Unlock instant, AI-driven research and patent intelligence for your innovation.

Cover device and thruster

A thruster and lip technology, applied in the field of bow or stern thrusters, can solve problems such as failure of butterfly valves

Inactive Publication Date: 2018-07-31
斯凯孚海运有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

By themselves or in combination with each other, in extreme cases, all influencing factors may lead to the complete failure of this butterfly valve

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Cover device and thruster
  • Cover device and thruster
  • Cover device and thruster

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] figure 1 A plan view showing the underwater opening of the propeller in the hull of a vessel with the cover arrangement in a fully retracted state.

[0024] In the hull 10 of a watercraft 12 , here exemplarily formed as a ship, an opening 16 situated below the water 14 has a circular cross-sectional geometry, which opening 16 is temporarily closed using a cover device 20 according to the invention. The opening 16 is designed here only by way of example as a starboard or port side opening 22 of a transverse channel 24 of a propeller 26 , which penetrates completely through the hull 10 . The propeller 26 comprises a drive unit 28 for rotationally driving a propeller 30 in order to generate in the transverse channel 24 extending transversely to the longitudinal axis 32 of the hull 10 the powerful water flow necessary for easier maneuvering. Here, the thrusters 26 may be configured as bow or stern thrusters 34, for example. In principle any opening under water in the hull...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a cover device (20, 110) for at least partially closing off an under-water opening (16) in a hull (10) of a watercraft (12), especially an opening (22, 90) of a transverse channel (24) in a thruster (26), wherein the cover device (20, 110) has at least one variable-volume hollow lip (40) with at least one buoyancy element (50), and the at least one hollow lip (40) can be made to expand or shrink by supplying or releasing a fluid (46), in particular air (48). The variable-volume, or inflatable, structure of the cover device ensures reliable and low-maintenance operationof said device. The invention further relates to a thruster, in particular a bow thruster or stern thruster.

Description

technical field [0001] The invention relates to a cover device for at least partially closing an opening located under water in the hull of a vessel, in particular an opening of a transverse channel of a thruster. Furthermore, the invention has as subject a thruster, especially a bow or stern thruster. Background technique [0002] Modern passenger or cargo ships usually have various openings which are located underwater. Such openings are used, for example, to draw in cooling water from the channel water and to re-inject heated cooling water into the channel water of the ship. Furthermore, propellers can be provided, for example, in the bow and / or stern region in order to improve the maneuverability of the ship. Under favorable flow and weather conditions, thrusters may cause unnecessary and costly use of tugs during docking maneuvers, especially for lateral movement of the vessel. However, such propellers require a transverse channel completely penetrating the hull belo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B63B1/36B63B13/02B63H25/46
CPCB63B1/36B63B13/02B63H25/46B63H2025/465Y02T70/10
Inventor M.佐伦科夫H.斯帕尔德尔T.西布雷克特U.莱特洛夫U.阿尔布雷克特F.阿尔布雷克特K.丹内伯格
Owner 斯凯孚海运有限公司