CN2467396Y

CN2467396Y - Superlow resistance navigation hull

Info

Publication number: CN2467396Y
Application number: CN01216595U
Authority: CN
Inventors: 王子军
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-02-27
Filing date: 2001-02-27
Publication date: 2001-12-26
Anticipated expiration: 2011-02-27

Abstract

The utility model provides a super-low resistance navigation hull, belonging to a hull of a navigation unit on water surface or in water. The utility model is characterized in that bar-grating-shaped water inlets (2) which are in symmetrical arrangement on a bow and are respectively via a flow channel in the hull to be communicated with propelling water jets (3) at the bottom of the hull; the bottom of the hull is provided with keel fins (6) which are connected with the bow; the tail of the keel fins is provided with tail side pushing device installation holes (8). The navigation hull has the advantages of small navigation resistance, good transverse stability, strong handleability and high propelling efficiency during the navigation in water.

Description

Ultralow resistance navigation type body

The utility model provides the type body of aircraft in a kind of water surface, the water, the type body of especially conventional displacement boat.

In decades, the speed of a ship or plane of boats and ships improves slower, and the speed of a ship or plane of conventional displacement boat is always paced up and down between 20～30 joints.Its reason is that conventional displacement boat is because of its hull principal dimension and displacement is little, seakeeping performance is poor, and the speed of a ship or plane is restricted big in the stormy waves, thus the practicality that has influenced the naval vessel transportation and fought.That though the various high-performance ships that release one after another have possessed to a certain extent is efficient, low-resistance, seakeeping performance better, the characteristics that in stormy waves, can navigate by water at a relatively high speed, but owing to these novel ship cost height, technical sophistication, have a big risk, a fashion difficulty is applied to large tonnage naval vessel.Therefore, in quite long period in future, conventional displacement boat will occupy bigger quantity in the aircraft in water surface water, further improves and the performance that improves conventional displacement boat still has bigger space and necessity.

The purpose of this utility model provides a kind of ultralow resistance navigation type body, to reduce running resistance, improves the propulsion coefficient and the speed of a ship or plane.

The utility model is to realize like this, ultralow resistance navigation type body, on described navigation type body, there is preceding thruster mounting hole at the bow position, the bar-grating shape water inlet that symmetric offset spread arranged on the bow runner in the type body respectively communicates with the propelling water injector of type body bottom, and type body two bottom sides has long bilge keel fin, and the keel fin that links to each other with bow is arranged at type body bottom, keel fin afterbody has the stern thruster mounting hole, and conformal efficient rudder and keel fin afterbody are installed together.

Adopt the ultralow resistance navigation type body of said structure, running resistance is little during navigation in water, and lateral stability is good, and maneuvering performance is strong, and the propulsion coefficient and the speed of a ship or plane are greatly improved.

The embodiment that provides below in conjunction with accompanying drawing illustrates structure of the present utility model and principle of work.

Fig. 1 is the upward view of the utility model structure.Fig. 2 is its front view.Fig. 3 is its left view.

As shown in drawings, on the ultralow resistance navigation type body of the utility model, there is preceding thruster mounting hole (1) at the bow position, the bar-grating shape water inlet (2) that symmetric offset spread arranged on the bow runner in the type body respectively communicates with the propelling water injector (3) of type body bottom, type body two bottom sides has long bilge keel fin (7), the keel fin (6) that links to each other with bow is arranged at type body bottom, and keel fin afterbody has stern thruster mounting hole (8), and conformal efficient rudder (9) is installed together with keel fin afterbody.

Side control fin (5) is installed on described long bilge keel fin (7).The side control fin is fused into one with long bilge keel fin when line navigation, its profile and long bilge keel fin be consistent (being conformal).Quiet when needs, turn to dynamically, during sidesway, in the effect lower swing skew of steering unit.

Vector controller (4) is arranged near the type body the described propelling water injector (3).

Described conformal efficient rudder (9) when line navigation and the keel fin be fused into one, its profile and keel fin are consistent.Quiet when needs, turn to dynamically, during sidesway, at the effect lower swing of steering unit.

When above-mentioned type body is used to navigate by water, preceding thruster and stern thruster by maneuvering system control can be installed in the stern thruster mounting hole (8) of the preceding thruster mounting hole (1) of bow, keel fin rudder afterbody.Install in the runner in the type body and promote the water-spraying type propelling unit that boats and ships advance.

Bow can adopt the spheroidal shape of class, and the stem of hull is extended below the baseline.The bar-grating shape water inlet can be protected the interior water-spraying type propelling unit of runner and for it provides good condition of service, reduce effective wave resistance area of bow simultaneously again, reaches the purpose of falling resistance.

Keel fin (6) extends to the conformal efficient rudder by bow, the integrated ship fin of hull is passed through in formation, its center vertical plane and conformal efficient rudder are in the same vertical vertical plane, can utilize self line style of hull preferably, separate and control the mutual action of water spray wake flow, alleviate the reduction of the efficient that the mutual interference of wake flow phase causes, can reduce boats and ships effectively simultaneously and move horizontal variable, keep good lateral stability.

Settle the water-spraying type propelling unit in the runner of this navigation type body, propulsion mode becomes afterbody and advances to stem advances, and can effectively utilize angle of rake suction, row's factor.Self line style of type body can be disturbed the formation of bow wave making and tail whirlpool, turbulent flow, and the laminar flow around the controllable type body reduces boats and ships operation total drag, strengthens advancing usefulness.

Preceding thruster is installed in the bow position, and back thruster is installed in keel fin afterbody, and vector controller is installed in and advances the water injector top, respectively by independently power system driving.Forward and backward thruster, vector controller, side control fin and conformal efficient rudder constitute compound maneuvering system, can synchronously or work alone, the maneuvering performance of boats and ships and the control ability of shaking further improves, can realize quiet, turn to dynamically, the not available high maneuverability of a series of normal conventional displacement boats such as sidesway.

In the type body, the rear portion, its cross-sectional plane is the transition face of M-T shape, is promptly progressively carried out the transition to the T shape cross-sectional plane of type body afterbody by the M shape cross-sectional plane that advances the water injector place.Bottom of ship promptly forms a long trumpet shape space like this, helps improving, concentrates the water spray energy, absorbs water spray complementary energy, improves propulsion coefficient.

Permeate integral body of long bilge keel fin and type body can reduce the annex resistance, further improves the waterjet propulsion performance.

Structural principle of the present utility model also can be used for this submarine navigation device of submarine.

The large-tonnage boats and ships are influenced by sky, fully loaded, and its draft, required thrust power have very big-difference.At this moment can take the parallel connection of many group waterjet propulsors, the overlapping form of water inlet.At full load, all waterjet propulsors turn round simultaneously, and the running of part waterjet propulsor is only arranged when unloaded.So both can improve economy, reduce the parts loss again.

Claims

1, ultralow resistance navigation type body, it is characterized in that, on described navigation type body, there is preceding thruster mounting hole (1) at the bow position, the bar-grating shape water inlet (2) that symmetric offset spread arranged on the bow runner in the type body respectively communicates with the propelling water injector (3) of type body bottom, and type body two bottom sides has long bilge keel fin (7), and the keel fin (6) that links to each other with bow is arranged at type body bottom, keel fin afterbody has stern thruster mounting hole (8), and conformal efficient rudder (9) is installed together with keel fin afterbody.

2, ultralow resistance navigation type body as claimed in claim 1 is characterized in that, side control fin (5) is installed on described long bilge keel fin (7).

3, ultralow resistance navigation type body as claimed in claim 1 or 2 is characterized in that vector controller (4) is arranged near the type body the described propelling water injector (3).