CN101626951B - Boat propulsion engine - Google Patents

Boat propulsion engine Download PDF

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Publication number
CN101626951B
CN101626951B CN2006800304566A CN200680030456A CN101626951B CN 101626951 B CN101626951 B CN 101626951B CN 2006800304566 A CN2006800304566 A CN 2006800304566A CN 200680030456 A CN200680030456 A CN 200680030456A CN 101626951 B CN101626951 B CN 101626951B
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CN
China
Prior art keywords
propulsion engine
boat propulsion
lifting power
creating lifting
main body
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Expired - Fee Related
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CN2006800304566A
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Chinese (zh)
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CN101626951A (en
Inventor
塩见和之
池野哲朗
冈田毅
木浦寿朗
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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Priority claimed from JP2005239970A external-priority patent/JP2007055302A/en
Priority claimed from JP2005240120A external-priority patent/JP4758710B2/en
Application filed by Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority claimed from PCT/JP2006/316666 external-priority patent/WO2007023928A2/en
Publication of CN101626951A publication Critical patent/CN101626951A/en
Application granted granted Critical
Publication of CN101626951B publication Critical patent/CN101626951B/en
Expired - Fee Related legal-status Critical Current
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Abstract

A boat propulsion engine (1) comprises a main body (4) that extends substantially vertically in relation to a hull (Si), a lift generator (20) disposed in a rear portion of the main body (4), and supporting bodies (24) that support the lift generator (20) on the main body (4). The lift generator (20) has a surface (21g, 21h) that extends transversely relative to the main body (4) and that is located behind at least the main body (4). The supporting bodies (24) extend backward from the main body (4) to the lift generator (20) in a single vertical direction relative to a surface (21g, 21h) of the lift generator (20).

Description

Boat propulsion engine
Technical field
The present invention relates to a kind of boat propulsion engine, it has the device for creating lifting power that is used to produce lift, so that at hull (boats and ships) stern is risen.
Background technology
In the boats and ships that move on the water through the propulsive force of boat propulsion engine, stern is at boats and ships and descends when static and be submerged under water.When the hull setting in motion, stern further descends and the fore rise.Thus, on the bow both sides form conical surface wave.Hull is orientated to above wave and goes, and promptly its orientation places and overcomes bow wave.Therefore, hull tilts when the boats and ships setting in motion.Because water is very big when the boats and ships setting in motion to the resistance (resistance of motion) of hull, very difficult realization reaches enough ship's speed (hull speed).
In order to increase ship's speed, must be through the orientation that stern risen to a certain degree make hull near level.Yet if do not take special measure, hull need reach near horizontal alignment for a long time.Boat propulsion engine leaves some room for improvement and allows hull to quicken fast and reposefully.Given this; In tradition is implemented; Open among communique No.57-60995 (JP-A-57-60995) and the 59-130799 (JP-A-59-130799) in Japanese Patent Laid and to disclose device for creating lifting power, said device for creating lifting power makes stern and boat propulsion engine rise when the boats and ships setting in motion.
In the disclosed boat propulsion engine, anti-cavitation, splash board and accelerator card upwards are installed on the housing with said order from the screw propeller that is positioned at extreme lower position in the 57-60995 communique.Accelerator card constitutes device for creating lifting power and comprises the horizontal plate that extends to both sides from the left and right sides of housing.
Yet the accelerator card of disclosed boat propulsion engine only is a horizontal plate in the 57-60995 communique.And the rear end of accelerator card is not extended far to the rear portion of screw propeller.Therefore, because accelerator card is difficult to produce enough lift, when the boat propulsion engine setting in motion, the effect that rises the stern that floods fast and reposefully is very little.The orientation movement of hull is become near level, thereby be difficult to realize quickening more reposefully.In addition, accelerator card must be enough firm with respect to lift.
In the disclosed boat propulsion engine, anti-cavitation and kickboard upwards are installed on the main body with said order from the screw propeller that is positioned at extreme lower position in the 59-130799 communique.Kickboard constitutes device for creating lifting power and comprises the plate that extends to both sides from the left and right sides of main body.It is the cross section of blade plan form that kickboard has when seeing from the side.
Yet, in the 59-130799 communique in the disclosed boat propulsion engine, kickboard along length longitudinally less than anti-cavitation along length longitudinally.In addition, the rear end of kickboard is positioned to than the rear end of anti-cavitation more forward.Therefore, because kickboard is difficult to produce enough lift, when the boat propulsion engine setting in motion, the effect that rises the stern that floods fast and reposefully is very little.The orientation movement of hull is become near level, thereby be difficult to realize quickening more stably.In addition, kickboard must be enough firm with respect to lift.
The technology that is used to strengthen anti-cavitation and kickboard is disclosed in United States Patent(USP) No. 4738644 and 5645009.
In the disclosed boat propulsion engine, anti-cavitation is set at around the shell that is positioned at the screw propeller top, and left right finned plate is attached on the end face of anti-cavitation in United States Patent(USP) No. 4738644.Left side right finned plate comprises the horizontal plate of being strengthened by reinforcement.In addition, the middle body of left right finned plate passes through bracing frame by housing supports.
Yet the wing plate of disclosed boat propulsion engine is set to length basically in the front end from anti-cavitation extends to the scope of rear end in United States Patent(USP) No. 4738644.Therefore, because the wing plate is difficult to produce enough lift, when the boat propulsion engine setting in motion, the effect that rises the stern that floods fast and reposefully is very little.The orientation movement of hull is become near level, thereby be difficult to realize quickening more stably.And when hull was advanced by boat propulsion engine, strengthening part and bracing frame produced the resistance to water.
In the disclosed boat propulsion engine, anti-cavitation is set in place around the shell of screw propeller top in United States Patent(USP) No. 5645009, and horizontal adapter plate is attached on the end face of anti-cavitation, and on the rear end of adapter plate, is supported with deflecting plate.Deflecting plate is supported for can be from level attitude to lower swing.Deflecting plate is through swinging the downward-sloping backward lift that produces.
Yet, the deflecting plate of disclosed boat propulsion engine conversion between level attitude and obliquity in the United States Patent(USP) No. 5646009, and through remaining on obliquity from boat propulsion engine or from the bar that stern extends.Therefore, be used to produce device (the comprising deflecting plate) complex structure of lift, and need to switch the operation of this device.In addition, no matter whether complex structure, and it is enough that deflecting plate self can not be regarded as with respect to the rigidity of lift.
Consider these, need a kind of device for creating lifting power, it can produce lift so that promote stern fast and reposefully.Also need improve the rigidity of device for creating lifting power, so that bear sizable lift.
Summary of the invention
According to a first aspect of the invention, a kind of boat propulsion engine that is suitable for being installed on the hull is provided, this boat propulsion engine comprises: main body, and this main body is extended with respect to said hull perpendicular; Device for creating lifting power, this device for creating lifting power is arranged in the rear portion of said main body; And supporter, this supporter is used to support the said device for creating lifting power that is positioned on the said main body, and wherein said main body is configured to hold axle drive shaft, and this axle drive shaft perpendicular is extended so that drive source drives power is delivered to screw propeller; Said device for creating lifting power has the surface that also is positioned at said main body rear with respect to said main body horizontal expansion at least; And said supporter is configured to vertically extend rearward to said device for creating lifting power from said main body with respect to the said surface of said device for creating lifting power along single.
In the boat propulsion engine of arranging like this, device for creating lifting power has the surface that also is positioned at the main body rear with respect to the main body horizontal expansion at least.Therefore, when hull during, can effectively and effectively produce lift through device for creating lifting power from static setting in motion.Boat propulsion engine and stern steadily and apace rise through this lift.When the hull setting in motion, hull becomes near horizontal alignment fast and reposefully, and stern can not flood very deeply under this orientation, borrows it to overcome bow wave.Therefore, can significantly reduce after hull setting in motion hull reach overcome bow wave by near the required time of horizontal alignment.Therefore, hull can steadily and apace quicken.
And supporter vertically extends rearward to device for creating lifting power from main body with respect to the surface of device for creating lifting power along single, and is connected to device for creating lifting power.Therefore and since device for creating lifting power via supporter by body supports, rigidity further increases.Even device for creating lifting power is arranged on backward away from the position (adapting with the increase of rigidity) of boat propulsion engine, also can guarantee required rigidity.Can further increase the lifting effect of stern through the position of device for creating lifting power is moved backward.In addition, because supporter forms along longitudinal extension, can increase the surperficial rigidity of device for creating lifting power.
Preferably, said supporter has the cross section of extending along the direction of propulsion of this boat propulsion engine.Therefore, can fully increase the device for creating lifting power surface rigidity of opposing acts on device for creating lifting power along direction of propulsion lip-deep power through support component.
In addition, said supporter preferably is set on said main body latter half of.Therefore, the supporter position that is connected to main body changes.The length that connects the supporter of main body and device for creating lifting power can correspondingly reduce.Therefore, can reduce the size of supporter.
In addition, preferably, when seeing this boat propulsion engine from the rear, said supporter is arranged in the maximum width scope of said main body.Therefore, the resistance that the wave that can reduce when hull travels forward, to be produced by supporter forms, promptly the wave of supporter forms resistance.Therefore, can produce pulsation-free lift through device for creating lifting power, but and propelled at high velocity hull.
In addition, preferably, the said surface of said device for creating lifting power has the inclined surface that extends back downwards, and said supporter is configured to support at least near the part of this inclined surface.Therefore, can effectively and effectively obtain lift through the inclined surface that extends back downwards.Can further reduce after the hull setting in motion, reach hull overcome bow wave by near the required time of horizontal alignment.Therefore, hull can steadily and apace quicken.Near the supported body of the part of the device for creating lifting power inclined surface that bears most of propulsive force and lift supports.Therefore, can increase the rigidity of device for creating lifting power effectively.
In addition, preferably, said supporter extends near the rear end of said device for creating lifting power, thereby increases the scope that supports this device for creating lifting power.Therefore, can effectively increase the surperficial rigidity of device for creating lifting power through supporter.
In addition, preferably, said supporter and said main body are integrally formed.Thus, can be easily and make supporter cheaply.
In addition, preferably, said supporter becomes with said body portion open form.Therefore, can determine whether and will supporter and device for creating lifting power be positioned on the main body.Can also suitably select the optimum shape of supporter and device for creating lifting power.If desired, supporter and device for creating lifting power also can be attached on the main body from the rear.Therefore, can realize the manufacturing advantage of boat propulsion engine, and the user can at random select supporter and device for creating lifting power.
According to a second aspect of the invention, a kind of boat propulsion engine that is suitable for being installed on the hull is provided, this boat propulsion engine comprises: main body, and this main body is extended with respect to said hull perpendicular; Periphery wall, this periphery wall is made up of separate part, and this separate part is around the periphery setting of said main body and be attached on the said main body; Device for creating lifting power, this device for creating lifting power is arranged in the rear portion of said periphery wall; And supporter, this support body supports is positioned at the said device for creating lifting power on the said periphery wall; Wherein, said main body is configured to hold axle drive shaft, and this axle drive shaft perpendicular is extended so that drive source drives power is delivered to screw propeller; Said device for creating lifting power has the surface that also is positioned at said periphery wall rear with respect to said periphery wall horizontal expansion at least; And said supporter is configured to extend rearward to said device for creating lifting power with respect to the said surface of said device for creating lifting power along single vertical outside face from said periphery wall.
In the driving engine of arranging like this,, can determine whether and will supporter and device for creating lifting power be positioned on the main body because supporter and device for creating lifting power are arranged on the periphery wall that is made up of the separate part that is attached on the main body.And, can suitably select the optimum shape of supporter and device for creating lifting power.If desired, supporter and device for creating lifting power can be attached on the main body from the rear.Therefore, can realize the manufacturing advantage of boat propulsion engine, and the user can at random select supporter and device for creating lifting power.
Through this layout,, can effectively and effectively obtain lift through device for creating lifting power when hull during from static setting in motion.Therefore, during from static setting in motion, can effectively and effectively obtain lift at hull through device for creating lifting power.Boat propulsion engine and stern steadily and apace rise through this lift.When setting in motion, hull steadily and apace reaches near horizontal alignment, borrows this orientation to overcome bow wave.Therefore, can significantly reduce after hull setting in motion hull reach overcome bow wave by near the required time of horizontal alignment.Therefore, hull can steadily and apace quicken.
Preferably, said periphery wall is the cover of at least a portion of the said main body of covering, and this cover has continuous left side and right-hand part.Therefore, cover has few parts, and can realize favourable outward appearance easily.
In addition, preferably, said periphery wall is the cover of at least a portion of covering said main body, and this cover has and can be divided into the two-part structure in the left and right sides.Therefore, cover, device for creating lifting power and supporter can easily be assembled on the main body.
According to a third aspect of the invention we, a kind of boat propulsion engine is provided, this boat propulsion engine comprises: main body; Anti-cavitation, this anti-cavitation is set on the said main body, is positioned at the screw propeller top; And device for creating lifting power, this device for creating lifting power is set on the said main body, is positioned at said anti-cavitation top at a certain distance; Wherein, said device for creating lifting power is configured to extend back fartherly from said main body than the rear end of said anti-cavitation, and has the bottom surface that extends back downwards.
In the driving engine of arranging like this, when hull during from static setting in motion, can be effectively and effectively obtain lift through downward sweptback surface.And the rear portion of device for creating lifting power is configured to extend back fartherly than the rear end of anti-cavitation.Therefore, the lift that is produced by device for creating lifting power does not receive the influence of air pocket of the driving and generating of screw propeller.Therefore, when hull during, can effectively and effectively obtain lift through device for creating lifting power from static setting in motion.Boat propulsion engine and stern steadily and apace rise through this lift.When setting in motion, hull steadily and apace reaches near horizontal alignment, borrows this orientation to overcome bow wave.Therefore, can significantly reduce after the hull setting in motion, reach hull overcome bow wave by near the required time of horizontal alignment.Therefore, hull can steadily and apace quicken.
After hull quickened, because device for creating lifting power is positioned at the drinking water top of boats and ships, during movement this device can not produce the resistance to water, and can guarantee outstanding high-speed maneuverability.And device for creating lifting power is disposed in the anti-cavitation top.Because the space between device for creating lifting power and the anti-cavitation, the water that above anti-cavitation, flows is directed to the rear reposefully.Therefore, water can not be trapped between device for creating lifting power and the anti-cavitation.In addition, device for creating lifting power can have simple structure, and wherein this device is set at the anti-cavitation top, and has downward sweptback bottom surface.
Preferably, said device for creating lifting power is made up of plate-shaped member.Therefore, the structure of device for creating lifting power can be simplified, and device for creating lifting power can be made easily.
In addition, preferably, when seeing this boat propulsion engine from the rear, the width of said device for creating lifting power is no more than the width of this boat propulsion engine.Therefore, be installed in side by side under the situation on the stern, can prevent that these a plurality of device for creating lifting power from interfering with each other when boat propulsion engine turns to or tilt at a plurality of boat propulsion engines.
According to a forth aspect of the invention, a kind of boat propulsion engine is provided, this boat propulsion engine comprises: main body; Anti-cavitation, this anti-cavitation is set on the said main body, is positioned at the screw propeller top; And device for creating lifting power, this device for creating lifting power is set on the said main body, is positioned at said anti-cavitation top at a certain distance; Wherein, said device for creating lifting power has the bottom surface in the face of said anti-cavitation; And said bottom surface recedes downwards in the position at the rear, rear end of said anti-cavitation.
In the driving engine of arranging like this, downward sweptback device for creating lifting power surface is set at the rear, rear end of anti-cavitation.Therefore, the lift that produces through device for creating lifting power does not receive the cavitation effects of the driving and generating of screw propeller.Therefore, when hull during from static setting in motion, can be effectively and effectively obtain lift through downward sweptback surface.Boat propulsion engine and stern steadily and apace rise through this lift.When setting in motion, hull steadily and apace arrives near horizontal alignment, borrows this orientation to overcome bow wave.Thus, can significantly reduce after the hull setting in motion, reach hull overcome bow wave by near the required time of horizontal alignment.Therefore, hull can steadily and apace quicken.
After hull quickened, because device for creating lifting power is positioned at the drinking water top of ship, during movement this device can not produce the resistance to water, and can guarantee outstanding high-speed motion.And device for creating lifting power is set at the anti-cavitation top.Because the space between device for creating lifting power and the anti-cavitation, the water that above anti-cavitation, flows is directed to the rear reposefully.Therefore, water can not be trapped between device for creating lifting power and the anti-cavitation.In addition, device for creating lifting power can have simple structure, and wherein this device is set at the anti-cavitation top, and has downward sweptback bottom surface.
Preferably, said device for creating lifting power is made up of plate-shaped member.Therefore, the structure of device for creating lifting power can be simplified, and device for creating lifting power can be made easily.
In addition, preferably, when seeing this boat propulsion engine from the rear, the width of said device for creating lifting power is no more than the width of this boat propulsion engine.Therefore, be installed in side by side under the situation on the stern, can prevent that these a plurality of device for creating lifting power from interfering with each other when boat propulsion engine turns to or tilt at a plurality of boat propulsion engines.
According to a fifth aspect of the invention, a kind of boat propulsion engine is provided, this boat propulsion engine comprises: main body; Anti-cavitation, this anti-cavitation is set on the said main body, is positioned at the screw propeller top; And device for creating lifting power, this device for creating lifting power is set on the said main body, is positioned at said anti-cavitation top at a certain distance; Wherein, said device for creating lifting power have from said main body extend back latter half of, and this latter half ofly is positioned at the rear, rear end of said anti-cavitation and is positioned at said rear propeller.
In the driving engine of arranging like this, the latter half of of device for creating lifting power is positioned at the rear, rear end of anti-cavitation and is positioned at rear propeller.When boat propulsion engine is in when static, hull is so that the mode that stern reduces recedes downwards.Therefore, boat propulsion engine is to reduce the state submergence.When boat propulsion engine from this state of operation so that hull during from static setting in motion, device for creating lifting power constitutes downward sweptback inclined surface.This downward sweptback surface makes can be effectively and effectively obtain lift.
Because the latter half of of device for creating lifting power be positioned at the rear, rear end of anti-cavitation and be positioned at rear propeller, the lift that device for creating lifting power produces does not receive the influence of air pocket of the driving and generating of screw propeller.Therefore, when hull during, can effectively and effectively obtain lift through device for creating lifting power from static setting in motion.Boat propulsion engine and stern steadily and apace rise through this lift.When setting in motion, hull steadily and apace reaches near horizontal alignment, borrows this orientation to overcome bow wave.Therefore, can significantly reduce after the hull setting in motion, reach hull overcome bow wave by near the required time of horizontal alignment.Therefore, hull can steadily and apace quicken.
After hull quickened, because device for creating lifting power is positioned at the drinking water top of boats and ships, during movement this device can not produce the resistance to water, and can guarantee outstanding high-speed maneuverability.And device for creating lifting power is disposed in the anti-cavitation top.Because the space between device for creating lifting power and the anti-cavitation, the water that above anti-cavitation, flows is directed to the rear reposefully.Therefore, water can not be trapped between device for creating lifting power and the anti-cavitation.In addition, device for creating lifting power can have simple structure, and wherein this device is set at the anti-cavitation top, and has downward sweptback bottom surface.
Preferably, said device for creating lifting power is made up of alae, and when seeing this boat propulsion engine from the side, this alae has roughly wing cross section.Therefore, boat propulsion engine can more steadily effectively rise through the wing device for creating lifting power more quickly.Correspondingly, hull can more steadily reach near horizontal alignment more quickly, overcomes bow wave from this orientation.Therefore, can reduce greatly after the hull setting in motion, to reach hull overcome bow wave by near the required time of horizontal alignment.Therefore, hull can steadily and apace quicken.
In addition, preferably, when seeing this boat propulsion engine from the rear, the width of said device for creating lifting power is no more than the width of this boat propulsion engine.Therefore, be installed in side by side under the situation on the stern, can prevent that these a plurality of device for creating lifting power from interfering with each other when boat propulsion engine turns to or tilt at a plurality of boat propulsion engines.
According to a sixth aspect of the invention; A kind of boat propulsion engine that is suitable for being installed on the hull is provided; This boat propulsion engine comprises main body and device for creating lifting power; This device for creating lifting power is set on the said main body, and wherein said device for creating lifting power comprises: first, this first constitute substantially horizontal first bottom surface; And second portion, this second portion constitutes and extends continuously backward from the rear end of said first bottom surface and sweptback second bottom surface downwards, wherein along the intensive aspect of longitudinal extension across entire first portion and second portion setting.
In the driving engine of arranging like this, when hull during from static setting in motion, can be effectively and effectively obtain lift through sweptback second bottom surface downwards.Boat propulsion engine and stern steadily and apace rise through this lift.When setting in motion, hull reaches near horizontal alignment fast and reposefully, and is very dark thereby stern can not flood, and borrows this orientation to overcome bow wave.Therefore, can reduce greatly after hull setting in motion hull reach overcome bow wave by near the required time of horizontal alignment.Therefore, hull can steadily and apace quicken.
In this arrangement, the second portion of the first of formation level first bottom surface and formation inclination second bottom surface is provided with continuously, and passes through along vertical intensive aspect reinforcement across entire first portion and second portion extension.Therefore first and second portion are complimentary to one another, thereby have increased rigidity.The rear end of first and can fully increase from the rigidity of this downward sweptback second portion in rear end particularly.Therefore, can keep the angle of inclination of second bottom surface with respect to first bottom surface.Therefore, can be effectively through high rigidity device for creating lifting power and effectively obtain lift.
Preferably, when seeing this boat propulsion engine from the rear, said intensive aspect is arranged in the width range of this boat propulsion engine.Therefore, when hull travelled forward, the wave of the front surface of intensive aspect (vertically front end) formed resistance and can reduce, and splashing of can reducing that motion by first and second bottom surfaces produces.Therefore, can produce pulsation-free lift through device for creating lifting power, and can realize propelled at high velocity reposefully.
In addition, preferably, said intensive aspect is set on the end face of said device for creating lifting power.Therefore, intensive aspect is arranged on the opposing face of first bottom surface and second bottom surface.Correspondingly reduce wave and formed resistance, thereby can realize promoting more stably action.
In addition, preferably, said intensive aspect is set on the left and right sides edge of said device for creating lifting power.Therefore, strengthen continuously, can guarantee to resist device for creating lifting power vertically and the rigidity of horizontal curvature because first and second portion are reinforced body (vertically wall).
In addition, preferably, said intensive aspect is set on the end face of said device for creating lifting power.Therefore, intensive aspect is arranged on the opposing face of first bottom surface and second bottom surface.Correspondingly reduce wave and formed resistance, thereby can realize promoting more stably action.
In addition, preferably, said intensive aspect is set on the bottom surface of said device for creating lifting power.Therefore, intensive aspect can be configured to left and right sides edge from device for creating lifting power to the vertical wall that extends below.Can make the size of the whole device for creating lifting power that constitutes by first, second portion and intensive aspect less relatively.And, can guarantee to resist the rigidity of the vertical and horizontal curvature of device for creating lifting power.
According to a seventh aspect of the invention; A kind of boat propulsion engine that is suitable for being installed on the hull is provided; This boat propulsion engine comprises main body and device for creating lifting power, and this device for creating lifting power is attached on the said main body, and wherein said device for creating lifting power has the part that constitutes downward alignment surfaces; And the part of the downward alignment surfaces of said formation is arranged in the width range of this boat propulsion engine, and has the intensive aspect that extends longitudinally.
In the driving engine of arranging like this,, can effectively and effectively obtain lift through downward alignment surfaces when hull during from static setting in motion.Boat propulsion engine and stern steadily and apace rise through this lift.When setting in motion, hull reaches near horizontal alignment fast and reposefully, and is very dark thereby stern can not flood, and borrows this orientation to overcome bow wave.Therefore, can significantly reduce after hull setting in motion hull reach overcome bow wave by near the required time of horizontal alignment.Therefore, hull can steadily and apace quicken.
In this arrangement, remain in the width range of boat propulsion engine through the surperficial part that faces down that will constitute device for creating lifting power, the wave that can reduce the front surface of intensive aspect forms resistance and can make to splash and minimizes.Therefore, when hull during from static setting in motion, can be effectively and effectively obtain lift.And, having the intensive aspect that extends longitudinally owing to constitute the part on the surface that faces down, rigidity increases.Therefore, can be effectively through high rigidity device for creating lifting power and effectively obtain lift.
Description of drawings
Only describe some preferred implementation of the present invention in detail below with reference to accompanying drawings with by way of example, wherein:
Fig. 1 is the view that is equipped with according to the hull of the boat propulsion engine of first embodiment of the invention;
Fig. 2 is the lateral plan of the boat propulsion engine shown in Fig. 1;
Fig. 3 is the block diagram of the boat propulsion engine shown in Fig. 2;
Fig. 4 is the back view of the boat propulsion engine shown in Fig. 2;
Fig. 5 is the block diagram according to first modification of the boat propulsion engine of first embodiment of the invention;
Fig. 6 is the block diagram according to second modification of the boat propulsion engine of first embodiment of the invention;
Fig. 7 is the lateral plan according to the 3rd modification of the boat propulsion engine of first embodiment of the invention;
Fig. 8 is the block diagram according to the boat propulsion engine of second embodiment of the invention;
Fig. 9 is the lateral plan of the boat propulsion engine shown in Fig. 8;
Figure 10 is the back view of the boat propulsion engine shown in Fig. 8;
Figure 11 is the block diagram according to first modification of the boat propulsion engine of second embodiment of the invention;
Figure 12 is the block diagram according to second modification of the boat propulsion engine of second embodiment of the invention;
Figure 13 is the lateral plan according to the boat propulsion engine of third embodiment of the invention;
Figure 14 is the lateral plan according to first modification of the boat propulsion engine of third embodiment of the invention;
Figure 15 is the lateral plan according to second modification of the boat propulsion engine of third embodiment of the invention;
Figure 16 is the lateral plan according to the boat propulsion engine of four embodiment of the invention;
Figure 17 is according to the boat propulsion engine of fifth embodiment of the invention and the exploded drawings of device for creating lifting power;
Figure 18 is the exploded drawings of the device for creating lifting power shown in Figure 17;
Figure 19 is for describing the figure that device for creating lifting power is assembled in the mode on the boat propulsion engine shown in Figure 17.
Figure 20 is the lateral plan of boat propulsion engine shown in Figure 19 and device for creating lifting power;
Figure 21 is the back view of boat propulsion engine shown in Figure 19 and device for creating lifting power;
Figure 22 is the exploded drawings according to the modification of the device for creating lifting power of fifth embodiment of the invention;
Figure 23 is the block diagram according to the boat propulsion engine of sixth embodiment of the invention;
Figure 24 is the lateral plan of the boat propulsion engine shown in Figure 23;
Figure 25 is the back view of the boat propulsion engine shown in Figure 23;
Figure 26 is the view that is equipped with according to the hull of the boat propulsion engine of seventh embodiment of the invention;
Figure 27 is the lateral plan of the boat propulsion engine shown in Figure 26;
Figure 28 is the block diagram of the boat propulsion engine shown in Figure 26;
Figure 29 is the back view of the boat propulsion engine shown in Figure 26;
Figure 30 is the block diagram of the device for creating lifting power shown in Figure 28;
Figure 31 cuts open the cutaway view of getting for the line 31-31 along Figure 30;
Figure 32 cuts open the cutaway view of getting for the line 32-32 along Figure 30;
The exploded drawings that Figure 33 separates for device for creating lifting power shown in Figure 28 and boat propulsion engine;
Figure 34 is the block diagram according to first modification of the boat propulsion engine of seventh embodiment of the invention;
Figure 35 is the block diagram according to second modification of the boat propulsion engine of seventh embodiment of the invention;
Figure 36 is the view that is equipped with according to the hull of the boat propulsion engine of eighth embodiment of the invention; And
Figure 37 is the view that is equipped with according to the hull of the boat propulsion engine of the modification of eighth embodiment of the invention;
The specific embodiment
At first, referring to figs. 1 through the boat propulsion engine of Fig. 4 explanation according to first embodiment.
The center of gravity of hull Si be positioned adjacent to hull the center and away from the boat propulsion engine 1 that is installed on the stern St, as shown in Figure 1.
Boat propulsion engine 1 comprises engine section 6 (drive source 6), screw propeller 8 (propelling unit), rotary shell 9 and after-poppet 10, and is as depicted in figs. 1 and 2.Driving engine can be regarded as outboard engine, because engine installation is in the outside of hull Si.Below will describe boat propulsion engine 1 in detail.
Boat propulsion engine 1 has by the car bonnet 2 of the top, is positioned at this end of covering 2 belows cover 3, is positioned at the inner space of covering the extensional shell 4 of 3 belows and being positioned at gear case 5 encirclements of these housing 4 belows in this end.Car bonnet 2, end cover 3, extensional shell 4 and gear case 5 constitute the main body of boat propulsion engine 1.This main body is extended with respect to hull Si perpendicular.
Extensional shell 4 has the aligning surface 4b corresponding to the upper surface of gear case 5, and is as shown in Figure 2.Gear case 5 has the change speed gear box 5a that is formed on the middle part.Extensional shell 4 is made up of aluminum alloy or other this type of lightweight metal materials with gear case 5.
Car bonnet 2 inside hold engine section 6.Engine section 6 is for having the multi-cylinder engine of a plurality of cylinders.Engine section 6 is so-called vertical engine, and wherein bent axle and camshaft are with vertical orientated layout.Cylinder with the mode of axis normal orientation with vertical orientated layout.
The engine head 6a of engine section 6 is arranged on (comprising cylinder head and head-shield) rear portion of boat propulsion engine 1.The engine main body 6b of engine section 6 is arranged on (comprising cylinder block and crankcase) middle part of boat propulsion engine 1.The bottom of engine section 6, promptly the bottom 6c of engine main body 6b extend in the end cover 3.The engine installation housing 7 of engine section 6 is arranged on the bottom 6c below of engine main body 6b, and is provided with food tray 6d.In addition, engine section 6 comprises throttle gate 6f.
Boat propulsion engine 1 has the axle drive shaft 6e that links to each other with the bent axle of engine section 6, the output shaft 5b that links to each other with axle drive shaft 6e through gear mechanism 5c and the screw propeller 8 that links to each other with output shaft 5b.More particularly, axle drive shaft 6e to extending below, and is connected to gear mechanism 5c in the bottom from the end of bent axle.In other words, axle drive shaft 6e perpendicular is extended and the inside of bottom 6c, engine installation housing 7 and extensional shell 4 through engine main body 6b extends in the gear case 5.Gear mechanism 5c is contained among the change speed gear box 5a.Output shaft 5b extends back from gear mechanism 5c, and screw propeller 8 is positioned at the rear end.Screw propeller 8 is for producing the propelling unit of propulsive force.The power capacity that is produced by engine section 6 is delivered to screw propeller 8 through axle drive shaft 6e, gear mechanism 5c and output shaft 5b.
Boat propulsion engine 1 is attached to stern St through rotary shell 9 and after-poppet 10, and is as depicted in figs. 1 and 2.Rotary shell 9 is arranged among the recess 1a of boat propulsion engine 1 with after-poppet 10.Recess 1a is for being formed on vertical depression of boat propulsion engine 1 front portion (near the part of stern St), and the preceding lower part of cover 3 extends to the front portion of extensional shell 4 end of from.
More particularly, the S. A. 9a of rotary shell 9 supports boat propulsion engine 1 with the mode that allows driving engine to swing to the left and right.Therefore, boat propulsion engine 1 can turn to.After-poppet 10 also supports boat propulsion engine 1 with the mode that allows driving engine to swing up and down through rotary shell 9.
The lower part that comprises screw propeller 8 of boat propulsion engine 1 is submerged in the water under usual condition.
The lower part of boat propulsion engine 1 comprises an anti-cavitation 11, two splash boards 12,13 and device for creating lifting power 20 up and down.
Anti-cavitation 11 is used for preventing that air from sucking screw propeller 8, and also can be described as anti-air plate for being installed in the plate-shaped member of screw propeller 8 tops.In other words, bottom and spaced fixed distance that anti-cavitation 11 is positioned at boat propulsion engine 1 are positioned at screw propeller 8 tops, and anti-cavitation covers the top of screw propeller 8.More particularly, anti-cavitation 11 forms the left and right side and the outwardly directed horizontal wing shape in surface, back from gear case 5.
Anti-cavitation 11 is attached to the height of boat propulsion engine 1 and sets as follows.Particularly, when boat propulsion engine 1 was installed on the hull Si, the height of anti-cavitation 11 is set to and is positioned at the height place substantially the same with the bottom of hull Si, and was as shown in Figure 1.
Two splash boards 12,13 are plate-shaped member, and anti-sealing upwards splashes from water plane.Following splash board 12 is positioned at anti-cavitation 11 tops and fixed interval distance.Last splash board 13 is positioned at splash board 12 tops and fixed interval distance down.
More particularly, following splash board 12 forms top at gear case 5 from the outwardly directed horizontal aliform of front surface and left and right side.Last splash board 13 forms bottom at extensional shell 4 from the outwardly directed horizontal aliform of front surface and left and right side.
Therefore, anti-cavitation 11 is formed on the gear case 5 with following splash board 12.Last splash board 13 is formed on the extensional shell 4.
Device for creating lifting power 20 is by the plate-like piece 21 that is arranged on boat propulsion engine 1 middle part, and promptly plate body 21 constitutes.Plate body 21 is positioned at splash board 13 tops and fixed interval distance, and is made up of the horizontal plate that is integrally formed on the extensional shell 4.More particularly, plate body 21 extends to the flat board of position at the 11a rear, rear end of anti-cavitation 11 for the longitudinal middle part from extensional shell 4.
The front edge of plate body 21 has along the arc-shaped concave 21r of the back surperficial 4a of extensional shell 4, as shown in Figures 2 and 3.Therefore, recess 21r centers on the surperficial 4a in back and is integrally formed on the surperficial 4a in back.
The front end 21a of plate body 21 is positioned at the longitudinal middle part of extensional shell 4.The rear end 21d of plate body 21 is positioned at the back upper place of the rear end 11a of anti-cavitation 11, promptly in the back upper place of screw propeller 8.
Plate body 21 is integrally moulded, and it constitutes by the horizontal forebody 21b that extends back from front end 21a, the horizontal pars intermedia 21c that further extends back from the rear end of forebody 21b with from the 21e of rear-inclined portion that the rear end 21i (curve 21i) of pars intermedia 21c extends rearward to rear end 21d.
Forebody 21b is set at the left and right sides of extensional shell 4.In other words, forebody 21b forms flat forked (form of bifurcation), so that the back surperficial 4a on from the left and right sides around the periphery wall of extensional shell 4.Pars intermedia 21c is arranged in extensional shell 4 rears.Curve 21i is the border between pars intermedia 21c and the 21e of rear-inclined portion.
The whole shape of plate body 21 from above can be regarded as essentially rectangular when seeing.
Four line P1-P4 shown in Fig. 2 such as delimit.The first line P1 is the horizon of the end face 11b of extend through anti-cavitation 11.The second line P2 is the bottom surface 21g (downwards alignment surfaces 21g) of extend through plate body 21, promptly along the horizon of the bottom surface 21g of forebody 21b and pars intermedia 21c.The second line P2 is parallel to the first line P1.Three-way P3 is the perpendicular line of the rear end 11a of extend through anti-cavitation 11.Nature, the three-way P3 and the first line P1 and the second line P2 meet at right angles.The 4th line P4 is the bottom surface 21h bevelled straight line of the 21e of rear-inclined portion in the plate body 21.
Border between bottom surface 21g (alignment surfaces 21g downwards) and the bottom surface 21h (inclined surface 21h) is represented by curve 21i.Curve 21i is positioned at the back upper place of the rear end 11a of anti-cavitation 11.In other words, curve 21i is arranged in the rear of the three-way P3 of Fig. 2.Therefore, the bottom surface 21h of the 21e of rear-inclined portion is positioned at the back upper place of the rear end 11a of anti-cavitation 11, promptly in the back upper place of screw propeller 8.
In Fig. 2, the tiltangle 1 of the 21e of rear-inclined portion, promptly (line P4 is with respect to the angle θ 1 of line P2 with respect to bottom surface 21g bevelled angle θ 1 for inclined surface 21h; Acute angle), preferably be set in the scope of 1≤45 ° of 0 °≤θ.In addition, particularly preferably be, tiltangle 1 is set at about 30 °.Tiltangle 1 also can be described as the angle of attack.
Bottom surface 21g from the end face 11b of anti-cavitation 11 to plate body 21, promptly the distance of separation from the first line P1 to the second line P2 (first distance of separation) is a1.Distance of separation (second distance of separation) from the rear end 11a of anti-cavitation 11 to the rear end 21d of plate body 21 is a2.The second distance of separation a2 is greater than 90% of the first distance of separation a1.Particularly, between the two relation is " (0.9 * a1)＜a2 ".
More particularly, the second distance of separation a2 is substantially equal to (a1 ≈ a2) or greater than (the first distance of separation a1 of a1＜a2).Yet (under the situation of a1＞a2), preferably the second distance of separation a2 is greater than 90% of the first distance of separation a1 less than the first distance of separation a1 at the second distance of separation a2.The second distance of separation a2 also can be the shortest distance from the rear end 11a of anti-cavitation 11 to the bottom surface 21h of plate body 21.
As shown in Figure 4, when when boat propulsion engine 1 is seen at the rear, the width W 1 of plate body 21, promptly the width W 1 of device for creating lifting power 20 is preferably set to the maximum width W2 (W1 ≈ W2) that approximates boat propulsion engine 1 greatly, or is slightly less than maximum width W2 (W1＜W2).Further preferably the width W 1 of plate body 21 is set at much larger than the external diameter of screw propeller 8.Its reason is following.
For example, in some cases, according to size and other characteristics at the hull Si shown in Fig. 1, a plurality of boat propulsion engines 1 are installed on the stern St side by side.Through being set, a plurality of boat propulsion engines 1 can increase the power that advances hull Si.All boat propulsion engines 1 are swung to the left and right when hull Si turns to.
If the width W 1 of device for creating lifting power 20 is greater than the maximum width W2 of boat propulsion engine 1; Then, hull has such possibility when turning to; That is: a plurality of device for creating lifting power 20 interfere each other, or device for creating lifting power 20 interferes with adjacent boat propulsion engine 1.Preferably the width W 1 to plate body 21 limits to avoid such interference.
And when boat propulsion engine 1 was seen at the rear, a plurality of support components 24 were disposed in the scope of width W 3 of extensional shell 4 when as shown in Figure 4.More preferably, these a plurality of support components 24 are arranged to not stretch out the profile above extensional shell 4 to the side.Therefore, when hull Si travels forward, can reduce to form resistance, during motion of ship, can reduce and splash, and can realize that pulsation-free promotes action by the wave that support component 24 causes.
Above-mentioned device for creating lifting power 20 is summarized as follows.
As shown in Figures 2 and 3, device for creating lifting power 20 has and is positioned at extensional shell 4 (main body 4) rear at least and with respect to the surface (bottom surface 21g and bottom surface 21h) of extensional shell 4 lateral widenings.In addition; Device for creating lifting power 20 comprises the 21b of first, 21c and second portion 21e; The 21b of first, 21c constitute the first substantially parallel bottom surface 21g, and second portion 21e constitutes the curve 21i extension and the sweptback second bottom surface 21h continuously downwards backward from the first bottom surface 21g.
Then, the operation of device for creating lifting power 20 is described with seeing figures.1.and.2.
When the propulsive force of hull Si through boat propulsion engine 1 travels forward, in the upper and lower surfaces of the downward sweptback rear-inclined 21e of portion, produce pressure reduction.Thus, in plate body 21 (device for creating lifting power 20), produce hoisting force or so-called lift.
When boats and ships stopped, because the buoyancy of hull Si and the balance between the center of gravity, hull Si kept certain rise orientation on the bow.When boats and ships stopped, fore kept rising, and the fore-and-aft tilt angle of hull Si is for example about 5 °.Under this state, the bottom surface 21g of plate body 21 with respect to the horizontal plane becomes low-angle, perhaps is called as recess angle (recessed angle) (for example about 5 °).
Then, when advancing beginning, act on a power so that boat propulsion engine 1 side of hull is sunk.Being in fore-and-aft tilt angle when static is under the about 5 ° situation; Stern St sinks from this position owing to quicken; And the fore-and-aft tilt angle reaches maximum 15 °, so 21h angle with respect to the horizontal plane in bottom surface increases 15 ° from 30 ° of previous angles, making this angle is 45 °.Because this angle is 45 °, vertical force component (lift) is no more than horizontal component of force.Therefore, can improve acceleration capability in this case, because upwards resistance is no more than resistance backward.
This lift makes hoisting force act on from bottom to top on the plate body 21.Because the 21e of rear-inclined portion recedes downwards, this hoisting force acts on the continuous curve as repeated boad through rake and acts on all peripheral part.
In order to handle this repeated boad, a plurality of support components 24 (support component 24) are arranged to extend up to forward from the end face 21f of the pars intermedia 21c of plate body 21 the back surperficial 4a of extensional shell 4.Support component 24 has realized being used for the effect of supporter of the repeated boad of supporting role on plate body 21,, is used to strengthen the effect of the doubler of plate body 21 that is.
Particularly, support component 24 is made up of three quite thick upright plates.All upright plates are separated from each other to the left and right and are parallel with erectility.The bottom 24a of support component 24 is set on the end face 21f integratedly, the boundary vicinity between pars intermedia 21c and the 21e of rear-inclined portion.
The front end 24b of support component 24 is wholely set on the top of the back surperficial 4a of the periphery wall of extensional shell 4 (main body 4 of boat propulsion engine 1).By this way, support component 24 makes the end face 21f of plate body 21 be connected integratedly with the back surperficial 4a of extensional shell 4.Particularly, the front end 24b of support component 24 is set on perisporium vertical latter half of of extensional shell 4.
Because the front end 24b of support component 24 is set on the back surperficial 4a of extensional shell 4, the distance between the end of support component 24 can shorten, thereby can reduce the size of support component 24.In addition, can reduce to form resistance from propelling resistance that is installed in the support component 24 on the device for creating lifting power 20 and wave.Also can when hull Si moves, reduce and splash, and can realize that pulsation-free promotes action.Term " wave formation resistance " is meant the formed resistance of wave that is travelled forward and produced by hull Si.
Plate body 21 can be configured to one with extensional shell 4 with support component 24.For example, plate body 21 can be integrally moulded with extensional shell 4 with support component 24.Plate body 21 also can be attached to extensional shell 4 through welding or other these class methods with support component 24.Plate body 21 also can be attached to extensional shell 4 with the one mode with support component 24.
Support component 24 is formed by three slabs structure, these slabs to the left and right separately and its cross section extend along the direction of propulsion of boat propulsion engine 1, like Fig. 2, Fig. 3 and shown in Figure 4.The end face of plate body 21 from horizontal pars intermedia 21c to the downward sweptback rear-inclined 21e of portion supported by support component 24.The lift that support component 24 has increased device for creating lifting power 20 produces surperficial 21h opposing is produced the lift of surperficial 21h (bottom surface 21h) generation by lift rigidity.
As shown in Figure 4, when when vertically seeing extensional shell 4, support component 24 is arranged in the maximum width W3 of extensional shell 4.Particularly, when along the perisporium of the main body of boat propulsion engine 1 vertically especially when the place ahead is seen, support component 24 is arranged on (in the width of the submerged condition of boat propulsion engine 1) in the maximum width scope.Therefore, the wave in the time of can reducing boat propulsion engine 1 and advance boats and ships forms resistance, also can reduce to have the propelling resistance of the boat propulsion engine 1 of device for creating lifting power 20.
As stated; When boat propulsion engine 1 operation; Hull Si setting in motion; At this moment the lower part that comprises device for creating lifting power 20 of boat propulsion engine 1 is submerged (as shown in Figure 1), and stern St reduces under the center of gravity of the weight of boat propulsion engine 1 and hull Si and the equilibrium activity between the buoyancy.
When the boats and ships setting in motion, comprise that the stern St of boat propulsion engine 1 rises through the lifting action of device for creating lifting power 20.The propulsive force of boat propulsion engine 1 allows to produce fast and reposefully lift.This lift is through receding downwards and being positioned at screw propeller 8 tops and the effect of the inclined surface 21h that extends back is upwards risen plate body 21.
Load on the device for creating lifting power 20 is supported by support component 24.
As stated, the relation of the first distance of separation a1 and the second distance of separation a2 is " a1 ≈ a2 ", and " a1＜a2 " be " (0.9 * a1)＜a2 " perhaps.The water that flows backward along the end face 11b of anti-cavitation 11 is along the tilted deflecting of the bottom surface 21h of the 21e of rear-inclined portion, and is discharged to the rear portion reposefully and can near the 21d of rear end, do not hindered.
Therefore, when the boats and ships setting in motion, boat propulsion engine 1 can rise with stern St fast and reposefully, and the orientation of the hull Si in the motion can become near level in the short time at the utmost point.Therefore, being attached with the hull Si of boat propulsion engine 1 can be fast and become reposefully at a high speed.
Then, will first modification according to the boat propulsion engine 1 of first embodiment be described with reference to Fig. 5.
The boat propulsion engine 1 of first modification is characterised in that the support component 24 of first embodiment becomes support component 34, and is as shown in Figure 5.All the other structures are identical with the structure of first embodiment shown in Fig. 1 to Fig. 4, therefore use identical Reference numeral, and the descriptions thereof are omitted.
Support component 34 (supporter 34) is characterised in that rearmost end 34c extends near the rear end 21d of the 21e of rear-inclined portion, and first embodiment shown in structure and Fig. 1 to Fig. 4 basic identical in addition.
More particularly, the bottom 34a of support component 34 is arranged on the end face of end face 21f and the 21e of rear-inclined portion of pars intermedia 21c integratedly.The front end 34b of support component 34 is arranged on the top of back surperficial 4a of the periphery wall of extensional shell 4 integratedly.Therefore, support component 34 makes pars intermedia 21c be connected with the back surperficial 4a one of extensional shell 4 with the 21e of rear-inclined portion.
According to first modification; The rigidity of support component 34 is improved; Because the pars intermedia 21c that support component 34 supports the rear-inclined 21e of portion and links to each other with this rear-inclined portion, opposing is especially resisted the propulsive force that is produced by the 21e of rear-inclined portion by the propulsive force that device for creating lifting power 20 produces.
Then, will second modification according to the boat propulsion engine 1 of first embodiment be described with reference to Fig. 6.
The boat propulsion engine 1 of second modification is characterised in that the support component 34 (referring to Fig. 5) of first modification becomes support component 34A, and is as shown in Figure 6.It is the general triangular shape that support component 34A (supporter 34A) forms when seeing from the side, therefore angulation between bottom 34a and front end 34b.In addition, structure is identical with the structure of first modification as shown in Figure 5, therefore uses identical Reference numeral and omits explanation.
Then, will the 3rd modification according to the boat propulsion engine 1 of first embodiment be described with reference to Fig. 7.
The boat propulsion engine 1 of the 3rd modification is characterised in that do not have the support component 24 (referring to Fig. 3) of first embodiment, and is as shown in Figure 7.In addition, structure is with identical to the structure of first embodiment shown in Figure 4 like Fig. 1, and also the descriptions thereof are omitted therefore to use identical Reference numeral.
The plate body 21 of device for creating lifting power 20 has the structure identical with first embodiment, and is formed on the back surperficial 4a of extensional shell 4, perhaps combines through welding or other these class methods.
The 3rd modification is preferred for the fraction horsepower boat propulsion engine 1 that is used to advance less relatively hull Si (referring to Fig. 1).
Then, will the boat propulsion engine according to second embodiment be described with reference to Fig. 8 to Figure 10.
The boat propulsion engine 1 of second embodiment is characterised in that; With the difference of first embodiment be that device for creating lifting power 20 (referring to Fig. 3) becomes device for creating lifting power 40; And a plurality of support components 24 (referring to Fig. 3) become a support component 44, like Fig. 8, Fig. 9 and shown in Figure 10.In addition, structure is identical to the structure of first embodiment shown in Figure 4 with Fig. 1, and also the descriptions thereof are omitted therefore to use identical Reference numeral.
The device for creating lifting power 40 of second embodiment by plate body 21 (main body 21) and with constitute in the last integrally formed lateral edge portion of left and right edges 21j, the 21j of plate body 21 42,42.The structure of plate body 21 is identical with the structure of first embodiment, and also the descriptions thereof are omitted therefore to use identical Reference numeral.
Because from the left and right edges 21j of plate body 21, the 21j existence to the lateral edge portion that extends below 42,42 (intensive aspect 42,42), it is the concave cross section of orientation downwards when the rear is seen that device for creating lifting power 40 has as Figure 10.Thus, the rigidity of device for creating lifting power 40 increases.
More particularly; Left side edge portion 42 is general triangular in lateral plan; And bottom 42a is downward-sloping backward, thereby the front end 21m of the rear end 21k of the left side edge 21j of plate body 21, this lateral edges 21j, this lateral edges 21j couples together, like Fig. 9 and shown in Figure 10.The part of the curve 21i that is arranged in main body 21 of lateral edges 42 is outstanding farthest downwards.On the part of the rear end of lateral edges 21j 21k and front end 21m, do not form lateral edges 42 basically.
The support component 44 of second embodiment has the support component 34 similar structures with first modification shown in Figure 5, and has only a lateral middle that is positioned at boat propulsion engine 1, the i.e. lateral center of back surperficial 4a on the periphery of extensional shell 4.
The forebody 21b that support component 44 extends to plate body 21 is attached to the base portion at the back surperficial 4a place of extensional shell 4, and forms quite thick parts, is the general triangular shape when seeing from the side.
The rearmost end 44c of support component 44 (supporter 44) extends near the rear end 21d of the 21e of rear-inclined portion.The bottom 44a of support component 44 is set on the end face of end face 21f and the 21e of rear-inclined portion of pars intermedia 21c integratedly.The front end 44b of support component 44 is arranged on the top of back surperficial 4a of the periphery wall of extensional shell 4 integratedly.Thus, support component 44 makes pars intermedia 21c be connected integratedly with the back surperficial 4a of extensional shell 4 with the 21e of rear-inclined portion.
Thereby according to second embodiment, possible is that (1) increases the thickness of support component 44, although have only a support component; (2) be provided with to the lateral edge portion that extends below 42,42 through the left and right sides, the rear end 21k of lateral edge portion 42 is connected with front end 21m integratedly at support component 44; And (3) extend to the end face of the 21e of rear-inclined portion through the rear portion that makes support component 44, further increases the support stiffness of device for creating lifting power 40.
Then, will first modification according to the boat propulsion engine 1 of second embodiment be described with reference to Figure 11.
The boat propulsion engine 1 of first modification is characterised in that the support component 44 of second embodiment becomes support component 44A, and is shown in figure 11.The rearmost end 44c of support component 44A is positioned at the anterior curve 21i place of the 21e of rear-inclined portion.It also is acceptable that the rearmost end 44c of support component 44A does not extend to the 21e of rear-inclined portion by this way.Because plate body 21 is supported by left and right sides edge part 42,42, also can obtain high rigidity under these circumstances.In addition, structure is identical with structure in second embodiment shown in Fig. 8 to Figure 10, therefore uses identical Reference numeral and the descriptions thereof are omitted.
Then, will second modification according to the boat propulsion engine 1 of second embodiment be described with reference to Figure 12.
The boat propulsion engine 1 of second modification is characterised in that the support component 44 of second embodiment becomes support component 44B, and is shown in figure 12.Because in top edge 44d, form recess 44e, support component 44B has roughly L shaped shape when seeing from the side.Support component 44B also extends to the end face of the 21e of rear-inclined portion of second embodiment, thereby can increase the support stiffness of the 21e of rear-inclined portion.In addition, structure is identical with structure in second embodiment shown in Fig. 8 to Figure 10, therefore uses identical Reference numeral and the descriptions thereof are omitted.
Then, will describe boat propulsion engine 1 with reference to Figure 13 according to the 3rd embodiment.
The boat propulsion engine 1 of the 3rd embodiment is characterised in that different with first embodiment is that device for creating lifting power 20 (referring to Fig. 3) becomes device for creating lifting power 50, and a plurality of support component 24 (referring to Fig. 3) becomes support component 52, and is shown in figure 13.In addition, structure is with identical in the structure of first embodiment shown in Fig. 1 to Fig. 4, and also the descriptions thereof are omitted therefore to use identical Reference numeral.
The device for creating lifting power 50 of the 3rd embodiment is made up of single plate body 51.Plate body 51 is arranged on the top of back surperficial 4a of the periphery wall of extensional shell 4 integratedly, and is the flat board of essentially rectangular when seeing for from the top time.
More particularly, plate body 51 is with the downward sweptback flat board of linear mode.The tiltangle 2 of plate body 51 (the recess angle θ 2) tiltangle 1 with the 21e of rear-inclined portion shown in figure 2 basically is identical.In addition, plate body 51 is arranged on anti-cavitation 11 and splash board 12,13 tops.In other words, plate body 51 is orientated to that front end 51a is positioned at the high position and rear end 51b is positioned at lower position.Identical in the relation of plate body 51 and plate 11,12 and 13 and first embodiment.
In addition, the end face 51c of plate body 51 and bottom surface 51d put down.The anterior 51e of plate body 51 forms forked (form of bifurcation) in planar view, and be connected to one and from the left and right sides the back surperficial 4a on the periphery wall of extensional shell 4.
Support component 52 is arranged in plate body 51 belows.Particularly, support component 52 is single vertical plate, the middle part of the lateral middle of the bottom surface 51d of its connection plate body 51 and the back surperficial 4a of extensional shell 4.The front end 52a of support component 52 has specified altitude assignment, and is formed on the middle part of the back surperficial 4a of extensional shell 4.The bottom edge 52b of support component 52 upwards is orientated backward.The top 52c of support component 52 is formed on the lateral middle of the bottom surface 51d of plate body 51.Top 52c is arranged on the place ahead of the rear end 51b of plate body 51.Support component 52 is not limited to only parts, and a plurality of support components 52 can be provided with to the left and right apart from each other.
Therefore, according to the 3rd embodiment, comprise that the whole plate body 51 of forebody recedes with angle θ 2 from direction of propulsion downwards.Therefore, when hull Si setting in motion, plate body 51 can be very fast and boat propulsion engine 1 and stern St (referring to Fig. 1) is risen.Therefore, the hull Si (referring to Fig. 1) of motion in the extremely short time near horizontal alignment.Thus, hull Si can be fast and is become reposefully at a high speed.
In addition, because the forebody of plate body 51 also tilts, even under the darker situation of the drinking water of hull Si, also can realize promoting action.Therefore, device for creating lifting power 50 has the application of wider model.
Then, will describe first modification with reference to Figure 14 according to the boat propulsion engine 1 of the 3rd embodiment.
The boat propulsion engine 1 of first modification is characterised in that the support component 52 of the 3rd embodiment becomes support component 53, and is shown in figure 14.
Support component 53 is arranged in plate body 51 tops.Particularly, the single vertical plate that links to each other with the middle part of the back surperficial 4a of extensional shell 4 for the lateral middle of the end face 51c that makes plate body 51 of support component 53.The front end 53a of support component 53 has specified altitude assignment, and is formed on the middle part of the back surperficial 4a of extensional shell 4.The tip edge 53b of support component 53 is orientated downwards backward.The bottom edge 53c of support component 53 is formed on the lateral middle of the end face 51c of plate body 51.The rear end 53d of support component 53 is arranged on the place ahead of the rear end 51b of plate body 51.Support component 53 is not limited to only parts, and a plurality of support components 53 can be provided with to the left and right apart from each other.
In addition, structure is identical with the structure of the 3rd embodiment shown in Figure 13, and also the descriptions thereof are omitted therefore to use identical Reference numeral.
Then, will describe second modification with reference to Figure 15 according to the boat propulsion engine 1 of the 3rd embodiment.
Second modification is characterised in that do not have the support component 52 (referring to Figure 13) of the 3rd embodiment, and is shown in figure 15.In addition, structure is with identical in the structure of the 3rd embodiment shown in Figure 13, and also the descriptions thereof are omitted therefore to use identical Reference numeral.
The plate body 51 of device for creating lifting power 50 has the structure identical with the 3rd embodiment, and is formed on the back surperficial 4a of extensional shell 4, perhaps combines through welding or other these class methods.
This modification is preferred for the fraction horsepower boat propulsion engine 1 that is used to advance less relatively hull Si (referring to Fig. 1).
Then, will the boat propulsion engine 1 according to the 4th embodiment be described with reference to Figure 16.
The boat propulsion engine 1 of the 4th embodiment is characterised in that; What they were different with first embodiment is that device for creating lifting power 20 (referring to Fig. 3) becomes device for creating lifting power 60; And a plurality of support components 24 (referring to Fig. 3) become a plurality of support components 62, and are shown in figure 16.In addition, structure is with identical in the structure of first embodiment shown in Fig. 1 to Fig. 4, and also the descriptions thereof are omitted therefore to use identical Reference numeral.
Device for creating lifting power 60 is arranged to the back surperficial 4a distance to a declared goal Cr backward from the lower part of extensional shell 4, and is attached to integratedly on the surperficial 4a in back through support component 62 (supporter 62).
More particularly, device for creating lifting power 60 is made up of single alae 61.Alae 61 is arranged to from the lower part of the back surperficial 4a of extensional shell 4 distance to a declared goal Cr backward, and has from the direction of propulsion of boat propulsion engine 1 with recess angle sweptback wing shape downwards.
More particularly, it is the essentially rectangular shape that alae 61 forms when the top is seen, and forms when seeing from the side from the face of the front end 61a of the surperficial 4a in back sweptback roughly wing cross section downwards.In other words, when seeing from the side, alae 61 has from front edge 61a towards the downward sweptback arcuate shape of lagging dege 61b, and bottom surface 61d forms the concave shape with slight arc.The leaning angle of alae 61 is substantially the same with the tiltangle 1 of the 21e of rear-inclined portion shown in figure 2.
In addition, alae 61 is arranged on anti-cavitation 11 and splash board 12,13 tops.Particularly, alae 61 is orientated to that front edge 61a is positioned at the high position and lagging dege 61b is positioned at lower position.Identical in the relation of alae 61 and plate 11,12 and 13 and first embodiment.
Support component 62 is arranged on the below of alae 60.Particularly, support component 62 is two vertical plate (only illustrating one among Figure 16), and they link to each other the bottom surface 61d of alae 61 with the back surperficial 4a of extensional shell 4.These two support components 62 are provided with to the left and right apart from each other.
The front end 62a of support component 62 has specified altitude assignment, and integrally formed with the middle part of the back surperficial 4a of extensional shell 4.The rear end 62b of support component 62 is arranged on the place ahead of the lagging dege 61b of alae 61.The top 62c of support component 62 is formed on the bottom surface 61d of alae 61.
The boat propulsion engine 1A of the 5th embodiment then, will be described with reference to Figure 17 to Figure 21.
The boat propulsion engine 1A of the 5th embodiment is characterised in that the extensional shell 4 (referring to Fig. 3) of first embodiment becomes the structure of leg shape housing (leg case) 70 with cover 104 combinations, and cover 104 is provided with device for creating lifting power 120, arrives shown in Figure 21 like Figure 17.In addition, the structure of the boat propulsion engine 1 in the structure of boat propulsion engine 1A and first embodiment is basic identical.In addition, all the other structures also with first embodiment shown in Fig. 1 to Fig. 4 in structure identical, therefore use identical Reference numeral and the descriptions thereof are omitted.
The boat propulsion engine 1A of the 5th embodiment at first, will be described with reference to Fig. 2 and Fig. 3 based on Figure 17.Boat propulsion engine 1A has leg shape housing 70 rather than extensional shell 4 (referring to Fig. 3), and the periphery of leg shape housing 70 is covered by cover 104.
Leg shape housing 70 is the parts that hold between end cover 3 and gear case 5, and itself and extensional shell 4 are similar, has realized the effect identical with extensional shell 4 basically.Leg shape housing 70 is configured to narrower than extensional shell 4, and is made up of aluminum alloy or other this type of lightweight metal materials.
Two attached projections 73 about the top that leg shape housing 70 has the flange 71 that is formed on the top, be formed on front surface, be formed on the bottom about two mounting shells 75.Figure 17 only shows an attached projections 73 and a mounting shell 75.Attached projections 73 has attachment hole.Left and right sides mounting shell 75 supports central shell through the buffer unit in the lower end of rotary shell 9.
The end face of the flange 71 of leg shape housing 70 is aimed at the bottom surface of end cover 3 and is combined.The lower surface 72 of leg shape housing 70 is aimed at the end face 5d of gear case 5 and is combined.Thus, leg shape housing 70 is integral with gear case 5 with end cover 3.
End cover 3 has the structure substantially the same with first embodiment with gear case 5.In addition, end cover 3 has and is positioned at the attachment 74 of bottom end vicinity in the lateral center on surface, back.Attachment 74 has attachment hole.
It is identical with the external structure of the extensional shell 4 (referring to Fig. 3) of first embodiment that cover 104 is designed to structure.This realizes through cover leg shape housing 70 from the left and right sides, like Figure 17 and shown in Figure 180.Two parts about this cover 104 can be divided at the lateral center place of leg shape housing 70, and constitute by left side 104L and right-hand part 104R.
Left and right sides halves 104L and 104R are half parts of bi-directional symmetrical each other, and have mating surface 128L, the 128R that faces with each other.Therefore, as mating surface 128L, when 128R is bonded together, the cover 104 that left and right sides halves 104L and 104R are integrally formed, shown in figure 19.In addition, left and right sides halves 104L and 104R are made up of very solid and firm synthetic resin.
Left side 104L is made up of the main body 104a of the left side that covers leg shape housing 70, tabular half 121L of and the support component 124 that extends back from main body 104a.Similarly, right-hand part 104L is made up of the main body 104a of the right-hand part that covers leg shape housing 70, tabular half 121R of and the support component 124 that extends back from main body 104a.
Left and right sides main body 104a, 104a approach and vertically extending roughly semicircle cartridge for long, form the general cylindrical shape shape that covers leg shape housing 70 when these main bodys fit together.Left side main body 104a has stage portion 104b, interlock 104c, last splash board 112, attachment 126L, attachment 127L and expansion cover portion 129.Similarly, right main body 104a has stage portion 104b, interlock 104c, last splash board 112, attachment 126R, attachment 127R and expansion cover portion 129.
Left and right sides stage portion 104b, 104b extend with the support shape, and around the forebody of the bottom of the outside face of main body 104a, 104a.
Left and right sides interlock 104c, 104c are the thin parts along the tip edge formation of main body 104a, 104a, and can be assemblied in the inboard, bottom of end cover 3.
Last splash board 112,112 is formed on the vertical middle part of left and right sides stage portion 104b, 104b, and these plates have replaced the last splash board 13 shown in Fig. 1 to Fig. 4.
Left and right sides attachment 126L, 126R are the convexity that is formed on the inside face of main body 104a, 104a, and are arranged in the position in the face of the attached projections 73 of leg shape housing 70.
Left and right sides attachment 127L, 127R are formed on the rear end of left and right sides interlock 104c, 104c, and are arranged in the position in the face of the attachment 74 of end cover 3.
Tabular left right- hand part 121L, 121R form device for creating lifting power 120 when being bonded together, shown in figure 19.Device for creating lifting power 120 has basically the structure identical with the device for creating lifting power of second embodiment shown in Figure 8 40.
More particularly, the forward edge of tabular left right- hand part 121L, 121R has arc-shaped concave 121r, 121r along the back surface of main body 104a, 104a, and is extremely shown in Figure 21 like Figure 17.Thus, recess 121r, 121r center on the back surface of main body 104a, 104a and are formed in this surface, back.
Tabular left right-hand part 121L, the rear end 121d of 121R, 121d are positioned at the back upper place of the rear end 11a of anti-cavitation 11, the i.e. back upper place of screw propeller 8.
Tabular left right- hand part 121L, 121R comprise: the horizontal forebody 121b, the 121b that extend back from front end 121a, 121a; The horizontal pars intermedia 121c, the 121c that further extend back from the rear end of forebody 121b, 121b; And the 121e of rear-inclined portion, 121e, this rear-inclined portion extends back downwards and arrives rear end 121d, 121d from rear end 121i, the 121i ( curve 121i, 121i) of pars intermedia 121c, 121c.
Left and right sides forebody 121b, 121b are arranged on the left and right sides of main body 104a, 104a.Specifically, forebody 121b, 121b form forked (form of bifurcation) in planar view, thereby center on the back surface of the periphery wall of main body 104a, 104a from the left and right sides.Pars intermedia 121c, 121c are arranged on main body 104a, 104a rear.Curve 121i, 121i are the border between pars intermedia 121c, 121c and the 121e of rear-inclined portion, the 121e.The 121e of rear-inclined portion, 121e have attaching parts 125L, the 125R in mating surface 128L, 128R at the rearward end place.Attaching parts 125L, 125R extend upward from the 121e of rear-inclined portion, 121e.
Tabular left right- hand part 121L, 121R have forebody 121b, 121b and pars intermedia 121c, the horizontal bottom 121g of 121c, 121g, and the 121e of rear-inclined portion, the ramped bottom surface 121h of 121e, 121h ( inclined surface 121h, 121h).
The global shape of tabular left right- hand part 121L, 121R from above can be considered to essentially rectangular when seeing.
In addition, tabular left right- hand part 121L, 121R have lateral edge portion 142L, the 142R ( intensive aspect 142L, 142R) on the outward flange of the opposite side that is integrally formed in mating surface 128L, 128R. Lateral edge portion 142L, 142R are the plate that is provided with across the rear end of the 121e of rear-inclined portion, 121e fully from front end 121a, 121a, and have the lateral edge portion 42 essentially identical structures with second embodiment shown in Figure 8.
The 121e of rear-inclined portion among tabular left right-hand part 121L, the 121R, 121e have attaching parts 125L, the 125R in mating surface 128L, 128R in the rear end.
Left side supporter 124 is connected the end face 121f of tabular half 121L of with the rear portion one of the outer peripheral face of main body 104a, and is made up of relative thicker vertical plate.The rear end 124a of this supporter 124 is wholely set on the end face 121f at the forebody 121b of tabular half 121L of.The front end 124b of support component 124 is wholely set on the top on the back surface of main body 104a.
Right supporter 124 is bi-directional symmetrical with left support component 124, is essentially identical in addition, and omits its description.
Expansion cover portion 129 covers the mounting shell 75 that is positioned at leg shape housing 70 both sides.
About partly to cover the assembling process of 104L, 104R following.
At first, partly cover 104L, 104R the left and right sides about making, and mating surface 128L, 128R are bonded together in the face of the leg shape housing 70 of boat propulsion engine 1A, shown in figure 17.Thus, left and right sides main body 104a, 104a in the face of leg shape housing 70 about the surface.
Then, under the situation that mating surface 128L, 128R are bonded together, left and right sides interlock 104c, 104c are assembled in the inboard of bottom of end cover 3.
Then, make the left and right sides attached projections 73 of left and right sides attachment 126L, 126R and leg shape housing 70 consistent and utilize bolt 130,130 to link to each other.Thus, left and right sides main body 104a, 104a link to each other with leg shape housing 70.In addition, the mounting shell 75 of leg shape housing 70 is covered by expansion cover portion 129.
Then, left and right sides attachment 127L, 127R be stacked in end cover 3 the place ahead of attachment 74 with the rear and utilize bolt 131 to link to each other.Thus, partly covering 104L, 104R about links to each other with end cover 3.
At last, with tabular left right-hand part 121L, the attaching parts 125L of 121R, 125R is bonded together and utilize bolt 132 to link to each other, thus complete operation.
Assembling parts by this way partly covers 104L, 104R forms and is attached to the cover 104 on the leg shape housing 70 about the result, like Figure 19 to shown in Figure 21.Cover 104 covers leg shape housing 70, and formation and Fig. 1 are to extensional shell 4 similar external structures shown in Figure 4 thus.
In addition, tabular left right- hand part 121L, 121R form device for creating lifting power 120 when fitting together.Identical in the state of device for creating lifting power 120 and first embodiment shown in Fig. 1 to Fig. 4.Left and right sides support component 124,124 is arranged on the device for creating lifting power 120 to specify Spacing to the left and right, and accommodating plate-shaped left right- hand part 121L, 121R.
The boat propulsion engine 1A of above-mentioned the 5th embodiment summarizes as follows.
Leg shape housing 70 forms the part of the main body of boat propulsion engine 1A.This leg shape housing 70 (main body 70) extends with respect to hull Si perpendicular.Cover 104 is the parts of opening in 70 minutes with leg shape housing, and forms the periphery wall that covers leg shape housing 70.Device for creating lifting power 120 has from covering 104 extensions to the left and right and being positioned at surperficial 121g, the 121h that covers 104 (periphery wall 104) rear at least.
Cover 104 is not limited to be divided into the two-part structure in the left and right sides, and other are possible partly covers 104L about being configured to, 104R is integrally formed, and only the part of main body 104a, 104a is opened to the left and right.For example, cover 104 can be constructed such that and comprise the latter half of integrally formed of device for creating lifting power 120, and forebody is configured to and can opens and closes to the left and right.In this case, after forebody is opened and is installed on the leg shape housing 70, utilize bolted connection to open part.
Then, will the modification according to the support component 124 (referring to Figure 18) of the 5th embodiment be described with reference to Figure 22.
The cover 104 of this modification is characterised in that the support component 124 of the 5th embodiment becomes support component 154, and is shown in figure 22.In addition, structure is identical with the structure of the 5th embodiment shown in Figure 17 to Figure 21, and also the descriptions thereof are omitted therefore to use identical Reference numeral.
Support component 154 (supporter 154) is characterised in that rearmost end 154c extends near the 121d of rear end, but in addition the 5th embodiment shown in structure and Figure 17 to Figure 21 is basic identical.
More particularly, the rear end 154a of support component 154 end face of end face 121f and the 121e of rear-inclined portion on the two that is set to pars intermedia 121c integratedly.Particularly, rear end 154a extends near the 121d of rear end.The front end 154b of support component 154 is arranged on the top on the back surface of main body 104a integratedly.Thus, support component 154 is connected the 121e of rear-inclined portion of pars intermedia 121c with the back surperficial one of main body 104a.
According to this modification; The rigidity of plate-like body 121 increases; This is because rear-inclined portion 121e and the pars intermedia 121c of support component 154 support and connection on it, and opposing is especially resisted the propulsive force by the 121e of rear-inclined portion generation by the propulsive force that device for creating lifting power 120 produces.
According to the cover 104 of the 5th embodiment and modification thereof not needs be divided into two, but can have continuous left side (104L is partly covered on a left side) and right-hand part (104R is partly covered on the right side).For example, cover 104 can be constructed to make the latter half of integrally formed of the housing 104 comprise device for creating lifting power 120, and the front portion can be opened to the left and right.Then, open the front portion and be installed in around the leg shape housing 70, and be positioned at the anterior part that is separated and opens through connections such as bolts.
Then, will the boat propulsion engine 1B according to the 6th embodiment be described with reference to Figure 23 to Figure 25.
The boat propulsion engine 1B of the 6th embodiment is characterised in that last splash board 13 becomes the structure of the forebody that only is set to extensional shell 4, and the device for creating lifting power 200 that is provided with shown in figure 24.In addition, the boat propulsion engine 1 of the structure of boat propulsion engine 1B and first embodiment is basic identical.In addition, all the other structures also structure with first embodiment shown in Fig. 1 to Fig. 4 are identical, and also the descriptions thereof are omitted therefore to use identical Reference numeral.
Device for creating lifting power 200 is arranged on the tight rear of splash board 13, is located substantially on the height identical with last splash board 13.
Particularly, device for creating lifting power 200 is made up of single plate-like body 201.Plate-like body 201 is arranged to extend back from the lower part of the back surperficial 4a of extensional shell 4, and is extremely shown in Figure 25 like Figure 23.
From above when seeing, the front edge 201a of plate-like body 201 is hollowed out roughly U-shaped at the middle part.Therefore, the front edge 201a of plate-like body 201 forms around the surperficial 4a in back and to the left and right sides of extensional shell 4 and extends, thereby left and right sides front end 201b is in the face of the rear end 13a of splash board 13.In other words, plate-like body 201 extends back from the both sides of the longitudinal middle part of extensional shell 4 and forms, thus around the back periphery.In addition, the front edge 201a of plate-like body 201 is formed on the surperficial 4a in back.The rear end 201c of plate-like body 201 is arranged on the back upper place of the rear end 11a of anti-cavitation 11.
The height of front end 201b is concordant basically with the height of last splash board 13.The height setting of rear end 201c is concordant basically or more lower slightly than the height of front end 201b with the height of front end 201b, and low degree does not hinder water flows.
Whole plate-like body 201 is essentially wing.Particularly, plate-like body 201 forms bowed shape, and when it is seen in like Figure 24 from the side and extensional shell 4 overlapping part places have summit 201d and have curved surface at the top.The gradient of the part at the 201d on the summit (curve 201d) rear is less than the gradient of the part in 201d the place ahead on the summit.The thickness of plate-like body 201 is 201d place maximum on the summit, and all reduces towards front end 201b and rear end 201c.
The end face 201e and the bottom surface 201f of plate-like body 201 form the bowed shape that has curved surface at the top.In addition, because 201d recedes downwards from the summit, bottom surface 201f has along the recess angle of the direction of propulsion of boat propulsion engine 1B.
Shown in figure 25, identical in the relation of the width W 1 of plate-like body 201 (being the width W 1 of device for creating lifting power 200) and boat propulsion engine 1B and first embodiment shown in Fig. 4.Particularly, the width W 1 of plate-like body 201 is preferably set to the maximum width W2 (W1 ≈ W2) that is substantially equal to boat propulsion engine 1B, perhaps is slightly less than maximum width W2 (W1＜W2).The width W 1 of plate-like body 201 is preferably set to abundant external diameter greater than screw propeller 8.
Plate-like body 201 is supported by a plurality of support components 202, and support component 202 extends up to the back surperficial 4a of extensional shell 4 forward from end face 201e.Support component 202 is made up of three relative thicker vertical plate.Support component 202 all is arranged parallel to each other, and separates to the left and right with the state of vertical stand-up.
The 201c vicinity is set to end face 201e to the bottom 202a of support component 202 integratedly in the rear end.The front end 202b of support component 202 is arranged on the top of the back surperficial 4a of extensional shell 4 integratedly.Therefore, support component 202 is connected plate-like body 201 with extensional shell 4 one.
Then, will the boat propulsion engine 1C according to the 7th embodiment be described with reference to Figure 26 to Figure 33.
The boat propulsion engine 1C of the 7th embodiment is characterised in that device for creating lifting power 220 forms to construct with extensional shell 4 spaced manner with a plurality of support components 224, and is shown in figure 33.In addition, structure is identical with the structure of second embodiment shown in Fig. 8 to Figure 10, and also the descriptions thereof are omitted therefore to use identical Reference numeral.
The extensional shell 4 of boat propulsion engine 1C be included in that about two of the top of the surperficial 4a in back go up attachment 4c and in the back about two of the bottom of surperficial 4a attachment 4d down, shown in figure 33.Last attachment 4c is the elongated raised with attachment hole.Following attachment 4d is the patelliform convexity with attachment hole.
Device for creating lifting power 220 is by the component set-up of opening in 4 minutes with extensional shell and have and according to the substantially the same structure of device for creating lifting power 40 (referring to Fig. 8) of second embodiment.Device for creating lifting power 220 is made up of plate body 21 and lateral edge portion 42,42 on the left and right edges that is integrally formed in plate body 21.Substantially the same in the structure of plate body 21 and lateral edge portion 42,42 and second embodiment, also the descriptions thereof are omitted therefore to use identical Reference numeral.
The front edge of plate body 21 has along the arc-shaped concave 21r of the back surperficial 4a of extensional shell 4.Thus, recess 21r centers on the surperficial 4a in back.The forebody 21b of plate body 21 has at two attached projections 21s with respect to the lateral position of recess 21r.Attached projections 21s forms from the end face of forebody 21b and projects upwards.Attached projections 21s contacts and is attached to down on the attachment 4d through bolt 225 with following attachment 4d.
Plate body 21 is supported by a plurality of support components 224, and support component 224 extends up to the back surperficial 4a of extensional shell 4 forward from the end face 21f of plate body 21.More particularly, support component 224 is made up of two relative thicker vertical plate.Support component 224 all is arranged to parallel, and separates to the left and right with the vertical stand-up state.The boundary vicinity of the bottom 224a of support component 224 between pars intermedia 21c and the 21e of rear-inclined portion is arranged on end face 21f place integratedly.
Support component 224 has the attachment 224b that is positioned at front end.Attachment 224b contacts with last attachment 4c and is attached on the attachment 4c through bolt 226.Therefore, support component 224 is connected the end face 21f of plate body 21 with the back surperficial 4a of extensional shell 4 integratedly.
When in like Figure 29, seeing boat propulsion engine 1C from the rear, the distance between the outside face of left and right sides support component 224,224 (distance that comprises thickness) is set in the scope of width W 3 of extensional shell 4.More preferably, left and right sides support component 224,224 is arranged to not stretch out the profile above extensional shell 4 to the side.Therefore, when hull Si travels forward, can reduce to form resistance, when motion of ship, can reduce to splash, and can realize that pulsation-free promotes action from the wave of left and right sides support component 224,224.
Identical in the relation of plate body 21 and screw propeller 8 and plate 11,12,13 and the size of plate body 21 and first embodiment.
The process that device for creating lifting power 220 and support component 224 are assembled on the boat propulsion engine 1C is following.
At first, the recess 21r of plate body 21 is assemblied on the back surperficial 4a of extensional shell 4, shown in figure 33.
Then, make left and right sides attachment 224b with about go up attachment 4c and aim at, and make left and right sides attached projections 21s with about time attachment 4d aim at.
At last, go up attachment 4c about utilizing bolt 226 that left and right sides attachment 224b is attached to, and attachment 4d down about utilizing bolt 225 that left and right sides attached projections 21s is attached to, thereby complete operation.Thus, device for creating lifting power 220 and support component 224 are assembled on the boat propulsion engine 1C.
Then, will first modification according to the device for creating lifting power 220 (referring to Figure 28) of the 7th embodiment be described with reference to Figure 34.
The device for creating lifting power 220A of first modification is characterised in that the left and right sides edge part 42,42 (referring to Figure 28) of the 7th embodiment becomes left and right sides edge part 42A, 42A, and is shown in figure 34.In addition, structure is identical to the structure of the 7th embodiment shown in Figure 33 with Figure 26, and also the descriptions thereof are omitted therefore to use identical Reference numeral.
Left and right sides edge part 42A, 42A are tabular intensive aspect, and it forms from left and right sides edge 21j, the 21j of plate body 21 and extends upward.Left and right sides edge part 42A, 42A are formed on the pars intermedia 21c and the 21e of rear-inclined portion of plate body 21 continuously.Because from the upwardly extending lateral edge portion 42A of the left and right edges of plate body 21,42A, device for creating lifting power 220A has the rigidity of increase.
Then, will second modification according to the device for creating lifting power 220 (referring to Figure 28) of the 7th embodiment be described with reference to Figure 35.
The device for creating lifting power 220B of second modification is characterised in that, on plate body 21, does not form left and right sides edge part 42,42 (referring to Figure 28).In addition, structure is identical with the structure of the 7th embodiment shown in Figure 26 to Figure 33, and also the descriptions thereof are omitted therefore to use identical Reference numeral.
Then, will the boat propulsion engine 300 according to the 8th embodiment be described with reference to Figure 36.
The boat propulsion engine 300 of the 8th embodiment is characterised in that engine section 6A is the inboard engine outboard-drive unit that is contained among the hull Si, and is shown in figure 36.Represent by identical Reference numeral with the similar parts of first embodiment, and omit its detailed description.
More particularly, boat propulsion engine 300 is attached to stern St.Engine section 6A is the drive source that is contained among the hull Si.First axle drive shaft, 301 horizontal-extendings from engine section 6A are outside so that extend outward to the back from stern St.First axle drive shaft 301 is connected to second axle drive shaft 303 through gear mechanism 302.Second axle drive shaft 303 passes extensional shell 4 and gear case 5.Screw propeller 8 rotates under the effect of second axle drive shaft 303.
Engine section 6A is the multi-cylinder engine with a plurality of cylinders, and the structure of the engine section 6 of its keystone configuration and first embodiment is basic identical.This engine section 6A is so-called horizontal engine, and wherein bent axle and camshaft are arranged with horizontal alignment.Cylinder is arranged with horizontal orientation, and its axis longitudinally is orientated.
Extensional shell 4 (main body 4) is configured to hold second axle drive shaft 303, and most of vertical extent of this second axle drive shaft is delivered to screw propeller 8 with the propulsive effort with engine section 6A.In addition, extensional shell 4 comprises device for creating lifting power 20 and a plurality of support component 24A.Device for creating lifting power 20 has the structure identical with first embodiment.Support component 24A has the keystone configuration substantially the same with the support component of first embodiment 24.
Then, will the modification according to the boat propulsion engine 300 of the 8th embodiment be described with reference to Figure 37.
Boat propulsion engine 300 is characterised in that buoyancy main body 350 is attached to the rear portion of extensional shell 4, and is shown in figure 37.In addition, structure is identical with the structure of the 8th embodiment shown in Figure 36, therefore uses identical Reference numeral and the descriptions thereof are omitted.
Particularly, buoyancy main body 350 is configured to be stacked on the plate body 21 of device for creating lifting power 20.Buoyancy main body 350 is made up of with downward sweptback latter half of 352 the forebody that forms approximate horizontal 351.In other words, the bottom surface of buoyancy main body 350 is crooked with broken line shape.When hull Si from static when beginning to quicken, except the buoyancy of buoyancy main body 350 self, lift works so that stern St rises.This lift is because the existence of the inclined surface 21h in latter half of 352.Therefore, when boats and ships quickened, stern St rose fast, thereby made hull Si become horizontal alignment reposefully.
Therefore, boat propulsion engine 1,1A to 1C and 300 can be applied to inboard/outboard driving engine and outboard engine.
Industrial applicibility
The present invention was preferred for through the boat propulsion engine 1 on the stern St that is attached to hull Si, 1A to 1C or 300 boats and ships being reached at a high speed fast and reposefully in the initial propulsion stage.

Claims (9)

1. boat propulsion engine, this boat propulsion engine comprises:
Main body;
Anti-cavitation, this anti-cavitation is set on the said main body, is positioned at the screw propeller top; And
Device for creating lifting power, this device for creating lifting power are set on the said main body, are positioned at said anti-cavitation top at a certain distance, when the hull setting in motion, comprise that the lower part of the said boat propulsion engine of said device for creating lifting power is submerged; Wherein
Said device for creating lifting power is configured to extend back fartherly from said main body than the rear end of said anti-cavitation, and has the bottom surface that extends back downwards.
2. boat propulsion engine according to claim 1, wherein, said device for creating lifting power is made up of plate-shaped member.
3. boat propulsion engine according to claim 1, wherein, when seeing this boat propulsion engine from the rear, the width of said device for creating lifting power is no more than the width of this boat propulsion engine.
4. boat propulsion engine, this boat propulsion engine comprises:
Main body;
Anti-cavitation, this anti-cavitation is set on the said main body, is positioned at the screw propeller top; And
Device for creating lifting power, this device for creating lifting power are set on the said main body, are positioned at said anti-cavitation top at a certain distance, when the hull setting in motion, comprise that the lower part of the said boat propulsion engine of said device for creating lifting power is submerged; Wherein
Said device for creating lifting power has the bottom surface in the face of said anti-cavitation; And
Said bottom surface recedes downwards in the position at the rear, rear end of said anti-cavitation.
5. boat propulsion engine according to claim 4, wherein, said device for creating lifting power is made up of plate-shaped member.
6. boat propulsion engine according to claim 4, wherein, when seeing this boat propulsion engine from the rear, the width of said device for creating lifting power is no more than the width of this boat propulsion engine.
7. boat propulsion engine, this boat propulsion engine comprises:
Main body;
Anti-cavitation, this anti-cavitation is set on the said main body, is positioned at the screw propeller top; And
Device for creating lifting power, this device for creating lifting power are set on the said main body, are positioned at said anti-cavitation top at a certain distance, when the hull setting in motion, comprise that the lower part of the said boat propulsion engine of said device for creating lifting power is submerged; Wherein
Said device for creating lifting power have from said main body extend back latter half of, and this latter half ofly is positioned at the rear, rear end of said anti-cavitation and is positioned at said rear propeller.
8. boat propulsion engine according to claim 7, wherein, said device for creating lifting power is made up of alae, and when seeing this boat propulsion engine from the side, this alae has roughly wing cross section.
9. boat propulsion engine according to claim 7, wherein, when seeing this boat propulsion engine from the rear, the width of said device for creating lifting power is no more than the width of this boat propulsion engine.
CN2006800304566A 2005-08-22 2006-08-18 Boat propulsion engine Expired - Fee Related CN101626951B (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
JP240120/2005 2005-08-22
JP2005239995A JP4620549B2 (en) 2005-08-22 2005-08-22 Ship propulsion machine
JP2005239970A JP2007055302A (en) 2005-08-22 2005-08-22 Vessel propulsion machine
JP239995/2005 2005-08-22
JP2005240120A JP4758710B2 (en) 2005-08-22 2005-08-22 Ship propulsion machine
JP239970/2005 2005-08-22
PCT/JP2006/316666 WO2007023928A2 (en) 2005-08-22 2006-08-18 Boat propulsion engine

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