4) connected to said shaft (5), for attachment to a second end (2A;3A) of said hydraulic cylinder at a distance from said shaft (5), a reversing device (7) arranged in connection with said steering device (6) about an essentially horizontal shaft (12), an additional hydraulic cylinder (9) arranged to act on the reversing device (7), the additional hydraulic cylinder (9) following the movement of the steering device (6), characterized in that all the hydraulic cylinders (2,3,9) are arranged within a sheltered space (1) located above the extension of said vertical shaft (5), which space (1) is accessible for maintenance from the inside of the ship, and in that the arranging of said hydraulic cylinder (9) at the turning device (4) in relation to the steering device (6) is arranged such that the relative position of the reversing device (7) is uninfluenced by the relative position of the steering device (6).

REFERENCES:
patent: 3680315 (1972-08-01), Aschauer et al.
patent: 3807346 (1974-04-01), Delfeld
patent: 4474561 (1984-10-01), Haglund
patent: 5507672 (1996-04-01), Imaeda
patent: 6071156 (2000-06-01), Platzer et al.
patent: 8102714-6 (1982-05-01), None
Copy of International Search Report.
Copy of International Preliminary Examination Report.

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