Propeller for vessels

A technology for propellers and ships, applied in the directions of rotating propellers and rotary propellers, etc., can solve the problems of increasing the structural complexity and prolonging the time of assembly and disassembly.
CN101830277AInactive Publication Date: 2010-09-15巴勃罗·阿方索·冈萨雷斯·阿瓦尔
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
巴勃罗·阿方索·冈萨雷斯·阿瓦尔
Publication Date
2010-09-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention refers to a fixed pitch type propeller for vessels, fitted with exchangeable blades and having a central core unit that can be coupled to the transmission receiving the movement from the corresponding engine, and a plurality of blades that surround it in an equiangular distribution and are affixed to the central core; said core (1) has a prism-like configuration with as many faces as blades (2), each of its lateral faces having a groove 6 that ends in a narrowed mouth opening, while the inner ends of blades 2 are each topped by a header (4) that can be coupled to one of the lateral faces of the core unit (1) and fitted midway with a rib (7) that is complementary to the groove (6). The invention also provides means for axial immobilization (3-8) of the headers (4) of the blades respective to the core unit (1).
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Description

technical field

[0001] The present invention relates to a propeller of the type used for motorized watercraft with a diameter between 1250 mm and 7500 mm, as conventional.

[0002] The object of the present invention is to obtain a propeller with replaceable blades fixed to the core device without screws, thus eliminating the tension normally located around said screws, while improving the stability of the whole device Robustness and cost savings associated with assembly and disassembly time. The invention reduces the number of components in the device, making it simpler and more compact.

[0003] The invention belongs to the field of the ship industry, in particular to machines and accessories of the type used for motorized ships and / or ship propulsion. Background technique

[0004] Propellers in general, and more specifically fixed-pitch propellers with replaceable blades, are constructed by functionally combining a core, several radial blades and their fixing elements. ...

Claims

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