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Retractable vertical-axis propeller device

a vertical-axis propeller and collapsible technology, which is applied in the direction of propulsive elements, water-acting propulsive elements, vessel construction, etc., can solve the problems of not being able to prevent the vessel from going adrift without anchoring, and not being able to achieve the above-mentioned properties in the case of horizontal-axis propeller stabilization, etc., to achieve the effect of improving the characteristics of the marine vessel

Inactive Publication Date: 2019-02-28
ULGEN MEHMET NEVRES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The goal of this invention is to improve the performance and efficiency of a marine vessel with a vertical drive propeller in the water. The invention aims to achieve this at a low cost.

Problems solved by technology

However, it is difficult to have some of the above mentioned properties in vessels with horizontal-axis propeller while some are impossible.
For example, stabilization against rolling of a vessel with a horizontal-axis propeller can only be achieved with gyro-devices.
Similarly, it is not possible to prevent vessel from going adrift without anchoring.
On the other hand, when vertical-axis propellers are designed to meet the necessary thrust required for the desired accelerated or normal cruising of the vessel, they are relatively costly and their size generally are increased.

Method used

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  • Retractable vertical-axis propeller device
  • Retractable vertical-axis propeller device
  • Retractable vertical-axis propeller device

Examples

Experimental program
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Embodiment Construction

[0065]The device according to the invention comprises in general a vertical-axis propeller (10) as known in the art, a sliding housing (30) fixed to an opening in the lower portion of the marine vessel, a slider (50) that is slid into the said sliding housing (30) and associated with the vertical-axis propeller (10), and a driving means (70) for driving the vertical-axis propeller (10) in a linear direction along its axis.

[0066]As known from the art, the vertical-axis propeller (10) comprises a propeller hub (11), a plurality of propeller blades (14) extending downwards from its lower surface vertically and a plurality of coupling supports (16) extending upwards from the upper surface (12) or periphery of the propeller hub (11). The propeller gasket holes (13) are provided around the cylindrical propeller hub (11) for accommodating a plurality of circular propeller gaskets (15). Since the vertical-axis propeller (10) is known in the art, the driving motor and mechanisms driving the ...

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Abstract

The present invention relates to a device for optional activation of a vertical-axis propeller to be configured on the lower surface of a marine vessel, said device comprises a vertical-axis propeller; a sliding means associated with the lower surface of the marine vessel and sliding the vertical-axis propeller; at least one slider that is associated with the vertical-axis propeller and is in sliding relation with the sliding means; and at least one driving means for driving the vertical-axis propeller in upwards and downwards in the sliding direction.

Description

TECHNICAL FIELD[0001]The present invention relates to a collapsible device for a retractable or optionally activated vertical-axis (cycloidal) propeller being suitable for use in various vessels, in particular motor yachts.BACKGROUND OF INVENTION[0002]In respect to direction of montage on a marine vessel, propellers can mainly be categorized into two groups, those with horizontal-axis (along the fore-aft direction) and those with vertical axis. Blades on vertical-axis propellers, also known as vertical-axis (cycloidal) propellers, make a full rotation around the rotation axis while they rotate partially around their own axes. By virtue of this property, vertical axis propellers provide many functional advantages compared to conventional horizontal-axis propellers. For example, a marine vessel thrusted with a vertical-axis propeller has a 360-degree maneuvering capacity during normal cruising. On the other hand, it is possible to carry out a smooth parallel docking to the landing pla...

Claims

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Application Information

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IPC IPC(8): B63H5/03B63H1/04
CPCB63H5/03B63H1/04B63H1/28F16D41/185B63H2001/283B63H2005/106B63H1/10
Inventor ULGEN, MEHMET NEVRES
Owner ULGEN MEHMET NEVRES