CN101092897A - Internal combustion engine for vehicle - Google Patents
Internal combustion engine for vehicle Download PDFInfo
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- CN101092897A CN101092897A CNA200710112210XA CN200710112210A CN101092897A CN 101092897 A CN101092897 A CN 101092897A CN A200710112210X A CNA200710112210X A CN A200710112210XA CN 200710112210 A CN200710112210 A CN 200710112210A CN 101092897 A CN101092897 A CN 101092897A
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- relief opening
- spark plug
- ignition spark
- cylinder head
- cylinder
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Exhaust Gas After Treatment (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
An IC engine for vehicles is provided. The cylinder cover has suction/discharge port and two ignition spark plugs. The respective ignition spark plug and a secondary air introducing path are disposed effectively. The IC engine for vehicles includes: a cylinder cove with the suction/discharge port, two ignition spark plug arranged on the cylinder cover, wherein one ignition spark plug is disposed at one side, clamping the discharge port; the secondary air introducing path for supporting the secondary air to the discharge port at the other side.
Description
Technical field
The present invention relates on cylinder head, possess the vehicle internal-combustion engine of air-breathing relief opening and two ignition spark plugs.
Background technique
At present, the structure that possesses secondary air-supply device is arranged in internal-combustion engine, this secondary air-supply device feeding secondary air and make unburned gas contained in the exhaust carry out secondary combustion (for example with reference to patent documentation 1) in the relief opening of cylinder head at vehicle.Secondary air importing path with respect to relief opening is configured in the side opposite with ignition spark plug that relief opening is clipped in the middle.
Patent documentation 1:(Japan) No. 2555048 communique of login model utility
Above-mentioned vehicle is with in the internal-combustion engine, adopting under the situation of dual ignition plug in order to improve combustion performance, improve output and to seek the low fuel expense, wish to have on the basis of considering the property cooled off around each spark-plug hole of cylinder head, can high efficiency arrange that each ignition spark plug and secondary air import the structure of path.
Summary of the invention
The present invention In view of the foregoing develops, and the vehicle that purpose is to possess air-breathing relief opening and two ignition spark plugs on cylinder head is with in the internal-combustion engine, and high efficiency arranges that each ignition spark plug and secondary air import path.
As the means that solve above-mentioned problem, a first aspect of the present invention is a vehicle internal-combustion engine (for example embodiment's motor 20), it possesses: the cylinder head (for example embodiment's cylinder head 24) that is provided with suction port (for example embodiment's suction port 49) and relief opening (for example embodiment's relief opening 50), be installed in two ignition spark plugs on this cylinder head (each ignition spark plug 64 of embodiment for example, 65), it is characterized in that, described relief opening being clipped among described each ignition spark plug of side configuration one of wherein mode, and import path (for example embodiment's secondary air imports path 83) to the secondary air that the cylinder outside is extended with to described relief opening feeding secondary air at opposite side.
A second aspect of the present invention is the side configuration at described relief opening: the wind introducing port of advancing (for example embodiment's the wind introducing port 75 of advancing) that is arranged on the air-casing (for example embodiment's air-casing 69) on the described cylinder head.
A third aspect of the present invention is that cylinder-bore axis (for example embodiment's cylinder-bore axis C) is configured to and vehicle direct of travel almost parallel, and from this cylinder-bore axis direction, the relief opening of described cylinder head is configured to import passage side to described secondary air and tilts.
A fourth aspect of the present invention is that an ignition spark plug that is configured in described relief opening one side is arranged near the wind introducing port of advancing of the air-casing that is provided with on the described cylinder head, another ignition spark plug is arranged near the air outlet (for example embodiment's main exhaust port 76) of described air-casing, described secondary air is imported channel setting near described air outlet.
A fifth aspect of the present invention is to make a described ignition spark plug than the more approaching described relief opening of another ignition spark plug.
The vehicle of a sixth aspect of the present invention is with internal-combustion engine (embodiment's motor 20 for example, 120) possess: the cylinder head (for example embodiment's cylinder head 24) that is provided with suction port (for example embodiment's suction port 49) and relief opening (for example embodiment's relief opening 50), be installed in two ignition spark plugs on this cylinder head (each ignition spark plug 64 of embodiment for example, 65), it is characterized in that, the ignition wire that assembles on described each ignition spark plug (each ignition wire 88 of embodiment for example, 89) be treated to respectively to the direction of leaving from described relief opening and extend, avoid described relief opening.
A seventh aspect of the present invention is to make among described each ignition spark plug one than another more approaching described relief opening, and the secondary air that disposes to described relief opening feeding secondary air in the side of the described ignition spark plug opposition side of described exhaust ports imports path (for example embodiment's secondary air imports path 83).
According to the invention of first aspect, in the cylinder head of dual ignition plug, be provided with secondary air and import path and improved the purifying property of exhaust, and can high efficiency arrange that two ignition spark plugs and secondary air import path.
According to the invention of second aspect, can guarantee that the advance opening area of wind introducing port of air-casing is big and improve the cooling performance of cylinder head.
According to the invention of the third aspect, can guarantee that the advance opening area of wind introducing port of air-casing is bigger.
According to the invention of fourth aspect, when well cooling off around each ignition spark plug, the wind introducing port of guaranteeing to advance is bigger.
According to the invention of the 5th aspect, can avoid disposing secondary air and import path by the closer described ignition spark plug of relief opening, can guarantee that the configuration space of this secondary air importing path is broad.
According to the invention of the 6th aspect, can alleviate the influence of exhaust heat for two ignition wires.
According to the invention of the 7th aspect, can avoid disposing secondary air and import path by the closer described ignition spark plug of relief opening, can guarantee that the configuration space of this secondary air importing path is broad.
Description of drawings
Fig. 1 is the left surface figure of the automatic two-wheeled cycle of the embodiment of the invention;
Fig. 2 is the right hand view of above-mentioned motor;
Fig. 3 is the expansion sectional drawing of above-mentioned motor;
Fig. 4 is the A-A sectional drawing (cylinder-bore axis is to view) of Fig. 2;
Fig. 5 sees above-mentioned motor stereogram on every side from right back top;
Fig. 6 sees above-mentioned motor stereogram on every side from left back top;
Fig. 7 is the motor prior figures on every side of second embodiment of the invention;
Fig. 8 sees Fig. 7 motor stereogram on every side from right back top;
Fig. 9 sees Fig. 7 motor stereogram on every side from left back top.
Description of reference numerals
20,120 motors (vehicle internal-combustion engine)
24 cylinder head
49 suction ports
50 relief openings
64 first ignition spark plugs (ignition spark plug)
65 second ignition spark plugs (ignition spark plug)
69 air-casings
The 75 wind introducing ports of advancing
76 main exhaust ports (air outlet)
83 secondary airs import path
88 first ignition wires (ignition wire)
89 second ignition wires (ignition wire)
The C cylinder-bore axis
Embodiment
Following with reference to the description of drawings embodiments of the invention.Below wait direction all around in the explanation, if there be not special record and narrate then identical with direction on the vehicle.Arrow FR among the figure represents that vehicle front, arrow LH represent that vehicle left, arrow UP represent the vehicle top.
[embodiment 1]
In the automatic two-wheeled cycle shown in Figure 1 (vehicle) 1, the left and right sides front fork 5 of supporting front-wheel 4 is being positioned on the head pipe 3 of body framework 2 front ends by turning to axostylus axostyle 6 to be propped up by pivot with turning to.The handlebar 7 of controlling party to usefulness is installed on the top that turns to axostylus axostyle 6.
From the beginning body framework 2 manages 3 to oblique rear extension down for being responsible for 8 to one, the labour contractor manage 3 and passenger with improving the so-called spine type of riding on property (バ ッ Network ボ one Application type) easily as lower curtate between the seat 9.Left and right sides pivotable frame 10 engages with the rearward end of being responsible for 8, and the front end of the swing arm 12 of supporting wheels 11 can swingingly be propped up on this left and right sides pivotable frame 10 by pivot.
Front end to the left and right sides seat frame 13 of tiltedly going up rear extension engages with the rear portion of being responsible for 8, disposes left and right sides posterior bumper 14 respectively between the left and right arms rearward end of the front and back of this left and right sides seat frame 13 intermediate portion and swing arm 12.Front and back have the driver with and the rear portion co-rider be configured in the top of left and right sides seat frame 13 with the described seat 9 of seat face.Symbol 15 expressions is the pedal that the driver uses among the figure, and what symbol 16 was represented is the pedal that the rear portion co-rider is used.
Prime mover of automatic two-wheeled cycle 1 is the central lower inboard (inboard of described lower curtate) that motor (internal-combustion engine) 20 is configured in body framework 2.Motor 20 is to make the air cooling single cylinder engine of crankshaft center line along vehicle-width direction (left and right directions), has cylinder portion 22 is erect the basic structure that is provided with from the front end of its crankcase 21 towards vehicle front.When being bearing on the left and right sides pivotable frame 10 up and down, the top of crankcase 21 is bearing on the person in charge 8 the front and back intermediate portion by engine lifting bracket 8a, motor 20 is suspended on the body framework 2 by the rear portion that makes crankcase 21.
On the cylinder head 24 of cylinder portion 22 front ends (forward end), the side is connected with the downstream side of Carburetor 26 from it, and is connected with the butt side of outlet pipe 27 from its below.Being supported in the air filter housing 26a that is responsible for 8 underside of forward is connected with the upstream side of Carburetor 26.
Rotating power from motor 20 is exported to the driving sprocket wheel 32 in left side, crankcase 21 rear portions by clutch in the crankcase 21 and speed changer, transmits by the driven sprocket 34 of chain drive-belt 33 to trailing wheel 11 left sides from this driving sprocket wheel 32.
The cylinder portion 22 of the front portion of body framework 2, motor 20, Carburetor 26 and air filter housing 26a etc. are synthesized resinous front body cover 35 and cover.The shank that front body cover 35 is gone back double as protection driver is not subjected to the leg protection cover from the infringements such as blast in the place ahead.The rear portion of body framework 2 is synthesized resinous rear body cover 36 equally and covers.This rear body cover 36 supports seat 9 with left and right sides seat frame 13.Dispose the article receiving box 37 that is positioned under the seat 9 in rear body cover 36, the underside of forward of this article receiving box 37 disposes by the fuel tank 38 of the front portion of left and right sides seat frame 13 supporting.
Simultaneously with reference to Fig. 2, Fig. 3,22 its axis (cylinder-bore axis) C of cylinder portion of motor 20 be arranged to relative ground be approximate horizontal (being to go up a little forward specifically) and from the front end of crankcase 21 forwards (vehicle direct of travel) outstanding.Cylinder portion 22 mainly includes: be installed in crankcase 21 front ends cylinder body 23, be installed in these cylinder body 23 front ends described cylinder head 24, be installed in the valve mechanism cover 25 of these cylinder head 24 front ends.Following handle is set at the fore-and-aft direction of cylinder along the fore-and-aft direction of the 22 described axis C of cylinder portion, the above-below direction with described axis C quadrature is set at the above-below direction of cylinder.
Be formed with the cylinder hole 39 along described cylinder-bore axis C in the cylinder body 23, piston 40 can be inlaid in this cylinder hole 39 to to-and-fro motion.Piston 40 links by connecting rod 41 and bent axle 42 and the to-and-fro motion of piston 40 is transformed into rotatablely moving of bent axle 42.
Simultaneously with reference to Fig. 4, each gas port the 49, the 50th, described firing chamber and the suction side assembly department 53 on cylinder head 24 tops or the circulation flow path that is communicated with the exhaust side assembly department 54 of cylinder head 24 bottoms, from the combustion chamber side opening to oblique the place ahead extend the back and upward or the below crooked and arrive suction side assembly department 53 or exhaust side assembly department 54.The last face of suction side assembly department 53 or the lower face of exhaust side assembly department 54 be combined with respectively the slider of Carburetor 26 or outlet pipe 27 in conjunction with flange.
The combustion chamber side opening of suction port 49 is positioned at the top of top formation portion 48 and is in the left side of cylinder-bore axis C, from this opening roughly upward (being to tilt a little to the right specifically) extend and arrive and be positioned at the suction side assembly department 53 of cylinder-bore axis C directly over roughly.
The combustion chamber side opening of relief opening 50 is positioned at the bottom of top formation portion 48 and is on the right side of cylinder-bore axis C, arrives the exhaust side assembly department 54 that is positioned at cylinder-bore axis C top and right side to oblique lower right diagonally extending from this opening.
As shown in Figure 2, each valve 51,52 is formed bar-shaped axostylus axostyle by the umbrella valve body that mates from the combustion chamber side opening with each gas port 49,50 to the extension of oblique the place ahead.Each axostylus axostyle sees that from the cylinder side being into V word shape extends, and its forward end is projected in the valve cage on the cylinder head 24.
The spring force of valve spring by the valve spring cover for seat to the input of the forward end of each axostylus axostyle, pressured upward and the combustion chamber side opening obturation of each gas port 49,50 by this spring force described valve body.On the other hand, by the spring force of resisting valve spring each axostylus axostyle (each valve 51,52) is moved downwards, then described each valve body leaves and they is opened from the combustion chamber side opening of each gas port 49,50.
With reference to Fig. 3, between the axostylus axostyle of each valve 51,52, dispose and bent axle 42 single camshafts 55 parallel and that extend to the left and right simultaneously.Camshaft 55 possesses air inlet cam and exhaust cam at its length direction intermediate portion with being integral, is driven in rotation with bent axle 42 interlocks by being configured in the cylinder portion inboard cam chain 56 in 22 left sides.
In valve mechanism cover 25 sides of camshaft 55, front and back dispose suction side in parallel and exhaust side pitman arm shaft 58,59.Can free joltily support the axostylus axostyle front end of crossing over corresponding each cam and each valve 51,52 on each pitman arm shaft 58,59 respectively and the suction side of the extending or the intermediate portion of exhaust side rocking arm 60,61.
Along with the rotation of camshaft 55 drives, shake according to each rocking arm 60,61 of periphery figure of each cam, each valve 51,52 moves back and forth and the combustion chamber side opening of each gas port 49,50 is opened and closed along its axostylus axostyle thus.
Simultaneously with reference to Fig. 4, motor 20 in order to improve combustion performance, improve output and to seek the low fuel expense by dual ignition plugization.Bottom in cylinder head 24 is equipped with first ignition spark plug 64 from oblique front lower place, in the left side of cylinder head 24 before tiltedly right-hand second ignition spark plug 65 that is equipped with.Bottom and left side in cylinder head 24 are formed with first or second spark-plug hole 66,67 that is used to make each the described top of ignition spark plug 64,65 arrival formation portion 48 respectively.Each ignition spark plug 64,65 is tightened in the tapped hole that is formed at formation portion 48 places, top by corresponding spark-plug hole 66,67, is fixed on the cylinder head 24 towards the state in the firing chamber with its front end electrode part.
First ignition spark plug 64 roughly is being configured in the plane orthogonal with respect to the above-below direction of cylinder with left and right directions and is tilting, and second ignition spark plug 65 roughly is being configured to tilt with respect to left and right directions in the plane orthogonal with the cylinder above-below direction.Each ignition spark plug 64,65 shown in Figure 4 to view (along cylinder-bore axis C to looking, below be called cylinder-bore axis sometimes to looking) in be configured to roughly L word shape.First ignition spark plug 64 is biased the left side that is configured in cylinder-bore axis C, and second ignition spark plug 65 is biased the top that is configured in cylinder-bore axis C.The left side adjacency of first ignition spark plug 64 and relief opening 50 is configured to than second ignition spark plug 65 near relief openings 50.
At this, in order effectively to cool off, and on cylinder head 24, form the air-casing 69 that can make cooling air (wind of advancing) circulation around each spark-plug hole 66,67 to cylinder head 24 inside (particularly around each spark-plug hole 66,67).Air-casing 69 is in order will be between each spark-plug hole 66,67 to be communicated with and the space that forms between the bottom 70 of the top of cylinder head 24 formation portion 48 and described valve cage, is the inner wall part 73 and the formation in conjunction with the bolt insertion part 74 of cylinder head 24 and crankcase 21 etc. etc. of the cam chain chamber 62 in the air-breathing relief opening formation portion 71,72 that keeps tubulose, cylinder portion 22 left sides.Can increase substantially the cooling of cylinder head 24 directly cooling off by cooling air (wind of advancing) around each spark-plug hole 66,67 of cylinder head 24 inboards by this air-casing 69.
Air-casing 69 with open downwards first spark-plug hole, 66 peripheries in cylinder head 24 bottoms as the wind introducing port 75 of advancing, peripheral as the wind exhaust port of advancing (below be called main exhaust port) 76 with cylinder head 24 right sides to right-hand second spark-plug hole of opening 67.That is, first ignition spark plug 64 is configured near the wind introducing port 75 of advancing, and second ignition spark plug 65 is configured near the main exhaust port 76.Air-casing 69 forms from the cylinder-bore axis direction to see it is to bend to roughly L word shape to the wind of advancing from the wind introducing port 75 of advancing to the wind primary path of advancing of main exhaust port 76.Be provided with the secondary exhaust port 76a that the part of the wind of advancing that imports from the wind introducing port 75 of advancing is discharged upward in air-casing 69 in suction port formation portion 71 both sides on cylinder head 24 tops.Be provided with the center radiating fin 77 of aeolian accumulation polar region of advancing that in air-casing 69, imports at the L of air-casing 69 word shape intermediate portion to main exhaust port 76 guiding.
The wind introducing port 75 (first spark-plug hole 66) of advancing is formed between the bolt insertion part 74 of relief opening formation portion 72 and lower-left, and main exhaust port 76 (second spark-plug hole 67) is formed between the bolt insertion part 74 of upper right and bottom right.The wind introducing port 75 of advancing is seen narrower than the width of main exhaust port 76 from the cylinder-bore axis direction, first ignition spark plug 64 is configured to be clipped between relief opening formation portion 72 and the bolt insertion part 74.Relief opening formation portion 72 (relief opening 50), advance wind introducing port 75 and first ignition spark plug 64 roughly be about configuration side by side.Be provided with the wind deflector 78 of the wind introducing port 75 of advancing (first spark-plug hole 66) of the wind direction air-casing 69 of advancing guiding in the bottom of cylinder head 24 (road surface side).
At this, relief opening 50 is to the exhaust side assembly department 54 of oblique lower right diagonally extending to cylinder portion 22 right sides from its combustion chamber side opening, like this, guaranteed the charge and discharge operations space of first ignition spark plug 64, that is, the left and right sides width of the wind introducing port 75 of advancing is big, and the charge and discharge operations of first ignition spark plug 64 is carried out easily, and make the flow of air-casing 69 expert air intakes increase the cooling that can improve cylinder head 24.
At this, motor 20 possesses the exhaust feeding secondary air in relief opening 50 and promotes the secondary air-supply device of its purification.
As Fig. 4, shown in Figure 5, secondary air supplying pipe 81 extends from described air filter housing 26a, and this secondary air supplying pipe 81 connects with the lining 82 that is connected of the described exhaust side assembly department 54 of cylinder head 24.Connect the right side that lining 82 is positioned at exhaust side assembly department 54 (opposition side of first ignition spark plug 64, cylinder head 24 about the outside), this connects the secondary airs that form in lining 82 and imports the right inwall upper shed of paths 83 at relief opening 50.In other words, dispose secondary air on its right side in the mode that relief opening 50 is clipped in the middle and import path 83, dispose first ignition spark plug 64 and the wind introducing port 75 of advancing in the left side.Secondary air imports path 83 and extends out to the cylinder outside from relief opening 50.
Sucked by described secondary air supplying pipe 81 from air filter housing 26a corresponding to the negative pressure fresh airs in the relief opening 50, this air is directed in the relief opening 50 and makes unburnt ingredient secondary combustion in the exhaust.The intermediate portion of secondary air supplying pipe 81 is provided with in air suction way when producing strong negative pressure etc. and stops the control valve 84 that secondary air is supplied with.
With reference to Fig. 6, first ignition wire 88 is connected with first ignition spark plug 64 by first spark plug cap 86 of L word shape simultaneously, and second ignition wire 89 is connected with second ignition spark plug 65 by second spark plug cap 87 of same L word shape.
First spark plug cap, 86 one sides be installed in first ignition spark plug 64 from the protuberance of cylinder head 24, its opposite side is (opposition side of relief opening 50) bending extension upward, this opposite side is connected with a side of first ignition wire 88.First ignition wire 88 is turned back on one side forwards, backwards, and ground is crooked to be extended to the cylinder top on one side, and its opposite side is connected with first spark coil 90 that is configured in the person in charge 8 right sides.
On the other hand, second spark plug cap, 87 one sides be installed in second ignition spark plug 65 from the protuberance of cylinder head 24, its opposite side is at left (opposition side of relief opening 50) bending extension, this opposite side is connected with a side of second ignition wire 89.Second ignition wire 89 is walked around cylinder from the left side on one side and is crookedly extended to its top on one side, is responsible for 8 right sides and is connected at first spark coil side's after 90s second spark coil 91 with being configured in.
As described above, the mobile engine 20 of the foregoing description possesses cylinder head 24 that is provided with suction port 49 and relief opening 50 and two ignition spark plugs 64,65 that are installed on this cylinder head 24, in the mode that described relief opening 50 is clipped in the middle, at ignition spark plug 64 of one side configuration, and import path 83 to the secondary air of described relief opening 50 feeding secondary airs in the opposite side configuration.
According to this structure, secondary air is set in the cylinder head 24 of dual ignition plug imports path 83 and improved the purifying property of exhaust, and can high efficiency arrange that two ignition spark plugs 64,65 and secondary air import path 83.
And in the above-mentioned motor 20, dispose the wind introducing port 75 of advancing of the air-casing 69 that is arranged on the described cylinder head 24 in a side of described relief opening 50, the opening area of the wind introducing port 75 of advancing that can guarantee air-casing 69 thus is big, thereby improves the cooling performance of cylinder head 24.
And in the above-mentioned motor 20, cylinder-bore axis C is configured to and vehicle direct of travel almost parallel, from along this cylinder-bore axis C direction, the relief opening 50 of described cylinder head 24 is configured to import path 83 lopsidedness to described secondary air, can guarantee that like this opening area of the wind introducing port 75 of advancing of air-casing 69 is bigger.
And in the above-mentioned motor 20, an ignition spark plug 64 that is configured in described relief opening 50 1 sides is arranged near the wind introducing port 75 of advancing of described air-casing 69, another ignition spark plug 65 is arranged near the main exhaust port 76 of described air-casing 69, described secondary air is imported path 83 to be arranged near the main exhaust port 76 of described master, thus, can well cool off each ignition spark plug 64,65 around, and the wind introducing port 75 of guaranteeing to advance is bigger.
And in the above-mentioned motor 20, make a described ignition spark plug 64 than the more approaching described relief opening 50 of another ignition spark plug 65, like this, can avoid disposing secondary air and import path 83, can guarantee that the configuration space of this secondary air importing path 83 is broad apart from relief opening 50 nearer described ignition spark plugs 64.
And in the above-mentioned motor 20, the ignition wire 88,89 of assembling on described each ignition spark plug 64,65 is treated to a side opposite with described relief opening 50 extends and avoid described relief opening, like this, can improve the processing degrees of freedom of each ignition wire 88,89.
[embodiment 2]
Below with reference to Fig. 7～Fig. 9 the second embodiment of the present invention is described.
This embodiment's motor 120 main difference with respect to described first embodiment is, possesses the electronic control type fuel supplying device, and do not have described secondary air-supply device, the part identical with previous embodiment paid identical reference character and omitted its explanation.
On the described suction side assembly department 53 on cylinder head 24 tops of motor 120, square tube is crossed the downstream side that slider is connected with the one-piece type tb 126 of nozzle (fuel injection system) for example from it.The upstream side of tb 126 is connected with described air filter housing 26a.
At this, the exhaust side assembly department 54 of motor 120 (relief opening 50) is provided with the exhaust sensor (oxygen concentration sensor) 68 of the oxygen concentration that detects exhaust, sets the target gas-fuel ratio of motor 120 according to the checkout value of this exhaust sensor 68.It for example is to be inserted into exhaust side assembly department 54 front portions from the place ahead that exhaust sensor 68 is installed as.Can utilize the connection lining 82 of described secondary air supplying pipe 81 usefulness as the assembly department of exhaust sensor 68, have and described first embodiment's cylinder head 24 between the shared property of part seek to reduce cost.
Promptly, same with described first embodiment, each ignition wire 88,89 is treated to from corresponding ignition spark plug 64,65 and extends and avoid relief opening 50 to a side (direction of leaving) opposite with relief opening 50 respectively, like this, can improve the processing degrees of freedom of each ignition wire 88,89.
The present invention is not limited to the various embodiments described above, for example also can constitute relief opening 50 from the combustion chamber side opening and roughly extend downwards, sees structure with first ignition spark plug, 64 almost parallels from the cylinder-bore axis direction.
And also can be useful in: have on the cylinder head air-breathing exhaust with the DOHC motor of two camshafts, do not use rocking arm and directly drive on the quantity of the direct press type motor of valve, air-breathing the drain tap different motor and multiple cylinder engine and water cooled engine with camshaft.
The structure of the foregoing description is an example of the present invention, also can be useful in certainly on the various vehicles such as motor scooter, can carry out various changes in the scope that does not break away from main idea of the present invention.
Claims (7)
1, a kind of vehicle internal-combustion engine, possess: be provided with suction port and relief opening cylinder head, be installed in two ignition spark plugs on this cylinder head, it is characterized in that, described relief opening being clipped among described each ignition spark plug of side configuration one of wherein mode, and import path to the secondary air that the cylinder outside is extended with to described relief opening feeding secondary air at opposite side.
2, vehicle internal-combustion engine as claimed in claim 1 is characterized in that, in the configuration of a side of described relief opening: the wind introducing port of advancing that is arranged on the air-casing on the described cylinder head.
3, vehicle internal-combustion engine as claimed in claim 1 or 2 is characterized in that, cylinder-bore axis is configured to and vehicle direct of travel almost parallel, and from this cylinder-bore axis direction, the relief opening of described cylinder head is configured to import passage side to described secondary air and tilts.
4, as each described vehicle internal-combustion engine in the claim 1 to 3, it is characterized in that, an ignition spark plug that is configured in described relief opening one side is arranged near the wind introducing port of advancing of the air-casing that is provided with on the described cylinder head, another ignition spark plug is arranged near the air outlet of described air-casing, described secondary air is imported channel setting near described air outlet.
5, vehicle internal-combustion engine as claimed in claim 4 is characterized in that, makes a described ignition spark plug than the more approaching described relief opening of another ignition spark plug.
6, a kind of vehicle internal-combustion engine, possess: be provided with suction port and relief opening cylinder head, be installed in two ignition spark plugs on this cylinder head, it is characterized in that, the ignition wire that assembles on described each ignition spark plug is treated to respectively and extends to the direction of leaving from described relief opening, avoids described relief opening.
7, vehicle internal-combustion engine as claimed in claim 6, it is characterized in that, make among described each ignition spark plug one than another more approaching described relief opening, the secondary air that disposes to described relief opening feeding secondary air in the side of the described ignition spark plug opposition side of described exhaust ports imports path.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006174046A JP4550018B2 (en) | 2006-06-23 | 2006-06-23 | Internal combustion engine for vehicles |
| JP174046/06 | 2006-06-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101092897A true CN101092897A (en) | 2007-12-26 |
| CN100582453C CN100582453C (en) | 2010-01-20 |
Family
ID=38991306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710112210A Expired - Fee Related CN100582453C (en) | 2006-06-23 | 2007-06-21 | Internal combustion engine for vehicle |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4550018B2 (en) |
| CN (1) | CN100582453C (en) |
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| CN102859342A (en) * | 2010-04-15 | 2013-01-02 | 五十铃自动车株式会社 | Exhaust sensor alignment structure |
| EP2599991A3 (en) * | 2011-11-30 | 2017-03-01 | Yamaha Hatsudoki Kabushiki Kaisha | Saddle riding type vehicle |
| CN111749831A (en) * | 2019-03-29 | 2020-10-09 | 本田技研工业株式会社 | Internal combustion engine |
| CN112814802A (en) * | 2020-11-16 | 2021-05-18 | 浙江春风动力股份有限公司 | Low-emission motorcycle |
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| JP5345405B2 (en) * | 2009-01-08 | 2013-11-20 | 本田技研工業株式会社 | Cylinder head cooling structure |
| JP5473133B2 (en) * | 2010-03-18 | 2014-04-16 | 本田技研工業株式会社 | Ignition system for saddle-ride type vehicles |
| JP5471689B2 (en) * | 2010-03-24 | 2014-04-16 | スズキ株式会社 | Secondary air supply device for motorcycles |
| JP5548547B2 (en) * | 2010-07-30 | 2014-07-16 | 本田技研工業株式会社 | Motorcycle |
| JP6044076B2 (en) * | 2011-03-29 | 2016-12-14 | 本田技研工業株式会社 | Oil cooling engine |
| CN104454215B (en) * | 2014-10-24 | 2017-05-31 | 重庆市合川区邓健萍摩托车配件加工厂 | A kind of integral type cylinder head of motorcycle that can effectively reduce dusty gas discharge |
| JP7494747B2 (en) * | 2021-01-28 | 2024-06-04 | スズキ株式会社 | Unit Swing Engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5247106A (en) * | 1975-10-13 | 1977-04-14 | Nissan Motor Co Ltd | Exhaust purifier of two pointignition engine |
| JP2555048Y2 (en) * | 1991-06-17 | 1997-11-19 | スズキ株式会社 | Secondary air introduction passage for engine exhaust purification |
| DE10212998A1 (en) * | 2002-03-22 | 2003-10-02 | Daimler Chrysler Ag | Internal combustion engine with direct injection |
| JP4244178B2 (en) * | 2003-09-26 | 2009-03-25 | 本田技研工業株式会社 | Cylinder head cooling air passage structure |
| CN2787845Y (en) * | 2005-03-17 | 2006-06-14 | 重庆宗申技术开发研究有限公司 | Integrated cylinder head for single-cylinder overhead motorcycle engine |
| CN2782955Y (en) * | 2005-03-18 | 2006-05-24 | 重庆宗申技术开发研究有限公司 | Junk head for double cylinder overhead split engine |
-
2006
- 2006-06-23 JP JP2006174046A patent/JP4550018B2/en not_active Expired - Fee Related
-
2007
- 2007-06-21 CN CN200710112210A patent/CN100582453C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102859342A (en) * | 2010-04-15 | 2013-01-02 | 五十铃自动车株式会社 | Exhaust sensor alignment structure |
| CN102859342B (en) * | 2010-04-15 | 2015-04-22 | 五十铃自动车株式会社 | Exhaust sensor alignment structure |
| EP2599991A3 (en) * | 2011-11-30 | 2017-03-01 | Yamaha Hatsudoki Kabushiki Kaisha | Saddle riding type vehicle |
| CN111749831A (en) * | 2019-03-29 | 2020-10-09 | 本田技研工业株式会社 | Internal combustion engine |
| CN112814802A (en) * | 2020-11-16 | 2021-05-18 | 浙江春风动力股份有限公司 | Low-emission motorcycle |
| CN112832919A (en) * | 2020-11-16 | 2021-05-25 | 浙江春风动力股份有限公司 | Motorcycle with low pollutant discharge |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2008002397A (en) | 2008-01-10 |
| JP4550018B2 (en) | 2010-09-22 |
| CN100582453C (en) | 2010-01-20 |
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