CN2231715Y

CN2231715Y - Air cleaner for motorcycle engine

Info

Publication number: CN2231715Y
Application number: CN 95236862
Authority: CN
Inventors: 胡忠宁
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-05-25
Filing date: 1995-05-25
Publication date: 1996-07-24
Anticipated expiration: 2005-05-25

Abstract

The utility model relates to an air cleaner for a motorcycle engine. The air cleaner for a motorcycle engine is provided with a device body 1. A filtering sheet 2 is arranged in the device body 1. An air inflow cavity 3 and an air outflow cavity 4 are respectively arranged on both sides of the filtering sheet 2. An air outlet 6 is arranged on the cavity wall of the air outflow cavity 4. The cavity wall of the air inflow cavity 3 is provided with a plurality of air inflow pores 8 through which air can enter simultaneously. When the air cleaner for a motorcycle engineoperates, the air simultaneously enters the air inflow cavity through the air inflow pores. The air is filtered through the whole filtering surface of the filtering sheet in an even airflow mode. Various parts of the filtering sheet are fully utilized. The utility model has the advantages of stable performance of the cleaner, good use performance, service life extension, and obvious fuel oil saving effect of the engine.

Description

The motorcycle engine air-strainer

The utility model relates to the improvement of motorcycle engine with air-strainer.

During motorcycle engine work, there is a large amount of air to enter in the engine cylinder-body.Usually contain impurity such as dust in the air, swim in airborne these impurity, can have a strong impact on, damage the moving element of motor, cause engine performance to descend if enter motor.Therefore, need at first pass through filtering to the air that enters in the engine cylinder-body, promptly the Carburetor air inlet on motor is provided with air-strainer air is filtered.

Fig. 1, Fig. 2 are structure signal (principle) figure that contracts of existing air-strainer.Body 1 is arranged, filtering sheet 2 is arranged in the body 1, the both sides of filtering sheet 2 are respectively air-inlet cavity 3, outlet chamber 4, on the chamber wall of air-inlet cavity 3 suction port 5 are arranged, and on the chamber wall of outlet chamber 4 air outlet 6 are arranged, during installation, and the carburetor air mouth that air outlet 6 is communicated with on the motor 7.During engine operation, owing to the negative pressure that the motion of cylinder body inner carrier produces, air enters air-inlet cavity through suction port, after the filtering sheet filters scrubbing, by outlet chamber, in the air outlet enters cylinder body.Because the air inlet of existing air-strainer is that single suction port 5 is concentrated air inlet on the wall of chamber, causes the air in the air-inlet cavity to filter via the part of filtering sheet with the air-flow of concentrating relatively, rather than filters via whole filtering surface equably.Consequently under the situation that the filtering surface of filtering sheet is not fully used, cause local filtering surface (layer) to produce obstruction prematurely, cause working resistance increase, the usability of filter cleaner to reduce, and have a strong impact on the proper functioning of motor and cause the oil consumption height, cause that owing to local filtering surface (layer) produces to stop up prematurely this position damages easily, shortened the working life of filter cleaner.

The purpose of this utility model provides that a kind of service behaviour is stable, usability motorcycle engine air-strainer preferably.

The technological scheme of finishing the work is several (a plurality of) air inlet apertures 8 that air inlet simultaneously is set on the wall of the chamber of air-inlet cavity 3, referring to Fig. 2 to Fig. 7.During engine operation, air is entered in the air-inlet cavity simultaneously by each aperture, filters via whole filtering surface (layer) with the form than uniform air flow, makes each position of whole filtering surface (layer) carry out work simultaneously, is fully used.Reach usability that improves air-strainer and the purpose that increases the service life.

Fig. 1, Fig. 2 are the structural representation of existing air-strainer, and Fig. 2 is the left view of Fig. 1;

Fig. 3, Fig. 4 are the utility model embodiment 1 structural representation, and Fig. 4 is that the A of Fig. 3 is to view;

Fig. 5 is embodiment 2 a structural representation;

Fig. 6, Fig. 7 are embodiment 3 structural representation, and Fig. 7 is the right elevation of Fig. 6.

At described technological scheme, be elaborated with the embodiment of following three kinds of structural types.

Embodiment 1.See Fig. 3, Fig. 4, on air-inlet cavity 3, adjacent chamber wall, some (a plurality of) air inlet aperture 8 is set with filtering sheet 2.In this example, the chamber wall that is provided with some air inlet apertures 8 is an oblique installing type.

Embodiment 2.See Fig. 5, this example is provided with some air inlet apertures 8 on air-inlet cavity 3, relative with filtering sheet 2 chamber wall, and the chamber wall that is provided with some air inlet apertures 8 is a circular arc, and has the axis of partial-air admission aperture vertical with the filtering surface of filtering sheet 2.

Embodiment 3.See Fig. 6, Fig. 7, this example provides best enforcement structural type, on air-inlet cavity 3, relative with filtering sheet 2 chamber wall some air inlet apertures 8 is set, and the axis of all the air inlet apertures all filtering surface with filtering sheet 2 is vertical.The air that enters air-inlet cavity filters via the whole filtering surface of filtering sheet with the uniform airflow form.

The form structure of air-strainer, different and corresponding with motor form structure and installation form.

Implement the parameter of structure and select example.With air displacement is that 90 milliliters motor air-strainer is an example, select embodiment 3 structural type for use, establish 120 of air inlet apertures, 3 millimeters of hole diameters, the intake resistance of actual measurement is less than 0.8KPa (NBS is less than 1.2KPa), engines fuel-economizing about 10%.With air displacement is that 50 milliliters motor air-strainer is an example, select embodiment 3 structural type for use, hole diameter is 3 millimeters, and 80 air inlet apertures are set, the actual measurement intake resistance is less than 0.18KPa (NBS is less than 0.2KPa), engines fuel-economizing about 12%.

The technique effect that the utility model has compared with the prior art is: because at inlet chamber The chamber wall on the small air inlet hole of some (a plurality of) simultaneously air inlet is set, make to enter in the inlet chamber Air filter via the whole filtering surface of filtering sheet (layer) with airflow pattern uniformly, Take full advantage of each position of filtering sheet, can make the service behaviour of air filter more stable, Improve serviceability, increase the service life, and make engine that more significantly oil-saving effect be arranged.

Claims

1. motorcycle engine air-strainer, body (1) is arranged, filtering sheet (2) is arranged in the body (1), the both sides of filtering sheet (2) are respectively air-inlet cavity (3) and outlet chamber (4), air outlet (6) is arranged on the chamber wall of outlet chamber (4), it is characterized in that the chamber wall of air-inlet cavity (3) is provided with some air inlet apertures (8) of air inlet simultaneously.

2. according to the described motorcycle engine air-strainer of claim 1, it is characterized in that being provided with on air-inlet cavity (3), relative with filtering sheet (2) chamber wall some air inlet apertures (8) of air inlet simultaneously, the axis of the described air inlet aperture all filtering surface with filtering sheet (2) is vertical.