Abstract

A device and method for a travelling watercraft rapidly slowing down/braking. The traveling watercraft (2) comprises at least one brake plate (11, 131, 132) provided in a storage bin (7); the provided brake plates (11, 131, 132) are controlled to switch from a stored state to an open state facing the advancing direction of the watercraft; and the brake plates in the open state are used to block water flow or air flow, so as to obtain the functions of slowing down, braking, and steering the watercraft.

IPC Classes  ?

• B63B 1/30 - Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydrofoil type with movable hydrofoils retracting or folding

Abstract

Disclosed are a ship propulsion structure device and method using an air working medium for propulsion. Axial flow jet propulsion devices (1) using the air working medium for propulsion are mounted and deployed on a broadside of a ship (2) above a waterline or at one or more places in a space above the stern of the ship in a combined manner. Furthermore, by combining the axial flow jet propulsion devices (1) using a water working medium for propulsion arranged below the waterline of the ship, the ship (2) has the propulsion capacity of dual working mediums, thereby greatly enhancing the driving propulsion force for the ship, creating propulsion conditions for general high speeds of the ship, and further providing coping means for the ship to cope with navigation in complex water environments, for example, the pure air working medium can be selected for propulsion in shallow water areas which are not suitable for propulsion by means of propellers and pump jets or in water areas with too many floating objects, which are difficult for the ship to navigate.

IPC Classes  ?

• B63H 11/12 - Marine propulsion by water jets the propulsive medium being steam or other gas

Abstract

A deployment and installation method for direct-suction jet propulsion in an underwater vehicle, and an installation structure. According to the installation method, a baseplate body of an underwater vehicle or a side plate body under a waterline of the underwater vehicle is set to be a direct-suction jet propulsion deployment and installation carrier, several direct-suction jet propulsion installation positions are deployed on the direct-suction jet propulsion deployment and installation carrier, and a specific installation structure of the selected direct-suction jet propulsion is fit. The installation structure is one or a combination of an inner installation structure, an outer installation structure, or a storage warehouse structure. According to the installation method and the installation structure, the propulsion device for the underwater vehicle is independent in operations and is not constrained by the layout of the ship's engine compartment, and the position setting can be flexible.

IPC Classes  ?

• B63H 11/00 - Marine propulsion by water jets

Abstract

Provided is an in-water navigation body highspeed and efficient propulsion method. A propulsion apparatus (1) is provided at the bottom of an in-water navigation body, and the propulsion apparatus is provided with a waterjet propulsion device that is provided at the bow portion of the in-water navigation body and sucks in water from the heading direction of the in-water navigation body. The in-water navigation body highspeed and efficient propulsion method can be applied to a submersible apparatus and a ship. The propulsion method increases a total propulsive force for navigation and reduces a total resistance for the navigation of the in-water navigation body without changing the power of the in-water navigation body.

IPC Classes  ?

• B63H 11/08 - Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type
• B63B 1/40 - Other means for varying the inherent hydrodynamic characteristics of hulls by diminishing wave resistance

Abstract

A novel method for suppressing wave-making of a ship. A plurality of wave-making water inlets (15) are arranged at the bow and two sides of the ship below a waterline of the ship. The wave-making water inlets (15) are associated with a propulsion device water inlet having both a propelling function and a wave drawing function and provided at an inner side of the ship below the waterline. When the ship travels, a propulsion device (1) draws in water from outside of the bow and the two sides, and expels same via the stern, so that the water becomes a part of a propelling water flow. The ship is not provided with a bulbous bow. A device employing a novel structure for suppressing wave-making of ship, wherein a wave-making water inlet (15) thereof has at least one of a flat-top water inlet structure, a protruding flat-top water inlet structure, or a protruding forward-tilted water inlet structure. The method and device reduce wave-making resistance acting on a traveling ship, and increase a force pushing the ship.

IPC Classes  ?

• B63B 1/40 - Other means for varying the inherent hydrodynamic characteristics of hulls by diminishing wave resistance
• B63H 11/04 - Marine propulsion by water jets the propulsive medium being ambient water by means of pumps

Abstract

The present invention provides a watercraft fast-response steering method, application, and structural device. A steering plate, a direct suction jet propulsion device, or a combination of the two replaces a conventional stern rudder to become a new rudder. A new deployment mode of the new rudder at multiple point positions of bow and stern side boards or a bottom, especially the deployment of the new rudder at the bow side boards, enables steerage response time to be extremely short, and the steering operation of a watercraft to be quite agile. Both water and air are steering working medium to form double working medium steering, the needs of steering of light and heavy watercrafts can be easily coped with and satisfied, and for a heavy burden watercraft, the energy consumption of steering can also be reduced. The present invention fundamentally solves the shortcomings of small steering torque and long response time existing in the simple stern rudder steering of an existing watercraft. The present invention has the advantages of abundant steering means, large steering torque, fast steering response, strong steering capability, high efficiency, and flexibility, supports ship steering with zero turning radius, satisfies the requirements of fast and sensitive ship steering in the era of universal high navigational speed, and provides technical guarantee for satisfying the navigation safety in the era of universal high navigational speed.

IPC Classes  ?

• B63H 11/02 - Marine propulsion by water jets the propulsive medium being ambient water
• B63H 25/44 - Steering or slowing-down by extensible flaps or the like
• F04D 25/08 - Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation