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

Method for operating a vessel comprising a plurality of propulsion units

A technology for propulsion units and ships, applied in the direction of steering and steering with propulsion components, ship propulsion, propulsion components, etc., which can solve the problems of reducing and increasing the total thrust of ships

Active Publication Date: 2021-05-25
VOLVO PENTA AB
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Air pockets can lead to reduced propeller 'grip' in water
[0004] It is known to use the middle propulsion unit in sway maneuvers of ships with three propulsion unit arrangements to increase the reverse thrust, thereby limiting the rotational speed of the engine for the propulsion unit in reverse gear so that the cavitation effect is limited , and at the same time allows higher thrust on the forward propulsion unit, thus increasing the overall thrust of the ship

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
  • Method for operating a vessel comprising a plurality of propulsion units
  • Method for operating a vessel comprising a plurality of propulsion units
  • Method for operating a vessel comprising a plurality of propulsion units

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] figure 1 A perspective view of a watercraft 1 in the form of a small motorboat is shown, in which an embodiment of the invention is used. In general, marine propulsion control systems according to embodiments of the present inventive concepts may be used in any type of surface vessel, such as large commercial vessels, boats for transporting cargo and / or personnel, recreational boats, and other types of surface vessels.

[0042] like figure 1 As further schematically shown in FIG. 1 , a ship 1 has a hull 2 ​​with a bow 3 and a stern 4 . The vessel has two symmetrical sections on opposite sides of a longitudinal centerline extending from bow 3 to stern 4 and said two symmetrical sections are parallel to the intended straight-line direction of travel of the vessel.

[0043] In the stern 4, three propulsion units 106, 107, 108 in the form of outboard motors are installed. More precisely, the vessel 1 is provided with a first propulsion unit 106 arranged towards the port ...

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 provides a method for operating a vessel (1) comprising a plurality of propulsion units (106, 107, 108, 206, 207, 208), each propulsion unit being arranged to transmit thrust to the vessel (1) the water being floated, the thrust transmission level of the propulsion units (106, 7, 108, 206, 207, 208) is individually controllable, the method comprising: controlling (S2) the first propulsion unit in the propulsion unit (106, 207) to transmit thrust in a direction (T106, T207) having a component along the first direction (F) of the ship, while controlling (S2) a second of the propulsion units (107, 208) to transmit A thrust force smaller than that of the first propulsion unit (106, 207) and subsequently increased (S4) is transmitted by the second propulsion unit (107, 208) in a direction (T107, T208) having a component in the first direction (F) The method further includes: decreasing (S5) the thrust delivered by the first propulsion unit (106, 207) while increasing the thrust delivered by the second propulsion unit (107, 208).

Description

technical field [0001] The invention relates to a method of operating a vessel comprising a plurality of propulsion units, each propulsion unit being arranged to transmit thrust into water in which the vessel floats. The invention also relates to a computer program, a computer readable medium, a control unit, a ship propulsion control system and a ship. [0002] The present invention is not limited to any particular type of vessel. Rather, the invention may be used with any type and size of watercraft, surface craft and submarines. Background technique [0003] In marine propulsion control systems for controlling a set of propulsion units carried by the hull of a vessel, cavitation typically occurs on the propulsion units with reverse gear engaged. For example, in a roll maneuver (where one propulsion unit is in forward gear and the other is in reverse gear), the engine for the reverse propulsion unit may need to be controlled at a relatively high speed to match that of th...

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 Patents(China)
IPC IPC(8): B63H20/00B63H25/42
CPCB63H20/00B63H20/007B63H20/20B63H25/42B63H2020/003B63B34/05B63H5/125
Inventor 塞巴斯蒂安·尼尔森
Owner VOLVO PENTA AB