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An adjustable propeller arrangement and a method of distributing fluid to and/or from such an adjustable propeller arrangement

A technology of propeller and pitch, applied in the directions of propeller, transportation and packaging, machine/engine, etc., can solve problems such as damage to the strength and torsional strength of the drive shaft, expensive propeller device, and troublesome manufacturing.

Inactive Publication Date: 2011-10-19
CATERPILLAR PROPULSION PRODION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The connecting device disclosed in '940 can be troublesome because it includes a large number of chambers, gaps and spaces
Also, due to the complexity of the linkage, the '940's propeller assembly would be relatively expensive and bulky
Furthermore, the connection of '940 requires multiple radial openings in the drive shaft, or at least in the intermediate shaft forming part of the drive shaft, which openings may impair the strength of the drive shaft, especially its torsional strength

Method used

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  • An adjustable propeller arrangement and a method of distributing fluid to and/or from such an adjustable propeller arrangement
  • An adjustable propeller arrangement and a method of distributing fluid to and/or from such an adjustable propeller arrangement
  • An adjustable propeller arrangement and a method of distributing fluid to and/or from such an adjustable propeller arrangement

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Embodiment Construction

[0038] The present invention can be described using examples of embodiments. It should be appreciated, however, that the examples are included in order to illustrate the principles of the invention and not to limit the scope of the invention, which is defined by the appended claims.

[0039] figure 1 A schematic side view of a boat 10 comprising a controllable pitch propeller arrangement 12 is shown. as available from figure 1 As found, the device 12 comprises a drive shaft 14 extending along the longitudinal direction L, and a controllable pitch propeller 16 connected to the drive shaft 14 . A controllable pitch propeller comprising at least one propeller blade, in figure 1 In the illustrated embodiment of a controllable pitch propeller, the propeller comprises four propeller blades, three of which 18, 20, 22 are in figure 1 can be seen in . However, other implementations of propellers with more or fewer propeller blades can also be used with the propeller arrangement of t...

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PUM

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Abstract

The present invention relates to an adjustable propeller arrangement comprising a drive shaft extending in a longitudinal direction and an adjustable propeller connected to the drive shaft. The adjustable propeller comp rises at least one propeller blade and an adjusting member connected to the at least one propeller blade such that the pitch of the at least one propeller blade is controlled by the position, in the longitudinal direction, of the adjusting member. The arrangement comprises a conduit assembly which in turn comprises a duct located outside of the drive shaft and the conduit assembly further comprises a first conduit portion extending at least partially within the drive shaft. The conduit assembly is adapted to provide a fluid communication between the adjustable propeller and the duct.

Description

technical field [0001] The present invention relates to a controllable pitch propeller device comprising a drive shaft extending in a longitudinal direction, and a controllable pitch propeller connected to the drive shaft. The adjustable pitch propeller comprises at least one propeller blade and an adjustment member connected to the at least one propeller blade such that the pitch of the at least one propeller blade is controlled by the position of the adjustment member along the longitudinal direction. The apparatus includes a tubing assembly which in turn includes a conduit disposed externally to the drive shaft and which further includes a first tubing portion extending at least partially within the drive shaft. The duct assembly is adapted to provide fluid communication between the adjustable pitch propeller and the conduit. [0002] The invention also relates to a method of dispensing fluid to and / or from a controllable pitch propeller arrangement. Background technique...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63H3/08B63H3/04B64C11/42B64C11/06F03D7/02
CPCB63H3/08B63H3/082Y02E10/72
Inventor C·蒂伯格
Owner CATERPILLAR PROPULSION PRODION
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