CN1429983A - Water-proof structure of air filter of two-wheel motorcycle - Google Patents

Water-proof structure of air filter of two-wheel motorcycle Download PDF

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Publication number
CN1429983A
CN1429983A CN 02158680 CN02158680A CN1429983A CN 1429983 A CN1429983 A CN 1429983A CN 02158680 CN02158680 CN 02158680 CN 02158680 A CN02158680 A CN 02158680A CN 1429983 A CN1429983 A CN 1429983A
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CN
China
Prior art keywords
air
strainer
suction port
guide member
water
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Granted
Application number
CN 02158680
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Chinese (zh)
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CN1226534C (en
Inventor
吹田善一
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yamaha Motor Co Ltd
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Yamaha Motor Co Ltd
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Publication date
Application filed by Yamaha Motor Co Ltd filed Critical Yamaha Motor Co Ltd
Publication of CN1429983A publication Critical patent/CN1429983A/en
Application granted granted Critical
Publication of CN1226534C publication Critical patent/CN1226534C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

This invention provides a waterproof structure of a motorcycle air filter to positively prevent the invasion of the water into an air filter while reducing inhalation resistance to thereby enhance engine performance. In a motorcycle, after purifying fresh air is introduced to the air filer 18, the fresh air is supplied to form a mixed flow. On a rear support (pipe frame) 8 provided above an air inlet 18a of the air filter 18 is mounted with a water gutter 47, such that the water gutter 47 covers above the air inlet 18a of the air filter 18. According to this invention, even if water flows to the front of the motorcycle along the rear support 8, this water drips into the water gutter 47 without being sucked into the air inlet 18a of the air filter 18 so as to ensure high waterproof characteristic of the air filter 18. In addition, it is not necessary to open the inlet 18a towards the side or downwards in order to prevent the invasion of the water to the air filter 18. The outer cover covers the air inlet 18a itself to reduce inhalation resistance low and to improve engine performance.

Description

The waterproof construction of the air-strainer of motor bike
Technical field
The present invention relates to the waterproof construction of the air-strainer of motor bike.
Background technique
For example, in the pedal-type two-wheel motorcycle that is mounted with the one oscillating engine, on the one oscillating engine, air-strainer is installed, ambient air be inhaled into the suction port that is opened on the air-strainer and by after the air cleaner cartridge for formation mixed gas use in Carburetor etc.
As preventing from the waterproof construction of the suction port water inlet of air filtering gas, in the prior art, or adopt and bulkhead etc. to be installed blocking the structure of the spray of kicking up because of the rotation of trailing wheel in the vehicle frame rear end, or adopt suction port with air-strainer to be opened in laterally or below or with the structure of lid covering suction port self.
Summary of the invention
Yet, employing is installed bulkhead etc. to block the waterproof construction of the spray of kicking up because of the rotation of trailing wheel in the vehicle frame rear end, there is such problem, promptly, the water that flow to car body the place ahead along vehicle frame can drench around the suction port of air-strainer, and enters in the air-strainer from suction port with ambient air.
In addition, adopt suction port with air-strainer to be opened in laterally or below or cover the waterproof construction of suction port self, have the intake resistance increase, can not give full play to the problem of the performance of motor with lid.
The present invention finishes in view of the above problems.The waterproof construction of the air-strainer of the motor bike that its purpose is to provide such: can prevent that conscientiously sealing enters air-strainer, can seek to reduce simultaneously intake resistance again, improve engine performance.
For reaching above-mentioned purpose, the air-strainer of the motor bike of the present invention's first scheme imports air-strainer with ambient air and purifies afterwards and uses for forming mixed gas, it is characterized by: the guide member of mounting groove shape on the tubulose vehicle frame above the suction port of described air-strainer, and make this guide member cover the top of the suction port of air-strainer.
The feature of alternative plan of the present invention is to make the front end of the described guide member in the invention of first scheme reach the place ahead of the suction port of air-strainer, and the rear end of this guide member reaches the rear of the suction port of air-strainer.
The feature of third party's case of the present invention be with first or the invention of alternative plan in described guide member install with the form that an opposite side direction that is in side-looking towards the suction port of air-strainer has a down dip.
The feature of the cubic case of the present invention is on the fore-and-aft direction of car body of sidewall of the described guide member in the invention of first, second or third party's case, is formed with the sealing wall between the rear end of suction port and guide member.
Therefore, invention according to first scheme, because the groove shape guide member of the top of the suction port of covering air-strainer is installed on the tubulose vehicle frame of suction port top, so, even spray of kicking up because of the rotation of trailing wheel etc. flows to car body the place ahead along the tubulose vehicle frame, this water also can and drip by the income guide member, and can not enter air-strainer inside from the suction port of air-strainer, and its result can guarantee that air-strainer has high water-proof performance.In addition, owing to will suction port be opened in laterally or the below enters air-strainer to prevent water, or adopt the structure that covers suction port self by lid, so can seek to reduce intake resistance, improve engine performance.
According to the invention of alternative plan, because guide member covers it with the scope of the total length of the suction port that surpasses air-strainer, so, can prevent more effectively that sealing enters air-strainer from this suction port.
Invention according to third party's case, because guide member is installed with the form that an opposite side direction that is in side-looking towards the suction port of air-strainer has a down dip, an opposite side of the current direction suction port of income guide member, and do not arrive suction port, so, can prevent more effectively that sealing enters air-strainer from this suction port.
Invention according to cubic case, even the water of income guide member drops onto on the sidewall of air-strainer from the rear end of guide member, also, can prevent more effectively that sealing enters air-strainer from this suction port because the sealing wall stops this water to flow towards the suction port direction.
Description of drawings
Fig. 1 is the side view of pedal-type two-wheel motorcycle.
Fig. 2 is the plan view of the part section of pedal-type two-wheel motorcycle.
Fig. 3 is the side view of the air-strainer part of pedal-type two-wheel motorcycle.
Fig. 4 is the A-A line sectional drawing of Fig. 3.
Fig. 5 is the B-B line sectional drawing of Fig. 3.
Fig. 6 is the stereogram of air-strainer.
Embodiment
Below based on the description of drawings embodiments of the present invention.
Fig. 1 is the side view of pedal-type two-wheel motorcycle that is equipped with the waterproof construction of air-strainer of the present invention, and Fig. 2 is the anterior schematic partial sectional view of this pedal-type two-wheel motorcycle.Below probably introduce the formation of illustrated pedal-type two-wheel motorcycle.
Vertical tube of front fork 2 is positioned at the top, car body the place ahead of pedal-type two-wheel motorcycle shown in Figure 11, inserts with freely rotating in this vertical tube of front fork 2 and is installed with steering column 3.In addition, the upper end of this steering column 3 is equipped with bogie car 4, and the lower end of this steering column 3 links to each other with front fork 5, and front-wheel 6 pivot with freely rotating props up in the underpart of this front fork 5.
In addition, down tube 7 is from described vertical tube of front fork 2, earlier towards the rear vehicle direction be tilted to down extend after, bending and be approximate horizontal state ground towards the car body rear and extend is again told pairing left and right rear pole 8 midway towards the rear vehicle extension setting up of tilting from this down tube 7.
The described vertical tube of front fork 2 of Vehicular body front, down tube 7 etc. are covered by resinous front truck cover 9, and the latter half of formation of this front truck cover 9 is resinous leg protection cover 10 equally.
And, at described bogie car 4 rear is provided with serially connected vehicle seat 11, between this vehicle seat 11 and bogie car are 4, be provided with low desk-top pedal position 12.And in the space below this pedal position 12, dispose main fuel reservoir 13 as the car body installation component.
In addition, be arranged at the rear of described pedal position 12, the below of described vehicle seat 11 as the one oscillating engine 14 of power plant.
Described one oscillating engine 14 is disposed at the left side of car body, it will be by will be integrated and constitute as the motor 15 of driving source and transmission case 16, transmission case 16 wherein is made of not shown built-in V-type belt automatic speed variator and reducing gear, it stretches to the car body rear from the car body left side of motor 15, and trailing wheel 17 has been propped up in its rear end pivot with freely rotating.The top of transmission case 16 is equipped with air-strainer 18, and the suction tude 19 of extending to car body the place ahead from this air-strainer 18 is connected with the gas handling system of described motor 15, and it is provided with Carburetor 20 midway.
One oscillating engine 14 with above structure swings up and down via linkage mechanism 22 and is bearing in freely on the engine suspension support 21 that is fixed in described rear pole 8, and its rear end is supported on rear pole 8 with trailing wheel 17 via rear shock absorber 23.
On the other hand, covering by resin system car body cover 24 of car body at the position of vehicle seat below 11, and, above the described one oscillating engine 14 in this car body cover 24, dispose the trunk 25 of upper surface open, it is installed on the rear pole 8 via the installation component 26 and the cross member 27 of front and back.This trunk 25 traverse vehicle seat 11 endlong, long extend longways, guarantee that it has big capacity, its inside can be accommodated hemisphere helmet H1 and full screening formula helmet H2 as shown in the figure simultaneously.And, being supported with vehicle seat 11 on this trunk 25, vehicle seat 11 is that turning down comes the described trunk 25 of switch on the center with the hinge 28 of its front end.In addition, about rear pole 8 on, except described installation component 26 and cross member 27, also set up cross member 29, and on installation component 26 and cross member 27, bale handle 30 be installed.
In the space that the described front truck cover 9 and the leg protection cover 10 by Vehicular body front of the pedal-type two-wheel motorcycle 1 in the present embodiment surrounds, left side at described vertical tube of front fork 2, as shown in Figure 2, dispose the primary fuel case 31 of small capacity, on the right side of described vertical tube of front fork 2, dispose storage battery 32.
The flexible fuel hose 33 that extends downwards from the bottom of described primary fuel case 31 is connected on the described jumbo main fuel reservoir 13 that is disposed at pedal position 12 belows.Here, the rider of primary fuel case 31 nearby a side upper angled stand and be provided with oil-feed port 34, be coated with detachable case lid 35 on this oil-feed port 34, around this oil-feed port 34, surround these oil-feed port 34 ground and be provided with fuel oil receiving portion 36.
The fuel oil (gasoline) that overflows from oil-feed port when described fuel oil receiving portion 36 is used to accept fuel feeding, spill pipe 37 extends towards the below from its bottom, the lower end of this spill pipe 37 at the body bottom section in the place ahead of main fuel reservoir 13 to the atmosphere opening.
Air induction hose 38 extends towards the below from the top of primary fuel case 31, and this air induction hose 38 is connected in the rear surface of the purifier 39 that is configured in described main fuel reservoir 13 left side sides obliquely.
On the other hand, near the front end of described trunk 25 vehicle seat 11 lower front, that cover by car cover 24, fuel pump 42 installations are disposed at described cross member 29 by not shown carriage.On this fuel pump 42, be connected with from the extended negative pressure flexible pipe 43 of the gas handling system of motor 15, this fuel pump 42 is by the pulsed drive of air inlet air pressure, attract fuel oil and this fuel oil is boosted through fuel hose 44 from main fuel reservoir 13, with the described Carburetor 20 of this fuel delivery, be used to form mixed gas through fuel hose 45.
Here, purifier 39 will be for being separated into the device of fuel oil and air from the fuel oil-gas that primary fuel case 31 imports by air induction hose 38, this purifier 39 is at the foot of car body, that is the nearby left side side of the described main fuel reservoir 13 of the configuration tiltedly configuration that dips down towards car body the place ahead of the lower end of aforesaid down tube 7.
And, be connected in the underpart of described spill pipe 37 from the front surface of this purifier 39 to the tilt air hose 40 that down extends of car body the place ahead, the exhaust hose 41 of deriving from the rear surface of this purifier 39 tilts along the car body direction and up extends, and its end is connected in described Carburetor 20.
Here, describe air-strainer water proof structure of the present invention in detail based on Fig. 3-Fig. 6.Fig. 3 is the side view of the air-strainer part of pedal-type two-wheel motorcycle, and Fig. 4 is the A-A line sectional view of Fig. 3, and Fig. 5 is the B-B line sectional view of Fig. 3, and Fig. 6 is the stereogram of air-strainer.
As shown in Figure 6, have suction port 18a on the front surface of described air-strainer 18, as shown in Figure 3, this suction port 18a links to each other with air inlet duct 46 in being configured in air-strainer 18, and this air inlet duct 46 is towards air-strainer 18 inner openings.In addition, contain not shown air cleaner cartridge in the air-strainer 18.Be connected with described suction tude 19 on the front end inner side surface of air-strainer 18.
In the present embodiment, as shown in Figure 3, the position of the suction port 18a top that is positioned at air-strainer 18 of the rear pole 8 in left side is equipped with by the guide member 47 of rubber with groove shape (with reference to Fig. 5) moulding, and this guide member 47 covers the top of the suction port 18a of air-strainer 18.At this, the front end of guide member 47 reaches the place ahead of the suction port 18a of air-strainer 18, the rear end of this guide member 47 reaches the rear of the suction port 18a of air-strainer 18, and therefore, guide member 47 covers it with the scope of the total length of the suction port 18a that surpasses air-strainer 18.And as shown in Figure 5, the width dimensions of guide member 47 is set greatlyyer than the width dimensions of the suction port 18a of air-strainer 18, makes suction port 18a be directed to member 47 and covers with the scope that surpasses its overall width.
In addition, guide member 47 tilts towards the opposition side (car body rear) of the suction port of air-strainer 18 in side-looking and down installs.
Below, the mounting structure of guide member 47 is described.
The front end of guide member 47 is formed with annulus 47a, and is jagged on the part of this annulus 47a, and as shown in Figures 3 and 4, this annulus 47a is embedded on the rear pole 8, around it by tightening and be fixed in the periphery of rear pole 8 with 48.In addition, be formed with side-looking on the external rear face of guide member 47 and be the assembly department 47b of triangular shape, the protruding 47c that is arranged at highlightedly on the upper end internal surface of this assembly department 47b embeds the circular hole (not shown) that forms on the described installation component 26, whereby, installation component 26 is fixed at the rear portion of guide member 47.
On the other hand, as shown in Figure 3, between the rear end of suction port 18a on the fore-and-aft direction of the car body of the outer side wall of described air-strainer 18 and described guide member 47, the sealing wall 18b that dips down and tiltedly be formed with rib-like towards car body the place ahead.
According to present embodiment, because the groove shape guide member 47 of the top of the suction port 18a of covering air-strainer 18 is installed on the rear pole 8 of suction port 18a top, even the water of spray of being kicked up by the rotation of trailing wheel 17 etc. flows to car body the place ahead along rear pole 8, this water also can be taken in the guide member 47 of groove shape, and mobile along the bottom surface of the guide member 47 that tilts to the car body rear, finally be dropped on the air-strainer from these guide member 47 rear ends.In this case, drop onto water on the air-strainer 18 is subjected to being formed at the outer side wall of air-strainer 18 towards suction port 18a direction the mobile prevention of described sealing wall 18b, therefore, can prevent conscientiously that sealing enters air-strainer 18 from suction port 18a.
In addition, in the present embodiment,, can prevent more effectively that sealing enters air-strainer 18 from suction port 18a because the suction port 18a of air-strainer is directed to member 47 coverings with the scope ground that surpasses its total length and beam overall.
As mentioned above, can prevent conscientiously that according to present embodiment sealing enters air-strainer 18 inside from the suction port 18a of air-strainer 18, has high water-proof performance so guarantee air-strainer 18.
In case one oscillating engine 14 entrys into service, ambient air will launched machine 15 air-intake negative-pressure attract to be imported within the air-strainer 18 via air inlet duct 46 from suction port 18a, then, by filtering, be imported into Carburetor 20 from air-strainer 18 via suction tude 19 by not shown air cleaner cartridge again.In Carburetor 20, be fed to the gasoline of fuel pump 42 and the air mixing that is cleaned by main fuel reservoir 13, form the mixed gas of specifying air fuel ratio (A/F), this mixed gas is fed to motor 15 for burning.
In the present embodiment, owing to needn't rely on laterally or suction port 18a is offered in the below, perhaps adopt by lid, both can realize so-called direct air inlet, can seek to reduce intake resistance again, improve engine performance the structure that suction port 18a self covers.
In addition, specified more than that still, the present invention goes for other any one motor bikes equally with the mode of the invention process in pedal-type two-wheel motorcycle.
Can understand by above-mentioned explanation, according to the present invention, in the motor bike that after ambient air is imported air filtering gas and filtering, uses for the formation mixed gas, mounting groove shape guide member on the tubulose vehicle frame above the suction port of described air-strainer, because this tubular member covers the top of the suction port of air-strainer, so, can prevent that conscientiously sealing enters air-strainer, simultaneously, has the effect that to seek to reduce intake resistance, improve engine performance.

Claims (4)

1. the waterproof construction of the air-strainer of a motor bike, ambient air is imported air-strainer also to be purified afterwards for forming the mixed gas use, it is characterized by: the guide member of mounting groove shape on the tubulose vehicle frame above the suction port of described air-strainer, and make this guide member cover the top of the suction port of air-strainer.
2. the waterproof construction of the air-strainer of motor bike as claimed in claim 1, it is characterized by: make the front end of described guide member reach the place ahead of the suction port of air-strainer, the rear end of this guide member reaches the rear of the suction port of air-strainer.
3. the waterproof construction of the air-strainer of motor bike as claimed in claim 1 or 2 is characterized by: described guide member is installed with the form that an opposite side direction that is in side-looking towards the suction port of air-strainer has a down dip.
4. as the waterproof construction of the air-strainer of claim 1,2 or 3 described motor bikes, it is characterized by: on the fore-and-aft direction of the car body of the side walls of described guide member, between the rear end of suction port and guide member, be formed with the sealing wall.
CN 02158680 2001-12-20 2002-12-18 Water-proof structure of air filter of two-wheel motorcycle Expired - Fee Related CN1226534C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP387382/2001 2001-12-20
JP2001387382A JP3978336B2 (en) 2001-12-20 2001-12-20 Air cleaner waterproof structure for motorcycles

Publications (2)

Publication Number Publication Date
CN1429983A true CN1429983A (en) 2003-07-16
CN1226534C CN1226534C (en) 2005-11-09

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CN 02158680 Expired - Fee Related CN1226534C (en) 2001-12-20 2002-12-18 Water-proof structure of air filter of two-wheel motorcycle

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JP (1) JP3978336B2 (en)
CN (1) CN1226534C (en)
TW (1) TW585968B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101612502B (en) * 2009-07-22 2011-05-04 力帆实业(集团)股份有限公司 Water prevention and noise reduction air filter
CN101058292B (en) * 2006-04-20 2011-08-24 本田技研工业株式会社 Front vehicle body structure
CN101397958B (en) * 2007-09-28 2011-12-21 雅马哈发动机株式会社 Air cleaner for automatic cart
CN101570133B (en) * 2008-04-30 2012-10-31 雅马哈发动机株式会社 Drain structure of air cleaner for motorcycle

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2309423T3 (en) * 2004-07-19 2008-12-16 Kwang Yang Motor Co., Ltd. AIR FILTER PROVISION FOR MOTORCYCLES.
JP2021133758A (en) * 2020-02-26 2021-09-13 ヤマハ発動機株式会社 Saddle-riding type vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101058292B (en) * 2006-04-20 2011-08-24 本田技研工业株式会社 Front vehicle body structure
CN101397958B (en) * 2007-09-28 2011-12-21 雅马哈发动机株式会社 Air cleaner for automatic cart
CN101570133B (en) * 2008-04-30 2012-10-31 雅马哈发动机株式会社 Drain structure of air cleaner for motorcycle
CN101612502B (en) * 2009-07-22 2011-05-04 力帆实业(集团)股份有限公司 Water prevention and noise reduction air filter

Also Published As

Publication number Publication date
JP2003182675A (en) 2003-07-03
CN1226534C (en) 2005-11-09
TW585968B (en) 2004-05-01
TW200303957A (en) 2003-09-16
JP3978336B2 (en) 2007-09-19

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