propeller device

A technology for propellers and propeller shafts, which is used in propulsion transmissions, transmissions with synchronous propulsion components, transportation and packaging, etc., can solve the problems of bearing fatigue damage, reduction of fatigue life of shaft components, etc., to reduce the risk of bearing burning, Efficient cooling effect

Inactive Publication Date: 2018-07-31
CATERPILLAR PROPULSION PRODION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A common problem with known devices is the fatigue damage of the bearings and the reduced fatigue life of the shaft elements

Method used

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Examples

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Embodiment Construction

[0045] The embodiments herein will be described more fully below with reference to the accompanying drawings. In the drawings, the same numerals denote the same elements.

[0046] exist figure 1 , schematically shows the rear of a marine vessel with a propeller arrangement 100 according to an embodiment herein. The marine vessel may eg be a cargo ship or a supply ship.

[0047] The propeller arrangement comprises a propeller 110 having a hub 111 and at least one propeller blade 112 extending from the hub 111 . The hub may eg have a cylindrical, conical or barrel shape. figure 1 The illustrated propeller 110 includes four propeller blades 112 extending from a hub 111 . According to some embodiments herein, the diameter of the propeller (ie the diameter of the imaginary circle drawn by the tips of the blades when the propeller rotates) is at least 4 meters.

[0048] The propeller has a proximal side 114 extending to a proximal end 116 of the propeller 110 and a distal side ...

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PUM

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Abstract

A propeller arrangement (100) for a marine vessel, the propeller arrangement (100) comprising a propeller (110), a propeller shaft assembly (120) comprising a shaft portion (122) extending from a distal side of the propeller (111 ), a support member (130) arranged to be connected to a hull (2) of the marine vessel, and a bearing arrangement (140) interconnecting the support member (130) and the shaft portion (122). The propeller arrangement is characterized in that the support member (130) comprises at least one cooling fluid conduit (131 ) for accommodating and circulating a first cooling fluid within the support member (130) and further to the shaft portion (122) and / or to the bearing arrangement (140).

Description

technical field [0001] Embodiments herein relate to a propeller arrangement, and more particularly to a propeller arrangement comprising a propeller, a propeller shaft assembly comprising a shaft portion extending from a distal side of the propeller, a support member arranged to be connected to a hull of a marine vessel, and A bearing unit that interconnects the support member and the shaft. Background technique [0002] Today's marine vessels, such as cargo ships, supply ships, naval vessels, and pleasure boats, are generally equipped with a propulsion system having a propeller connected to the ship's engine via a shaft assembly supported on the ship's engine by at least one bearing. in the stern tube. [0003] Bearings support the weight of the propeller shaft and propeller. In many large marine vessels, the propellers used are very large and heavy, and, during operation of the propeller arrangement, bearings and other parts of the propeller arrangement are subjected to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63H23/32B63H3/08B63B3/40B63B3/42
CPCB63B3/40B63B3/42B63H3/08B63H23/321
Inventor M·扎伊德
Owner CATERPILLAR PROPULSION PRODION
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