CN101066703A - Outboard engine unit - Google Patents
Outboard engine unit Download PDFInfo
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- CN101066703A CN101066703A CNA2007101077782A CN200710107778A CN101066703A CN 101066703 A CN101066703 A CN 101066703A CN A2007101077782 A CNA2007101077782 A CN A2007101077782A CN 200710107778 A CN200710107778 A CN 200710107778A CN 101066703 A CN101066703 A CN 101066703A
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- engine
- right sides
- carriage
- engine unit
- cover
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Abstract
The invention provides a outboard engine unit. In an outboard engine unit, a cover assembly (20), defining a lower half section of an engine room (2i), is composed of left and right cover members (21,25) each formed of resin, and a bracket (30) is fixed to a rear portion of the engine (5) or engine support structure (6). The left and right cover members are fixed at their respective rear portions to the bracket (30). Centerline (L2) of an engine cylinder (5d) is offset from a centerline (L1) of the engine room toward one of left and right sides of the unit, and an ignition plug (140) is provided on the other side opposite from the one side toward which the engine cylinder centerline (L2) is offset.
Description
Technical field
The present invention relates to a kind of outboard engine unit, the left and right sides cover that will define the lower part of engine room in this outboard engine unit is mounted to driving engine or engine support structure and is supported by it, and this outboard engine unit is convenient to the dismounting of left and right sides cover/adhere to again.The invention still further relates to a kind of outboard engine unit, this outboard engine unit is convenient to the handling labor of the dismounting/adhere to such as light-up plug.
Background technology
In recent years, known such outboard engine unit, wherein the lower part of engine room by about comprising that resin makes (promptly, port side and starboard side) lower cover of cover (for example limits, TOHKEMY 2004-338463 communique and Te Kai 2001-199393 communique below are referred to as patent documentation 1 and patent documentation 2 respectively).
In patent documentation 1 disclosed outboard engine unit, the left and right sides cover of lower cover with each other directly against concern that bolted connection together.In patent documentation 2 disclosed outboard engine units, bottom (being lower cover) is fixed to engine main body, and half lid (being left and right sides cover) concerns that with what abut against each other bolted connection together about bottom.
For patent documentation 1 and patent documentation 2 disclosed outboard engine units, the fixed part of the main body of outboard engine unit must be positioned adjacent to the corresponding bearing part of left and right sides cover, with between the bearing part of realizing cover reliably suitably against; In fact, left and right sides cover tightens together by the shared bolt that passes their corresponding bearing parts and fixed part.
But for above-mentioned known traditionally outboard engine unit, during when remove or dismantle left and right sides cover for the handling labor of expecting in one, the fixing of another cover will become unstable.Therefore, re-assemblying of lid, about the suitable location of lid etc. can need sizable time and labor, can cause processibility relatively poor unfriendly like this.
In above-mentioned known traditionally outboard engine unit, also be provided with a part that is used for engine exhaust and be discharged into exterior auxiliary exhaust outlet and be used for the part of engine cooling water is discharged into the exterior water pilot hole of engine room.The hermetically-sealed construction that is used for sealing the auxiliary exhaust outlet is attached to any or two of the bearing part of port side cover and starboard side cover.Therefore, will dismantle in the cover any the time, also must the dismounting hermetically-sealed construction, thus disassembling section and subsequently to re-assembly the operation meeting pretty troublesome, can cause processibility relatively poor unfriendly like this.In addition, pipe of water pilot hole (hereinafter referred to as " water guide pipe ") etc. is directly supported by left and right sides cover.Therefore, will dismantle in the cover any the time, just need dismounting water guide pipe, thus disassembling section and subsequently to re-assembly the operation meeting pretty troublesome, this also can cause processibility relatively poor unfriendly.
Also known such outboard engine unit, wherein the axis of engine cylinder is with respect to the desaxe (for example, TOHKEMY 2001-115817 communique below is referred to as patent documentation 3) of bent axle.According to disclosing of patent documentation 3, the axis of engine cylinder is offset preset distance with respect to crankshaft center line along the direction that acts on the thrust on the piston.The inside face of cylinder head is provided with light-up plug.Therefore, in order to guarantee to carry out the used enough spaces of handling labor of light-up plug, necessary:
(a) increase the size of end cover (being lower cover), thereby guarantee the enough spaces in the end cover, perhaps
(b) reduce overhead guard (that is) lower end position, engine case, thus side direction exposes light-up plug when removing overhead guard.
If (a) item above getting, then the increase of end cover size can cause the increase of overhead guard size, this be because end cover and overhead guard with the edge to the edge against the vertical engagement that concerns be in the same place significantly increase of the weight of the overall dimension of outboard engine unit and overhead guard as a result.In addition, if above getting (b), the lower end position that then reduces overhead guard not only can cause having the bigger recessed degree of depth of overhead guard of dark bowl shape, and can cause the size of overhead guard and weight to increase, it is pretty troublesome and loaded down with trivial details that the result dismantles the operation meeting of overhead guard.
Usually, outboard engine unit adopts the vertical engine of the cylinder with vertical orientated bent axle and horizontal alignment; Specifically, the superpower outboard engine unit adopts the four-stroke motor with a plurality of cylinders.In such outboard engine unit, arrange a plurality of cylinders (for example, being four cylinders) with vertical arrangement under the situation of quadruple cylinder engine, between topmost cylinder and foot cylinder, very big perpendicular separation is arranged.For such multi-cylinder engine, engine main body has the vertical length of increase inevitably, and the overhead guard of bowl-type can have the bigger degree of depth as a result.
Summary of the invention
In view of above-mentioned prior art problems, an object of the present invention is to provide a kind of improved outboard engine unit, this outboard engine unit can make in the cover of the left and right sides any one easily dismantle and adhere to again, and can influence another cover sharply and also can not interfered owing to the existence of drain pipe overflow pipe hole and water pilot hole, thereby allow to break/re-assembly described lid.
Another object of the present invention provides a kind of improved outboard engine unit, this outboard engine unit can more easily carry out handling labor to the light-up plug that is arranged in the lower area in the engine room, and do not need to reduce significantly the lower end position of engine case (overhead guard), and this outboard engine unit can easily carry out the handling labor of light-up plug, and does not need to break or dismantle lower cover (end cover).
According to an aspect of the present invention, a kind of improved outboard engine unit is provided, this outboard engine unit comprises: cap assemblies, and this cap assemblies defines the lower part of the engine room that wherein accommodates driving engine, and described cap assemblies comprises the left and right sides cover that forms by resin; And carriage, this carriage is fixed to the rear portion of described driving engine or engine support structure, and described left and right sides cover is fixed to described carriage at their place, corresponding rear portion.
In outboard engine unit of the present invention, wherein, described carriage is fixed to the rear portion of described driving engine or engine support structure, and described left and right sides cover is fixed to described carriage at their place, corresponding rear portion, each in the cover of the described left and right sides can with described cover in another independently from described carriage dismounting and be attached to described carriage again.Therefore, compared with prior art, the present invention can obviously be convenient to for example break for handling labor and re-assembly described cap assemblies, and has improved processibility greatly.In addition, because only need to be provided with described carriage,, make corresponding trip edge respectively the trip edge of described cover is fixed to described carriage by bolt etc. then and get final product against described carriage so described carriage is fixed to the rear portion of described driving engine etc.Therefore, the present invention can simplify significantly described cover against connected structure, thereby simplify the structure of described outboard engine unit.
In an embodiment of the present invention, described carriage is formed with engagement groove in its opposed side edge, is used for engaging with the predetermined trip edge of described left and right sides cover.By the described engagement groove that is formed in the described carriage is engaged with the described trip edge of described left and right sides cover, the present invention can also be attached to described carriage with described left and right sides cover more easily by the guiding of described engagement groove is reliable more.
In an embodiment of the present invention, described left and right sides cover has corresponding junction surface stacked on top of each other, and each described junction surface all has taper hole.By bolt is passed described left and right sides cover at first along the left and right directions of described outboard engine unit each other the described taper hole of out-of-position be screwed into predetermined retaining thread part, thereby corresponding described junction surface is tightened described left and right sides cover is pushed toward each other, and described left and right sides cover is tightened together against described carriage.By making initial level out-of-position taper hole that bolt passes described left and right sides cover to tighten corresponding junction surface against described carriage, described left and right sides cover furthers toward each other by a kind of wedge.Therefore, the present invention can be easily fixed to described carriage with described left and right sides cover more reliably in a simplified manner.Can be provided with the blocking device that is used to lock engine case on the described carriage, in this case, the present invention can be provided with substrate and be exclusively used in the structure of blocking device on described cap assemblies, and can be between described carriage and described cap assemblies share components.
According to a further aspect in the invention, a kind of improved outboard engine unit is provided, this outboard engine unit comprises: cap assemblies, and this cap assemblies defines the lower part of the engine room that wherein accommodates driving engine, and described cap assemblies comprises the left and right sides cover that forms by resin; And carriage, this carriage is fixed to the rear portion of described driving engine or engine support structure, is provided with the auxiliary exhaust port in the described carriage, is used for the part of the exhaust of described driving engine is discharged into the outside of described engine room.
By being arranged on exterior described auxiliary exhaust port in the described carriage, that be used for the part of engine exhaust is discharged into engine room, be provided for the hermetically-sealed construction of auxiliary exhaust port on any that needn't be in the cover of the left and right sides.Therefore, the present invention is the element of the time dismounting of at least one in the cover of the left and right sides to be removed auxiliary exhaust port and hermetically-sealed construction at every turn, and also needn't when re-assemblying cap assemblies, adhere to the element of auxiliary exhaust port and hermetically-sealed construction again, thereby improve processibility.
According to another aspect of the invention, a kind of improved outboard engine unit is provided, this outboard engine unit comprises: cap assemblies, and this cap assemblies defines the lower part of the engine room that wherein accommodates driving engine, and described cap assemblies comprises the left and right sides cover that forms by resin; And carriage, this carriage is fixed to the rear portion of described driving engine or engine support structure, is provided with the water pilot hole in the described carriage, is used for the part of the cooling water expansion tank of described driving engine is discharged into the outside of described engine room.
By being arranged on the exterior water pilot hole that is used for the part of engine cooling water is discharged into engine room in the carriage, different with prior art constructions (wherein water guide part etc. directly support) by left and right sides cover, needn't dismantle the water guide pipe.Therefore, the present invention can make things convenient for the dismounting of any one cover/adhere to again widely, thereby has improved processibility.
According to another aspect of the invention, a kind of improved outboard engine unit is provided, this outboard engine unit comprises: engine room, inside at this engine room accommodates driving engine, and the side of the line of centers of engine cylinder in the left and right sides of described outboard engine unit is from the disalignment of described engine room; And light-up plug, this light-up plug is arranged on the opposite side in the described left and right sides, the disalignment of this opposite side and described engine cylinder towards a described side relative.By be arranged on the disalignment of described engine cylinder towards the relative side of a described side on light-up plug, the side that described light-up plug is set in the described cylinder head can have bigger space, thereby can more easily carry out the maintenance of described light-up plug.
In one embodiment, described engine room is limited by lower cover and the loam cake or the engine case that join described lower cover from the top to, and described lower cover is formed with recess in its part consistent with the pull-out direction of described light-up plug, and the female portion can pass through a cap opened/closed.By the female portion is set, above-mentioned space needn't be bigger than required, therefore is convenient to the failure-free sealing of the female portion.In addition, by according to desirably making described cap opened/closed the female portion, can further more easily carry out the maintenance of described light-up plug.
In one embodiment, described lower cover comprises the left and right sides cover that forms by resin, and in the cover of the described left and right sides one is formed with the female portion therein and is provided with described cap thereon.Because the female portion and cap must be arranged in the described cover only on one, so can handle the female portion and cap integratedly with described cover in the time will dismantling or adhere to a described cover again, the result can the most easily carry out the dismounting of described cover and adhere to again.
In one embodiment, outboard engine unit of the present invention can also comprise the carriage at the rear portion that is fixed to described driving engine or engine support structure.In this case, the left and right sides cover of described lower cover is fixed to described carriage, and described light-up plug be arranged such that this light-up plug pull out (promptly inserting/remove) direction not with the position consistency of described carriage.Therefore, the present invention is based on above-mentioned roughly the same reason and not only can make things convenient for breaking/re-assemblying of lower cover, but also made things convenient for the handling labor of light-up plug and do not relate to the interference that causes between carriage and the light-up plug.When carrying out the handling labor of described light-up plug, described left and right sides cover and carriage can keep being installed in appropriate location (that is, needn't dismantle).
Description of drawings
Only describe certain preferred embodiment of the present invention in detail with reference to the accompanying drawings in the mode of example, wherein:
Fig. 1 is the lateral plan of expression according to the outboard engine unit of the embodiment of the invention, and wherein internal mechanism dots;
Fig. 2 is the back view of outward appearance of the outboard engine unit of presentation graphs 1;
Fig. 3 is the exploded perspective view of the lower cover of outboard engine unit, has specifically illustrated motor support parts, front and back carriage etc.;
Fig. 4 is the amplification rearview of the primary member of outboard engine unit shown in Figure 2, specifically illustrated by tail-bracket to lower cover about the support of half lid and loam cake;
Fig. 5 is the cutaway view that the line 5-5 along Fig. 4 cuts open;
Fig. 6 is the cutaway view that the line 6-6 along Fig. 5 cuts open;
Fig. 7 is the cutaway view that the line 7-7 along Fig. 5 cuts open;
Fig. 8 is that expression is arranged on the inside face of tail-bracket and near the interior block diagram of member;
The block diagram of auxiliary exhaust port and water pilot hole part that Fig. 9 has been removing of tail-bracket;
Figure 10 is the cutaway view that the line 10-10 along Fig. 9 cuts open;
Figure 11 is the view of expression lower cover, wherein for the clear front portion that has removed loam cake or engine case and removed lower cover; And
Figure 12 is that instruction diagram is decomposed in the amplification of main element shown in Figure 11.
The specific embodiment
Referring now to included Fig. 1 to 3, wherein Fig. 1 is the lateral plan of expression according to the outboard engine unit 1 of the embodiment of the invention, wherein internal mechanism dots, Fig. 2 is the back view of the example outward appearance of expression outboard engine unit 1, and Fig. 3 is the exploded perspective view of the lower cover (or following cap assemblies) 20 of outboard engine unit 1, has specifically illustrated motor support parts, front and back carriage etc.
In the accompanying drawings, " Fr " expression outboard engine unit of the present invention applied ship push ahead direction, and " Rr " expression and ship push ahead the opposite backward directions of direction.
There is shown the example outward appearance of outboard engine unit 1 at the backsight of the lateral plan of Fig. 1 and Fig. 2.As shown, outboard engine unit 1 comprises lower cover (assembly) 20 and is arranged in engine case 2 in the uppermost position of unit 1, and engine case 2 and lower cover 20 define engine room 2i together on these.Extensional shell 3 is arranged on lower cover 20 belows, and the gear case 4 that is arranged in its lowermost position of unit 1 engages with the lower end of extensional shell 3.
In cylinder block 5b, be provided with a plurality of cylinder 5d (in current embodiment, the cylinder 5d of four horizontal alignments arranges with vertical arrangement), and in cylinder head 5c, be provided with a plurality of combustion chamber 5e that can open and close by inlet valve and exhaust valve.
Accommodate electric component 8 in the part of the right side of cylinder block 5b, this electric component 8 includes and is used for circuit card that engine ignitor and Fuel Injection Device are controlled.In addition, admission air silencer 9 is arranged on the place ahead of electric component 8 and extends to the zone in crankcase 5a the place ahead along crankcase 5a one side, and is furnished with electrical generator (alternating current generator) 10 above driving engine 5.
The bottom that vertical extent passes the crankcase 5a in-to-in bent axle 5f of driving engine 5 is connected to vertical drive shaft 12, and the bottom of axle drive shaft 12 is connected to the gear drive 13 that is contained in the gear case 4.Gear drive 13 will be sent to from the power that axle drive shaft 12 transmits along front and back orientations and be arranged on horizontal driven shaft 13a the gear case 4.The outstanding backward rear end that surpasses gear case 4 of the rearward end of driven shaft 13a, and screw propeller 14 is fixed to the rearward end of driven shaft 13a.Screw propeller 14 is by the power driven of driving engine 5, and switches between the direct rotational direction of screw propeller 14 and despining direction by a pair of claw clutch (dog clutch), thereby can be according to expectation acquisition propulsive force forward or backward.
Be discharged into the outside from the exhaust of above-mentioned main exhaust 7 middle section by screw propeller 14 then guided downward shown in arrow (a), and the part of exhaust such as arrow (b) are shown in and are discharged into the perimeter after being discharged into outboard engine unit 1.In installation housing 6, be provided with the exhaust passage near the main exhaust 7, and near the lower exit of main exhaust 7, be provided with the auxiliary exhaust port or manage 15.The auxiliary exhaust pipe 15 that is formed by vinyl chloride and rubber extends crooked backward simultaneously in the inside of engine installation housing 6, and the wall by lower cover 20 is to outside opening, thereby exhaust is being discharged into the perimeter after being discharged into outboard engine unit 1 shown in arrow (b).
Be provided with water pilot hole part 16 in the lower cover (assembly) 20, be formed with hole in this water pilot hole part to outside opening, and water pilot hole part 16 is discharged into outside (downward from lower cover 20) with the part of engine cooling water, to allow from checking visually whether cooling water expansion tank correctly flows to the engine cooling part.
Stern bracket 17 is supported on the leading section of outboard engine unit 1 by rotary shell 18. Reference numeral 18a and 18b represent to be used to support the installation rubber of rotary shell 18, and 5g represents food tray, and 5h represents light-up plug.
Referring now to Fig. 2, the loam cake 2 that defines in the lid of engine room 2i is integrally formed by resin, and lower cover (assembly) 20 comprises with concerning of abutting against each other (being port side and starboard side) cover (or half lid) about one is bonded together.Left and right sides cover or half lid are by resin forming.
Following paragraph will mainly be described the example structure of lower cover (assembly) 20 with reference to Fig. 3.
Partly cover 21 and 25 about lower cover 20 comprises, they all have the half elliptic shape when seeing in planar view.1 the fore-and-aft direction elongation of the shape of second lid 21 and 25 first half 21a of the left and right sides and 25a along the unit, and the lower part 21c of second lid 21 and 25 of the left and right sides and 25c are shorter than first half 21a and 25a along the length of fore-and-aft direction.More particularly, the lower part 21c of second lid 21 and 25 of the left and right sides and the front portion of 25c are to being recessed into, and anterior 21d and the 25d of first half 21a and 25a stretch out forward. Second lid 21 and 25 of the left and right sides also has the bonding part (only show a left side among Fig. 3 and partly cover 21 groove 21e) that is form of grooves, these bonding parts be formed in the interior surface opposing of second lid of the left and right sides and with symmetrical relation location each other (although invisible among the figure, right partly cover 25 interior engagement groove be formed on partly cover 21 the corresponding position of interior engagement groove 21e with a left side).When about partly cover 21 and 25 with edge each other to the edge against relation when being bonded together, to be assemblied in the above-mentioned interior engagement groove, along the periphery flange part 6f and the sealing element 6g disposed thereon of engine installation housing 6 between engine installation housing 6 and lower cover (assembly) 20, to provide gas tight seal.
As further shown in Figure 3, engine installation housing 6 has: hole 6b, and the shifter bar vertical extent that passes S. A. is by this hole; The hole 6a that the axle drive shaft vertical extent passes through; Engine installation flange 6c; Be used to make oil to get back to the opening 6e of food tray; The hole 6d that main exhaust 7 vertical extent pass through; Or the like.
In addition, the right anterior 25d that partly covers 25 top 25a is recessed downwards, and harness lid (harness cover) 22 is placed on the recessed portion of anterior 25d and one is fixed thereon, thereby provides the complete right side partly to cover 25.
In Fig. 3, when with about partly cover 21 and 25 when being bonded together with the relation that abuts against each other, front rack 24 is positioned between the front end of anterior 21d and 25d.Front rack 24 comprises the upwards semicircle hold-down arm 24a of orientation on its starboard side.The cable bundle retainer 23 that rubber is made keeps or is clamped in the semicircle hold-down arm 24a of orientation upwards and is formed between the semicircle recess 22a that harness covers the downward orientation in 22 leading sections, thereby keep the cable bundle by this way, make the cable bundle can introduce engine room 2i or withdraw from from engine room 2i.Front rack 24 also comprises the motion arm 24b with securing rod, and this securing rod can engage with the hook 2a (Fig. 1) on the leading section that is arranged on loam cake 2 by the operation of handle.
Partly cover 21 and 25 about lower cover 20 and have and join the back of tail-bracket 30 to and go up against (joint) portion, this will be described in detail later.
Fig. 4 is the amplification rearview of shown in Figure 2 main (or relevant) member, specifically illustrated by tail-bracket to lower cover 20 about the support of half lid and loam cake 2.Fig. 5 is the cutaway view that the line 5-5 along Fig. 4 cuts open, and Fig. 6 is the cutaway view that the line 6-6 along Fig. 5 cuts open, and Fig. 7 is the cutaway view that the line 7-7 along Fig. 5 cuts open.In addition, Fig. 8 is that expression is arranged on the inside face of tail-bracket 30 and near the interior block diagram of member, the block diagram of auxiliary exhaust port and water pilot hole part that Fig. 9 has been removing of tail-bracket 30, and Figure 10 is the cutaway view that the line 10-10 along Fig. 9 cuts open.
Following paragraph with reference to above-mentioned accompanying drawing describe tail-bracket 30 and lower cover (assembly) 20 about partly cover 21 and 25 rear portion and how to install and support.
Tail-bracket 30 partly covers 21 and 25 corresponding upper back about being arranged for and adhering to respect to driving engine.The pipeline of auxiliary exhaust port one 5 and water pilot hole part 16 exposes on interior (or dorsad) surface of tail-bracket 30.
The shape of tail-bracket 30 is along the vertical direction elongation of outboard engine unit 1.The main body 31 of tail-bracket 30 is the form (see figure 4) of the plate with lower part crooked gradually or that diminish gradually haply downwards when the rear is seen; That is, tail-bracket main body 31 roughly has the shape of shield when the rear is seen.
The plate-like body 31 of tail-bracket 30 has forward recess 31a between the vertical centering control of (promptly inside) protuberance, as know finding in Fig. 8 and Fig. 9.Recess 31a has constituted the manual operation section of lock operation arm described later.Each other laterally away from and oblique stretch out down about arm 32 and main body 31 be installed upper inner surface partly be wholely set, and expose towards the zone line of the rear surface of lower cover 20; About arm 32 be installed formed downward broken line structure together.Arm 32 is installed is had corresponding mounting hole 32a at their respective distal end place, and the whole strengthening rib structure that forms the groove-type cross sectional shape.
Formation as about pars intermedia 32b vertical sponson 32c about their place, opposite end is formed with of the base portion of arm 32 is installed.Horizontal maintaining part 32d extends between sponson 32c, and installs in the opposed end of nut 33 embedding maintaining part 32d.Outer surface region is provided with the hinged support section 32e of lock operation arm on the plate-like body 31, is used for the pivot base portion of support operation arm 40.
Opposed side edge along plate-like body 31 also is provided with the groove 34 that inwardly concaves along the Width of main body 31 therein, and the width of recessed groove 34 is bigger slightly than the thickness that partly covers 21 and 25.
In addition, plate-like body 31 is formed with bolt hole 35 in the 31b of its bottom, and the position corresponding to bolt hole 35 has been wholely set installation base part 36 on the inner surface area of main body 31.Nut 37 is embedded in the inside face of installation base part 36 and is fixed thereon by welding etc.
All be arranged on aforesaid operations arm 40 on the tail-bracket 30, control lever 40b and the axle 40c lock hook 2b on the binding engine lid 2 and constituted the blocking device of engine case 2 together.
In plate-like body 31, below above-mentioned recess 31a, be formed with and be used to that the auxiliary exhaust port is installed or manage 15 hole 38, and below mounting hole 38, be formed with the hole 39 that is used to install water pilot hole part 16.Auxiliary exhaust pipe mounting hole 38 has the diameter bigger than water targeting part mounting hole 39.As can be seen from Figure 4, the auxiliary exhaust port or manage 15 and water pilot hole part 16 to the rear surface of carriage 30 opening.
Auxiliary exhaust port one 5 has near upstream portion 15a the inside face of plate-like body of being positioned at 31 and the upstream-end opening part with flange 15b.Flange 15b is against the zone around auxiliary exhaust pipe mounting hole 38 of body inner surface.In addition, the pipe 16a of water pilot hole part 16 dots in Fig. 4 and stretches out inside face above plate-like body 31 forward or inwardly, and the mouth 16b of water pilot hole part 16 is assemblied in the hole 39, as shown in Figure 8.
Referring now to Fig. 4 to Fig. 7, describe about how tail-bracket 30 and driving engine 5 being installed and how being made tail-bracket 30 and partly cover 21 and link to each other with 25.
As shown in Figure 4, horizontal away from each other outwardly directed mount pad part 5i is arranged on the left and right sides zone of rear surface 5k of cylinder head 5c, and arm 32 is installed about laterally outwardly directed from plate-like body 31 is fixed to mount pad part 5i corresponding to the bolt 42 of mounting hole 32a by means of the corresponding collar 41 by size.
In the above described manner, tail-bracket 30 adheres to (that is, install and support) rear surface to driving engine 5.Tail-bracket 30 can be attached to the rear surface of engine installation housing 6 rather than driving engine 5.
About partly cover 21 with 25 accordingly above trip edge 121c and 125c, be provided with the vertically extending junction surface 121 and 125 that concerns each other in relative (left-right symmetric), they all have along the unit 1 the relative width smaller of left and right directions.In addition, connect the installation base 121a be formed with horizontal mounting hole 121b and 125b and 125a be arranged to from the junction surface 121 with 125 vertical the stretching out in relative upper end; Installation base 121a and 125a are to locate each other in symmetrical relation.
About partly cover 21 and 25 abut against each other against trip edge 121c and 125c, and the lateral edges of junction surface 121 and 125 assembling ground is bonded on the recessed groove 34 interior (see figure 7)s in the left and right sides edge of the plate-like body 31 that is formed at tail-bracket 30.
Be arranged on installation base 121a and 125a and the surface area that is formed on tail-bracket 30 on junction surface 121 and 125 the upper end cooresponding vertical sponson 32c against.Then, bolt 43 from the mounting hole 121b and 125b of laterally inserted installation base 121a in the outer end of boss 121a and 125a and 125a, and screw in is installed nut 33.By this way, installation base 121a and 125a are fixed to the upper end, the left and right sides of tail-bracket 30, partly cover 21 and 25 upper end about making and adhere to (that is, install and support) to carriage 30.
Make ornamental bolt pass mounting hole in the bottom that is formed on bracket main body 31, and it is stacked on top of each other and be fixed together by nut 37 on nut 37 (see figure 3)s to be formed near the mounting hole 31k lower end of half lid 21 and 25 junction surface 121 and 125 (only can see in Fig. 3 that a left side partly cover 21 mounting hole 31k), and this will be described later.
In the current embodiment that constitutes in the above described manner, only the main body 31 of carriage 30 is exposed on the rear surface of loam cake and lower cover 20, and be used for various members be mounted to driving engine 5 and about partly cover 21 and 25 element and covered by described lid.
Joining base part 121d and 125d are arranged on the relative and stacked relation of level each other on the bottom of junction surface 121 and 125 and from this and stretch out.One of them joining base part 121d forms to curve inwardly and enters the recessed portion of engine room, and another joining base part 125d has the corresponding wall thickness of the recessed degree of depth with a described joining base part 121d.These joining base part 121d and 125d have the respective outer surfaces that flushes each other.
Shown in Fig. 6 (a), joining base part 121d and 125d have taper hole part 121e and 125e, and these taper hole parts all have diameter and the perforation bigger than the threaded portion 44a of step bolt 44 and form porose 121f or 125f.Step bolt 44 closely pass through hole 121f and 125f than major diameter part 44b.
It is local each other stacked that joining base part 121d and 125d are positioned at first along the unit 1 fore-and-aft direction, and 1 left and right directions is offset each other along the unit; Therefore, taper hole part 121e and 125e are offset each other along left and right directions at first, shown in Fig. 6 (a).
Bolt 44 inserted the hole 39 in the bottom of passing the plate-like body 31 that is formed on carriage 30, make the threaded portion 44a of bolt pass hole 121f and the 125f of joining base part 121d and 125d loosely, screw in then by welding and wait the nut 37 that is fixed to installation base part 36, this installation base part 36 is arranged on the inner surface area of main body 31 regularly.Nut 37 is as the retaining thread parts.
Along with the carrying out in bolt 44 screw-in nuts or the retaining thread parts 37, the taper hole part 121e of joining base part 121d makes two seat part 121d and 125d further gradually each other by alignment actions in the arriving by the taper hole part 125e of outer engagement seat part 125d than major diameter part 44b of bolt 44.At last, junction surface 121 and 125 is bonded together in the bottom of carriage 30, make hole 121f and 125f keep axially aligning and seat part 121d and 125d keep facing each other against relation, shown in Fig. 6 (b).
As shown in Figure 5, lock hook 2b is to be arranged on the following back surface area of loam cake 2 with the vertically opposite relation of motion arm 40.Control lever 40b by motion arm 40 makes securing rod 40a engage with lock hook 2b around axle 40c pivot, thereby the back of engine case 2 is locked in make position, promptly in make position loam cake 2 is fixed to lower cover 20.
In Fig. 5, lock hook 2b is fastened to the back of engine case 2 by rivet 2c.In Fig. 4 and Fig. 5, Reference numeral 6h represents auxiliary exhaust passageways, and it is arranged in the engine installation housing 6 and at one end is communicated with the downstream part 15c of auxiliary exhaust port one 5, thereby makes the part of engine exhaust can flow to auxiliary exhaust port one 5.
Because auxiliary exhaust port one 5 and water pilot hole part 16 are arranged in the tail-bracket 30 that supports lower cover 20 as mentioned above, so current embodiment can dismantle the pipeline of auxiliary exhaust port ones 5, water pilot hole part 16, sealing element etc. from lower cover 20 when dismantling lower cover 20 for the work of expecting.Therefore, in current embodiment, after the work of expectation, do not need to be used for to adhere to again the operation of the pipeline of auxiliary exhaust port one 5, water pilot hole part 16, sealing element etc.Therefore, even under the situation that is provided with auxiliary exhaust port one 5 and water pilot hole part 16, the operation that also only needs to dismantle lower cover 20 for the work of expecting.
In addition, in current embodiment, partly cover 21 and 25 about lower cover 20 and install independently of one another and be supported on the tail-bracket 30.Therefore, even, partly cover 25 or 21 about another and still keep being attached to tail-bracket 30, can be convenient to the dismountings of described one and half lids and adhering to again of described subsequently one and half lids like this when when carriage 30 dismounting partly covers 21 or 25 about one of them.
In Fig. 1, Fig. 2 and Fig. 4, Reference numeral 26 expression is arranged on the light-up plug service cap on the uppermost region of rear surface of one of second lid of the left and right sides (partly covering 25 for the bottom right in the above-described embodiments).By dismounting light-up plug service cap 26, light-up plug can be exposed to the engine chamber in any the cylinder head that is limited in the cylinder of arranging with vertical arrangement, thereby can carry out the inspection, replacement operation etc. of light-up plug; At this moment, needn't dismantle the engine case 2 that is positioned at lower cover 20 tops.
In addition, when understanding some light-up plugs that be difficult to check the lower position that is arranged in vertical arrangement owing to the existence of lower cover when waiting to checking under the situation that has removed engine case 2 with the light-up plug of arranging corresponding to the vertical arrangement of cylinder.Yet dismounting cap 26 can be so that this light-up plug inspection.
Figure 11 is that expression removes loam cake or engine case 2 and removes the view of lower cover (assembly) 20 of the front portion of lower cover 20 for the ease of demonstration, and Figure 12 is that instruction diagram is decomposed in the amplification of main element shown in Figure 11.
The crankcase 5a of driving engine 5 is arranged in the front area of engine room 2i, and cylinder block 5b is arranged in the zone line of engine room 2i, and cylinder head 5c and cylinder-cover jacket (not shown) are arranged in the Background Region of engine room 2i.
The centre line L 2 of extending along the fore-and-aft direction of outboard engine unit 1 of cylinder 5d among the cylinder block 5b and unit 1 central authorities cross centre line L 1 that the width of unit 1 extends towards the unit 1 left side or port side (right side among Figure 11) biasing or departure distance D.
As shown in figure 11, the centre line L 1 of outboard engine unit 1 is corresponding with the center of the center of bent axle 5f and axle drive shaft 12, and with engine room 2i to cross the line of centers of width of engine room 2i in central authorities consistent.Bent axle 5f rotates along the direction of arrow among Figure 11.
Therefore, the driving engine 5 that comprises cylinder head 5c left side or port side (right side among Figure 11) skew of 1 towards the unit, thereby (that is starboard side) space, right side (leftward space among Figure 11) 4a is bigger than space, left side (that is port side) (rightward space among Figure 11) 4b.
The hole 53c that is used for that light-up plug 140 is installed therein and is communicated with combustion chamber 5e is formed on cylinder head 5c with the extension that recedes in than large space 4a, and light-up plug 140 passes hole 53c.
Light-up plug 140 comprises the 140a of electrode portion that is arranged on its far-end and is positioned at combustion chamber 5e and has the axis body 140b that insulating material also extends through mounting hole 53c obliquely.The terminal that is arranged on axis body 140b top is connected with terminal in being arranged on cup-shaped head 141 by the high tension lead, and is supplied with the electric power from the interior terminal of head 141.
From the outwardly directed light-up plug head 141 of cylinder head 5c is arranged in L shaped space 53e between the end face surface of cylinder-cover jacket (that is, against) of the exhaust passage part 53d that is limited to cylinder head 5c and cylinder head 5c.Head 141 in the face of or towards starboard side or right side (left side among the figure) rear surface 20a, but its will never towards about partly cover 21 and 25 by the be bonded together back junction surface at place of tail-bracket 30.The axis L3 of light-up plug 140 and mounting hole 53c are towards from tail-bracket 30 out-of-position starboard sides or right side rear region.
The last zone of the rear surface 135 (Fig. 4) of second lid on the extended line of the axis L3 that is arranged in light-up plug 140 (being right side or starboard side half lid (Zuo Bangai of figure) 25) is formed with recess 142.
As shown in figure 12, cap 26 comprises that shape is corresponding to the tabular body 26a of recess 142, form thereon strengthening rib 26b and arm 26c along the periphery of the inside face of cap 26.Arm 26c is formed with mounting hole 26d in the one end regions.
The outward flange of contiguous recess 142 is provided with support bar 144 on the inside face of You Bangai 25, and support bar 144 has mounting screw hole 144a.The mounting hole 26d that bolt 45 passes cap 26 with mounting screw hole 144a threads engage, thereby in make position cap 26 is fixed to recess 42.In Figure 11 and Figure 12, Reference numeral 53b represents camshaft.
Can be by removing loam cake or engine case 2 and bolt 45 from recess 142 dismounting caps 26, as shown in figure 12.
Can shown in arrow (c), pull out the light-up plug 140 of its axis L3 towards recess 142 from recess 142.Because space 4a is relatively large, thus not only can easily pull out with light-up plug 140 patchhole 53c and from hole 53c, and can be easily exhaust passage part 53d of cylinder head 5c etc. be installed in the appropriate location.
In addition, because about partly cover 21 and 25 and be attached to tail-bracket 30 at their respective upper place, and because carriage 30 is not positioned on the direction of pulling out with light-up plug 140 patchhole 53c and from hole 53c (promptly, insertion/the pull-out direction of light-up plug 140 does not also correspond to the position of tail-bracket 30), thus the insertion of light-up plug 140/remove and will never interfere with the existence of tail-bracket 30.
Above-mentioned cover attaching construction down can suitably be applied to the lower cover of outboard engine unit.In addition, light-up plug, the above-mentioned location that is used to the cap safeguarding the recess of light-up plug and be used for the opened/closed recess and orientation can suitably be applied to outboard engine unit.
Claims (16)
1, a kind of outboard engine unit, this outboard engine unit comprises:
Cap assemblies (20), this cap assemblies define the lower part of the engine room (2i) that wherein accommodates driving engine (5), and described cap assemblies comprises the left and right sides cover (21,25) that forms by resin; With
Carriage (30), this carriage are fixed to the rear portion of described driving engine (5) or engine support structure (6), and described left and right sides cover is fixed to described carriage at their place, corresponding rear portion.
2, outboard engine unit according to claim 1, wherein, described carriage (30) is formed with groove (34) in its opposed side edge, is used for engaging with the predetermined trip edge of described left and right sides cover (21,25).
3, outboard engine unit according to claim 1, wherein, described left and right sides cover (21,25) have corresponding junction surface stacked on top of each other (121d, 125d), each described junction surface all have taper hole (121e, 125e),
By bolt (44) is passed at first along the left and right directions of described outboard engine unit each other the corresponding described taper hole of out-of-position be screwed into predetermined retaining thread part (37), thereby corresponding described junction surface is tightened described left and right sides cover is pushed toward each other, and described left and right sides cover is tightened together against described carriage.
4, outboard engine unit according to claim 1, wherein, described carriage be provided with the blocking device that is used to lock engine case (2) (40,40b, 40c).
5, a kind of outboard engine unit, this outboard engine unit comprises:
Cap assemblies (20), this cap assemblies define the lower part of the engine room (2i) that wherein accommodates driving engine (5), and described cap assemblies comprises the left and right sides cover (21,25) that forms by resin; With
Carriage (30), this carriage are fixed to the rear portion of described driving engine (5) or engine support structure (6), are provided with auxiliary exhaust port (15) in the described carriage, are used for the part of the exhaust of described driving engine is discharged into the outside of described engine room.
6, outboard engine unit according to claim 5, wherein, described left and right sides cover locates to be connected to described carriage at their corresponding rear portions.
7, outboard engine unit according to claim 6, wherein, described left and right sides cover (21,25) have corresponding junction surface stacked on top of each other (121d, 125d), each described junction surface all have taper hole (121e, 125e),
By bolt (44) is passed at first along the left and right directions of described outboard engine unit each other the described taper hole of out-of-position be screwed into predetermined retaining thread part (37), thereby corresponding described junction surface is tightened described left and right sides cover is pushed toward each other, and described left and right sides cover is tightened together against described carriage.
8, outboard engine unit according to claim 6, wherein, described carriage (30) be provided with the blocking device that is used to lock engine case (2) (40,40b, 40c).
9, a kind of outboard engine unit, this outboard engine unit comprises:
Cap assemblies (20), this cap assemblies define the lower part of the engine room (2i) that wherein accommodates driving engine, and described cap assemblies comprises the left and right sides cover that forms by resin; With
Carriage (30), this carriage are fixed to the rear portion of described driving engine (5) or engine support structure (6), are provided with water pilot hole (16) in the described carriage, are used for the part of the cooling water expansion tank of described driving engine is discharged into the outside of described engine room.
10, outboard engine unit according to claim 9, wherein, described left and right sides cover locates to be connected to described carriage at their corresponding rear portions.
11, outboard engine unit according to claim 10, wherein, described left and right sides cover (21,25) have corresponding junction surface stacked on top of each other (121d, 125d), each described junction surface all have taper hole (121e, 125e),
By bolt (44) is passed at first along the left and right directions of described outboard engine unit each other the corresponding described taper hole of out-of-position be screwed into predetermined retaining thread part (37), thereby corresponding described junction surface is tightened described left and right sides cover is pushed toward each other, and described left and right sides cover is tightened together against described carriage.
12, outboard engine unit according to claim 10, wherein, described carriage is provided with the blocking device that is used to lock engine case.
13, a kind of outboard engine unit, this outboard engine unit comprises:
Engine room (2i) accommodates driving engine (5) in the inside of this engine room, the side of line of centers (L2) in the left and right sides of described outboard engine unit of engine cylinder (5d) is from line of centers (L1) skew of described engine room; With
Light-up plug (140), this light-up plug are arranged on the opposite side in the described left and right sides, described line of centers (L2) skew of this opposite side and described engine cylinder towards a described side relative.
14, outboard engine unit according to claim 13, wherein, described engine room (2i) is limited by lower cover (20) and the engine case (2) that joins described lower cover from the top to, and described lower cover is formed with recess (42) in its part consistent with the pull-out direction of described light-up plug, and the female portion can pass through cap (26) opened/closed.
15, outboard engine unit according to claim 14, wherein, described lower cover (20) comprises the left and right sides cover (21,25) that forms by resin, and in the cover of the described left and right sides one is formed with the female portion (142) therein and is provided with described cap (26) thereon.
16, outboard engine unit according to claim 15, wherein, this outboard engine unit also comprises the carriage (30) at the rear portion that is fixed to described driving engine (5) or engine support structure (6), and
Wherein, the described left and right sides cover of described lower cover is fixed to described carriage, and described light-up plug (140) be arranged such that described pull-out direction not with the position consistency of described carriage (30).
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006127667A JP4721438B2 (en) | 2006-05-01 | 2006-05-01 | Outboard motor |
| JP2006-127667 | 2006-05-01 | ||
| JP2006-127504 | 2006-05-01 | ||
| JP2006127667 | 2006-05-01 | ||
| JP2006127504 | 2006-05-01 | ||
| JP2006127504A JP4833723B2 (en) | 2006-05-01 | 2006-05-01 | Outboard motor |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101731935A Division CN101412438B (en) | 2006-05-01 | 2007-04-29 | Outboard engine unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101066703A true CN101066703A (en) | 2007-11-07 |
| CN101066703B CN101066703B (en) | 2010-06-02 |
Family
ID=38766860
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101731935A Expired - Fee Related CN101412438B (en) | 2006-05-01 | 2007-04-29 | Outboard engine unit |
| CN2007101077782A Expired - Fee Related CN101066703B (en) | 2006-05-01 | 2007-04-29 | Outboard engine unit |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101731935A Expired - Fee Related CN101412438B (en) | 2006-05-01 | 2007-04-29 | Outboard engine unit |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4833723B2 (en) |
| CN (2) | CN101412438B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352751A (en) * | 2013-07-09 | 2013-10-16 | 杭州海的动力机械有限公司 | Labyrinth-type idling air exhaust device of outboard engine |
| CN104047696A (en) * | 2013-03-16 | 2014-09-17 | 江苏普盛动力股份有限公司 | Exhaust system at underwater flow guide plate part of outboard engine for boat |
| CN109641643A (en) * | 2016-06-21 | 2019-04-16 | 布莱恩·普洛沃斯特 | Outboard motor closed loop chiller system |
| CN111698852A (en) * | 2019-03-11 | 2020-09-22 | 矢崎总业株式会社 | Resin structure |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4708673A (en) * | 1985-07-03 | 1987-11-24 | Outboard Marine Corporation | Outboard motor cowl assembly |
| JP2837425B2 (en) * | 1989-04-17 | 1998-12-16 | 本田技研工業株式会社 | Outboard engine |
| DE4237157C2 (en) * | 1992-11-04 | 1996-01-25 | Sotralentz Sa | Pallet container with a pallet, an outer jacket and an inner container made of plastic |
| JP2001115817A (en) * | 1999-10-14 | 2001-04-24 | Sanshin Ind Co Ltd | Breather chamber structure for outboard motor |
| JP4386520B2 (en) * | 2000-01-14 | 2009-12-16 | 本田技研工業株式会社 | Outboard motor |
| JP4331845B2 (en) * | 2000-01-17 | 2009-09-16 | 本田技研工業株式会社 | Exhaust gas sampling pipe mounting structure for outboard motors |
| JP2001213395A (en) * | 2000-02-07 | 2001-08-07 | Honda Motor Co Ltd | Outboard engine |
| JP4563596B2 (en) * | 2001-01-19 | 2010-10-13 | 本田技研工業株式会社 | Outboard motor |
| EP1316499B1 (en) * | 2001-11-29 | 2008-05-14 | Yamaha Marine Kabushiki Kaisha | Outboard motor |
| JP4064174B2 (en) * | 2002-07-18 | 2008-03-19 | 本田技研工業株式会社 | Engine cover structure of outboard motor |
| CA2434998C (en) * | 2002-07-18 | 2010-05-25 | Honda Giken Kogyo Kabushiki Kaisha | Cover joining structure for outboard engine unit |
-
2006
- 2006-05-01 JP JP2006127504A patent/JP4833723B2/en active Active
-
2007
- 2007-04-29 CN CN2008101731935A patent/CN101412438B/en not_active Expired - Fee Related
- 2007-04-29 CN CN2007101077782A patent/CN101066703B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047696A (en) * | 2013-03-16 | 2014-09-17 | 江苏普盛动力股份有限公司 | Exhaust system at underwater flow guide plate part of outboard engine for boat |
| CN103352751A (en) * | 2013-07-09 | 2013-10-16 | 杭州海的动力机械有限公司 | Labyrinth-type idling air exhaust device of outboard engine |
| CN109641643A (en) * | 2016-06-21 | 2019-04-16 | 布莱恩·普洛沃斯特 | Outboard motor closed loop chiller system |
| CN111698852A (en) * | 2019-03-11 | 2020-09-22 | 矢崎总业株式会社 | Resin structure |
| CN111698852B (en) * | 2019-03-11 | 2021-09-14 | 矢崎总业株式会社 | Resin structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101412438B (en) | 2010-11-10 |
| JP4833723B2 (en) | 2011-12-07 |
| CN101066703B (en) | 2010-06-02 |
| CN101412438A (en) | 2009-04-22 |
| JP2007296994A (en) | 2007-11-15 |
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