TW200303957A - Waterproof structure of motorcycle air filter - Google Patents

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

0) 0) 200303957 Narrow, description of the invention (the description of the invention should state: the technical field to which the invention belongs, the prior art, the content, the embodiments, and the drawings are briefly explained) [Technical Field] The present invention relates to waterproofing of locomotive air cleaners structure. [Prior art] For example, in a speed locomotive constructed with a rear suspension type engine, an air cleaner is mounted on the rear suspension type engine, and the opening is opened to the air inlet of the air cleaner The inhaled fresh air is purified by a cleaner element, and the fresh air is supplied to a carburetor or the like to form a mixed gas. The waterproof structure for preventing water from penetrating from the air inlet of the air cleaner. It is constructed by installing a waterproof wall at the rear end of the frame to block the water splashing from the rear wheel. The air inlet of the air cleaner is used. Opening laterally or downwardly, or covering the suction port itself with an outer cover. [Problems to be Solved by the Invention] In the conventional waterproof structure w which is provided with a waterproof wall for blocking water foam at the rear end of the frame member, water will flow along the frame body to the front of the vehicle body, staying near the air intake port, and renewing The problem that the air leaks into the air cleaner from the suction port together. Taxi 'open the air inlet of the air cleaner horizontally or downwardly, or by: 盍 covering the air intake Π itself in the conventional waterproof structure, there will be a problem of large air intake resistance and the full performance of the engine by thermal method . The present invention was developed by a developer in order to solve the above-mentioned problems. The purpose of λ is to provide a waterproof structure of a locomotive mm, which can reliably prevent water from intruding into the air cleaner, and at the same time, can reduce the suction resistance and improve the engine performance. [Solution to Problem] (2) 200303957

In order to achieve the above purpose, in the locomotive applying for the invention in the patent scope, the new air is introduced into the air in a clean state, and then the new air is supplied into the air. It is characterized by the aforementioned suction air cleaner μ A Wanguan road pivot is equipped with a water guide tube-shaped guide member 'through the guide member frosted * ^ After the text | difluorinated crying above the suction port. σσ 2 patent applications for patent office, i

′ Wherein the front end of the aforementioned guide member is located at a position of one side that is cleaner than the air, and the rear end of the continuous guide member is located at a position that is behind the air. Oxygen applies for the third invention of the full-time application, and the patent scope of the application is the first! In the present invention, ‘where viewed from the side’, the aforementioned guide member is installed on the side of the air inlet of the air cleaner and is inclined downward. ° I request the fourth invention in the scope of patent, which is patent application ㈣ or 3 inventions, 苴 life, +, cadaver, younger, and zhiΗ # in the side wall of the air cleaner: toward the center, in the suction There is formed between the air port and the rear end of the aforementioned guide member =

The pipe frame of the aqueduct-shaped guide member above the nipple is installed directly above the rolling port, the opening is the water spray splashed by the rear wheel, and VL ^ # pieces flow to the front of the car body. / σ 耆 管 耆 4 has a general principle, and it will also pass the air, main, and Λ 〇 through the guide member. Diluo that water, while the inhalation of milk from the mouth of the milk Θ is to protect the air of the dish to clean the air crying ... milk ... inside, as a result, the air cleaner uses ^ ± to prevent the water from penetrating the cover to cover the suction itself "Heart n-order" mouth, or by the structure of the outside body, so you can control the reduction of inhalation resistance -6- (3) (3) 200303957

Improve engine performance. According to the second invention filed by the application of the sigma month patent, since the guide member can be covered by the full length of the working gas / month net suction port, it is possible to more reliably prevent water from seeping into the air from the suction port. Cleaner. According to the third invention in the scope of the patent application, since the guide member is installed from the side so as to be inclined toward the reverse side of the air inlet of the air cleaner, the box is recovered by the guide member. It will flow to the suction port of the air cleaner and reach the suction port 'by @' to prevent water from entering the air cleaner from the suction port more surely. According to the fourth invention of the declared patent scope, even if the water recovered by the guide member drops from the rear end of the guide member to the side wall of the air cleaner, the water flow is prevented by the water stop wall in the direction of the money σ, which prevents it more reliably. Water seeps into the air cleaner from the suction port. [Embodiment] An embodiment of the present invention will be described below with reference to the drawings. Fig. 1 is a side view of a speed locomotive equipped with an air-purifying water structure related to the present invention, and Fig. 2 is a partial front cross-sectional view of the front portion of the speed locomotive. Of the composition. The head pipe 2 is located at the position of the upper part of the speed locomotive (the upper part of the front of the car body) shown in FIG. 4. The lower end of the steering shaft 3 is purely provided with a front fork 5 ', and the front wheel 6 is pivotally supported at the lower end of the front 5 in a freely rotatable manner. Moreover, the lower tube 7 extends from the aforementioned head tube 2 toward the rear of the vehicle body and diagonally below, Then bend and extend towards the vehicle body to be substantially horizontal, and branch off the left (4) (4) 200303957 right pair of rear support bars 8 on the way from the lower tube 7 and extend diagonally above the rear of the vehicle body. The head tube 2, the lower tube 7, and the like are made of a resin front cover 9, and the rear half of the cover 9 similarly constitutes a resin leg cover 10. Further, the handle 4 is provided with a front and a rear. A low-bed stepper (footrest) is installed between the two-seater seat 11, the ergonomic seat η, and the handle 4 = rear, the space below the stepper 12 is provided as a vehicle body mounting member. = Slot 13 〇 ”, and a rear-mounted engine 14 is mounted behind the above-mentioned footboard 12 as a power unit under the aforementioned seat 11. The rear suspension type engine 14 is arranged on the left side of the vehicle body, and it is formed by integrating a transmission case 16. The transmission case 16 contains an engine 15 as a driving source and a v-belt type (not shown). It is composed of an automatic transmission and a reduction mechanism, and the transmission case 16 extends from the left side of the vehicle body 15 to the rear of the vehicle body, and the rear wheel ⑽ is pivotally supported at the rear end. Then, the upper part of the transmission case 16 has air The cleaner 18 is an intake pipe extending from the air cleaner 18 toward the front of the vehicle body! 9 is connected to the intake system of the aforementioned engine 15 and a carbureation cry 20 is installed on the way. ° The mouth has the above structure and is suspended by a suspension device The engine 14 is interposed in a continuous structure 22 to support the engine suspension bracket 21 fixed to the rear support bar 8 in a freely swingable manner. The rear end is interposed with the rear wheel 17 and a shock absorber 23. Supported on the rear support bar 8. On the other hand, the lower part ㈣ of the vehicle body seat 覆盖 is covered by a resin body cover 24, and the above-mentioned rear suspension type engine inside the body cover 24 is opened above and opened on the upper side. The storage box 25 houses the front and rear mounting members and the connecting structure (5) (5) 20 0303957

Piece 27 and mounting g have been provided on the rear support bar 8. The storage box-like elongation ensures a large capacity by the full length of the seat 11, and the inside can simultaneously accommodate the half cap f f cover m as shown in the figure and the full cymbal cover H 2. Then, the aforementioned seat 丨 丨 is supported on the present phase 25, and the seat 丨 丨 is the front end of which is pivoted up and down with the hinge as a center = 'switch Keshu storage box 25. In addition, the left and right rear support bars 8 are provided with a connecting member 29 in addition to the aforementioned women's clothing member 26 and the connecting member 27, and the holding members 30 are attached to the mounting members 26 and 27. In the implementation of the two-speed-speed keda locomotive, the left side of the head tube 2 in the space surrounded by the aforementioned hood 9 and the leg shield 10 at the front of the vehicle body, as shown in FIG. 2, is equipped with A small-capacity auxiliary groove 31 is provided, and a battery 32 is arranged on the right side of the head pipe 2. Then, the flexible fuel hose 33 extending downward from the bottom of the auxiliary groove 31 is connected to the large-capacity main groove provided below the footboard 12. . Here, an oil supply port 34 is erected obliquely in the upper part of the front side of the auxiliary tank 31. The oil supply port 34 is covered with a removable tank cover 35. A funnel 36 is installed around the oil supply port 34 to surround the oil supply port 34. . The above-mentioned hopper 36 is for those who receive fuel gasoline that overflows from the fuel supply port when the oil is supplied. The overflow pipe 37 extends downward from the bottom. The lower end of the overflow pipe is in the lower part of the vehicle body in front of the main tank 13 and opens to the atmosphere. The supplementary hose 38 extends downward from the upper part of the auxiliary groove 31, and the supplementary soft part 38 is connected behind the can 39, which is arranged obliquely to the left of the main groove π arranged near the lower end of the aforementioned lower pipe 7 On the other hand, below the front portion of the seat 11, near the front end portion of the storage box 25 covered by the vehicle body cover 24, a fuel pump 42 is interposed with a support bar 200303957 (not shown).

⑹ = ::: Γjoining member 29. Then, the fuel pump makes the pulsation _II = system: the negative pressure hose " suck in the pressure from the fuel tank 13 through the fuel hose 44 through the fuel hose 44 through the suction pressure + 丄 土 餐 浦 42 The gasoline and the carburetor 20 are pressurized to form a mixture. … Once to the tank 39 is a device for separating the oil from the auxiliary tank 31 into gasoline and gas through the supplementary hose K. It is located at the lowermost part of the vehicle body: on the left side of the aforementioned fuel tank near the lower end of the lower pipe 7 Square, configured to incline downwards towards the body. Then, a gas hose 40 'extending from the front of the tank member 39 toward the front of the vehicle body and diagonally below is connected to the lower end of the overflow pipe 37, and the exhaust hose 41 leading from the rear of the tank member 39 extends toward the vehicle body toward the diagonal Above, this end is the aforementioned carburetor 20. The detailed structure of the water-proof structure of the air cleaner according to the present invention will be described here with reference to Figs. 3 to 6. Furthermore, Fig. 3 is a side view of the air cleaner part of the Sukoda locomotive, Fig. 4 is a cross-sectional view taken along line A_A in Fig. 3, Fig. 5 is a cross-sectional view taken along line B-B, and Fig. 6 is a perspective view of the air cleaner. As shown in FIG. 6, the suction port 18 a is opened in front of the aforementioned air purifier. As shown in FIG. 3, the suction port 18 a is connected to an suction duct 46 provided inside the air cleaner 18. The opening is inside the air cleaner 18 °. Furthermore, a cleaner element (not shown) is housed inside the air cleaner 18. Moreover, the aforementioned suction pipe 19 is connected to the inner side surface of the front end of the air cleaner 18. In this embodiment, as shown in FIG. 3, directly above the suction port 18a of the air cleaner 18 of the left rear support bar 8 is provided with a water pipe formed by rubber 200303957.

A U-shaped (refer to FIG. 5) guide member 47 covers the upper part of the air inlet 18a of the air cleaner 18 with the guide member 47. Here, the front end of the guide member 47 is located in front of the air inlet 18a of the air β cleaner 18, and the rear of the guide member 47 is located behind the air inlet 8a of the air cleaner 丨 8. Therefore, the guide The member 47 covers the entire length of the suction port 18a of the air cleaner 18 so as to extend over the entire length. Moreover, as shown in FIG. 5, the width dimension of the guide member 47 is not set to be larger than the width dimension of the suction port 18 a of the air cleaner 18. The V guide member 47 passes the full width of the suction port 18 a or more Way to cover. From the side, the guide member 47 is installed so as to be inclined downward toward the reverse side (rear of the vehicle body) of the air inlet of the air cleaner J 8. The installation structure of the guide member 47 will be described here. At the front end of the guide member 47, a notch-shaped connecting portion 47 & is partially formed, as shown in FIG. 4. The connecting portion 47 a is embedded in the rear support bar 8, and the periphery is fastened to the rear support bar by a band 48. The outer periphery of the rear portion of the guide member 47 is formed with a mounting portion 47b in a side view triangle, so that the protrusion 47e protruding from the inner surface of the upper end of the mounting portion 47b is inserted into the circular hole of the connecting member 26 (not (Illustrated), the rear portion of the guide member 47 is fixed to the connecting member 26. ~ In addition, as shown in FIG. 3, in the direction of the vehicle body on the outer wall of the aforementioned air cleaner 18 after the rain, the intake port 18a and the aforementioned Between the ends of the guide member, the strip-shaped water retaining wall 18b-body is formed to be inclined downward toward the front of the vehicle body. In this embodiment, 'the air guide pipe-shaped guide member above the suction port will be covered by the air cleaner. 47 The rear support bar 8 installed directly above the suction port ,, even if the water and other water rinsed by the rear wheel 17 flows along the rear support bar 8 -11- 200303957 ⑻ will flow to the front of the vehicle body. The guide member 47 receives the water and recovers the water. The bottom surface of the guide member 47 flows to the rear of the vehicle body, and drops from the rear end of the guide member 47 on the air cleaner 18. Then, at this time, the water stop wall formed on the outer side wall of the air cleaner 18 becomes To prevent the water dripping on the air cleaner 18 from flowing toward the suction port i8a, so the water from the suction port 18a is surely prevented from penetrating into the air cleaner 18. In this embodiment, since the guide member 47 is used to clean the air The full length and full width of the suction port 18a of the device 18 are covered, so that water from the suction port 18a is prevented from penetrating into the air cleaner more surely. As described above, according to the present embodiment, since it is reliably prevented Water seeps into the air cleaner 18 from the air inlet 18a of the air cleaner 18, thereby ensuring the high water resistance of the air cleaner 18. When the rear suspension engine 14 is started, the new air sucked in by the negative pressure of the engine 15 The air will be introduced into the air cleaner J 8 through the suction duct 46 through the suction port 18a, and the fresh air in the V inlet air cleaner 18 will be purified from the air cleaner through the cleaner element not shown in the figure. 8 Intake via suction tube 19 Then, in the carburetor 20, the fuel tank 42 supplies π oil and fresh air through the fuel pump 42 to mix to form a predetermined air-fuel ratio (a / f). It is supplied to the engine 5 for combustion. In this embodiment, it is not necessary to open the suction port 18a horizontally or downwardly to prevent water from penetrating into the air cleaner 18, or to cover it with a cover = lice mouth. The structure of 18a itself can realize the so-called direct intake, which can control the reduction of the intake resistance and achieve the improvement of engine performance. Furthermore, the above-mentioned present invention has specifically explained that it is suitable for a speed locomotive-12- 200303957

(9), but of course, the present invention is also applicable to any locomotive. [Effect of the invention] From the above description, it is learned that according to the present invention, after the fresh air is introduced into an air cleaner for purification in a locomotive, the fresh air is supplied to form a mixed air, and the air / month / contingent air intake port is directly above A water pipe-shaped guide member is installed in the official road frame. Because the guide member covers the air inlet of the air cleaner,

This can surely prevent water from penetrating the air cleaner, and at the same time, it can achieve the effect of reducing the suction resistance and improving the engine performance. [Brief Description of the Drawings] Fig. 1 is a side view of a speed locomotive. Fig. 2 is a partial front cross-sectional view of a speed locomotive. Fig. 3 is a side view of the air cleaner part of the Sukoda locomotive. Fig. 4 is a sectional view taken along the line A-A in Fig. 3. Fig. 5 is a sectional view taken along the line B-B in Fig. 3. Fig. 6 is a perspective view of an air cleaner.

[Description of Symbols in the Drawings] 1 Scooter (locomotive) 8 Rear support bar (pipe frame) 18 Air cleaner 18a Suction port 18b Water stop 47 Guide member • 13-

Claims (1)

200303957 Scope of application and patent application 1. A waterproof structure of an air cleaner for a locomotive. In the aforementioned locomotive, the fresh air is introduced into the air cleaner and purified, and the new air is supplied to form a mixed gas. The pipe frame member directly above the air inlet is provided with a water guiding pipe-shaped guide member, and the guide member covers the air inlet of the air cleaner above the air inlet. 2. For example, the waterproof structure of the air cleaner for locomotive in the scope of the patent application, wherein the front end of the guide member is located at a position higher than the air inlet of the air cleaner, and the rear end of the guide member is located at a position higher than the air cleaner. Position behind the suction port. 3. For the waterproof structure of an air cleaner for a locomotive such as the scope of application for item 1 or 2, in which the aforementioned guide member is installed to be inclined toward the reverse side of the air inlet of the air cleaner and downward from the side. 4. The waterproof structure of the air cleaner for locomotive if the scope of the patent application is item 1, 2, or 3, wherein the front and rear directions of the body of the side wall of the aforementioned air cleaner are 'in the suction port and the rear end of the aforementioned guide member' Water stop wall is formed between 0