CN102434335B - Intake device of internal combustion engine - Google Patents
Intake device of internal combustion engine Download PDFInfo
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- CN102434335B CN102434335B CN201110287489.1A CN201110287489A CN102434335B CN 102434335 B CN102434335 B CN 102434335B CN 201110287489 A CN201110287489 A CN 201110287489A CN 102434335 B CN102434335 B CN 102434335B
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- air inlet
- air
- inlet path
- combustion engine
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- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
The invention provides the intake device of an internal combustion engine, which comprises a plurality of air intake passages used for introducing air from an air filter into a throttle body. A connection supporting member (52) supported in an air cleaning box (44) comprises a first downstream air inlet passage part (61) and a second downstream air inlet passage part (62) used for communicating the flow outlet of a high-speed air intake passage (53) with the flow outlet of a low-speed air intake passage (54), and a confluence part used for converging the first downstream air inlet passage part (61) with the second downstream air inlet passage part (62). Through the connection supporting member (52), the high-speed air intake passage (53) and the low-speed air intake passage (54) are supported within an air cleaner (22).
Description
Technical field
The present invention relates to the air being imported by air-strainer to send into the air inlet system of the internal-combustion engine of internal-combustion engine.
Background technique
The air inlet system of known a kind of internal-combustion engine, the low speed air inlet path and the high speed air inlet path that are connected with air-strainer converge (with reference to patent documentation 1) at the upstream end of throttle valve body.
In the disclosed air inlet system of patent documentation 1, projection in low speed air inlet path and the high speed air inlet path projection plane on the axial direction of pipe with throttle valve is roughly the same, and low speed air inlet path is by being connected and converging with high speed air inlet path with the opening being formed on the sidewall of high speed air inlet path.Each air inlet path is connected with the opening being formed on air-strainer.
In this air inlet system, on high speed air inlet path, be provided with open and close valve, need to supply with the air inlet of high flow rate time, the open and close valve of high speed air inlet path is closed, only pass through low speed air inlet path to internal-combustion engine air supply.
Patent documentation 1:(Japan) JP 61-4821 communique
In the disclosed air inlet system of above-mentioned patent documentation 1, because making low speed air inlet path and high speed air inlet path, needs are supported on respectively the support unit of air-strainer, be therefore difficult to reduce number of components, reduce costs.And, owing to being provided with two openings on air-strainer, therefore increased the machining period of air-strainer.
And, in the time need to supplying with the air inlet of high flow rate, the open and close valve that must make high speed air inlet path close and only by low speed air inlet path to internal-combustion engine air supply, therefore open and close valve must be set on high speed air inlet path, thereby be difficult to reduce number of components, reduce costs.
Summary of the invention
In view of above technical problem, the object of the invention is to, a kind of multiple air inlet systems of the air being imported by air-strainer being sent into the internal-combustion engine of the air inlet path of throttle valve body that have are provided, and it can reduce quantity and the machining period of the required parts that are connected with multiple air inlet paths.
The air inlet system of the internal-combustion engine of the first invention comprises: air inflow adjusting device (21), and it comprises sends the air of supplying with from air-strainer (22) side into the inlet air pathway (37) of suction port (28) side of internal-combustion engine (10), the throttle valve (40) that described inlet air pathway (37) is opened and closed, air inlet path (53,54), it is multiple, one distolateral inflow entrance (57,60) at clean side (47) opening of described air-strainer (22), from another distolateral outflow opening (56,59), the air importing from described air-strainer (22) is sent into described air inflow adjusting device (21), multiple described air inlet paths (53, 54) inflow entrance (57, 60) aperture position is different respectively, multiple described air inlet paths (53, 54) outflow opening (56, 59) converge at the upstream side of described throttle valve (40), the air inlet system of described internal-combustion engine is characterised in that, comprise: support unit (52), it comprises: with multiple described air inlet paths (53, 54) each outflow opening (56, 59) the multiple downstream air inlet path portion (61 being communicated with, 62), make multiple described downstream air inlet path portion (61, 62) converge and will be from multiple described downstream air inlet path portion (61, 62) air is sent into the fluidic junction (63) of described air inflow adjusting device (21) side, by making described support unit (52) be supported on described air-strainer (22) by multiple described air inlet paths (53, 54) be supported in described air-strainer (22).
The air inlet system of internal-combustion engine of the second invention is characterised in that, multiple described air inlet paths (53,54) are integrally formed.
The air inlet system of the internal-combustion engine of the 3rd invention is characterised in that, described air-strainer (22) is divided into described clean side (47) and dirty survey (46) by member (48), multiple described air inlet paths (53,54) be arranged in the described clean side (47) of described air-strainer (22), not make each inflow entrance (57,60) in the face of described member (48).
The air inlet system of internal-combustion engine of the 4th invention is characterised in that, multiple described air inlet paths (53,54) are along the face setting of clean side (47) one sides of described member (48).
The air inlet system of the internal-combustion engine of the 5th invention is characterised in that, multiple described air inlet paths (53,54) there is respectively curved part (55,58), the curved part (55 of the arbitrary air inlet path in multiple described air inlet paths (53,54), 58) outer circumferential side, be provided with the curved part (55,58) of other air inlet paths along the curved part (55,58) of this arbitrary air inlet path.
The air inlet system of internal-combustion engine of the 6th invention is characterised in that, at least one in sectional area separately of multiple described air inlet paths (53,54) and pipe range is different.
The air inlet system of the internal-combustion engine of the 7th invention is characterised in that, multiple downstream air inlet path portions (61,62) distortion of described support unit (52), and its each downstream is positioned at desirable position.
The air inlet system of internal-combustion engine of the 8th invention is characterised in that, described support unit (52) can installing/dismounting, and described fluidic junction (63) set to the volume of regulation.
In view of above the second technical problem, the object of the invention is to, a kind of air inlet system of the internal-combustion engine with low speed air inlet path and high speed air inlet path is provided, it is without using open and close valve just can carry out swimmingly air inlet from low speed air inlet path, thereby can reduce number of components, reduce manufacture cost.
The air inlet system of the internal-combustion engine of the 9th invention comprises: air inflow adjusting device (21), and it comprises sends the air of supplying with from air-strainer (22) side into the inlet air pathway (37) of the tubulose of suction port (28) side of internal-combustion engine (10), the throttle valve (40) that described inlet air pathway (37) is opened and closed; High speed air inlet path (53), it sends the air being imported by described air-strainer (22) into described air inflow adjusting device (21); Low speed air inlet path (54), it sends the air being imported by described air-strainer (22) into described air inflow adjusting device (21), pipe range is greater than described high speed air inlet path (53), and diameter is less than described high speed air inlet path (53); described high speed air inlet path (53) and described low speed air inlet path (54) converge in the upstream of described throttle valve (21), the air inlet system of described internal-combustion engine is characterised in that, from axis (L2) direction of the interior inlet air pathway (37) of described air inflow adjusting device (21), the opening (68 of air inflow adjusting device (21) side of described high speed air inlet path (53) and described low speed air inlet path (54), 69) profile line (C1, C2) at least a portion in, the upper coincidence in projection plane (D1) in axis (L2) direction of described inlet air pathway (37), described high speed air inlet path (53) and described low speed air inlet path (54) are connected with described air inflow adjusting device (21), on projection plane (D1) in axis (L2) direction of described inlet air pathway (37), the imaginary line (L4) extending across the diametric(al) along described inlet air pathway (37), the central point (P1) of the opening (68) of air inflow adjusting device (1) side of described high speed air inlet path (53) is positioned at a side of described imaginary line (L4), the central point (P2) of the opening (69) of air inflow adjusting device (21) side of described low speed air inlet path (54) is positioned at the opposite side of described imaginary line (L4).
The air inlet system of the internal-combustion engine of the tenth invention is characterised in that, described throttle valve (40) is for being supported on the butterfly valve of running shaft (39), this running shaft (39) extends its axis (L3) direction in the diametric(al) of described inlet air pathway (37), from axis (L2) direction of described inlet air pathway (37), on projection plane (D1) in axis (L2) direction of described inlet air pathway (37), the axis (L3) of described running shaft (39) overlaps with the described imaginary line (L4) that the diametric(al) along described inlet air pathway (37) is extended, from axis (L2) direction of described inlet air pathway (37), across the axis (L3) of described running shaft (39), the central point (P1) of the opening (68) of air inflow adjusting device (21) side of described high speed air inlet path (53) is positioned at a side of described axis (L3), the central point (P2) of the opening (69) of air inflow adjusting device (21) side of described low speed air inlet path (54) is positioned at the opposite side of described axis (L3).
The air inlet system of the internal-combustion engine of the 11 invention is characterised in that, described butterfly valve (40) can only be towards a direction rotation centered by described running shaft (39), and the opening (69) of air inflow adjusting device (21) side of described low speed air inlet path (54) is positioned at the side near described butterfly valve (40) in the time that described butterfly valve (40) rotates.
The air inlet system of internal-combustion engine of the 12 invention is characterised in that, the pipeline (73) that extends to described air inflow adjusting device (21) from the fluidic junction (63) that described high speed air inlet path (53) and described low speed air inlet path (54) are converged is straight line shape.
The air inlet system of the internal-combustion engine of the 13 invention is characterised in that, axis (L2) direction along described inlet air pathway (37) when described butterfly valve (40) standard-sized sheet is extended, at the side and the opposite side that are positioned at described running shaft (39) across described running shaft (39), form and there is opening of the same area.
The air inlet system of the internal-combustion engine of the 14 invention is characterised in that, described fluidic junction (63) and described throttle valve (40) adjacency.
The air inlet system of internal-combustion engine of the 15 invention is characterised in that, the sectional area of described high speed air inlet path (53) is set as 1.3～1.8 times of sectional area of described low speed air inlet path (54).
According to the air inlet system of the internal-combustion engine of the first invention, even in the situation that being provided with multiple air inlet path, still can prevent from causing device to maximize because air inlet path is set in air-strainer, and can support air inlet path with a support unit, thereby minimizing number of components, the machining period of minimizing air-strainer.And, owing to thering is the different inlet air pathway of multiple aperture positions, therefore can prevent that air residual is in air-strainer, prevent because of the (Yin き Write body あ う that attracts each other) cause flow velocity to decline.
According to the air inlet system of the internal-combustion engine of the second invention, can reduce number of components and assemble man-hour.
According to the air inlet system of the internal-combustion engine of the 3rd invention, can prevent that the appearance of member is local dirty.
According to the air inlet system of the internal-combustion engine of the 4th invention, can utilize the planar surface portion of the member that area is larger to assign to arrange multiple air inlet paths, thereby prevent that air-strainer from maximizing.
According to the air inlet system of the internal-combustion engine of the 5th invention, can prevent that air inlet path from maximizing, and air inlet path is extended.
According to the air inlet system of the internal-combustion engine of the 6th invention, can make the air inlet path such as low speed air inlet path, high speed air inlet path corresponding with the output characteristics of motor.
According to the air inlet system of the internal-combustion engine of the 7th invention, can regulate by support unit the position relationship of this support unit and throttle valve.
According to the air inlet system of the internal-combustion engine of the 8th invention, can reduce noise, be easy to change engine output characteristics.,, by changing support unit according to purposes, can change characteristic.Specifically, noise can be reduced by enlarging volume, flow velocity can be kept by reducing volume.
According to the air inlet system of the internal-combustion engine of the 9th invention, in the time that throttle valve is opened, air from low speed air inlet path is imported internal combustion engine side from inlet air pathway straight line, now, from the air of high speed air inlet path similarly from inlet air pathway linear flow, thereby can reduce the impact on the air stream from low speed air inlet path of air stream from high speed air inlet path.Thus, without high speed air inlet path open and close valve, thereby can reduce number of components, and can carry out swimmingly air inlet from low speed air inlet path.
According to the air inlet system of internal-combustion engine of the tenth invention, follow the rotation of butterfly valve, can change the side and the flow speed characteristic of opposite side that are rotated in the inlet air pathway that axle separates, thereby can regulate from the flow velocity of the air of high speed air inlet path and the importing of low speed air inlet path.
According to the air inlet system of the internal-combustion engine of the 11 invention, from the running shaft direction of butterfly valve, when butterfly valve is opened, with respect to the air stream by importing from low speed air inlet path straight line, butterfly valve rolls tiltedly downstream from upstream side, air along the inclination of butterfly valve and flow to swimmingly downstream side, therefore can keep the high flow condition from the air of low speed air inlet path, thereby can carry out swimmingly air inlet.
According to the air inlet system of the internal-combustion engine of the 12 invention, can keep the flow velocity from the air of high speed air inlet path and low speed air inlet path.
According to the air inlet system of the internal-combustion engine of the 13 invention, can make to flow swimmingly together from the air of high speed air inlet path and low speed air inlet path, even in the time that high engine speeds is rotated, still can effectively utilize low speed air inlet path.
According to the air inlet system of the internal-combustion engine of the 14 invention, follow the switching of valve and make under degree that flow speed characteristic changes can effectively utilize, by shortening the distance between fluidic junction and throttle valve, can suitably regulate from the flow velocity of the air of high speed air inlet path and the importing of low speed air inlet path.
According to the air inlet system of the internal-combustion engine of the 15 invention, can reduce the resistance of low speed side, improve the flow velocity in low speed air inlet path.
Brief description of the drawings
Fig. 1 is the left view that the autobicycle of the air inlet system of first embodiment of the invention is installed.
Fig. 2 is the left view of the motor peripheral structure of this autobicycle.
Fig. 3 is the right elevation of the motor peripheral structure of this autobicycle.
Fig. 4 is the vertical profile diagram of the major component of the motor of this autobicycle.
Fig. 5 is the stereogram of the air-strainer of this autobicycle.
Fig. 6 is the left view of air-strainer.
Fig. 7 is the plan view of the air-strainer of the internal structure of explanation air-strainer.
Fig. 8 is by the sectional view of the X-X line of Fig. 7.
Fig. 9 is the stereogram that is connected support unit that air-strainer is connected with throttle valve body.
Figure 10 is the side view that connects support unit.
Figure 11 is by the sectional view of the Y-Y line of Fig. 9.
Figure 12 is and is connected high speed air inlet path that support unit is connected and the plan view of low speed air inlet path.
Figure 13 is the figure that the arrow Z direction from Figure 12 of connection support unit is seen.
Figure 14 is explanation throttle valve body and the figure of connection that is connected support unit.
Figure 15 is the figure that the axial direction of the inlet air pathway from throttle valve body of connection support unit is seen.
Figure 16 is the figure that explanation is supplied to the air stream in throttle valve body.
Figure 17 is the figure that represents the air-strainer internal structure of the air inlet system of second embodiment of the invention.
Figure 18 is the connection support unit of the second mode of execution and the side view of high speed air inlet path and low speed air inlet path.
Description of reference numerals
10 internal-combustion engines
21 throttle valve bodys (air inflow adjusting device)
22 air-strainer
28 suction ports
37 inlet air pathways
39 running shafts
40 butterfly valves (throttle valve)
46 dirty surveys
47 clean side
48 members
52 connect support unit (support unit)
53 high speed air inlet paths
54 low speed air inlet paths
56,59 outflow openings
57,60 inflow entrances
61 first downstream air inlet path portions (downstream air inlet path portion)
62 second downstream air inlet path portions (downstream air inlet path portion)
63 fluidic junction
73 streams (pipeline)
Embodiment
Below, embodiments of the present invention are described.Below each mode of execution of explanation is that the present invention is used in to autobicycle, and in the figure that below explanation is used, arrow FR represents vehicle front, and arrow LH represents vehicle left, and arrow UP represents vehicle top.
< the first mode of execution >
With reference to Fig. 1～Figure 16, the first mode of execution of the present invention is described.The autobicycle 1 of the device that present embodiment is installed shown in Fig. 1～Fig. 3 has by welding and waits the vehicle body frame 2 that makes the combination of multiple steel one.Be provided with at the front end of vehicle body frame 2 that to support steerably front wheel suspension be 3 head tube 4.Being that 3 bottom is rotatably mounted at front wheel suspension has a front-wheel 5, and the top that is 3 at front wheel suspension is fixed with and turns to 6.
Vehicle body frame 2 comprises: the main frame 7 extending to the oblique rear lower side from head tube 4 that the steel tubular goods that is rectangle by a section forms, at the seat rail 8 that extends to oblique back upper place from the rear end of main frame 7 branches into two-part and rearward extend keeping approximate horizontal state thereafter, in the bottom of main frame 7, rear side is provided with pivot plate 9.
In the front of pivot plate 9, i.e. the lower rear of main frame 7, is supported with air cooling single cylinder engine 10, is supported with the seat 11 of taking for driver above seat rail 8.Motor 10 comprises: the cover 14a of the opening of the cylinder block 13 that is supported on the crankcase 12 of vehicle body frame 2, forwards gives prominence to from crankcase 12, the cylinder head 14 that is arranged on cylinder block 13 front ends, closed cylinder lid 14.
The rear support of crankcase 12 is in pivot plate 9, and the upper support of crankcase 12 is in the engine lifting bracket 15 being arranged on main frame 7.Supporting engine 10 is the attitude of approximate horizontal state so that it keeps cylinder-bore axis L1.On the pivot plate 9 of the bottom of main frame 7 rear side, can swing up and down and be supported with rocking arm 16b via pivot 16a, be supported with freely trailing wheel 17 in the rotation of the rear portion of rocking arm 16b.
The front end that is connected with the outlet pipe 18 rearward extending on the bottom surface of cylinder head 14 is connected with the baffler 19 rearward extending on the right side of trailing wheel 17 on the rear end of outlet pipe 18.On the end face of cylinder head 14, be connected with suction tude 20, suction tude 20 is extended to front upper place and is connected with the downstream side of throttle valve body 21.The upstream side of throttle valve body 21 is connected with air-strainer 22.
Air-strainer 22 is arranged on the front upper place of motor 10, is supported on the bracket 23 being arranged on main frame 7.In figure, reference character 24 represents the resin carbody shell of coating gas cylinder body 13, cylinder head 14, air-strainer 22 and main frame 7 etc.
Fig. 4 shows the longitudinal section of motor 10, in the cylinder block 13 of motor 10, is reciprocally embedded with piston 25 to motion, is connected with one end of connecting rod 26 on piston 25, and the other end of connecting rod 26 and not shown bent axle are connected.In cylinder head 14, be formed with: in the face of the firing chamber 27 at the top of piston 25, at the suction port 28 of a side (end face) upper shed from the extended cylinder head 14 in firing chamber 27, at the relief opening 29 of another side (bottom surface) upper shed from the extended cylinder head 14 in firing chamber 27.
By suction valve 30, suction port 28 and firing chamber 27 are opened and closed, by outlet valve 31, relief opening 29 and firing chamber 27 are opened and closed.Make suction valve 30 on-off actions by the swing of air inlet side rocking arm 32, make outlet valve 31 on-off actions by the swing of exhaust side rocking arm 33.Air inlet side rocking arm 32 and exhaust side rocking arm 33 swing and are supported on freely in cylinder head 14.
By each rocking arm 32,33, in the space that suction valve 30 and outlet valve 31 surround, rotatably mounted have a camshaft 34.By the intake cam 35 being arranged on camshaft 34, air inlet side rocking arm 32 is swung, by the exhaust cam 36 being arranged on camshaft 34, exhaust side rocking arm 33 is swung, so that suction valve 30 and outlet valve 31 open and close.In addition, camshaft 34 rotates with not shown bent axle interlock.
On the end face opening of the cylinder head 14 of suction port 28, be connected with the lower ending opening of above-mentioned suction tude 20.In the upper end open of suction tude 20, be connected with throttle valve body 21.
Throttle valve body 21 comprises: the throttle valve body main body 38 with the inlet air pathway 37 of tubulose; For butterfly valve 40 that vent path 37 is opened and closed, it is rotatably supported in running shaft 39, and this running shaft 39 is to make it axially extended in the diametric(al) of circular inlet air pathway 37 at section; Fuel is injected into the fuel injection system 41 in butterfly valve 40 downstream sides of inlet air pathway 37.
Butterfly valve 40 is circular plate body.Butterfly valve 40 can only be towards a direction rotation centered by running shaft 39, is the state extending along the axis L2 direction of inlet air pathway 37 when standard-sized sheet, and a side that is formed at this running shaft 39 across running shaft 39 forms with opposite side the opening that area is identical.Fuel injection system 41 is fixedly attached to throttle valve body main body 38 under the state extending to front upper place, from fuel tank 42 to these fuel injection system 41 feed fuels.Fuel tank 42 is arranged on the below (with reference to Fig. 1) of seat 11.
From air-strainer 22 to throttle valve body 21 air supplies, carry fuel by the air of this supply, and be supplied in motor 10.Fig. 5～Fig. 8 shows air-strainer 22, and air-strainer 22 comprises: be supported on the bracket 23 being arranged on main frame 7 and make opening 43 (Fig. 7) towards the air filter case 44 in front, for the opening 43 of occluded air filter case 44 can installing/dismounting air cleaner casing 45, be that upstream side is that dirty side 46 is the member 48 of clean side 47 with downstream side by the spatial division being formed by air filter case 44 and air cleaner casing 45.
Air-strainer 22 is set, so that main frame 7 is positioned at the substantial middle in this air cleaner 22 width of the carbody direction below.Member 48 comprises: the member body 49 that the section being made up of non-woven fabric etc. is rectangle; For the framework 50 of fixed component main body 49.Air filter case 44 is seized framework 50 on both sides by the arms with air cleaner casing 45 and is made member 48 fixing.On air cleaner casing 45, be provided with the not shown admission line that makes dirty side 46 open to outside.By this admission line by the inside of outside air air amount filter cleaner 22.
Throttle valve body 21 is connected by the support unit 52 that is connected shown in Fig. 7 and Fig. 8 with air-strainer 22.On the air filter case 44 of clean side 47 sides that is positioned at air-strainer 22, be formed with towards lower opening and with the roughly chimeric opening of support unit 52 51 that is connected cylindraceous of being made by resin material.Connect the distolateral at clean side 47 inner openings of support unit 52, and be connected with the high speed air inlet path 53 being formed by tubular part and low speed air inlet path 54.Another distolateral the exposing to air-strainer 22 outsides that connects support unit 52, for example, as shown in Figure 5, be connected with the upstream side of throttle valve body 21.
Fig. 9～Figure 11 shows and connects support unit 52.Connecting support unit 52 comprises: the first downstream air inlet path portion 61 being communicated with high speed air inlet path 53, the second downstream air inlet path portion 62 being communicated with low speed air inlet path 54, the downstream side that makes this first downstream air inlet path portion 61 and the second downstream air inlet path portion 62 are converged and will send into the fluidic junction 63 of the throttle valve body 21 that is positioned at downstream side from the air of the first downstream air inlet path portion 61 and the second downstream air inlet path portion 62.
Be positioned on the peripheral part in the substantial middle region on the length direction that connects support unit 52, be formed with the telescoping groove 64 of ring-type, be formed at the opening 51 on air filter case 44 by telescoping groove 64 is embedded in, can make to connect support unit 52 and can be supported on air filter case 44 (with reference to Figure 11) installing/dismounting.Fluidic junction 63 comprises that the section of linearly extension is circular passage portion 70, and has the volume of regulation.
Connecting on the upstream side outer surface of support unit 52, be formed with end by making high speed air inlet path 53 and low speed air inlet path 54 and embed the Embedded Division 65 of its 8-shaped shape supporting.The first downstream air inlet path portion 61 has in the first upstream side opening 66, the second downstream air inlet path portions 62 of Embedded Division 65 inner openings and has the second upstream side opening 67 at Embedded Division 65 inner openings.High speed air inlet path 53 and low speed air inlet path 54 embed this Embedded Division 65 and are supported, and described Embedded Division 65 is communicated with high speed air inlet path 53 and low speed air inlet path 54.
Figure 12, Figure 13 show high speed air inlet path 53 and low speed air inlet path 54.All bodys for being formed by resin material of high speed air inlet path 53 and low speed air inlet path 54, high speed air inlet path 53 has the curved part 55 that is U-shaped bending, one end of curved part 55 is set as and the outflow opening 56 that is connected support unit 52 and is connected, and the other end is set as the inflow entrance 57 at clean side 47 openings.And low speed air inlet path 54 has the curved part 58 that is U-shaped bending, one end of curved part 58 is set as and the outflow opening 59 that is connected support unit 52 and is connected, and the other end is set as the inflow entrance 60 at clean side 47 inner openings.
High speed air inlet path 53 and low speed air inlet path 54 are adjacent to each other and are integrally formed, so that the curved part 58 of low speed air inlet path 54 is along the outer circumferential side of the curved part 55 of high speed air inlet path 53.The pipe range of low speed air inlet path 54 is greater than high speed air inlet path 53, and diameter is less than high speed air inlet path 53.Specifically, the pipe range of low speed air inlet path 54 is that 250mm, internal diameter are 12mm, and the pipe range of high speed air inlet path 53 is that 225mm, internal diameter are 15mm.In addition, this value is only an example, 1.3～1.8 times of the sectional area that the sectional area (opening area) that preferably makes high speed air inlet path 53 is low speed air inlet path 54.In the case of making like this sectional area of low speed air inlet path 54 be less than the sectional area of high speed air inlet path 53, can reduce the resistance of low speed side, improve the flow velocity in low speed air inlet path.
Return to Fig. 9～Figure 11, in connection support unit 52, the first upstream side opening 66 of the first downstream air inlet path portion 61 is communicated with the outflow opening 56 of high speed air inlet path 53, the second upstream side opening 67 of the second downstream air inlet path 62 is communicated with the outflow opening 59 of low speed air inlet path 54, and the diameter of the first upstream side opening 66 is greater than the diameter of the second upstream side opening 67.
With reference to Fig. 7, connect support unit 52 and be supported on air filter case 44, so that the first upstream side opening 66 is positioned at left side, the second upstream side opening 67 is positioned at right side, by making high speed air inlet path 53 and low speed air inlet path 54 embed Embedded Division 65, high speed air inlet path 53 and low speed air inlet path 54 is communicated with the first upstream side opening 66 and the second upstream side opening 67.
With reference to Fig. 6, Fig. 8 etc., in clean side 47, from the side, the high speed air inlet path 53 and the low speed air inlet path 54 that are supported by connection support unit 52 are fixedly installed along the back side of member 48 (member body 49).And, the upstream side of the curved part 58 of high speed air inlet path 54 bends, and forwards extend as shown in Figure 8, thereby guarantee pipe range, inflow entrance 57 separates from the inflow entrance 60 of low speed air inlet path 54, make the different position of the aperture position of inflow entrance 60 and the aperture position of inflow entrance 57, and the position of inflow entrance 60 is being set.
And high speed air inlet path 53 and low speed air inlet path 58 are fixedly installed in air-strainer 22, so that the inflow entrance 57 of high speed air inlet path 53 and the inflow entrance 58 of low speed air inlet path 54 are not faced the back side of member 48.Specifically, as shown in Figure 7, Figure 8, the inflow entrance 57 of high speed air inlet path 53 is chamfered, and towards inner side, front, the outflow opening 60 of low speed air inlet path 54 roughly downward.
High speed air inlet path 53 and low speed air inlet path 54 are sent into the air entering from inflow entrance 57 and 60 the first downstream air inlet path portion 61 and the second downstream air inlet path 62 that connect support unit 52 from outflow opening 56 and 59, thereafter, the first downstream air inlet path portion 61 and the second downstream air inlet path 62 converge, and air is sent into throttle valve body 21.
In the lump with reference to Fig. 7, Figure 10 and Figure 14 etc., in connection support unit 52, the first downstream air inlet path portion 61 and the second downstream air inlet path 62 converge after extending in the mode of side distortion towards downstream, arrange the first upstream side opening 66 and the second upstream side opening 67 left and right, and the first downstream side opening 68 of the first downstream air inlet path portion 61 and the second downstream side opening 69 of the second downstream air inlet path 62 are in tandem.The first downstream side opening 68 and the second downstream side opening 69 are with respect to the axial direction beveled of the passage portion 70 of fluidic junction 63.
With reference to Figure 14, in the fluidic junction 63 of connection support unit 52, in the downstream side of passage portion 70, be formed with the link embedding part 72 chimeric with being formed at flange 71 (Fig. 4) on the upstream side peripheral part of throttle valve body main body 38 of throttle valve body 21, be connected with throttle valve body 21 thereby make to connect support unit 52.That is, the fluidic junction 63 that connects support unit 52 does not link via any bindiny mechanism with throttle valve body 21, and the butterfly valve 40 in fluidic junction 63 and the throttle valve body 21 of connection support unit 52 is in adjacency state.
The internal diameter of the passage portion 70 of fluidic junction 63 is identical with the internal diameter of the upstream-side-end of the inlet air pathway 37 of throttle valve body 21, between fluidic junction 63 and inlet air pathway 37, is formed with along the stream 73 of the linearly extension of axis L2 direction.Owing to connecting the fluidic junction 63 and throttle valve body 21 adjacency of support unit 52, therefore the length of stream 73 is shorter.Thus, can make air flow into throttle valve body 21 from air-strainer 22.
Figure 15 shows the situation that the axis L2 direction that is the inlet air pathway 37 of throttle valve body 21 from stream 73 of support unit 52 is seen that connects.Below, be elaborated with the Placement of high speed air inlet path 53 and low speed air inlet path 54 to connecting support unit 52, from axis L2 direction, the profile line C1 of the first downstream side opening 68 and the second downstream side opening 69 and at least a portion of C2 are separated from one another, and under this state, on the projection plane D1 in the axis L2 of inlet air pathway 37 direction, overlap.
And, in Figure 15, project to the axis L3 that imaginary line L4 in axis L2 direction represents the running shaft 39 of the butterfly valve 40 shown in Figure 14.Utilize this imaginary line L4 to describe the position of the first downstream side opening 68 and the second downstream side opening 69,, from axis L2 direction, the center point P 1 of the first downstream side opening 68 is positioned at a side of this imaginary line L4, and the center point P 2 of the second downstream side opening 69 is positioned at the opposite side of this imaginary line L4.
And at this, as mentioned above, butterfly valve 40 can only be towards a direction rotation, under the state shown in Figure 14, butterfly valve 40 can only be rotated counterclockwise.According to the sense of rotation of this butterfly valve 40, setting to high speed air inlet path 53 and low speed air inlet path 54 describes,,, from the axis L2 direction of stream 73 (inlet air pathway 37), low speed air inlet path 54 is arranged on the side near butterfly valve 40 in the time that butterfly valve 40 rotates.
As mentioned above, the gas handling system of the autobicycle 1 of present embodiment comprises: throttle valve body 21, air-strainer 22, connection support unit 52, high speed air inlet path 53 and low speed air inlet path 54.With reference to Figure 16, under normal circumstances, the upstream side of butterfly valve 40 is malleation, downstream side is negative pressure (owing to producing attraction force when the air inlet), and in this gas handling system, butterfly valve 40 is opened, from the air of high speed air inlet path 53 and low speed air inlet path 54, as shown by arrows in FIG., linear flow enters stream 73 (passage portion 70, inlet air pathway 37).And, from the axle direction of the running shaft 39 of butterfly valve 40, when butterfly valve 40 is opened, across running shaft 39, in the stream of low speed air inlet path 54 sides, because butterfly valve 40 rolls tiltedly downstream from upstream side, therefore flowed into swimmingly downstream side by the air importing from low speed air inlet path 54 straight lines along the inclination of butterfly valve 40.And thereafter, the fuel that the air bearing passing through from butterfly valve 40 ejects from fuel injection system 41, is supplied to motor 10 inside from suction port 28.
On the other hand, in the gas handling system of this autobicycle 1, the aperture of butterfly valve 40 increases, and because the air from low speed air inlet path 54 and high speed air inlet path 53 both sides is all by throttle valve body 21, therefore can make motor 10 obtain enough air inflows.
In mode of execution as above, the air inlet system of internal-combustion engine comprises: throttle valve body 21, and it comprises sends the air of supplying with from air-strainer 22 sides into the inlet air pathway 37 of suction port 28 sides of internal-combustion engine 10, the butterfly valve 40 that this inlet air pathway 37 is opened and closed, high speed air inlet path 53 and low speed air inlet path 54, the distolateral inflow entrance 57,60 of one, at clean side 47 openings of air-strainer 22, is sent the air importing from air-strainer 22 into throttle valve body 21 from another distolateral outflow opening 56,59, multiple air inlet paths (53, 54) inflow entrance (57, 60) aperture position is different, the outflow opening 56 of high speed air inlet path 53 and the outflow opening 59 of low speed air inlet path 54 converge at the upstream side of butterfly valve 40, wherein, the air inlet system of this internal-combustion engine is provided with and connects support unit 52, this connection support unit 52 comprises: the each outflow opening 56 that makes high speed air inlet path 53 and low speed air inlet path 54, 59 the first downstream air inlet path portion 61 and the second downstream air inlet path portions 62 that are communicated with, this the first downstream air inlet path portion 61 and the second downstream air inlet path portion 62 are converged and will send into the fluidic junction 63 of throttle valve body 21 sides from the air of this first downstream air inlet path portion 61 and the second downstream air inlet path portion 62, by making this connection support unit 52 be supported on air-strainer 22, high speed air inlet path 53 and low speed air inlet path 54 are supported in air-strainer 22.
Therefore, by high speed air inlet path 53 and low speed air inlet path 54 are arranged in air-strainer 22, can maximize by anti-locking apparatus, owing to supporting high speed air inlet path 53 and low speed air inlet path 54 with a support unit, therefore can reduce number of components, reduce the machining period of air-strainer 22.And, owing to thering is the different high speed air inlet path 53 of multiple aperture positions and low speed air inlet path 54, therefore can prevent that air residual is in air-strainer 22, prevent from attracting each other and cause flow velocity decline.
And, in the present embodiment, because high speed air inlet path 53 and low speed air inlet path 54 are integrally formed, therefore can reduce number of components and assembling man-hour.And, because being divided into clean side 47 by member 48, air-strainer 22 surveys 46 with dirty, therefore high speed air inlet path 53 and low speed air inlet path 54 can be arranged in the clean side 47 of air-strainer 22, so that each inflow entrance 57,60 is not in the face of member 48.Thereby, can prevent that member 48 from occurring local dirty.
And high speed air inlet path 53 and low speed air inlet path 54 are along the face setting of clean side 47 sides of member 48.By utilizing like this planar surface portion of the member 48 that area is larger to assign to arrange high speed air inlet path 53 and low speed air inlet path 54, can prevent that air-strainer 22 from maximizing.
And in the present embodiment, high speed air inlet path 53 and low speed air inlet path 54 have respectively curved part 55,58, at the outer circumferential side of the curved part 55 of high speed air inlet path 53, be provided with high speed air inlet path 53 and low speed air inlet path 54 along the curved part 58 of low speed air inlet path 54.Thus, can prevent that air inlet path from maximizing, and guarantees the pipe range of air inlet path.
And, in connection support unit 52, the first downstream air inlet path portion 61 and 62 distortions of the second downstream side air inlet path portion, its each downstream is positioned at desirable position, by the distortion described above of the first downstream air inlet path portion 61 and the second downstream side air inlet path portion 62 is formed, can regulate by connecting support unit 52 position relationship of this first downstream air inlet path portion 61 and the second downstream side air inlet path portion 62 and butterfly valve 40.
And, due to connect support unit 52 can be from air filter case 44 installing/dismounting, its fluidic junction 63 is set as having the volume of regulation, therefore, can reduce noise, is easy to change the output characteristics of motor.That is, connect support unit 52 by changing according to purposes, can change characteristic.Specifically, can reduce noise by enlarging volume, maintain flow velocity by reducing volume.
< the second mode of execution >
Below, with reference to Figure 17, Figure 18, the second mode of execution of the present invention is described.Wherein, the structure identical with the first mode of execution is accompanied by same reference character, description thereof is omitted.
In the present embodiment shown in Figure 17, the high speed air inlet path 80 and the low speed air inlet path 81 that are arranged on clean side 47 sides of air-strainer 22 are parts independent of each other.On the opening downward that is formed at air filter case 44, be provided with and connect support unit 82, on connection support unit 82, be connected with high speed air inlet path 80 and low speed air inlet path 81.
As shown in figure 18, connecting support unit 82 comprises: is communicated with high speed air inlet path 80 and the first downstream air inlet path portion 83 of linearly extension, be communicated with low speed air inlet path 81 also linearly extension the second downstream air inlet path portion 84, make the downstream side of this first downstream air inlet path portion 82 and the second downstream air inlet path portion 83 converge and will send into the fluidic junction 85 of the throttle valve body 21 in downstream side from the air of the first downstream air inlet path portion 83 and the second downstream air inlet path portion 84.
Fluidic junction 85 comprises that the section of linearly extension is circular passage portion 86, the axial direction almost parallel of the axial direction of passage portion 86 and the first downstream air inlet path portion 83 and the second downstream air inlet path portion 84.On the downstream side of passage portion 86, be connected with the inlet air pathway 37 of throttle valve body 21.
Be positioned at the mode of rear side so that the opening of the upstream side of the first downstream air inlet path portion 83 is positioned at the opening of the upstream side of front side, the second downstream air inlet path portion 84, make to connect support unit 82 and be supported on air filter case 44.The high speed air inlet path 80 being connected with the opening of the upstream side of the first downstream air inlet path portion 83 is to upper left side bending, thereafter, towards lower opening, the low speed air inlet path 81 being connected with the opening of the upstream side of the second downstream air inlet path portion 84 is to upper right bending, towards lower opening.
In present embodiment as above, can obtain the effect identical with the first mode of execution.And, particularly, owing to connecting the first downstream air inlet path portion 82 and the 83 linearly extensions of the second downstream air inlet path portion of support unit 82, therefore maintain the better effects if of flow velocity.
And the air inlet system of motor 10 comprises: throttle valve body 21, it comprises sends the air of supplying with from air-strainer 22 sides into the inlet air pathway 37 of the tubulose of suction port 28 sides of internal-combustion engine 10, the butterfly valve 40 that this inlet air pathway 37 is opened and closed, high speed air inlet path 53, it sends the air being imported by air-strainer 22 into throttle valve body 21, low speed air inlet path 54, it sends the air being imported by air-strainer 22 into throttle valve body 21, and pipe range is greater than high speed air inlet path 53, and diameter is less than high speed air inlet path 53, high speed air inlet path 53 and low speed air inlet path 54 converge in the upstream of butterfly valve 40, in the air inlet system of this motor 10, from the axis L2 direction of the inlet air pathway 37 in throttle valve body 21, the opening (first of throttle valve body 21 sides of high speed air inlet path 53 and low speed air inlet path 54, the second downstream side opening 68, 69) profile line C1, at least a portion in C2, on projection plane D1 in the axis L2 of inlet air pathway 37 direction, overlap, high speed air inlet path 53 and low speed air inlet path 54 are connected with throttle valve body 21, in projection plane D1 in the axis L2 of inlet air pathway 37 direction, the imaginary line L4 extending across the diametric(al) along inlet air pathway 37, the center point P 1 of the first downstream side opening 68 of high speed air inlet path 53 is positioned at a side of this imaginary line L4, the center point P 2 of the second downstream side opening 69 of low speed air inlet path 54 is positioned at the opposite side of this imaginary line L4.
And, in the diametric(al) of inlet air pathway 37, butterfly valve 40 is supported on the running shaft 39 extending along axis L3 direction, from the axis L2 direction of inlet air pathway 37, on projection plane D1 in the axis L2 of inlet air pathway 37 direction, the axis L3 of running shaft 39 overlaps with the imaginary line L4 that the diametric(al) along inlet air pathway 37 is extended, from the axis L2 direction of inlet air pathway 37, across the axis L3 of running shaft 39, the center point P 1 of the first downstream side opening 68 of high speed air inlet path 53 is positioned at a side of this axis L3, the center point P 2 of the second downstream side opening 69 of low speed air inlet path 54 is positioned at the opposite side of this axial L3.
And butterfly valve 40 can only be towards a direction rotation centered by running shaft 39, the first downstream side opening 69 of low speed air inlet path 54 is arranged on the side near butterfly valve 40 in the time that butterfly valve 40 rotates.
Thus, butterfly valve 40 is opened, and is imported motor 10 sides, now from the air of low speed air inlet path 54 by straight line, due to the streamlined flow too of the air from high speed air inlet path 53, therefore can suppress the impact on the air stream from low speed air inlet path 54 of air stream from high speed air inlet path 53.Therefore,, without the open and close valve that high speed air inlet path 53 use are set, just can carry out air inlet from low speed air inlet path 53 swimmingly, thereby can reduce number of components.
And, due to the open and close valve that uses butterfly valve 40 as throttle valve body 21, can change and be rotated a side of the inlet air pathway 37 that axle 39 separates and the flow speed characteristic of opposite side by the rotation of butterfly valve 40, therefore, can regulate the flow velocity of the air importing from high speed air inlet path 53 and low speed air inlet path 54.
And, utilize above-mentioned characteristic, when the first downstream side opening 69 of low speed air inlet path 54 be arranged on to butterfly valve 40 rotate near a side of butterfly valve 40, from the axis L3 direction of the running shaft 39 of butterfly valve 40, in the time that butterfly valve 40 is opened, with respect to the air stream by importing from low speed air inlet path 54 straight lines, butterfly valve 40 rolls tiltedly downstream from upstream side, air is along the inclination of butterfly valve 40 and flow into swimmingly downstream side, therefore can maintain the high flow condition from the air of low speed air inlet path 54, thereby carry out swimmingly air inlet.
In addition, in the present embodiment, the stream 73 that extends to throttle valve body 21 from the fluidic junction 63 that high speed air inlet path 53 and low speed air inlet path 54 are converged, for straight line shape, therefore, can maintain the flow velocity from the air of high speed air inlet path 53 and low speed air inlet path 54.And the axis L2 direction along inlet air pathway 37 when butterfly valve 40 standard-sized sheet is extended, across running shaft 39, be positioned at these running shaft 39 1 sides and form with opposite side side the opening that area is identical.Thus, can make all to flow swimmingly from the air of high speed air inlet path 53 and low speed air inlet path 54, even in the time of motor 10 High Rotation Speed, still can effectively utilize low speed air inlet path 53.
And fluidic junction 63 arranges with butterfly valve 40 adjacency.Thus, follow the switching of valve and make under degree that flow speed characteristic changes can effectively utilize, by shortening the distance between fluidic junction 63 and butterfly valve 40, can suitably regulate the flow velocity of the air importing from high speed air inlet path 53 and low speed air inlet path 54.
Above, embodiments of the present invention are illustrated, but the present invention is not limited to above embodiment.For example, in the above-described embodiment, be illustrated with the structure of fuel injection system 41 butterfly valve 40 is set on throttle valve body 21, but the present invention is also applicable to the vehicle with vaporizer.And the present invention is not limited to autobicycle, and can be applicable to be provided with the various vehicles of internal-combustion engine.
Claims (14)
1. an air inlet system for internal-combustion engine, it comprises:
Air inflow adjusting device (21), it comprises sends the air of supplying with from air-strainer (22) side into the inlet air pathway (37) of suction port (28) side of internal-combustion engine (10), the throttle valve (40) that described inlet air pathway (37) is opened and closed;
Air inlet path (53,54), it is multiple, one distolateral inflow entrance (57,60) at clean side (47) opening of described air-strainer (22), from another distolateral outflow opening (56,59), the air being imported by described air-strainer (22) is sent into described air inflow adjusting device (21);
The aperture position of the inflow entrance (57,60) of multiple described air inlet paths (53,54) is different respectively, the outflow opening (56,59) of multiple described air inlet paths (53,54) converges at the upstream side of described throttle valve (40), the air inlet system of described internal-combustion engine is characterised in that, comprising:
Support unit (52), it comprises: with multiple described air inlet paths (53,54) each outflow opening (56,59) the multiple downstream air inlet path portion (61 being communicated with, 62), make multiple described downstream air inlet path portion (61,62) converge and will send into from the air of multiple described downstream air inlet path portions (61,62) fluidic junction (63) of described air inflow adjusting device (21) side
By making described support unit (52) be supported on described air-strainer (22), multiple described air inlet paths (53,54) are supported in described air-strainer (22),
Multiple described air inlet paths (53,54) there is respectively curved part (55,58), at multiple described air inlet paths (53,54) outer circumferential side of the curved part (55,58) of the arbitrary air inlet path in, along the curved part (55 of this arbitrary air inlet path, 58) be provided with the curved part (55,58) of other air inlet paths.
2. the air inlet system of internal-combustion engine according to claim 1, is characterized in that, multiple described air inlet paths (53,54) are integrally formed.
3. the air inlet system of internal-combustion engine according to claim 1 and 2, is characterized in that, described air-strainer (22) is divided into described clean side (47) and dirty survey (46) by member (48),
Multiple described air inlet paths (53,54) are arranged in the described clean side (47) of described air-strainer (22), not make each inflow entrance (57,60) in the face of described member (48).
4. the air inlet system of internal-combustion engine according to claim 3, is characterized in that, multiple described air inlet paths (53,54) are along the face setting of clean side (47) one sides of described member (48).
5. the air inlet system of internal-combustion engine according to claim 1 and 2, is characterized in that, at least one item in multiple described air inlet paths (53,54) sectional area and pipe range is separately different.
6. the air inlet system of internal-combustion engine according to claim 1 and 2, is characterized in that, multiple downstream air inlet path portions (61,62) distortion of described support unit (52), and its each downstream is positioned at desirable position.
7. the air inlet system of internal-combustion engine according to claim 1 and 2, is characterized in that, described support unit (52) can installing/dismounting, and described fluidic junction (63) is set to the volume of regulation.
8. an air inlet system for internal-combustion engine, it comprises:
Air inflow adjusting device (21), it comprises sends the air of supplying with from air-strainer (22) side into the inlet air pathway (37) of the tubulose of suction port (28) side of internal-combustion engine (10), the throttle valve (40) that described inlet air pathway (37) is opened and closed;
High speed air inlet path (53), it sends the air being imported by described air-strainer (22) into described air inflow adjusting device (21);
Low speed air inlet path (54), it sends the air being imported by described air-strainer (22) into described air inflow adjusting device (21), and pipe range is greater than described high speed air inlet path (53), and diameter is less than described high speed air inlet path (53);
Described high speed air inlet path (53) and described low speed air inlet path (54) converge in the upstream of described throttle valve (21), and the air inlet system of described internal-combustion engine is characterised in that,
From axis (L2) direction of the interior inlet air pathway (37) of described air inflow adjusting device (21), the opening (68 of air inflow adjusting device (21) side of described high speed air inlet path (53) and described low speed air inlet path (54), 69) profile line (C1, C2) at least a portion in, the upper coincidence in projection plane (D1) in axis (L2) direction of described inlet air pathway (37), described high speed air inlet path (53) and described low speed air inlet path (54) are connected with described air inflow adjusting device (21)
On projection plane (D1) in axis (L2) direction of described inlet air pathway (37), the imaginary line (L4) extending across the diametric(al) along described inlet air pathway (37), the central point (P1) of the opening (68) of air inflow adjusting device (1) side of described high speed air inlet path (53) is positioned at a side of described imaginary line (L4), and the central point (P2) of the opening (69) of air inflow adjusting device (21) side of described low speed air inlet path (54) is positioned at the opposite side of described imaginary line (L4).
9. the air inlet system of internal-combustion engine according to claim 8, it is characterized in that, described throttle valve (40) is for being supported on the butterfly valve of running shaft (39), and this running shaft (39) extends its axis (L3) direction in the diametric(al) of described inlet air pathway (37)
From axis (L2) direction of described inlet air pathway (37), on projection plane (D1) in axis (L2) direction of described inlet air pathway (37), the axis (L3) of described running shaft (39) overlaps with the described imaginary line (L4) that the diametric(al) along described inlet air pathway (37) is extended
From axis (L2) direction of described inlet air pathway (37), across the axis (L3) of described running shaft (39), the central point (P1) of the opening (68) of air inflow adjusting device (21) side of described high speed air inlet path (53) is positioned at a side of described axis (L3), and the central point (P2) of the opening (69) of air inflow adjusting device (21) side of described low speed air inlet path (54) is positioned at the opposite side of described axis (L3).
10. the air inlet system of internal-combustion engine according to claim 9, is characterized in that, described butterfly valve (40) can only be towards a direction rotation centered by described running shaft (39),
The opening (69) of air inflow adjusting device (21) side of described low speed air inlet path (54) is positioned at the side near described butterfly valve (40) in the time that described butterfly valve (40) rotates.
11. according to the air inlet system of the internal-combustion engine described in claim 9 or 10, it is characterized in that, the pipeline (73) that extends to described air inflow adjusting device (21) from the fluidic junction (63) that described high speed air inlet path (53) and described low speed air inlet path (54) are converged is straight line shape.
12. according to the air inlet system of the internal-combustion engine described in claim 9 or 10, it is characterized in that, axis (L2) direction along described inlet air pathway (37) when described butterfly valve (40) standard-sized sheet is extended, at the side and the opposite side that are positioned at described running shaft (39) across described running shaft (39), form and there is opening of the same area.
The air inlet system of 13. internal-combustion engines according to claim 11, is characterized in that, described fluidic junction (63) and described throttle valve (40) adjacency.
The air inlet system of the internal-combustion engine in 14. according to Claim 8～10 described in any one, is characterized in that, the sectional area of described high speed air inlet path (53) is set as 1.3～1.8 times of sectional area of described low speed air inlet path (54).
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
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| JP2010-216949 | 2010-09-28 | ||
| JP2010-216298 | 2010-09-28 | ||
| JP2010216298A JP5554672B2 (en) | 2010-09-28 | 2010-09-28 | Intake device for internal combustion engine |
| JP2010216949A JP5568427B2 (en) | 2010-09-28 | 2010-09-28 | Intake device for internal combustion engine |
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| CN102434335A CN102434335A (en) | 2012-05-02 |
| CN102434335B true CN102434335B (en) | 2014-10-29 |
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| CN102966473B (en) * | 2012-10-23 | 2014-10-29 | 安徽中鼎动力有限公司 | Intake manifold of spark ignition-type combustion engine |
| JP6625577B2 (en) * | 2017-02-15 | 2019-12-25 | 本田技研工業株式会社 | Air cleaner device |
| MY189937A (en) * | 2018-01-17 | 2022-03-22 | Honda Motor Co Ltd | Air cleaner |
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| US5655497A (en) * | 1995-09-11 | 1997-08-12 | Yamaha Hatsudoki Kabushiki Kaisha | Induction system for motorcycle |
| DE10213334A1 (en) * | 2002-03-25 | 2003-10-09 | Bastra Dipl Ing Otten Gmbh & C | Internal combustion engine for motor bikes, cars and lorries comprises a mixture-processing system, an air filter unit, and a controllable shut-off unit inserted between the inlet valve and the air filter unit |
| CN2846773Y (en) * | 2005-11-22 | 2006-12-13 | 三阳工业股份有限公司 | Negative pressure regulating type air inlet valve control mechanism for scooter vehicle engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03130543A (en) * | 1989-10-12 | 1991-06-04 | Fuji Heavy Ind Ltd | Intake device of engine |
| JP3494218B2 (en) * | 2000-08-08 | 2004-02-09 | 川崎重工業株式会社 | Variable intake path for engine |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5655497A (en) * | 1995-09-11 | 1997-08-12 | Yamaha Hatsudoki Kabushiki Kaisha | Induction system for motorcycle |
| DE10213334A1 (en) * | 2002-03-25 | 2003-10-09 | Bastra Dipl Ing Otten Gmbh & C | Internal combustion engine for motor bikes, cars and lorries comprises a mixture-processing system, an air filter unit, and a controllable shut-off unit inserted between the inlet valve and the air filter unit |
| CN2846773Y (en) * | 2005-11-22 | 2006-12-13 | 三阳工业股份有限公司 | Negative pressure regulating type air inlet valve control mechanism for scooter vehicle engine |
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| JP平3-130543A 1991.06.04 |
| JP特开2002-54444A 2002.02.20 |
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