CN102162418A - Spark-ignition engine - Google Patents
Spark-ignition engine Download PDFInfo
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- CN102162418A CN102162418A CN2010102883044A CN201010288304A CN102162418A CN 102162418 A CN102162418 A CN 102162418A CN 2010102883044 A CN2010102883044 A CN 2010102883044A CN 201010288304 A CN201010288304 A CN 201010288304A CN 102162418 A CN102162418 A CN 102162418A
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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 that comprises following parts: consent at its most inboard plug mounting hole that is provided with, and is formed in the cylinder head; Igniter plug engages with the plug mounting hole with thread fiting mode; And with the gag that spark coil is integrally formed, that is to say that when described gag is inserted in the consent gag is mounted to igniter plug (direct ignition gag).
Background technique
Such motor, promptly adopt with the gag of the integrated pattern of spark coil and (and each igniter plug of each cylinder distributed corresponding spark coil, and control distribution with timing corresponding to cylinder with the electronics electrical distribution system) spark ignition engines, have very long working life, and can reduce the electric wave noise that produces by the high voltage electric energy distributor.And this spark ignition engines has level of freedom on ignition timing, and sees more favourablely than electrical distribution system on optimum igniting timing controlled point, thereby becomes main flow.
For example, as shown in Figure 2, that patent documentation 1 discloses, have following structure with the gag of the integrated pattern of spark coil: plug is inserted into the consent that is arranged in the depths, is used as to be arranged on the igniter plug between the opposed a pair of suction valve and outlet valve mutually.Spark coil be positioned in by making the cylinder top cover upper surface to installation that lower recess forms with recess on, and be fixed on this place.
The protection cylinder component that forms consent is assembled in the mounting hole of cylinder head, and its upper end extends through the cylinder top cover.Therefore, gag can be taked to fall the mode that enters the protection cylinder component from top cover top and installs.
The prior art document
Patent documentation
Patent documentation 1: Japanese kokai publication hei 5-099112 patent gazette.
Summary of the invention
The problem to be solved in the present invention
The protection cylinder component is pressed in the consent of cylinder top cover in the inboard of cylinder top cover, causes engine lubricating oil might invade the problem of consent thus.
The purpose of this invention is to provide a kind of spark ignition engines, it does not allow engine lubricating oil to invade, and can carry out stable spark ignition, thereby adopts the structure of the gag of utilization and the integrated pattern of spark coil.
The means that are used to deal with problems
As shown in Figure 3, the present invention as claimed in claim 1 is a kind of spark ignition engines, and it comprises: consent 13, and fill in mounting hole 12 its most inboard being provided with, and be formed in the cylinder head 2; Igniter plug engages with plug mounting hole 12 with thread fiting mode; And with the gag 9 of the integrated pattern of spark coil, when described gag was inserted in the consent 13, described gag was installed to igniter plug 10.
As shown in Figure 3, in this motor, consent 13 is set at the position in top cover 5 outsides on the cylinder head 2; The cap surface 2a of cylinder head 2 opens wide with formation consent 13, and has gag mounting flange 11 to be installed to cap surface; And flange 11 is formed with the portion 15 of stretching out, and a described portion of stretching out has the elongated hole 15A that is communicated with consent 13.When gag 9 when elongated hole 15A is inserted into consent 13, the coil portion 9C of gag 9 is fixed to the portion 15 of stretching out.
The invention effect
As shown in Figure 3, the present invention according to claim 1, consent 13 is set at the position in top cover 5 outsides on the cylinder head 2.This arrangement can prevent in the engine lubricating oil intrusion consent 13.
In addition, have the gag mounting flange 11 that stretches out a portion 15 and separate formation with cylinder head 2.Therefore, the situation integrally formed with stretching out a portion 15 and cylinder head 2 compared, and the present invention has the advantage of being convenient to process and handle cylinder head 2.
The present invention according to claim 2, only a gag mounting flange 11 is provided with integratedly with a plurality of portion 15 of stretching out.Therefore, on secondary production line, a plurality of gags 9 are installed to gag flange connector 11 together in advance, subsequently, in the component-assembled that on the main line these is mounted together on cylinder head 2.Thus, another advantage of the present invention is, by implementing aforesaid this pre-assembling, can realize very effective production method.
As Fig. 1, Fig. 8, Fig. 9, Figure 11 and shown in Figure 12, according to claim 3ly the invention provides a kind of delivery pipe 18; Described delivery pipe is from a plurality of side bypass mistakes of stretching out a portion 15, and is installed to a plurality of at least two of stretching out in the portion 15 by fixing device 32 respectively.By delivery pipe 18 a plurality of portion 15 of stretching out are interconnected thus, rock, and prevent that finally the coil portion 9C that is fixed to each gag that stretches out a portion 9 from rocking, thereby can stop the function deterioration of coil portion 9C thereby prevent to stretch out a portion 15.
Shown in Fig. 5 (a) and Fig. 5 (b), the present invention according to claim 4 stretches out a portion 15 and is provided with integratedly with single mounting flange 11.Can carry out pre-assembling operation thus, described pre-assembling operation comprises: on secondary Assembly line a plurality of gags 9 are installed to gag mounting flange 11 together, subsequently in the component-assembled that on the main line these is mounted together on cylinder head 12, can realize very effective production method thus.
As shown in Figure 8, according to the present invention as claimed in claim 5, a plurality of nozzles 25 are installed to delivery pipe 18; And shown in Fig. 4, Fig. 5 (a) and Fig. 5 (b), each nozzle 25 is inserted among a plurality of nozzle patchhole 11a, and described a plurality of nozzle patchholes are set on the single gag mounting flange 11.Therefore, except that gag 9, delivery pipe 18 and a plurality of nozzle 25 also all are installed to single gag mounting flange 11 together, and the component-assembled that on main line these is mounted together is to cylinder head 2 afterwards.Owing to can carry out this operation of assembling in advance, so can realize very effective manufacture method.
As shown in Figure 3, according to the present invention as claimed in claim 6, gag mounting flange 11 is installed to cap surface 2a by seal arrangement 17, and gag 9 is configured to form the lid that is used for elongated hole 15A.This makes the consent 13 of ccontaining gag 9 and elongated hole 15A keep the state of tight seal, thereby has and prevent not only that engine lubricating oil from invading and also prevent the advantage of invading such as impurity such as rainwater, refuse, dusts.In the case, situation as claimed in claim 7 is such, and preferably the pad that will obtain easily is as seal arrangement 17.
As shown in Figures 1 to 4, the present invention according to claim 8, stretching out a portion 15 is set in the air-guiding aisle 42, air-guiding aisle 42 is used for the engine cooling wind that launched machine cooling fan 41 is sent, make via the heat diffusion of stretching out the coil portion 9C that a portion 15 conducts to gag 9 in engine cooling wind, thereby it is overheated to suppress coil portion 9C.
Illustrated in figures 1 and 2 as what only be used for giving an example, the present invention according to claim 9, 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 of intake manifold 8 and top cover 5 respectively.Can under the situation that does not increase any new parts, form air-guiding aisle 42 thus by existing intake manifold 8 and top cover 5.
As Fig. 1 exemplarily shown in, the present invention according to claim 10, intake manifold 8 has is responsible for 7, throttle valve body 43 is installed to the described person in charge's front end.This throttle valve body 43 and top cover 5 form left wind-guiding guide portion and the right wind-guiding guide portion of the air input part 42A of air-guiding aisle 42.Therefore, need not to increase any new parts, throttle valve body 43 and top cover 5 just can constitute the air input part 42A of air-guiding aisle 42.
As depicted in figs. 1 and 2, the present invention according to claim 11, wind deflector 45 is set at the upside of air-guiding aisle 42, and wind deflector 45 covers air-guiding aisle 42 from the top simultaneously.Electronic unit holding part 46 is set on the upper surface of wind deflector 45.Because this arrangement, wind deflector 45 stops on the engine cooling wind directions and spills, thereby preventing that engine cooling is distinguished and admirable goes out air-guiding aisle 42.
In addition, owing to electronic unit holding part 46 is set on the upper surface of wind deflector 45, so this wind deflector 45 also can be used as the parts of settling electronic unit holding part 46.
As depicted in figs. 1 and 2, the present invention according to claim 12, 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, the present invention according to claim 13, wind deflector 45 is installed to intake manifold 8, thereby makes the temperature of wind deflector 45 can maintain relatively low temperature.This can prevent that the electronic unit and the wire harness 48 that are placed in the electronic unit holding part 46 are overheated.
The present invention according to claim 14, the venting channels 47 that extends to intake manifold 8 sides from top cover 5 sides is set at the position that the engine cooling wind that blows out faces.This makes the entrained heat diffusion of the gas be imported into intake manifold 8 sides in engine cooling wind, thereby prevents that the air inlet charging efficiency from descending.
Description of drawings
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 that the necessary part of the structure that is used to install gag is shown.
Fig. 4 is the necessary sectional view partly that the structure of fuel supply system is shown.
Fig. 5 (a) and Fig. 5 (b) show the gag mounting flange.Fig. 5 (a) is a planimetric map, and Fig. 5 (b) is a side view.
Fig. 6 (a) is the worm's eye view of gag mounting flange, and Fig. 6 (b) is the worm's eye view of pad.
Fig. 7 (a) is the worm's eye view of delivery pipe; The sectional view of Fig. 7 (b) for cutting open along the line B-B among Fig. 7 (a); The sectional view of Fig. 7 (c) for cutting open along the line C-C among Fig. 7 (a); The sectional view of Fig. 7 (d) for cutting open along the line D-D among Fig. 7 (a); The direction observed view of Fig. 7 (e) for representing along the arrow E among Fig. 7 (a); 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 among Fig. 7 (g).
Fig. 8 is the side view that the air inlet side of top cover and periphery thereof is shown.
Fig. 9 is the rear view that top cover and periphery thereof are shown.
Figure 10 is the side view that the exhaust side of top cover and periphery thereof is shown.
Figure 11 is the stereogram when oblique observation top cover and periphery thereof from the top.
Figure 12 is the stereogram of whole spark ignition engines.
The explanation of reference character
2 cylinder head
The 2a cap surface
5 top covers
7 are responsible for
8 intake manifold
9 with the incorporate gag of spark coil
The 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
The 15A elongated hole
17 seal arrangements
18 delivery pipes
25 nozzles
32 fixing devices
41 cooling fan of engine
42 air-guiding aisles
The 42A air input part
43 throttle valve bodys
45 wind deflectors
46 electronic unit holding parts
47 venting channels
48 wire harness
Embodiment
Situation when hereinafter, being applied to vertical type multi-cylinder (four cylinders) diesel engine according to the embodiment of spark ignition engines of the present invention with reference to description of drawings.
Fig. 1 and Figure 12 show the vertical type four-cylinder diesel engine that alternately uses liquid fuel and gaseous fuel respectively.
At first, the width direction of cylinder block 1 or cylinder head 2 is regarded as laterally, regarded the direction that crankshaft 3 runs through as fore-and-aft direction.On fore-and-aft direction, rear side is made in a side-looking at flywheel 4 places, regard opposition side as front side.In the horizontal, the left side is done in a side-looking at gas exhaust manifold 14 places, regarded the opposition side at intake manifold 8 places 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.To be set at the front portion of cylinder block 1 by the cooling fan of engine 41 that driving belt 6 drives, flywheel 4 is set at the rear portion of cylinder block 1.
Extremely shown in Figure 12 as Fig. 1, Fig. 2 and Fig. 8, intake manifold 8 is set at the right side of cylinder head 2, and gas exhaust manifold 14 is arranged on the left side of cylinder head 2.The cap surface 2a that top cover 5 is positioned in cylinder head 2 goes up, the position in deflection left side, and this cap surface is the smooth upper surface of cylinder head 2.Ignition mechanism (A) is set at 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, itself and the integrated pattern of spark coil are set for each igniter plug 10; And gag mounting flange 11, it is used to support 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 the cylinder head 2; Igniter plug 10 engages with plug mounting hole 12 with thread fiting mode; And gag 9, when it was inserted in the consent 13, this gag struck up partnership with the spark coil of being installed to igniter plug 10.Consent 13 is configured to inclined hole, and the position in top cover 5 outsides in cylinder head 2 is more then the closer to intake manifold 7 sides.Cover surface (example of cap surface) 2a and open wide so that consent 13 to be set, and gag mounting flange 11 is installed to this via pad (example of seal arrangement) 17 and is covered the surface.The 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 this coil portion is secured to the portion 15 of stretching out of gag mounting flange 11 by bolt 16 (example of fixing device).In addition, reference character 2b represents smooth lid lower surface, and the lid lower surface is connected to cylinder head 2 upper surface of cylinder block 1 (not shown).
Be formed an one-piece parts with the gag 9 of the integrated pattern of spark coil, this one-piece parts comprises holding part 9A, closure 9B and coil portion 9C; Holding part 9A is by from the external mounting to the igniter plug on 10, and has the filling chamber 9a that can pass and keep igniter plug 10 from holding part in its lower end.Electric conductor is placed in the holding part 9A, and realizes from coil portion 9C to igniter plug 10 conduct.The function of closure 9B is stretched out in the portion 15 when installing for being inserted into when it, and this closure 9B is seamless, and the unoccupied place covers and the upper end of a portion 15 is stretched out in sealing, thereby stops among the foreign matter intrusion elongated hole 15A such as dirt.Coil portion 9C comprises link 9c and flange 9k.Flange 9k is fastened to from stretching out the upper surface (not marking with reference character) of the outstanding installation arm 15a of a portion 15 by bolt 16, thereby gag 9 is fixed to the portion 15 of stretching out, and just is fixed to gag mounting flange 11.In addition, in Fig. 3, reference character 19,20,21 and 22 is represented outlet valve respectively, is formed on relief opening, exhaust side rocking arm and exhaust side push rod in the cylinder head 2.
Shown in Fig. 3, Fig. 4, Fig. 5 (a) and Fig. 5 (b) and Fig. 6 (a), gag mounting flange 11 comprises: single lip part 11A, by pad 7 by bolton to the upper surface 2a that contacts with lip part 11A face of cylinder head 2; Stretch out a portion 15, form from lip part 11A protuberance four positions; Nozzle patchhole 11a is set at four positions, is used to install nozzle 25; Nut portions 11b at four position protuberances, is used for coming fastening delivery pipe 18 by bolt; And mounting hole 11c, nine positions, be used for by bolt carry out fastening, all mounting hole 11c and other parts integrally formed.More specifically, (example that multichannel is supplied with) is provided with consent 13 to cylinder head 2 four positions.Stretch out a portion 15 and be set at four positions corresponding with the consent 13 that is positioned at four positions, but also integrally formed with gag mounting flange 11.Although not shown, 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 all 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.
Shown in Fig. 6 (b), pad 17 is formed and comprises: hole 17a, be set at four positions, and be respectively applied for elongated hole; Other holes 17c four positions, is respectively applied for the insertion nozzle; And other hole 17c, nine positions, be respectively applied for bolt.Each elongated hole inserts with hole 17b with hole 17a and nozzle and is constructed to all make that its peripheral portion has the sealability of strengthening by such as the steel plate materials of SPCC.
As Fig. 4 and Fig. 1, Fig. 2, Fig. 8 and shown in Figure 9, cylinder head 2 is formed with suction port 23 and spray-hole 24, and this spray-hole is tilted so that be communicated with suction port 23.Gag mounting flange 11 has nozzle patchhole 11a; Nozzle patchhole 11a is used for tilting and during in the face of spray-hole 24, bottom 25b being inserted this nozzle patchhole airtightly along spray-hole 24 as bottom 25b (being the front end of nozzle 25).Four nozzles 25 have top 25a separately, and described top constitutes base end part, when top 25a extends and when laterally settling along fore-and-aft direction, will top 25a insert in the delivery pipe 18 and by delivery pipe 18 and support.Delivery pipe 18 forms following structure: be fixed to the nut portions 11b of protuberance by fixing device 32, nut portions 11b is set at totally four positions.Among the nut portions 11b of four protuberances three respectively with to stretch out a portion 15 integrally formed.In addition, reference character 26c represents the link of nozzle 25.
As shown in Figure 7, delivery pipe 18 is the member that comprises single extra heavy pipe 18A of portion and ridge 18B, and described ridge is outstanding from the 18A of extra heavy pipe portion four positions.Delivery pipe 18 is passed the nut portions 11b of the bolton of mounting hole 26 to each protuberance, and described mounting hole is formed among each ridge 18B.As Fig. 7 (a) to shown in 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 the 18A of pipe portion, and screw section 28 is used for coming fastening nozzle stopper 29 by bolt.More specifically, delivery pipe 18 is set to, and inserts four nozzles 25 supporting this four nozzles, and stretches out a portion 15, is installed to the nut portions 11b of three protuberances and the nut portions 11b of another protuberance by fixing device 32 through each.Fixing device 32 is a bolt.Therefore, the Elementary Function of delivery pipe 18 is fuel is distributed and to be fed to each nozzle 25, and other has a function is to support each nozzle 25, and also having a function is to strengthen three to stretch out a portion 15.Therefore, realized rational design by making a member have multiple function.
Shown in Fig. 7 (f), Fig. 7 (g) and Fig. 7 (h), nozzle stopper 29 comprises the longer 29A of portion and is positioned at the holding part 29B of four positions, and made by metallic sheet material.Nozzle stopper 29 is used to prevent that each nozzle 25 breaks away from delivery pipe 18.The longer 29A of portion is formed with restraint hole 30 four positions, described restraint hole is used for by screw longer portion being fixed to each screw section 28, each holding part 29B is provided with breach groove 31, and described breach groove is used for each nozzle 25 is pushed insertion and is assembled to the breach groove.More specifically, as shown in Figure 4, be inserted into the breach groove 31 that make to slide at holding part 29B and be located under the situation of top 25a of nozzle 25, will the longer 29A of portion screw thread be fixed to the nut portions 28 of each protuberance by restraint hole 30.Subsequently, bottom 25b is inserted among the nozzle patchhole 11a with sealing means, and top 25a is also inserted in the mounting hole 27 with sealing means.Like this, four nozzles 25 can firmly and reliably be supported by gag mounting flange 11.
Should be pointed out that reference character 31a represents to be used to stop the groove of rotation in Fig. 7 (g), this groove engages so that link 25c is positioned with the prevention rotation jut 25d of nozzle 25.
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 that is assembled into single-piece (ASSY) in advance is installed to cylinder head 2, then can efficiently assembles ignition mechanism (A).At first, the top 25a with four nozzles 25 inserts in the respective nozzles mounting hole 27.Subsequently, nozzle stopper 29 is inserted among the 25a of each top, and nozzle stopper 29 is engaged with each screw section 28 by the fixing bolt of usefulness.Afterwards, by as the bolt of fixing device 32 with the nut portions 11b that four ridge 18B are fastened to protuberance because the bottom 25b of nozzle 25 is inserted into respective nozzles insertion part 11a four positions, kept so be provided with the delivery pipe 18 of four nozzles 25.
Subsequently, the holding part 9A of gag 9 is inserted the elongated hole 15A that is arranged in four positions, then in the mode of screw-thread fit the flange 9K of gag 9 is installed to arm 15a is installed, make nozzle 25, delivery pipe 18 and gag 9 and gag mounting flange 11 form one thus by bolt 16.For example, in factory, this process can realize comprising the effective operation of following content:
Implementing on secondary production line will be such as various component-assembled such as gags 9 to the pre-number of assembling steps of gag mounting flange 11 with the formation single piece body; And
To be assembled into the cylinder head 2 of the engine main body that on main line, transmits 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 all be set in the air-guiding aisle 42, this air-guiding aisle is used for the engine cooling wind that launched machine cooling fan 41 is sent.
Air-guiding aisle 42 has left wind-guiding guide portion and the right wind-guiding guide portion that is made of intake manifold 8 and top cover 5.
As depicted in figs. 1 and 2, intake manifold 8 has is responsible for 7, and throttle valve body 43 is installed to the described person in charge's front end.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) of being located in the throttle valve body 43 is driven by the electric actuator 49 that is arranged in addition in the 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 set at the upside of air-guiding aisle 42, covers air-guiding aisle 42 simultaneously from the top.Electronic unit holding part 46 is set on the upper surface of wind deflector 45.Electronic unit holding part 46 is ccontaining such as electronic units such as safety fuse cutouts.
As shown in Figure 2, the venting channels 47 that extends to intake manifold 8 sides from top cover 5 sides is set at the position that the engine cooling wind that blows out faces.Venting channels 47 makes the PCV valve 50 that is arranged in the top cover 5 be communicated with intake manifold 8." PCV " is the abbreviation of " positive crankcase ventilation (PCV) ".
As mentioned above, spark formula igniter plug according to the present invention provides following function and effect.
Comprise the gag mounting flange 11 that stretches out a portion 15 as the individual components manufacturing, and be constructed to be installed to the upper surface 2a of cylinder head 2 according to the installation conditions of top cover 5.Therefore, compare, form (processing in other words) cylinder head 2 and become easy with the situation that gag mounting flange 11 and cylinder head 2 are integrally formed.And, not outstanding significantly owing to stretch out a portion 15, institute is so that handle cylinder head 2 in manufacture process.In addition, the processibility that covers surperficial 2a is so good, is processed as single plat surface and just can meets the demands so will cover surperficial 2a.
By with the delivery pipe 18 that is set at the next door, top of stretching out a portion 15, be fastened on three positions from the outstanding significantly portion 15 of stretching out of lip part 11A with bolt, can realize the integrality reinforcement thus, thereby suppress to stretch out rocking of a portion 15.This can prolong the working life of gag mounting flange 11 or gag 9.
Claims (14)
1. spark ignition engines comprises: consent (13) the most inboardly is provided with plug mounting hole (12) at it, and is formed in the cylinder head (2); Igniter plug (10) engages with described plug mounting hole (12) with thread fiting mode; And with the gag (9) of the integrated pattern of spark coil, when described gag (9) was inserted in the described consent (13), described gag (9) was installed to described igniter plug (10), wherein:
Described consent (13) is set at the position in top cover (5) outside on the described cylinder head (2); The cap surface (2a) of described cylinder head (2) opens wide so that described consent (13) to be set, and has gag mounting flange (11) to be installed to described cap surface; And described gag mounting flange (11) is formed with the portion (15) of stretching out, and a described portion of stretching out has the elongated hole (15A) that is communicated with described consent (13); When described gag (9) when described elongated hole (15A) is inserted into the described consent (13), the coil portion (9C) of described gag (9) is fixed to the described portion (15) of stretching out.
2. spark ignition engines as claimed in claim 1, wherein:
Be provided with a plurality of consents (13), and described stretch out a portion be set up the be set up number of number corresponding to described consent (13); And
A plurality of described stretch out a portion (15) with only a described gag mounting flange (11) is integrally formed.
3. spark ignition engines as claimed in claim 1, wherein:
Be provided with a plurality of consents (13), described stretch out a portion (15) be set up the be set up number of number corresponding to described consent (13); And
Delivery pipe (18) is used for fuel is assigned to nozzle (25); Described nozzle be set up the be set up number of number corresponding to described consent (13); Described delivery pipe (18) is from a plurality of described side bypass mistakes of stretching out a portion (15), and is installed at least two described portions (15) of stretching out by fixing device (32) respectively.
4. spark ignition engines as claimed in claim 3, wherein:
A plurality of described stretch out a portion (15) with only a described gag mounting flange (11) is integrally formed.
5. spark ignition engines as claimed in claim 4, wherein:
A plurality of described nozzles (25) are installed to described delivery pipe (18), and each described nozzle (25) is inserted in a plurality of nozzle patchholes (11a); Described a plurality of nozzle patchholes (11a) are set in the single described gag mounting flange (11).
6. 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 that is used for described elongated hole (15A).
7. spark ignition engines as claimed in claim 6, wherein:
Described seal arrangement (17) is a pad.
8. spark ignition engines as claimed in claim 1, wherein:
Described stretching out in the air-guiding aisle (42) that a portion (15) is set at the engine cooling wind that launched machine cooling fan (41) sends.
9. spark ignition engines as claimed in claim 8, wherein:
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 of intake manifold (8) and described top cover (5) respectively.
10. spark ignition engines as claimed in claim 9, wherein:
Described intake manifold (8) has the person in charge (7), throttle valve body (43) is installed to the front end of the described person in charge (7), and described throttle valve body (43) and described top cover (5) form the left wind-guiding guide portion and the right wind-guiding guide portion of the air input part (42A) of described air-guiding aisle (42).
11. spark ignition engines as claimed in claim 8, wherein:
Wind deflector (45) is set at the upside of described air-guiding aisle (42), and described wind deflector (45) covers described air-guiding aisle (42) from the top simultaneously, and electronic unit holding part (46) is set on the upper surface of described wind deflector (45).
12. spark ignition engines as claimed in claim 11, wherein:
Wire harness (48) is supported by the upper surface of described wind deflector (45).
13. spark ignition engines as claimed in claim 11, wherein:
Described wind deflector (45) is installed to described intake manifold (8).
14. spark ignition engines as claimed in claim 8, wherein:
The venting channels (47) that extends to described intake manifold (8) side from described top cover (5) side is set at the position that the engine cooling wind that blows out faces.
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 true CN102162418A (en) | 2011-08-24 |
| CN102162418B CN102162418B (en) | 2015-07-01 |
Family
ID=44463821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010288304.4A Active CN102162418B (en) | 2010-02-24 | 2010-09-19 | Spark-ignition engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102162418B (en) |
Cited By (2)
| 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 |
Citations (4)
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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 |
| US20030230294A1 (en) * | 2002-06-12 | 2003-12-18 | Koji Tsunenaga | Ignition coil assembly for 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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| JPH0979021A (en) * | 1995-09-12 | 1997-03-25 | Kubota Corp | Breather pipe for engine |
| 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 |
| US20030230294A1 (en) * | 2002-06-12 | 2003-12-18 | Koji Tsunenaga | Ignition coil assembly for engine |
Cited By (2)
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102162418B (en) | 2015-07-01 |
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