CN102162418B - Spark-ignition engine - Google Patents
Spark-ignition engine Download PDFInfo
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- CN102162418B CN102162418B CN201010288304.4A CN201010288304A CN102162418B CN 102162418 B CN102162418 B CN 102162418B CN 201010288304 A CN201010288304 A CN 201010288304A CN 102162418 B CN102162418 B CN 102162418B
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Abstract
The invention provides a spark-ignition type engine including a plug hole (13) formed in a cylinder head (2), an ignition plug (10), an ignition-coil-integrated-type plug cap (9) mounted on the ignition plug (10) with the plug cap (9) inserted into the plug hole (13). In the spark-ignition type engine, the plug hole (13) is arranged at an outside position further than a head cover (5) in the cylinder head (2), and a plug cap mounting flange (11) is fitted on a head surface (2a) where the plug hole (13) of the cylinder head (2) is disposed, and further an extended tubular portion (15) with an extended hole (15A) communicating with the plug hole (13) is formed in the plug cap mounting flange (11). Furthermore, a coil (9C) of the plug cap (9) inserted from the extended hole (15A) into the plug hole (13) is fixed to the extended tubular portion (15).
Description
Technical field
The present invention relates to a kind of spark ignition engines, relate more specifically to a kind of spark ignition engines comprising following parts: consent, be provided with plug mounting hole in inner side at it, and be formed in cylinder head; Igniter plug, engages with plug mounting hole with thread fiting mode; And the gag to be integrally formed with spark coil, that is when described gag is inserted in consent, gag is mounted to igniter plug (direct ignition gag).
Background technique
Such motor, namely the gag of pattern integrated with spark coil is adopted (and to distribute corresponding spark coil to each igniter plug of each cylinder, and control distribution with electrical power distribution systems to correspond to the timing of cylinder) spark ignition engines, there is very long working life, and the electric wave noise produced by high voltage electric energy distributor can be reduced.And this spark ignition engines has certain degrees of freedom on ignition timing, and at optimum igniting timing controlled point than electrical distribution system advantageously, thus become main flow.
Such as, as shown in Figure 2, patent documentation 1 disclose, the gag of pattern integrated with spark coil has following structure: fill in the consent being inserted into and being arranged in depths, be used as being arranged on the igniter plug between a pair mutually opposing suction valve and outlet valve.Spark coil is positioned on the installation recess by making the upper surface of cylinder top cover be formed to lower recess, and is fixed on this place.
The protection cylinder component forming consent is assembled in the mounting hole of cylinder head, and its upper end extends through cylinder top cover.Therefore, gag can take to fall above top cover enter protection cylinder component mode install.
Prior art document
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 5-099112 patent gazette.
Summary of the invention
The problem to be solved in the present invention
Protection cylinder component is pressed in the inner side of cylinder top cover in the consent of cylinder top cover, causes engine lubricating oil likely to invade the problem of consent thus.
The object of this invention is to provide a kind of spark ignition engines, it does not allow engine lubricating oil to invade, and can perform stable spark ignition, thus adopts the structure of the gag utilizing pattern integrated with spark coil.
For the means of dealing with problems
As shown in Figure 3, the invention provides a kind of spark ignition engines, it comprises: consent 13, is provided with plug mounting hole 12 in inner side, and is formed in cylinder head 2 at it; Igniter plug, engages with plug mounting hole 12 with thread fiting mode; And the gag 9 of pattern integrated with spark coil, when described gag is inserted in consent 13, described gag is installed to igniter plug 10.
As shown in Figure 3, in such engines, consent 13 be arranged in cylinder head 2 top cover 5 outside position; The cap surface 2a of cylinder head 2 opens wide to form consent 13, and has gag mounting flange 11 to be installed to cap surface; And flange 11 is formed and stretches out a portion 15, described in stretch out a portion there is the elongated hole 15A be communicated with consent 13.When gag 9 is inserted into consent 13 from elongated hole 15A, the coil portion 9C of gag 9 is fixed to and stretches out a portion 15.
Invention effect
As shown in Figure 3, in this motor, consent 13 is arranged on the position outside the top cover 5 in cylinder head 2.This arrangement can prevent engine lubricating oil from invading in consent 13.
In addition, there is the gag mounting flange 11 stretching out a portion 15 separate with cylinder head 2 and formed.Therefore, and stretch out a portion 15 and compare with the situation that cylinder head 2 is integrally formed, the present invention has to be convenient to process and the advantage of process cylinder head 2.
Multiple consent 13 can be provided with in this motor, and described in stretch out a portion be set up number correspond to described consent 13 be set up number; And stretch out a portion 15 described in multiple to be integrally formed with an only described gag mounting flange 11, only a gag mounting flange 11 is arranged integratedly with a multiple portion 15 of stretching out.Therefore, multiple gag 9 is pre-installed to gag flange connector 11 by secondary production line together, subsequently, the assembling parts that these are mounted together by main line is in cylinder head 2.Thus, another advantage of the present invention is, as above this pre-assembled by implementing, and can realize very effective production method.
As shown in Fig. 1, Fig. 8, Fig. 9, Figure 11 and Figure 12, multiple consent 13 in this motor, can be provided with, described in stretch out a portion 15 be set up number correspond to described consent 13 be set up number; And a kind of delivery pipe 18 is provided; Described delivery pipe passes through from multiple side, side of stretching out a portion 15, and is installed to multiple at least two of stretching out in a portion 15 respectively by fixing device 32.By delivery pipe 18, a multiple portion 15 of stretching out is interconnected thus, thus prevents stretching out a portion 15 and rock, and finally prevent the coil portion 9C being fixed to the gag 9 that each stretches out a portion from rocking, thus can stop the function deterioration of coil portion 9C.
As shown in Fig. 5 (a) He Fig. 5 (b), according to the present invention, stretch out a portion 15 described in multiple and be integrally formed with an only described gag mounting flange 11, namely stretch out a portion 15 and arrange integratedly with single mounting flange 11.Pre-assembled operation can be performed thus, described pre-assembled operation comprises: on secondary Assembly line, multiple gag 9 is installed to gag mounting flange 11 together, the assembling parts these be mounted together in main line subsequently, in cylinder head 12, can realize very effective production method thus.
As shown in Figure 8, according to the present invention, multiple nozzle 25 is installed to delivery pipe 18; And as shown in Fig. 4, Fig. 5 (a) He Fig. 5 (b), each nozzle 25 is inserted in multiple nozzle patchhole 11a, and described multiple nozzle patchhole is arranged on single gag mounting flange 11.Therefore, except gag 9, delivery pipe 18 and multiple nozzle 25 also all together be installed to single gag mounting flange 11, the assembling parts these be mounted together in main line is afterwards to cylinder head 2.Due to this operation of assembling in advance can be performed, so very effective manufacture method can be realized.
As shown in Figure 3, according to the present invention, gag mounting flange 11 is installed to cap surface 2a by seal arrangement 17, and gag 9 is configured to form the lid for elongated hole 15A.This makes the consent 13 of accommodating gag 9 and elongated hole 15A keep the state of tight seal, thus has the advantage not only preventing engine lubricating oil from invading the intrusion such as the impurity that also prevents such as rainwater, refuse, dust.In the case, as described in seal arrangement be pad, preferably the pad that easily obtains is used as seal arrangement 17.
As shown in Figures 1 to 4, according to the present invention, stretching out a portion 15 is arranged in air-guiding aisle 42, the engine cooling wind of air-guiding aisle 42 for being sent by cooling fan of engine 41, making to conduct to the heat diffusion of the coil portion 9C of gag 9 in engine cooling wind via stretching out a portion 15, thus suppressing coil portion 9C overheated.
As only for shown in Fig. 1 and Fig. 2 of illustrating, according to the present invention, air-guiding aisle 42 has left wind-guiding guide portion and right wind-guiding guide portion, and above-mentioned left wind-guiding guide portion and right wind-guiding guide portion are made up of intake manifold 8 and top cover 5 respectively.Air-guiding aisle 42 can be formed by existing intake manifold 8 and top cover 5 thus when not increasing any new parts.
As Fig. 1 exemplarily shown in, according to the present invention, intake manifold 8 has supervisor 7, and throttle valve body 43 is installed to the front end of described supervisor.This throttle valve body 43 and top cover 5 form the left wind-guiding guide portion of the air input part 42A of air-guiding aisle 42 and right wind-guiding guide portion.Therefore, without the need to increasing any new parts, throttle valve body 43 and top cover 5 just can form the air input part 42A of air-guiding aisle 42.
As depicted in figs. 1 and 2, according to the present invention, wind deflector 45 is arranged on the upside of air-guiding aisle 42, and wind deflector 45 covers air-guiding aisle 42 from top simultaneously.Electronic unit holding part 46 is arranged on the upper surface of wind deflector 45.Due to this arrangement, wind deflector 45 stops on engine cooling wind direction and spills, thus prevent engine cooling distinguished and admirable go out air-guiding aisle 42.
In addition, because electronic unit holding part 46 is arranged on the upper surface of wind deflector 45, so this wind deflector 45 also can be used as the parts settling electronic unit holding part 46.
As depicted in figs. 1 and 2, according to the present invention, wire harness 48 is supported by the upper surface of wind deflector 45.Therefore wind deflector 45 also can be used as the supporting portion of wire harness 48.
As depicted in figs. 1 and 2, according to the present invention, wind deflector 45 is installed to intake manifold 8, thus makes the temperature of wind deflector 45 can maintain relatively low temperature.This can prevent from being placed in electronic unit in electronic unit holding part 46 and wire harness 48 overheated.
According to the present invention, the position that the engine cooling wind that the venting channels 47 extending to intake manifold 8 side from top cover 5 side is arranged on blowout faces.This makes to be imported into heat diffusion entrained by the gas of intake manifold 8 side in engine cooling wind, thus prevents air inlet charging efficiency from declining.
Accompanying drawing explanation
Fig. 1 is the planimetric map of spark ignition engines.
Fig. 2 is the front view that top cover and periphery thereof are shown.
Fig. 3 is the sectional view of the necessary part of the structure illustrated for installing gag.
Fig. 4 is the sectional view of the necessary part of the structure that fuel supply system is shown.
Fig. 5 (a) and Fig. 5 (b) shows gag mounting flange.Fig. 5 (a) is planimetric map, and Fig. 5 (b) is side view.
Fig. 6 (a) is the worm's eye view of gag mounting flange, the worm's eye view that Fig. 6 (b) is pad.
The worm's eye view that Fig. 7 (a) is delivery pipe; The sectional view of Fig. 7 (b) for cutting open along the line B-B in Fig. 7 (a); The sectional view of Fig. 7 (c) for cutting open along the line C-C in Fig. 7 (a); The sectional view of Fig. 7 (d) for cutting open along the line D-D in Fig. 7 (a); The view of Fig. 7 (e) for observing along the direction that the arrow E in Fig. 7 (a) represents; Fig. 7 (f) is the planimetric map of nozzle stopper; Fig. 7 (g) is the side view of nozzle stopper; The sectional view of Fig. 7 (h) for cutting open along the line H-H in Fig. 7 (g).
Fig. 8 is the side view of the air inlet side that top cover and periphery thereof are shown.
Fig. 9 is the rear view that top cover and periphery thereof are shown.
Figure 10 is the side view of the exhaust side that top cover and periphery thereof are shown.
Stereogram when Figure 11 is oblique observation top cover and periphery thereof from top.
Figure 12 is the stereogram of whole spark ignition engines.
The explanation of reference character
2 cylinder head
2a cap surface
5 top covers
7 supervisors
8 intake manifold
9 gags integrated with spark coil
9C coil portion
10 igniter plugs
11 gag mounting flange holes
11a nozzle patchhole
12 plug mounting holes
13 consents
15 stretch out a portion
15A elongated hole
17 seal arrangements
18 delivery pipes
25 nozzles
32 fixing devices
41 cooling fan of engine
42 air-guiding aisles
42A air input part
43 throttle valve bodys
45 wind deflectors
46 electronic unit holding parts
47 venting channels
48 wire harness
Embodiment
Hereinafter, with reference to accompanying drawing, situation when being applied to vertical type multi-cylinder (four cylinders) diesel engine according to the embodiment of spark ignition engines of the present invention is described.
Fig. 1 and Figure 12 respectively illustrates the vertical type four-cylinder diesel engine alternately using liquid fuel and gaseous fuel.
First, the width direction of cylinder block 1 or cylinder head 2 is regarded as transverse direction, the direction that crankshaft 3 runs through is regarded as fore-and-aft direction.In the longitudinal direction, the side at flywheel 4 place is regarded as rear side, opposition side is regarded as front side.In the horizontal, the side at gas exhaust manifold 14 place is regarded as left side, the opposition side at intake manifold 8 place is regarded as right side.Cylinder block 1 has top, and cylinder head 2 is assembled into the top of cylinder block 1.This cylinder head 2 has top, and top cover 5 is assembled into the top of cylinder head 2.The cooling fan of engine 41 driven by driving belt 6 is arranged on the front portion of cylinder block 1, flywheel 4 is arranged on the rear portion of cylinder block 1.
As shown in Figure 1, Figure 2 and shown in Fig. 8 to Figure 12, intake manifold 8 is arranged on the right side of cylinder head 2, and gas exhaust manifold 14 is arranged on the left side of cylinder head 2.Top cover 5 is positioned on the cap surface 2a of cylinder head 2, the position in deflection left side, and this cap surface is the smooth upper surface of cylinder head 2.Ignition mechanism (A) is arranged on the right side of cap surface 2a.Ignition mechanism (A) comprising: igniter plug 10, and it is installed to plug mounting hole 12 with thread fiting mode; Gag 9, the pattern that itself and spark coil are integrated, is arranged for each igniter plug 10; And gag mounting flange 11, it is for supporting four gags 9.
As shown in Figure 3, device (A) comprising: consent 13, is provided with screwed plug mounting hole 12 at penetralia, and is formed in cylinder head 2; Igniter plug 10, engages with plug mounting hole 12 with thread fiting mode; And gag 9, when it is inserted in consent 13, this gag strikes up partnership with the spark coil being installed to igniter plug 10.Consent 13 is configured to inclined hole, and the position outside the top cover 5 in cylinder head 2 is more then the closer to intake manifold 7 side.Cover surface (example of cap surface) 2a to open wide to arrange consent 13, and gag mounting flange 11 is installed to this via pad (example of seal arrangement) 17 and covers surface.A portion 15 of stretching out with elongated hole 15A is integrally formed with gag mounting flange 11, and elongated hole 15A is communicated with consent 13.Gag 9 is inserted into consent 13 from elongated hole 15A, and gag 9 has coil portion (spark coil) 9c, and what this coil portion was secured to gag mounting flange 11 by bolt 16 (example of fixing device) stretches out a portion 15.In addition, reference character 2b represents smooth lid lower surface, and cylinder head 2 is connected to the upper surface of cylinder block 1 (not shown) by lid lower surface.
The gag 9 of pattern integrated with spark coil is formed an one-piece parts, and this one-piece parts comprises holding part 9A, closure 9B and coil portion 9C; Holding part 9A is externally fitted on igniter plug 10, and has the filling chamber 9a that can pass from holding part and keep igniter plug 10 in its lower end.Electric conductor is placed in holding part 9A, and realizes from coil portion 9C conducting to igniter plug 10.When the function of closure 9B to be stretched out in a portion 15 to install for being inserted into when it, this closure 9B is seamless, and unoccupied place covers and closes the upper end of stretching out a portion 15, thus stops in the foreign matter intrusion elongated hole 15A such as dirt.Coil portion 9C comprises link 9c and flange 9k.Flange 9k is fastened to the upper surface (not marking with reference character) from stretching out the outstanding installation arm 15a in a portion 15 by bolt 16, thus is fixed to by gag 9 and stretches out a portion 15, is namely fixed to gag mounting flange 11.In addition, in figure 3, reference character 19,20,21 and 22 represent outlet valve respectively, the relief opening be formed in cylinder head 2, exhaust side rocking arm and exhaust side push rod.
As shown in Fig. 3, Fig. 4, Fig. 5 (a) He Fig. 5 (b) and Fig. 6 (a), gag mounting flange 11 comprises: single lip part 11A, is fastened by bolts the upper surface 2a contacted with lip part 11A face of cylinder head 2 by pad 7; Stretch out a portion 15, swell from lip part 11A four positions and formed; Nozzle patchhole 11a, is arranged on four positions, for installing nozzle 25; Nut portions 11b, at four position protuberances, for carrying out fastening delivery pipe 18 by bolt; And mounting hole 11c, nine positions, for being undertaken fastening by bolt, all mounting hole 11c and other parts are integrally formed.More specifically, cylinder head 2 is provided with consent 13 at four positions (example of multichannel supply).Stretch out a portion 15 and be arranged on four positions corresponding with the consent 13 being positioned at four positions, but also be integrally formed with gag mounting flange 11.Although not shown, but gag mounting flange 11 can be constructed as follows: for each cylinder forms four gag mounting flanges independently, and these four gag mounting flanges 11 (each gag mounting flange 11 is independently) are installed to cylinder head 2 respectively.In addition, seal arrangement 17 can be liquid pad (attached sealing) or is different from any device of liquid gasket.
As shown in Fig. 6 (b), pad 17 is formed to comprise: hole 17a, is arranged on four positions, is respectively used to elongated hole; Another some holes 17c, four positions, is respectively used to insert nozzle; And another some holes 17c, nine positions, be respectively used to bolt.Each elongated hole hole 17a and nozzle insertion hole 17b is constructed to make its peripheral portion have the sealability strengthened by the steel plate materials of such as SPCC.
As shown in Fig. 4 and Fig. 1, Fig. 2, Fig. 8 and Fig. 9, cylinder head 2 is formed with suction port 23 and spray-hole 24, and this spray-hole is tilted to be communicated with suction port 23.Gag mounting flange 11 has nozzle patchhole 11a; Nozzle patchhole 11a is used for, when bottom 25b (i.e. the front end of nozzle 25) tilts also in the face of spray-hole 24 along spray-hole 24, bottom 25b being inserted airtightly this nozzle patchhole.Four nozzles 25 have top 25a separately, and described top forms base end part, when top 25a extends along the longitudinal direction and transversely settles, to be inserted by top 25a in delivery pipe 18 and to be supported by delivery pipe 18.Delivery pipe 18 forms following structure: the nut portions 11b being fixed to protuberance by fixing device 32, nut portions 11b is arranged on totally four positions.Three in the nut portions 11b of four protuberances respectively with stretch out a portion 15 and be integrally formed.In addition, reference character 26c represents the link of nozzle 25.
As shown in Figure 7, delivery pipe 18 is the component comprising single extra heavy pipe portion 18A and ridge 18B, and described ridge is given prominence to from extra heavy pipe portion 18A four positions.The nut portions 11b that the bolton that delivery pipe 18 is through mounting hole 26 is swelled to each, described mounting hole is formed in each ridge 18B.As shown in Fig. 7 (a) to Fig. 7 (e), each ridge 18B is formed with nozzle mounting hole 27, bolt-inserting hole 26 and screw section 28, wherein nozzle mounting hole 27 is communicated with the primary flow path 18a of pipe portion 18A, and screw section 28 is for carrying out fastening nozzle stopper 29 by bolt.More specifically, delivery pipe 18 is set to, and inserts four nozzles 25 to support this four nozzles, and passes through each nut portions 11b stretching out a portion 15, be installed to the nut portions 11b of three protuberances and another protuberance by fixing device 32.Fixing device 32 is bolt.Therefore, the Elementary Function of delivery pipe 18 is distributed by fuel and is fed to each nozzle 25, separately has a function to be support each nozzle 25, also have a function to be that a portion 15 is stretched out in reinforcement three.Therefore, rational design is achieved by making a component have several functions.
As shown in Fig. 7 (f), Fig. 7 (g) and Fig. 7 (h), nozzle stopper 29 comprises compared with long portion 29A and the holding part 29B being positioned at four positions, and is made up of metallic sheet material.Nozzle stopper 29 departs from delivery pipe 18 for preventing each nozzle 25.Comparatively long portion 29A is formed with restraint hole 30 four positions, described restraint hole is used for comparatively long portion to be fixed to each screw section 28 by screw, each holding part 29B is provided with breach groove 31, and described breach groove is used for each nozzle 25 to press insert and be assembled in breach groove.More specifically, as shown in Figure 4, when holding part 29B be inserted into make slide breach groove 31 be located in the top 25a of nozzle 25, by restraint hole 30 will be fixed to compared with long portion 29A screw thread each protuberance nut portions 28.Subsequently, bottom 25b is inserted in a sealing fashion in nozzle patchhole 11a, and top 25a is also inserted in mounting hole 27 in a sealing fashion.Like this, four nozzles 25 can by gag mounting flange 11 firmly and reliably support.
It should be pointed out that in Fig. 7 (g), reference character 31a represents the groove for stoping rotation, and this groove and the prevention of nozzle 25 rotate jut 25d and engage to position link 25c.
In the assembling operation of reality, four nozzles 25, four gags 9, delivery pipe 18 and nozzle stoppers 29 are pre-assembled gag mounting flange 11 to form single-piece.If this gag mounting flange 11 being assembled into single-piece (ASSY) is in advance installed to cylinder head 2, then efficiently can assemble ignition mechanism (A).First, the top 25a of four nozzles 25 is inserted in corresponding nozzle mounting hole 27.Subsequently, nozzle stopper 29 is inserted in the 25a of each top, and by fixing bolt, nozzle stopper 29 is engaged with each screw section 28.Afterwards, by the bolt as fixing device 32, four ridge 18B are fastened to the nut portions 11b of protuberance, because the bottom 25b of nozzle 25 is inserted into corresponding nozzle insertion part 11a four positions, so the delivery pipe 18 being provided with four nozzles 25 is kept.
Subsequently, the holding part 9A of gag 9 is inserted the elongated hole 15A being arranged in four positions, then in the mode of screw-thread fit, the flange 9K of gag 9 is installed to installation arm 15a by bolt 16, makes nozzle 25, delivery pipe 18 and gag 9 and gag mounting flange 11 form one thus.Such as, in factory, this process can realize the effective operation comprising content below:
Secondary production line to be implemented by various assembling parts such as such as gags 9 to gag mounting flange 11 to form the pre-assembled step of single piece body; And
The cylinder head 2 of the engine main body transmitted in main line will be assembled into by pre-assembled like this single piece body.
As shown in Figures 1 to 4, stretch out a portion 15, nozzle 25 and delivery pipe 18 and be all arranged in air-guiding aisle 42, this air-guiding aisle is used for the engine cooling wind sent by cooling fan of engine 41.
Air-guiding aisle 42 has the left wind-guiding guide portion and right wind-guiding guide portion that are made up of intake manifold 8 and top cover 5.
As depicted in figs. 1 and 2, intake manifold 8 has supervisor 7, and throttle valve body 43 is installed to the front end of described supervisor.This throttle valve body 43 and top cover 5 form the left and right wind-guiding guide portion of the air input part 42A of air-guiding aisle 42.The throttle valve (not shown) be located in throttle valve body 43 is driven by the electric actuator 49 be arranged in addition in throttle valve body 43.
As shown in Figure 1, gas mixer 44 is installed to the front end of throttle valve body 43.Vaporizer 52 is installed to the horizontal side of gas mixer 44.
As depicted in figs. 1 and 2, wind deflector 45 is arranged on the upside of air-guiding aisle 42, covers air-guiding aisle 42 from top simultaneously.Electronic unit holding part 46 is arranged on the upper surface of wind deflector 45.The electronic units such as the accommodating such as safety fuse cutout of electronic unit holding part 46.
Wire harness 48 is supported by the upper surface of wind deflector 45, and is electrically connected to coil portion 9C, the electric actuator 49 of throttle valve body 43, engine rotation number of times sensor (not shown), crank angle sensor (not shown), cylinder identification sensor (not shown), the electronic unit such as suction pressure and temperature transducer 51 of ECU (not shown) and such as gag 9.Wire harness 48 is fixed to wind deflector 45 by workpiece such as fixtures." ECU " is the abbreviation of " control unit of engine ".
Wind deflector 45 is installed to intake manifold 8.
As shown in Figure 2, the position that the engine cooling wind that the venting channels 47 extending to intake manifold 8 side from top cover 5 side is arranged on blowout faces.Venting channels 47 makes the Pcv valve 50 be arranged in top cover 5 be communicated with intake manifold 8." PCV " is the abbreviation of " positive crankcase ventilation (PCV) ".
As mentioned above, spark type ignition plug according to the present invention provides following function and effect.
Gag 9 is constructed to the position at lateral run-out top cover 5, is inserted in the consent 13 of formation in cylinder head 2.This structure eliminates the possibility of the consent 13 and engine lubricating oil reducing in top cover 5 splashing bleeds.Gag 9 has holding part 9A, and the top of described holding part is placed in stretches out in the elongated hole 15A in a portion 15, and the upper end partes tegmentalis 9B of elongated hole 15A covers.And gag mounting flange 11 is installed to by pad 17 and covers surperficial 2a, thereby eliminate the possibility that the foreign matter such as dirt, dust invades consent 13 and elongated hole 15A, thus good spark ignition function can be kept.
Gag 9 has the coil portion 9C forming its top; Described coil portion is constructed so that it can be fastened by bolts the upper end portion (installing arm 15a) of stretching out a portion 15 by flange 9K.Therefore, gag 9 is longer at vertical direction.In addition, because heavier coil portion 9C is arranged on gag 9 top, so described gag tends to keep balance on top, gag 9 can obtain reliably and stably supports and can not rock.In addition, stretching out a portion 15 by employing makes coil portion 9C separate on top and cylinder head 2, so prevent coil portion 9C overheated.In addition, consent 13 and elongated hole 15A are inclined to separately and make top more up, it is in the horizontal more away from top cover 5.The advantage of this arrangement is that the heat of top cover 5 passes to coil portion 9C hardly.
Comprise the gag mounting flange 11 that stretches out a portion 15 to manufacture as individual components, and the installation conditions be constructed to according to top cover 5 and be installed to the upper surface 2a of cylinder head 2.Therefore, situation about being integrally formed with gag mounting flange 11 and cylinder head 2 is compared, and forms (processing in other words) cylinder head 2 and becomes easy.And significantly give prominence to owing to stretching out a portion 15, institute is so that process cylinder head 2 in the fabrication process.In addition, the processibility covering surperficial 2a is so good, so be processed as single plat surface just can meet the demands covering surperficial 2a.
By with the delivery pipe 18 being arranged on the side, top of stretching out a portion 15, be fastened on three positions with bolt and stretch out a portion 15 from lip part 11A is significantly outstanding, integrality can be realized thus and strengthen, thus suppress to stretch out rocking of a portion 15.This can extend the working life of gag mounting flange 11 or gag 9.
Claims (10)
1. a spark ignition engines, comprising: consent (13), is provided with plug mounting hole (12) in inner side, and is formed in cylinder head (2) at it; Igniter plug (10), engages with described plug mounting hole (12) with thread fiting mode; And the gag (9) of pattern integrated with spark coil, time in described gag (9) is inserted into described consent (13), described gag (9) is installed to described igniter plug (10), wherein:
Described consent (13) is arranged on the position in top cover (5) outside in described cylinder head (2); The cap surface (2a) of described cylinder head (2) opens wide to arrange described consent (13), and has gag mounting flange (11) to be installed to described cap surface; And described gag mounting flange (11) is formed stretches out a portion (15), described in stretch out a portion there is the elongated hole (15A) be communicated with described consent (13); When described gag (9) is inserted into described consent (13) from described elongated hole (15A), described in the coil portion (9C) of described gag (9) is fixed to, stretch out a portion (15);
Wherein:
Described consent (13) is provided with multiple, described in stretch out a portion (15) be set up number correspond to described consent (13) be set up number;
Be provided with the delivery pipe (18) for fuel being assigned to nozzle (25); Described nozzle be set up number correspond to described consent (13) be set up number; Described delivery pipe (18) passes through from the side of stretching out a portion (15) described in multiple is other, and is installed to described at least two respectively by fixing device (32) and stretches out a portion (15);
Wherein:
A described portion (15) of stretching out is arranged in the air-guiding aisle (42) of the engine cooling wind sent by cooling fan of engine (41); And
Described air-guiding aisle (42) has left wind-guiding guide portion and right wind-guiding guide portion, and described left wind-guiding guide portion and right wind-guiding guide portion are made up of intake manifold (8) and described top cover (5) respectively.
2. spark ignition engines as claimed in claim 1, wherein:
Stretch out a portion (15) described in multiple to be integrally formed with an only described gag mounting flange (11).
3. spark ignition engines as claimed in claim 2, wherein:
Multiple described nozzle (25) is installed to described delivery pipe (18), and nozzle described in each (25) is inserted in multiple nozzle patchhole (11a); Described multiple nozzle patchhole (11a) is arranged in single described gag mounting flange (11).
4. spark ignition engines as claimed in claim 1, wherein:
Described intake manifold (8) has supervisor (7), throttle valve body (43) is installed to the front end of described supervisor (7), and described throttle valve body (43) and described top cover (5) form the left wind-guiding guide portion of the air input part (42A) of described air-guiding aisle (42) and right wind-guiding guide portion.
5. spark ignition engines as claimed in claim 1, wherein:
Wind deflector (45) is arranged on the upside of described air-guiding aisle (42), described wind deflector (45) covers described air-guiding aisle (42) from top simultaneously, and electronic unit holding part (46) is arranged on the upper surface of described wind deflector (45).
6. spark ignition engines as claimed in claim 5, wherein:
Wire harness (48) is supported by the upper surface of described wind deflector (45).
7. spark ignition engines as claimed in claim 5, wherein:
Described wind deflector (45) is installed to described intake manifold (8).
8. spark ignition engines as claimed in claim 1, wherein:
The position that the engine cooling wind that the venting channels (47) extending to described intake manifold (8) side from described top cover (5) side is arranged on blowout faces.
9. spark ignition engines as claimed in claim 1, wherein:
Described gag mounting flange (11) is installed to described cap surface (2a) by seal arrangement (17), and described gag (9) is configured to form the lid for described elongated hole (15A).
10. spark ignition engines as claimed in claim 9, wherein:
Described seal arrangement (17) is pad.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010038925A JP5548478B2 (en) | 2009-03-31 | 2010-02-24 | Spark ignition engine |
| JP2010-038925 | 2010-02-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102162418A CN102162418A (en) | 2011-08-24 |
| CN102162418B true CN102162418B (en) | 2015-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010288304.4A Active CN102162418B (en) | 2010-02-24 | 2010-09-19 | Spark-ignition engine |
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| CN (1) | CN102162418B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578161A (en) * | 2019-01-03 | 2019-04-05 | 广西玉柴机器股份有限公司 | A kind of Ignition Natural Gas Engine spark plug mounting structure |
| CN114566871A (en) * | 2021-12-06 | 2022-05-31 | 重庆长安汽车股份有限公司 | Spark plug protective cover structure of four-cylinder in-line engine |
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| CN1411535A (en) * | 1999-10-18 | 2003-04-16 | 轨道发动机公司(澳大利亚)有限公司 | Direct injection of fuels in internal combustion engine |
| CN1509372A (en) * | 2001-05-17 | 2004-06-30 | 本田技研工业株式会社 | Top-set single-cam axial-cam engine |
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| JP3096956B2 (en) * | 1995-09-12 | 2000-10-10 | 株式会社クボタ | Engine breather pipe |
| JP2004019451A (en) * | 2002-06-12 | 2004-01-22 | Denso Corp | Ignition coil gathering device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1411535A (en) * | 1999-10-18 | 2003-04-16 | 轨道发动机公司(澳大利亚)有限公司 | Direct injection of fuels in internal combustion engine |
| CN1509372A (en) * | 2001-05-17 | 2004-06-30 | 本田技研工业株式会社 | Top-set single-cam axial-cam engine |
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| CN102162418A (en) | 2011-08-24 |
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