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High-velocity rudder

A rudder blade and rudder stock technology, which is applied to steering gear, steering with rudder, ships, etc., and can solve problems such as damage to rudder, rudder stock and steering gear, speed loss, etc.

Inactive Publication Date: 2003-03-05
NAVION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This can lead to damage to the rudder, rudder stock and steering servo
A loss of speed can occur when a vessel with an existing rudder suddenly changes course at high speed

Method used

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  • High-velocity rudder
  • High-velocity rudder
  • High-velocity rudder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] figure 1 The middle rudder blade is indicated with 3, which has a corresponding rudder stock 8. The hull 1 of the watercraft has a hull recess 12 in which the rudder can be retracted by means of a telescopic rudder stock 8 . The rudder stock 8 and thus the rudder 3 do not rotate when the rudder is retracted into the recess 12 of the hull.

[0021] figure 2 Shows a longitudinal section of the hull 1, steering gear 10, rudder stock 8 and hull recess 12, and a front view of a rudder blade 3 with generally vertical journal bearing fixed forward and aft portions Rudder hinges or wings 5 ​​and 6.

[0022] image 3 A horizontal section of the rudder is shown with the rudder flaps in the starboard "lift" position, with the front 5A and aft rudder flaps 6A turned to the port side. The middle direction of the tail rudder flap 6 is shown in the figure. The tail rudder hinge is installed to be rotatable relative to the shaft part 6 ( Figure 5 ). This structure will redire...

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PUM

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Abstract

A rudder, especially for water vessels, which in its one end is connected with the vessel's hull (1) and comprising a main rudder blade (3) and rudder flaps (5, 6) arranged to be turnable with respect to the main rudder blade (3). The new traits of the invention are that the main rudder blade (3) is arranged to be in a fixedly anchored centre position with respect to the hull (1), and having two or more rudder flaps (5, 6) mounted leading and trailing on the main rudder blade (3) and arranged to steering the vessel at high speeds, and that the main rudder blade (3) is arranged releasable from its fixedly anchored center position, and arranged to be turnable as a whole in the usual manner, especially for steering the vessel at lower speeds.

Description

technical field [0001] The present invention relates to a rudder for a watercraft. This type of rudder comprises a main body and one or more rudder blades, which are arranged to be rotatable relative to the main body. Background technique [0002] At low speeds, the rudder must be of a certain size and angle of attack to effectively control the boat. However, such a rudder may not have to be very large for higher speeds, as this would cause unnecessary drag in sea water, with consequent loss of speed and unnecessarily high fuel consumption. Existing rudders tend to increase their effect almost proportional to speed. At high speeds, a greater force acts on the rudder, which is turned away from the direction of motion of the boat. This can result in damage to the rudder, rudder stock and steering gear. Vessels with existing rudders experience a loss of speed when they suddenly change course at high speeds. [0003] Several devices are known, including rudders and rudders o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63H25/38
CPCB63H25/381B63H25/38
Inventor 阿里尔·K·萨穆埃尔森
Owner NAVION