CN104500284A - Air cleaner element positioning structure for motorcycles - Google Patents

Abstract

The utility model discloses an air cleaner element positioning structure for motorcycles. A front cavity and a rear cavity are formed in a shell, and an air inlet pipe (3) is arranged on the front wall at the upper end of the front cavity of the shell. The rear cavity of the shell is divided into an upper expansion chamber (A) and a lower air outlet chamber (B) through a filter element (9), and the filter element (9) is supported by the upper end of the peripheral side wall of the air outlet chamber (B) and positioned in a positioning frame (11). The lower end of the positioning frame (11) is inlaid in an adaption slot in the upper end of the peripheral side wall of the air outlet chamber (B). The bottom wall of the air outlet chamber (B) is a slope which is low in the front part and high in the rear part, and an air outlet pipe (4) is arranged under the rear part of the air outlet chamber (B) and is arc-shaped. The upper end of the air outlet pipe (4) vertically penetrates through the bottom wall of the air outlet chamber (B), and the lower end of the air outlet pipe (4) faces the rear part. The air cleaner element positioning structure has the advantages of being simple in structure, easy to assembly, large in area of the filter element and significant in filtering effect, and the filter element has a low possibility of blockage.

Description

Motorcycle air filter element positioning structure

technical field

The invention belongs to the technical field of motorcycles, and in particular relates to a positioning structure for a filter element of a motorcycle air filter.

Background technique

The air filter is an important part on your motorcycle that filters the air to deliver the right amount of clean air to the engine. Existing motorcycle air filters usually use a filter-type primary filter structure. When the motorcycle is running in a dusty environment, on the one hand, it may block the filter element and affect the intake effect of the engine; on the other hand, it is easy to cause filter If it is not clean, the dust in the air will enter the carburetor and the engine, causing damage to both the carburetor and the engine.

Contents of the invention

The technical problem to be solved by the present invention is to provide a positioning structure for the filter element of the motorcycle air filter with simple structure and good filtering effect.

The technical scheme of the present invention is as follows: a motorcycle air filter element positioning structure, comprising an upper end cover (1), a lower end cover (2), an air intake pipe (3) and an air outlet pipe (4), the upper end cover (1 ) and the lower end cover (2) are relatively buckled to form the shell of the air filter. The key is that the inside of the shell has two cavities, front and rear, and an air intake pipe (3) is arranged on the front wall of the upper end of the front cavity of the shell. The rear cavity of the shell is divided into an upper expansion chamber (A) and a lower air outlet chamber (B) by a filter element (9), the filter element (9) is supported by the upper end of the side wall of the air outlet chamber (B), The filter element (9) is located in the positioning frame (11), the lower end of the positioning frame (11) is embedded in the matching groove at the upper end of the side wall of the air outlet chamber (B), the bottom wall of the air outlet chamber (B) is the front The slope of the low rear height, the rear and lower part of the air outlet chamber (B) is provided with an outlet pipe (4), the outlet pipe (4) is arc-shaped, and the upper end of the outlet pipe (4) connects the outlet chamber (B) The bottom wall of the bottom wall is vertically connected, and the lower end of the air outlet pipe (4) is towards the rear.

By adopting the above technical scheme, the positioning frame is firmly installed, and can limit the circumferential position of the filter element, so that the positioning of the filter element is reliable. The air is absorbed and separated by cyclone in the front cavity of the shell, and then filtered again by the filter element, and finally the clean air flows from the air outlet chamber to the carburetor through the outlet pipe, thus ensuring that the air entering the engine remains clean and prevents carburetion The ills of the engine and the engine are damaged by the dirty air, which greatly prolongs the service life of the engine. At the same time, the air before being filtered by the filter element has already removed most of the dust and particles by adsorption and cyclone separation. The air flowing through the filter element contains less dust and the dust particle size is small, which will not cause the filter element to be blocked, and the smoothness of the engine air intake is guaranteed. . The bottom wall of the air outlet chamber is a slope with a low front and a high rear, and is adapted to the arc-shaped air outlet pipe to ensure smooth air outlet.

The air intake pipe (3) is an "S"-shaped flat structure with a high front end and a low rear end, which not only has sufficient air intake, but also has a circuitous guiding effect on the air flow, so as to avoid the direct impact of the excessive air intake speed when the motorcycle is running at high speed. The separation cylinder and the air guide cylinder in the front cavity effectively prevent the separation cylinder and the air guide cylinder from being damaged.

The filter element (9) has a rectangular plate structure, so that the filter element has a large area, good filtering effect, and is not easy to be blocked; the filter element is made of foam resin, which is convenient for material selection, easy to manufacture, and low in cost.

A circle of grooves (2a) is arranged along the contour on the upper end of the lower end cover (2), and the ribs (1a) correspondingly provided at the bottom end of the upper end cover (1) are embedded in the groove (2a), and the upper end cover (1) ) and the lower end cover (2) are fixed by multiple bolts. The upper and lower end covers of the above structure are tightly combined, the connection is firm and reliable, and the sealing performance is good, and no air leakage will occur from the buckle.

Beneficial effects: the invention has simple structure, easy assembly, large filter element area, remarkable filtering effect, and is not easy to cause filter element clogging.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Figure 2 is an exploded view of the structure of the present invention.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

As shown in Fig. 1 and Fig. 2, the housing of the air filter is composed of an upper end cover 1 and a lower end cover 2 with opposite buckles. On the upper end of the lower end cover 2 is provided a circle of grooves 2a along the contour, and the rib 1a provided correspondingly at the bottom of the upper end cover 1 is embedded in the groove 2a, and the upper end cover 1 and the lower end cover 2 are fixed by a plurality of bolts. The interior of the air filter housing is divided into two cavities, front and rear, by a partition. A separator cylinder 5 is arranged in the front cavity of the housing, and a liquid storage chamber 6 for storing engine oil is formed at the bottom of the front cavity of the housing. The side wall of the upper end of the liquid storage chamber 6 is provided with an oil filling port 6a, which is sealed by an oil filling cap; an oil change port 6b is provided at the bottom of the liquid storage chamber 6, and the oil change port 6b is sealed by an oil change cap.

As shown in Fig. 1 and Fig. 2, the separation cylinder 5 is tapered with a large top and a small bottom, and is fixed with the upper end cover 1 as a whole. The lower end of the separation cylinder 5 is located in the middle and lower part of the front cavity of the shell. An air inlet is provided on the front wall of the upper end of the separation cylinder 5, and the air inlet communicates with the rear end of the air inlet pipe 3. The air inlet pipe 3 is an "S" shaped flat structure with a high front end and a low rear end. The front wall is fixed as one. An air guiding cylinder 7 is arranged in the separation cylinder 5, the upper end of the air guiding cylinder 7 is fixedly connected with the top wall of the upper end cover 1, and the axis of the air guiding cylinder 7 and the axis of the separation cylinder 5 are located on a straight line. The top in the air guiding cylinder 7 is equipped with a swirl type exhaust fan 8, and the wire of the swirl type exhaust fan 8 is drawn from the top wall of the upper end cover 1, and a sealing ring is embedded in the lead out to prevent air leakage.

As shown in Figure 1 and Figure 2, the rear cavity of the shell is divided into an upper expansion chamber A and a lower air outlet chamber B by a filter element 9. The air outlet 7a opened on the wall communicates. The filter element 9 is a rectangular plate structure and is made of foamed resin. The filter element 9 is supported by the upper end of the side wall around the air outlet chamber B, the filter element 9 is located in the positioning frame 11, and the lower end of the positioning frame 11 is embedded in the matching groove at the upper end of the side wall around the air outlet chamber B. The bottom wall of the air outlet chamber B is a slope with a low front and a high rear. An air outlet pipe 4 is arranged on the rear and lower part of the air outlet chamber B. The air outlet pipe 4 is arc-shaped, and the upper end of the air outlet pipe 4 connects the bottom wall of the air outlet chamber B Vertically through, and the air outlet pipe 4 is fixed with the lower end cover 2 as a whole, and the lower end of the air outlet pipe 4 faces rearward.

The working principle of the present invention is as follows:

The air enters the separation cylinder 5 from the air intake pipe 3, and the separation cylinder 5 is in the shape of a cone with a large top and a small bottom, so that the incoming air flows downward in a spiral shape, and the oil in the liquid storage chamber 6 is viscous and will absorb part of the dust; The flow type exhaust fan 8 works to generate a secondary swirl, so that the air is fully mixed with the carried engine oil, and is sucked into the air guide cylinder 7 from bottom to top. Under the action of centrifugal force, the dust, particles in the air and the carried engine oil It is thrown to the inner wall of the air guide cylinder 7, and slides down in the liquid storage chamber 6 under the action of gravity. The air flows from the air outlet 7a on the upper rear wall of the air guide tube 7 to the expansion chamber A through the drainage channel 10, and the volume changes from small to large, which plays the role of releasing energy and effectively protects the filter element 9 from being impacted; the air is filtered again through the filter element 9 , and finally the clean air flows from the outlet chamber B to the carburetor through the outlet pipe 4.

Claims (4)

1. an air filter element for motorcycle position structure, comprise upper end cap (1), lower end cap (2), suction tude (3) and steam outlet pipe (4), described upper end cap (1) and lower end cap (2) phase make-up, the shell of composition air-strainer, it is characterized in that: the inside of described shell has former and later two cavitys, before shell, the antetheca of cavity upper end arranges suction tude (3), the rear cavity of shell is separated into the dilatation chamber (A) on top and the chamber of giving vent to anger (B) of bottom by filter core (9), described filter core (9) is supported by the upper end of chamber of giving vent to anger (B) all sidewalls, this filter core (9) is positioned at localization frame (11), the lower end of localization frame (11) embeds gives vent to anger in the adaptive groove of chamber (B) all sidewall upper, the diapire of described chamber of giving vent to anger (B) is low early and high after inclined-plane, the rear lower side of this chamber of giving vent to anger (B) is provided with steam outlet pipe (4), described steam outlet pipe (4) is circular arc, to the give vent to anger diapire of chamber (B) of the upper end of steam outlet pipe (4) is vertically through, the lower end of steam outlet pipe (4) is towards rear.

2. air filter element for motorcycle position structure according to claim 1, is characterized in that: suction tude (3) is the low serpentine flat structure in height rear end, front end.

3. air filter element for motorcycle position structure according to claim 1 and 2, is characterized in that: described filter core (9) is rectangular flat structure, and is made up of foamed resin.

4. air filter element for motorcycle position structure according to claim 3, it is characterized in that: the upper end edge profile of described lower end cap (2) is provided with a circle groove (2a), the fin (1a) that upper end cap (1) bottom correspondence is arranged embeds in this groove (2a), and is fixed by many bolts between upper end cap (1) and lower end cap (2).