CN1796228A - Water spraying propelling outboard motor - Google Patents
Water spraying propelling outboard motor Download PDFInfo
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- CN1796228A CN1796228A CN 200410104200 CN200410104200A CN1796228A CN 1796228 A CN1796228 A CN 1796228A CN 200410104200 CN200410104200 CN 200410104200 CN 200410104200 A CN200410104200 A CN 200410104200A CN 1796228 A CN1796228 A CN 1796228A
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- outboard motor
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 147
- 238000005507 spraying Methods 0.000 title claims description 30
- 239000000498 cooling water Substances 0.000 claims description 28
- 230000000717 retained effect Effects 0.000 claims description 19
- 239000002912 waste gas Substances 0.000 claims description 7
- 239000007789 gas Substances 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 3
- 230000002153 concerted effect Effects 0.000 claims description 3
- 239000008399 tap water Substances 0.000 claims description 3
- 235000020679 tap water Nutrition 0.000 claims description 3
- 230000002745 absorbent Effects 0.000 claims description 2
- 239000002250 absorbent Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 239000004576 sand Substances 0.000 description 8
- 238000007599 discharging Methods 0.000 description 6
- 239000002351 wastewater Substances 0.000 description 6
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 230000002829 reductive effect Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000036961 partial effect Effects 0.000 description 3
- 230000001141 propulsive effect Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 241000510097 Megalonaias nervosa Species 0.000 description 1
- 230000003042 antagnostic effect Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The present invention relates to an outboard engine of boat and ship, in particular, it relates to a water jet propulsion type outboard engine. It includes the following several portions: external shell component with suction external shell and discharge external shell; machine shell; engine mounted on the machine shell; gear box placed in the front of the above-mentioned external shell component and over the suction inlet; driving longitudinal shaft connect with the engine; driven transverse shaft connected with the driving longitudinal shaft; blade wheel; and guide blade. Said invention also provides the concrete structure of the above-mentioned every portion and connection mode of all the above-mentioned portions.
Description
Technical field
The present invention relates to the outboard engine of ships and light boats, particularly water spraying propelling outboard motor.
Background technology
On the spy opens flat 9-309492 number bulletin, narrated the water spraying propelling outboard motor of in pipeline, having taken in turbine with sucking hole and injection orifice, it will pressurize with turbine from the water of sucking hole inspiration, and from injection orifice ejection to advance the outboard engine of ships and light boats.But this outboard engine is because it uses the pressure (hydraulic) water of the pipeline cooling water expansion tank as driving engine, so the sand grains that flows into from sucking hole has been sneaked into the engine cooling water.
On the spy opens flat 11-286297 number bulletin, narrated by the board and be provided with flat washboard between the machine and ships and light boats, the increase that produces resistance of taxing to suppress water to contact, and the outboard engine division box that in ship, splashes of anti-sealing with outboard engine.But, this division box, it can not prevent from from water and outboard engine side that stern is upspring to collide when rotating outboard engine for the line of travel that changes ships and light boats, therefore can not suppress the increase of resistance.
On the spy opens flat 9-39892 number bulletin, narrated and to be transplanted on propeller cap by the pressurization rotary water current that turbine has pressurizeed, and sprayed and advance the water spraying propelling outboard motor of ships and light boats from injection orifice.But owing to vertically picked up from the water of sucking hole, the suction side is in the possibility that negative pressure has the cavitation erosion of producing when sliding.In addition, this outboard engine, it imports exhaust chamber in the water with exhaust of driving engine, utilizes the energy that absorbs exhaust in water and noise reduction, but since perforate on the propeller cap and in water exhaust chamber supply with high pressure water, so produced degradation of energy.
The spy open flat 8-253196 number the bulletin on, narrated and on the sucking hole of suction casing, fixed the protection net that dedusting is used, with the device that prevents to float in the water or the rubbish of the water surface is inhaled into.But, because this protection net is fixed guard,, must pull down the bolt or the screw of fixed protection guard so hang over the plastic sheeting of impeller eye portion or the rubbish of rope class in order to remove by protection net, be difficult to remove rubbish on the water.
Summary of the invention
The present invention proposes in view of each problem of aforesaid conventional art, and its purpose is to provide a kind of small-sized light weight, and the propulsion coefficient height, safety water spraying propelling outboard motor.
Other purpose is to provide: prevent sand grains etc. sneak into the water fetching device of engine cooling water, prevent because of the water of upspringing and outboard engine side from stern collide cause resistance of taxing increase and the front casing that prevents to splash in this impacts current direction ship, reduce exhaust sound and make its bassization exhaust system, simplify the movable protection net of removing such as rubbish.
The water spraying propelling outboard motor of one embodiment of the invention, be to possess: have the case member that sucks shell and ejection shell, wherein, suck shell and form the curved tube shape stream that extends to oblique back upper place from the sucking hole of front end, the ejection shell forms from the rear end that sucks shell to ejiction opening slightly to the horizontal-extending flow channel; Extend the casing of setting upward from case member; Be installed in the driving engine on the casing; Be configured in the gear case of case member the place ahead and sucking hole top; Drive the longitudinal axis with the driving engine bonded assembly; Approximate horizontal be arranged at suck in the shell and in gear case with drive the driven transverse axis of longitudinal axis bonded assembly; Be fixed on the driven transverse axis and be used for exterior water being sucked pressurization and from the impeller of ejiction opening ejection, it has near outer circumferential edges portion of the inner peripheral surface that sucks shell and forwards extends the spiral fashion fin (20) of the front edge outer circumference portion that is provided with from sucking hole; Be arranged near the pilot blade of ejiction opening of discharging shell.
Description of drawings
Fig. 1 is the water spraying propelling outboard motor lateral plan of the present invention the 1st embodiment.
Fig. 2 is the longitudinal section of Fig. 1 outboard engine propelling unit.
Fig. 3 is the lateral plan of Fig. 1 outboard engine impeller and guide vane wheel.
Fig. 4 is the outboard engine partial, longitudinal cross-sectional of presentation graphs 1 outboard engine exhaust system.
Fig. 5 is the block diagram of Fig. 1 outboard engine propelling unit.
Fig. 6 is provided in a side of the expansion chamber sectional elevation on the erecting bed of the water spraying propelling outboard motor exhaust system part that constitutes the present invention the 2nd embodiment.
Fig. 7 is the propelling unit partial, longitudinal cross-sectional from the being seen expression expansion chamber in VII-VII cross section of Fig. 6.
Fig. 8 is provided in a side of the retained chamber's sectional elevation on the erecting bed of the water spraying propelling outboard motor draining system that constitutes the present invention the 3rd embodiment and exhaust system part.
Fig. 9 is the being seen partial, longitudinal cross-sectional of representing the propelling unit of retained chamber from the IX-IX cross section of Fig. 8.
Figure 10 is the enlarged drawing of the propelling unit front portion of Fig. 1 outboard engine.
Figure 11 is the propelling unit birds-eye view of Fig. 1 outboard engine.
Figure 12 is the propelling unit lateral plan that expression is located at the protection net on the sucking hole of Fig. 1 outboard engine.
Figure 13 is the upward view of suction shell of the propelling unit of Fig. 1 outboard engine.
Figure 14 is the rotary state figure of Fig. 1 outboard engine when representing the ships and light boats steering.
Figure 15 is the outboard engine enlarged drawing of Figure 14.
The specific embodiment
Below, embodiments of the present invention will be described in detail with reference to the accompanying drawings.In addition, in the following description, the place ahead is meant the place ahead of ships and light boats navigation direction, and the rear is meant the rear of ships and light boats navigation direction.
First embodiment
As Fig. 1 and shown in Figure 14, the water spraying propelling outboard motor 1 of first embodiment, being situated between is installed on the tailgate 7a of ships and light boats 7 freely by support 6 dismounting, by the driving engine 2 as propulsion source; This driving engine 2 is installed on the casing 3 of upper end; The propelling unit 5 that is fixed on these casing 3 lower ends by installing component 4a constitutes.
The casing 3 of outboard engine 1, it is installed on the support 6 by to omiting the bracket pins 6a that vertical direction extends.The part of this casing 3 is connected with the device 6b that operates the rudder that is moved by operator's operation of ships and light boats 7.Outboard engine 1, it utilizes operator's operation of turning right, and rotates to overlooking anticlockwise direction (the 1a side among Figure 14) around bracket pins 6a.In addition, outboard engine 1, it utilizes operator's operation of turning left, and rotates to overlooking clockwise direction (the 1b side among Figure 14) around bracket pins 6a.Like this, because outboard engine 1 integral body is rotated to general horizontal direction with respect to ships and light boats 7, so change the direction that gives ships and light boats 7 propulsive forces, ships and light boats 7 just are operated.
Between casing 3 and propelling unit 5, being provided with can the tabular installing component 4a of attaching/detaching on propelling unit 5 case members 10 described later and casing 3 both sides.This installing component 4a utilizes bolt 3b, is fixed on the flange 3a that is formed at casing 3 lower ends, and utilizes bolt 3c, is fixed on the mounting flange 4b of erecting bed 4 upper ends of being located at propelling unit 5 case members 10 tops.
As shown in Figure 2, after propelling unit 5 is accepted the power of driving engine 2 and utilized impeller 14 to suck the water by ships and light boats 7 hull bottom 7b downsides and pressurizeed, to the ejection of ships and light boats 7 rears, obtain the device of the propulsive force of ships and light boats 7 with its antagonistic force as jet water course.
The case member 10 of propelling unit 5, it has: have near undersurface hull bottom 7b the sucking hole 9a under shed forwardly, and formed the suction shell 9 to the suction current circulation passage 9b of the curved tube shape that slightly is horizontal curvature after has extended oblique back upper place from this sucking hole 9a; Be connected with suction shell 9, and form the circulation passage that extends from this approximate horizontal, have the discharge shell 11 of backward opening ejiction opening 11a in the rear end.On the sucking hole 9a that sucks shell 9, laid dedusting protection net 44.
Discharge on the shell 11 at the rear of impeller 14, be provided with and discharge a plurality of stationary guide blades 22 that shell 11 anterior reducing diameter part 11b form one, link these pilot blades 22, and be situated between and support the blade wheel hub 21 of driven transverse axis 13 rear ends by bearing 12a.Pilot blade 22 is with blade wheel hub 21 and discharge shell 11 anterior reducing diameter part 11b concerted actions, and formation will be a plurality of flow channels of straight-though with the rotary water current rectification of impeller 14 pressurization speedups.The peripheral portion 22a of the back edge of pilot blade 22 extends near the ejiction opening 11a.
The front portion of driven transverse axis 13, its utilization are located at that the bearing 12 that sucks on shell 9 the place ahead upper walls supports and by water seal, the anterior 13b that forwards protrudes thus, and it is extended and is arranged in the gear case 15 that is configured in the horizontal the place ahead that sucks shell 9 and sucking hole 9a top.Driven transverse axis 13, it is in gear case 15, and the drive side bevel gear 17 that the slave end bevel gear 18 by being embedded in driven transverse axis 13 front ends and Qi Nogami of Yu close links with the driving longitudinal axis 16 that is linked to driving engine 2 output shafts.Be delivered to driven transverse axis 13 with this propulsive effort from driving the longitudinal axis 16, and make impeller 14 rotations driving engine 2.
Retreat the commutation bucket 23 of usefulness, it is can be arranged on the pin 23a that discharges shell about 11 by protrusion rotationally up and down to support.Commutation bucket 23, it will shunt and make its counter-rotating to the left and right from the current that retreat of ejiction opening 11a injection, and ejiction opening 23b sprays to oblique the place ahead from the left and right sides, promptly so-called bypass type bucket.On commutation bucket 23, connecting control stalk 24, its bucket turned position up and down of 23 that will commutate switches on the ships and light boats that open wide ejiction opening 11a and advances with upper side position, retreats between the usefulness lower position (position shown in Fig. 1,2,4,11 and 12) with the ships and light boats of covering ejiction opening 11a.
Below, the cooling water system that the driving engine 2 of outboard engine 1 is cooled off with reference to Fig. 2 and Figure 10 explanation.
To the cooling water system that the driving engine 2 of outboard engine 1 cools off, it has: from the cooling water pump 28 of the outer absorbent member of outboard engine 1; The 1 and the 3rd water circuit system from the exterior guiding cooling water expansion tank of outboard engine 1; Pass through driving engines 2 the 2nd water circuit system of machine 1 exterior guiding water outboard from cooling water pump 28.
The 1st water circuit system, it possesses: as the front casing 25 of the water intaking portion that fetches water from the outside of outboard engine 1; As the water channel 50 that water is directed to cooling water pump 28 the 1st water route from front casing 25.
The branch water plate 25b of blade of a sword shape, as shown in Figure 5, it is formed on front casing 25 tops, and stretches out to foreign side from the front of its circle wall 25a.Divide water plate 25b, portion in its back-end, the flange 4c that is arranged on erecting bed 4 sides of propelling unit 5 with protrusion is connected.Divide water plate 25b and flange 4c its be positioned at more lean on than the axle center of driven transverse axis 13 above and more lean on than the upper end that sucks shell 9 below the position approximate horizontal extend, and can when ships and light boats advance, be positioned at than water surface WL more by the position of upside.
In addition, from the circle wall 25a of front casing 25 to the outer circumference surface 9e that sucks shell 9 and discharge the outer circumference surface 11c of shell 11, be formed slick and sly swept-out curved surface.Therefore, because the current that conflict previously with the case member 10 of propelling unit 5 in ships and light boats 7 navigation, shown in the streamline that Figure 11 arrow is represented, it passes through the side of case member 10 sleekly, and mobile by pushing rearward, so can reduce the running resistance of ships and light boats 7.
Intake 25c, as Fig. 2 and shown in Figure 5, it is positioned at the sucking hole 9a the place ahead that sucks shell 9, and the bottom of front casing 25 towards below opening.In addition, on intake 25c, laid dedusting filter screen 26.
Cooling water pipe 27, it is connected with the cooling water pump 28 of driving engine 2, and its front end is sagging from upper wall side in front casing 25 of front casing 25.
The 2nd water circuit system, it possesses: as from cooling water pump 28 through driving engines 2 and with the water water route 49 in the 2nd water route of machine 1 exterior guiding outboard.
The 3rd water circuit system, between impeller 14 and ejiction opening 11a, in more detail, it possesses: be opened on the intake 47a near discharge shell 11 internal faces of pilot blade 22 inlets; One end has this intake 47a, and connects the straight tube 47b that discharges shell 11 tube walls; From this straight tube 47b branch and water is imported the cooling water pipe 48 as the 3rd water route of cooling water pump 28; Be located at the filter screen 47 in the straight tube 47b.
In addition, on case member 10 sides of propelling unit 5, as shown in Figures 1 and 2, be provided with the admission port 51 that is communicated with the 1st and the 3rd water route.
Below, with reference to Fig. 4 and Fig. 5, the exhaust system that driving engine 2 exhausts of outboard engine 1 are discharged to the outside is described.
The exhaust system of outboard engine 1, as Fig. 4 and shown in Figure 5, it has: the space that is surrounded by the next door 29a that extends setting up and down in casing 3 inside, and the aiutage 30 of driving engine 2 hangs down into the exhaust chamber 29 of its in-to-in as the 1st exhaust system; Be communicated with this exhaust chamber 29 and exhaust is directed to exterior exhaust passage 31 as the 2nd exhaust system; Exhaust passage 32; Jet pipe 33 and exhausr port 33a.
On exhaust passage 32 rear end that suction shell 9 downsides converge, connecting jet pipe 33.Jet pipe 33, it is direction extension forwards, backwards along the bottom of discharging shell 11, and in addition, it protrudes downwards unlike the sucking hole 9a that sucks shell 9.At jet pipe 33 back square ends, near the ejiction opening 11a downside of discharging shell 11, be provided with the exhausr port 33a of opening rearward.
According to above-mentioned the 1st embodiment, since the sucking hole 9a that sucks shell 9 with the roughly the same level of hull bottom 7b towards the below opening, so propelling unit 5 is protruded downwards unlike hull bottom 7b, and, because impeller 14 is pushed into the case member 10 of device 5 and surrounds, so impeller 14 does not contact with obstacles such as sand waste or rocks.Therefore, propelling unit 5 and impeller 14 are difficult to damage, and can be provided near the seashore or the safe navigation in shoal such as river.
In addition, be formed the short suction current circulation passage 9b of curved tube shape owing to suck shell 9, thus propelling unit 5 can be shortened, and alleviate the weight of outboard engine 1.In addition because propelling unit 5 is short, and does not protrude from the rear of ships and light boats 7, so reduced ribbon to the winding of propelling unit 5 or with the contacting of floodwood etc., improved the work efficiency of outboard engine 1.
In addition, owing to forwards extend the front edge outer circumference portion 20c that is provided with spiral fashion fin 20, enlarge the inlet area or the circulation passage that have formed impeller 14, so improved intake performance, even and floating debris flows into and also to be difficult to be blocked in the suction portion of spiral fashion fin 20, and reduced the fault that produces because of rubbish.
In addition, because between casing 3 and propelling unit 5, be provided with the energy attaching/detaching in the case member 10 of propelling unit 5 and the installing component 4a on casing 3 both sides, so when when the propelling unit 5 with present embodiment is used for existing outboard engine, on the outboard engine 1 of present embodiment, using the different propelling unit of propelling unit 5 with present embodiment, perhaps, when the interval of propelling unit 5 that changes present embodiment and casing 3, as long as replace installing component 4a, can the most apparatus parts of general outboard engine.
The cooling system of driving engine 2 of cooling outboard engine 1 possesses to cooling water pump 28 and imports the water circuit system of cooling water expansion tanks, i.e. the 1st and the 3rd water circuit system.The 3rd water circuit system, it is from the intake 47a water intaking of the 11 internal face upper sheds of the discharge shell between impeller 14 and ejiction opening 11a; The 1st water circuit system, it is from being set up in parallel and being fixed in front casing 25 water intakings in the sucking hole 9a the place ahead that sucks shell 9.From the intake 47a of the 3rd water circuit system, obtain the high pressure water of the pilot blade 22 inlet peripheries that utilize impeller 14 rotations and obtain.When ships and light boats 7 navigate by water in the shoal, sand grains etc. are inhaled into and suck in the shell 9, and when stopping up the filter screen that is located at from the straight tube pipeline 47b that intake 47a extends, be difficult to intake 47a water intaking from the 3rd water circuit system, even but in this case, owing to can so can continue to supply with cooling water expansion tank, burn cylinder from front casing 25 water intakings of the 1st water circuit system to prevent driving engine 2.
Because filter screen 47 is arranged on the straight tube pipeline 47b that connects discharge shell 11 tube walls, so can be from discharging the outside loading and unloading filter screen 47 of shell 11.
Because front casing 25, be set up in parallel and be fixed in the sucking hole 9a the place ahead that sucks shell 9, so when ships and light boats 7 navigation, it is not inhaled into by sand grains etc. to suck the interior influence of shell 9.In addition because the intake 25c of front casing 25, its front casing 25 bottoms towards below opening, so rubbish is difficult to inflow when ships and light boats 7 navigation.
Owing on intake 25c, laid filter screen 26, can from the water that flows into front casing 25, remove rubbish etc.And, owing to utilize the circle wall 25a of front casing 25, formed the flow path cross sectional area expansion water route 50a bigger than water route 50, so flow into the current in the front casing 25, circulation is trapped in and enlarges 50a inside, water route before being inhaled into water route 50.At this moment, sneak into the sand grains that flows in the water etc., in enlarging water route 50a, precipitate, and with moisture from.If will hang down into the front end of in-to-in cooling water pump 27 from front casing 25 upper walls, be configured in the stagnant flow zone that enlarges in the 50a of water route, then can obtain the water that does not contain sand grains effectively.
In addition, owing to be communicated with the admission port 51 of the 1st and the 3rd water circuit system, be set on case member 10 sides of propelling unit 5, even so clean when turning round on land, as long as running water pipe is connected with admission port 51, just can easily supply with tap water, carry out the cleaning (removing salinity, mud, sand etc.) of the driving engine 2 of cooling water system and the cooling of impeller 14 bearing 12a to cooling water system.
The circle wall 25a of front casing 25, it utilizes the front side outer circumference surface to form the case member 10 semicircle tubular front end faces of propelling unit 5.Therefore, when ships and light boats 7 navigation, splash and impact the current of propelling unit 5, can be pushed and flow to rear (arrow of Figure 11 is represented current) sleekly from hull bottom 7b.From the circle wall 25a of front casing 25 towards the outer circumference surface that sucks shell 9, form towards the place ahead continuously and the branch water plate 25b that stretches out the side and the flange 4c of erecting bed 4, it is positioned near the position of the water surface because when ships and light boats 7 navigation, so can when ships and light boats 7 navigation, cover the current (arrow of Fig. 1 is represented current) that splash on propelling unit 5 sides, can prevent that sealing splashes in driving engine 2 and ships and light boats 7.Particularly, when for to ships and light boats 7 steerings and with outboard engine 1 body during with respect to ships and light boats 7 left-right rotation (the position 1a of Figure 14 or the position of 1b), by the side of water impact propelling unit 5 case members 10 under the hull bottom 7b, divide water plate 25b and flange 4c can cover splashing of these impact current but utilize.Therefore can reduce ships and light boats 7 running resistances, prevent the reduction of route speed.
Exhaust system, as mentioned above, it has: from exhaust chamber 29 and exhaust passage 31, exhaust passage 32, jet pipe 33 and exhausr port 33a that driving engine 2 is communicated with successively, the exhaust of driving engine 2 is discharged to the outside by them.
The aiutage 30 of driving engine 2 hangs down into the inner space of exhaust chamber 29.That is, the channel cross-sectional area of exhaust passage expands exhaust chamber 29 to sharp from aiutage 30.Therefore, the exhaust gas pressure of driving engine 2 changes (fluctuation of exhaust sound), is attenuated when aiutage 30 flows into exhaust chamber 29 in this exhaust, has reduced the exhaust sound of driving engine 2.
Because jet pipe 33, it is designed to protrude downwards unlike the sucking hole 9a that sucks shell 9.So when ships and light boats 7 navigation, do not have resistance to water-flow, and because it is along discharging shell 11, direction is extended setting forwards, backwards, so can prevent outboard engine 1 sideslip and the craspedodrome that improves ships and light boats 7.
Because exhausr port 33a, it is at the attached opening rearward of ejiction opening 11a downside of discharging shell 11, so the exhaust of driving engine 2 is discharged in the water in ships and light boats 7 navigation.Therefore, the exhaust gas pressure of driving engine 2 changes (fluctuation of exhaust sound), exhaust by water in when the decay that is depleted, therefore, reduced the exhaust sound of driving engine 2.The exhaust that gives off can not produce baneful influence to the navigation of ships and light boats 7.
The 2nd embodiment
Below, with reference to Fig. 6 and Fig. 7 the 2nd embodiment with other exhaust system is described.In addition, the part identical with the 1st embodiment used same-sign and omitted its explanation.
The exhaust system of present embodiment, it has 31 downstreams in the exhaust passage, and utilizes next door 35a and 35b to separate erecting bed 4 inner space 4d and the 1st expansion chamber 35 and the 2nd expansion chamber 37 and the 3rd expansion chamber 39 that form.
The 1st expansion chamber 35, be arranged on exhaust passage 31 about two outsides, and, be communicated with exhaust passage 31 by the exhausr port 34 on next door, the left and right sides 31a that is located at exhaust passage 31.
The 2nd expansion chamber 37 is configured in the place ahead of the 1st expansion chamber 35, and by connecting the straight tube (the 1st communicating pipe) 36 of next door 35a, is communicated with the 1st expansion chamber 35.
The 3rd expansion chamber 39 is configured in the rear of the 1st expansion chamber 35, and by connecting the straight tube (the 2nd communicating pipe) 38 of next door 35a and 35b, is communicated with the 2nd expansion chamber 37.
On the rear wall of the 3rd expansion chamber 39, connected the freeing pipe 40 that the 3rd expansion chamber 39 is communicated with space outerpace.Freeing pipe 40, it is opening rearward, and can will be discharged in air or the water.
According to the 2nd embodiment, the exhaust of driving engine 2, its after the exhaust chamber 29 from casing 3 flows in the erecting bed 4 of propelling units 5, successively from the exhaust passage 31 by exhausr port 34 flow to the 1st expansion chamber 35, then by flowing to the 2nd expansion chamber 37 the 1st communicating pipe 36, flowing to the 3rd expansion chamber 39 by the 2nd communicating pipe 38 then.The sectional area of exhaust passage, exhaust by exhausr port 34 and when flowing into the 1st expansion chamber 35, thereafter flow to the 2nd expansion chamber 37 from the 1st communicating pipe 36 when, thereafter flow to the 3rd expansion chamber 39 from the 2nd communicating pipe 38 when, sharply enlarge.The exhaust gas pressure of driving engine 2 changes (fluctuation of exhaust sound), and rapid expansion of passage that passes through because of exhaust decays.In the present embodiment, the exhaust of driving engine 2, owing at every turn by erecting bed 4 in, be repeated expansion, the further pressure variation that decayed during each expansion chamber, so can reduce the exhaust sound of driving engine 2 effectively.
In addition, owing to be incorporated in erecting bed 4 inside as the 1st of sound arrester～the 3rd expansion chamber, so can make outboard engine 1 miniaturization.
The 3rd embodiment
Below, with reference to Fig. 8 and Fig. 9 the 3rd embodiment with other drainage systems and exhaust system is described.In addition, the part identical with the 1st embodiment used same-sign and omitted its explanation.
In the present embodiment, constitute from driving engine 2 to the part of the drainage system of outside drain cooling water expansion tank the time,, be provided with the retained chamber 41 of formation to the exhaust system part of the waste gas of outside drain driving engine 2 in erecting bed 4 inside.That is, in retained chamber 41, when the cooling water expansion tank waste water that has passed through driving engine 2 flowed into from the drain hose 49a of the 2nd water circuit system, the waste gas of driving engine 2 31 flowed into from the exhaust passage.
Surge chamber 41, as shown in Figure 8, its be arranged on exhaust passage 31 about two outsides, be situated between by the opening 41b on next door, the left and right sides 41a that is located at exhaust passage 31, be communicated with exhaust passage 31.On this opening 41b, laid breaker plate 42.
Rear end in retained chamber 41 as shown in Figure 9, is provided with the next door 41c with specified altitude.Pars intermedia in retained chamber 41, the lower end horizon is than the low partition wall 41d in next door 41c upper end, and it hangs down from retained chamber's 41 ceilings.Flow down and flow into the cooling water expansion tank waste water of retained chamber 41 from drain hose 49a, blocked by the next door 41c at retained chamber 41 rears, and be stored in the retained chamber 41.Because the level height in breaker plate 42 holes, what be set up is lower than next door 41c upper end, thus the bottom of breaker plate 42 be submerged in the water that is stored in the surge chamber 41 always, must be by the waste gas of breaker plate 42 by the water that is stored.
On the other hand, utilize retained chamber's 41 surrounding walls that comprise next door 41c and partition wall 41d to form exhaust passage 43.Exhaust passage 43, its Jie is communicated with exhaust passage 31 by retained chamber 41, and has the opening towards the rear at the rear portion of erecting bed 4.
Owing to hang down into the partition wall 41d lower end level height of retained chamber's 41 pars intermedias, set for lower than the next door 41c upper end at retained chamber 41 rears, so partition wall 41d bottom is submerged in the water that is stored in the retained chamber 41, and water seal exhaust passage 43, so waste gas can pass through from waste water reliably.
According to the 3rd embodiment, be deflated chamber 29 noise reductions the waste gas of driving engine 2, flow into the exhaust passage 31 of erecting bed 4, and flow into retained chamber 41 by this breaker plate 42, pass through the waste water in being stored in retained chamber 41.The exhaust gas pressure of driving engine 2 changes (fluctuation of exhaust sound), waste gas from waste water by when be depleted, the high frequency waves of particularly having decayed (penetrating sound), therefore, the exhaust sound that can further reduce driving engine 2 makes its bassization.
In addition, if supply with tap water from the admission port 51 of Fig. 1, owing in retained chamber 41, can be detained waste water, so even the erasure effect that cleaning on land also can obtain when turning round and the ships and light boats navigation is same.
Below, with reference to Figure 11 and Figure 12, the protection net 44 of the 1st to the 3rd embodiment is described.
On the radicle 44a of protection net 44, binding has been fixed has flexual lever 45.This lever 45 is when protection net 44 CL in the closed position, and dismounting is fixed in the hold down groove 46 at the branch water plate 25b rear portion that is arranged at Figure 11 front casing 25 freely.
Hold down groove 46 is in that the off position CL of lever 45 from protection net 44 formed toward the position of the place ahead pushing again, so that cooperate with lever 45.At this moment, because lever 45 is to fix with the state of bending,, protection net 44 is in the state that is crushed on the sucking hole 9a surrounding edge that sucks shell 9 so being subjected to the recuperability of lever 45.
According to the structure of above-mentioned protection net 44, in ships and light boats 7 navigation,, and make protection net 44 away from the sucking hole 9a that sucks shell 9 if making lever 45 depart from hold down groove 46 rearward rotates, then can be with the current flushing attached to the rubbish on the protection net 44.After removing rubbish etc., cooperate with hold down groove 46 with case of bending once more as long as lever 45 forwards rotated, just protection net 44 can be laid on the sucking hole 9a, and can recover the function of protection net 44.
Adopt above-mentioned mechanism, can at an easy rate existing fixed formula protection net be changed into movablely, and can remove simply attached to the rubbish on the protection net.
Claims (19)
1. water spraying propelling outboard motor is characterized in that possessing:
Has the case member that sucks shell and discharge shell, wherein, suck shell and have sucking hole and form the curved tube shape flow channel that extends to oblique back upper place from sucking hole, discharge shell and have ejiction opening in the rear end and form the flow channel that extends to this ejiction opening from the rear end approximate horizontal of described suction shell at front end;
Extend the casing of setting upward from this case member;
Be installed in the driving engine on this casing;
Be configured in the gear case of described case member the place ahead and described sucking hole top;
Drive the longitudinal axis with described driving engine bonded assembly;
Approximate horizontal is arranged in the described suction shell, and in described gear case with the driven transverse axis of described driving longitudinal axis bonded assembly;
Be fixed on the described driven transverse axis, and be used for exterior water being sucked pressurization and from the impeller of described ejiction opening ejection from described sucking hole, it possesses and has near outer circumferential edges portion of the inner peripheral surface of described suction shell and forwards extend the spiral fashion fin of the front edge outer circumference portion that is provided with;
Be located near the pilot blade of ejiction opening of described discharge shell.
2. water spraying propelling outboard motor according to claim 1 is characterized in that: possess the exhaust system that the waste gas of described driving engine is discharged to the outside, it has: be located at described casing in-to-in the 1st exhaust system; Be located at the 2nd exhaust system in the described case member.
3. water spraying propelling outboard motor according to claim 2 is characterized in that: described the 2nd exhaust system has: be communicated with and surround the exhaust passage of described suction shell circle wall with described the 1st exhaust system; Near the exhausr port of the open lower side ejiction opening of described discharge shell.
4. water spraying propelling outboard motor according to claim 3 is characterized in that: described the 2nd exhaust system also possesses the jet pipe that the rear end has described exhausr port, and this jet pipe is provided with along the bottom of described exhaust shell.
5. water spraying propelling outboard motor according to claim 2 is characterized in that: described the 2nd exhaust system, and it possesses a plurality of expansion chambers that are communicated with described the 1st exhaust system; Be communicated with this expansion chamber and to the freeing pipe of outside blow down gas.
6. water spraying propelling outboard motor according to claim 2 is characterized in that: the cooling water system of described driving engine, and it comprises from the outside to the water supply system of described driving engine feedwater; From described driving engine to externally drained drainage system,
Described drainage system and exhaust system have the water that stores described drainage system, and the retained chamber that engine exhaust is passed through from the water of this storage.
7. water spraying propelling outboard motor according to claim 6 is characterized in that: the cooling water system of described driving engine, and it comprises the water pump from outer absorbent member; From the outside to 1 water circuit system of described water pump guide cooling water; From 2nd water circuit system of the described driving engine of described water pump process to exterior guiding water,
Described the 1st water circuit system, it possesses: from the water intaking portion of outside water intaking; Water is directed to the 1st water route of described water pump from described water intaking portion.
8. water spraying propelling outboard motor according to claim 7 is characterized in that: the sucking hole that the water intaking portion of described the 1st water circuit system is set up in parallel at described suction shell advances.
9. water spraying propelling outboard motor according to claim 7 is characterized in that: the water intaking portion of described the 1st water circuit system has the expansion water route broader than described the 1st water route.
10. water spraying propelling outboard motor according to claim 9 is characterized in that: form the expansion water route wall in described expansion water route, possess from the 1st opening of outside water intaking; With described the 1st water route bonded assembly the 2nd opening, and described the 1st opening advanced towards downside.
11. water spraying propelling outboard motor according to claim 10 is characterized in that: laid filter screen at described the 1st opening.
12. water spraying propelling outboard motor according to claim 10 is characterized in that: described expansion water route wall possesses from described the 2nd opening to the outstanding pipe that is provided with in the inside.
13. water spraying propelling outboard motor according to claim 7 is characterized in that: to the 3rd water circuit system of described water pump guiding, it comprises: the intake that is arranged on the described discharge housings between described impeller and the ejiction opening; With described intake is to bring in the straight tube pipeline that connects described discharge shell; From described straight tube line branching and water is imported the 3rd water route of water pump; Be located at filter screen on the described straight tube from external energy with loading and unloading flexibly.
14. water spraying propelling outboard motor according to claim 7 is characterized in that: possess admission port from tap water to described cooling water system that supply with.
15. water spraying propelling outboard motor according to claim 1 is characterized in that: possess can dismounting with respect to the described casing that described driving engine has been installed and described case member both sides installing component.
16. water spraying propelling outboard motor according to claim 1 is characterized in that: described case member has been established the front casing in described expansion water route in also possessing,
This front casing, itself and the concerted action of described suction shell formed the outer circumference surface of the streamline shape of described case member, and as the branch water plate that stretches out to foreign side, it are configured in top, described driven transverse axis axle center, and the lower position of described suction shell.
17. water spraying propelling outboard motor according to claim 1 is characterized in that: rotate to the left and right with respect to ships and light boats by making described outboard engine, carry out steering to described ships and light boats.
18. water spraying propelling outboard motor according to claim 3 is characterized in that: on described discharge shell, be provided with the commutation bucket of shunting about the current direction that will eject from described ejiction opening that retreats usefulness.
19. water spraying propelling outboard motor according to claim 1 is characterized in that: also have:
Rotate the protection net on the sucking hole circumferential edges that is supported in described suction shell freely;
The flexual lever that has with this protection net binding;
The hold down groove of described lever is fixed in dismounting freely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004101042008A CN100441477C (en) | 2004-12-30 | 2004-12-30 | Water spraying propelling outboard motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004101042008A CN100441477C (en) | 2004-12-30 | 2004-12-30 | Water spraying propelling outboard motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1796228A true CN1796228A (en) | 2006-07-05 |
| CN100441477C CN100441477C (en) | 2008-12-10 |
Family
ID=36817588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004101042008A Expired - Fee Related CN100441477C (en) | 2004-12-30 | 2004-12-30 | Water spraying propelling outboard motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100441477C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103010440A (en) * | 2013-01-11 | 2013-04-03 | 黄圭鹏 | Marine self-priming pump water spray propelling outboard engine |
| CN103612736A (en) * | 2013-11-25 | 2014-03-05 | 武汉船用机械有限责任公司 | Water-jet propulsion system with gear case |
| JP2020172241A (en) * | 2019-04-11 | 2020-10-22 | 般若科技股▲分▼有限公司 | Propulsion system for power type vessel |
| CN111824379A (en) * | 2019-04-18 | 2020-10-27 | 般若科技股份有限公司 | Marine propeller |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI741567B (en) * | 2020-04-22 | 2021-10-01 | 般若科技股份有限公司 | Built-in propulsion system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3889623A (en) * | 1974-01-31 | 1975-06-17 | Robert W Arnold | Jet propulsion unit for boats |
| CN2174422Y (en) * | 1993-10-16 | 1994-08-17 | 来成开发有限公司 | Exhaust unit of water-cooled engine apparatus for remote-control ship |
| JP3978265B2 (en) * | 1997-09-12 | 2007-09-19 | 本田技研工業株式会社 | Outboard exhaust passage |
| CN2464632Y (en) * | 2001-01-09 | 2001-12-12 | 中国人民解放军63983部队 | Axial flow water injection propelling pump |
| JP3935043B2 (en) * | 2002-10-11 | 2007-06-20 | 本田技研工業株式会社 | Outboard motor with water-cooled vertical engine |
| CN2761524Y (en) * | 2004-12-30 | 2006-03-01 | 株式会社石垣 | Jet pushing type outboard motor |
-
2004
- 2004-12-30 CN CNB2004101042008A patent/CN100441477C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103010440A (en) * | 2013-01-11 | 2013-04-03 | 黄圭鹏 | Marine self-priming pump water spray propelling outboard engine |
| CN103612736A (en) * | 2013-11-25 | 2014-03-05 | 武汉船用机械有限责任公司 | Water-jet propulsion system with gear case |
| JP2020172241A (en) * | 2019-04-11 | 2020-10-22 | 般若科技股▲分▼有限公司 | Propulsion system for power type vessel |
| CN111824379A (en) * | 2019-04-18 | 2020-10-27 | 般若科技股份有限公司 | Marine propeller |
| JP2020175877A (en) * | 2019-04-18 | 2020-10-29 | 般若科技股▲分▼有限公司 | Propulsion device for vessel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100441477C (en) | 2008-12-10 |
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Granted publication date: 20081210 Termination date: 20131230 |