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A fin propulsion apparatus

A technology of propulsion device and fins, which is applied in the field of propulsion system and propulsion device, can solve the problems of the complexity of the propulsion mechanism without the propeller, and achieve the effect of simple structure and optimized propulsion system.

Inactive Publication Date: 2010-12-08
A P MOLLER AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Although fin propulsion systems such as that proposed by U.S. Patent No. 5401196 (TRIANTAFYLLOU) have been proposed to significantly increase efficiency, such systems have not been widely used commercially for propulsion, for example due to the complexity of the propulsion mechanism propellers, especially propellers for seagoing vessels

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  • A fin propulsion apparatus
  • A fin propulsion apparatus
  • A fin propulsion apparatus

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Embodiment Construction

[0034] figure 1 A schematic side view of a vessel 1 is shown having fins 2 for providing propulsion. Such fins are known for use in propulsion systems in boats or any other sea-going vessels, but also for other propulsion purposes, a general description of fin propulsion systems is disclosed inter alia in the abstract of US Patent No. 5401196 (TRIANTAFYLLOU) , which is cited in this paper.

[0035] figure 2 expressed figure 1A top view of the vessel of , wherein two sets of three fins 2 are arranged for providing propulsion to the vessel 1 . The number of fins 2 and the number of groups of fins 2 can be varied without departing from the invention in order to suit the propulsion required for a particular boat, but as shown the fins are preferably arranged in pairs, Operate in opposite phase to counteract lateral forces acting on the hull during propulsion.

[0036] According to the general principle of fin propellers such as described in US Pat. 1 through the opening 7 (...

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Abstract

A propulsion apparatus is provided for propulsion in a fluid, comprising at least one propulsion fin being fixed to a fin axle, and means for driving the propulsion fin comprising a crankshaft, a pitching mechanism for rotating the propulsion fin around the axis of the fin axle, and a heave mechanism for translating the propulsion fin in a substantially transverse direction with respect to the axis of the fin axle, and where the crankshaft is driving the pitching mechanism and the heave mechanism. A simple, reliable and efficient construction is obtained by having both the heave and the pitch mechanism mounted on a single crank on the crankshaft, or to separate cranks having substantially the same radius and angular position with respect to the axis of rotation of the crankshaft.

Description

technical field [0001] The present invention relates to a propulsion system for sea vessels, wherein the means for propulsion comprise flapping or oscillating foils or fins. [0002] According to one aspect, the invention relates to a propulsion device arranged in the hull of a sea vessel. [0003] The device includes at least one laterally translating propulsion fin fixed to the fin shaft. The means for driving the fin includes: a crankshaft; a pitching mechanism for rotating the fin about the axis of the fin shaft; and a heave mechanism for causing the fin to rotate in a substantially transverse direction Translate in the direction of the fin axis and the axis of the boat. Background technique [0004] Propulsion systems have been used in particular to propel seagoing vessels over the years and the majority of propulsion systems in use today are rotary propeller propellers. Although the rotating propeller propulsion system offers a very reliable and simple structure, it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63H1/36
CPCB63H1/36
Inventor J·霍弗特韦尔梅登
Owner A P MOLLER AS