CN100449138C

CN100449138C - Air cleaner of engine

Info

Publication number: CN100449138C
Application number: CNB2004100072190A
Authority: CN
Inventors: 李三吉; 徐文元
Original assignee: Kwang Yang Motor Co Ltd
Current assignee: Kwang Yang Motor Co Ltd
Priority date: 2004-02-27
Filing date: 2004-02-27
Publication date: 2009-01-07
Anticipated expiration: 2024-02-27
Also published as: CN1661223A

Abstract

The present invention relates to an air filter of an engine, which comprises a box body and an upper cover. A filter is arranged in containing space surrounded by the box body and the upper cover, the box body is provided with an air inlet and an exhaust passage, and a guard sheet is arranged at the side of the air inlet and the exhaust passage below the box body. The air filter of an engine can prevent burr, dust and rubble from being absorbed into the air filter, maintain clean air, and prevent the burr, the dust and the rubble from polluting a carburetor.

Description

The air-strainer of engine

[technical field]

The invention relates to a kind of air-strainer of engine.

[background technique]

The working principle of engine mainly is after fresh air that the external world is imported and fuel oil are mixed into oil gas, the engine of oil gas being imported in the power system fires generation power again, with the mowing machine is example, general mowing machine 1, as Fig. 1, shown in 2, mainly be by body 11, front-wheel 12, trailing wheel 13, engine 14, fuel tank 15 and steering equipment 16 constitute, the bottom of this body 11 is provided with cutter (will not draw) herein, and before the body 11, after be provided with front-wheel 12 and trailing wheel 13, body 11 tops are provided with engine 14 and fuel tank 15 in addition, extend upward by body 11 rears and to be provided with a steering equipment 16, this steering equipment 16 is provided with throttle 151, this throttle 151 is linked to engine 14 with throttle lead 152, and during mowing machine 1 start, be fresh air that air-strainer 2 is imported is mixed into oil gas with fuel oil in Carburetor 3 in after, generation power will be fired again in the oil gas input engine 14, and then the rotation of promotion cutter, and, promote the lawn that steering equipment 16 pushes mowing machine 1 to desire to weeding by manpower again with the speed that throttle 151 control cutters rotate.

And the air-strainer 2 of known mowing machine, as Fig. 2, shown in 3, be by box body 21, filter 22 and loam cake 23 are formed, wherein a side of these box body 21 contiguous Carburetors 3 is provided with suction port 211, and be provided with extra-air inlet 212 in the bottom of box body 21, this extra-air inlet 212 is except that can entering for air, the function that also has sluicing simultaneously, and the central authorities of box body 21 extend upward two side tool arcs and be microscler align member 213, these align member 213 interior relief openings 214 that are provided with in the bottom, and be provided with locating column 215 in two sides, this locating column 215 is the cylinder of hollow, and be provided with screw thread in inside, in addition, be provided with the exhaust passage 216 that is connected with Carburetor 3 in the below of box body 21.

The bottom center of this filter 22 is a hollow state, just can be inserted in for the align member 213 and the locating column 215 of box body 21, and filter 22 around be provided with filter element 221, this filter element 221 is generally a filter pulp or filter paper, be provided with the flexible packing ring 222 of tool in the below of filter 22 periphery, filter 22 tops then are provided with positioning hole 223 corresponding to locating column 215 places.

This loam cake 23 is a microscler lid, box body 21 can be hidden to coat, and is provided with the penetration hole 231 corresponding to locating column 215 in the top of loam cake 23, and this penetration hole 231 can pass locking for bolting element 24.

When known air-strainer 2 makes up, as shown in Figure 3, be that filter 22 is placed on the align member 213 in the box body 21, and make positioning hole 223 on the filter 22 corresponding to locating column 215, and the elastic washer 222 of filter 22 belows can fit on the box body 21, to avoid clean air to overflow, loam cake 23 is placed on the box body 21, and with the penetration hole 231 of loam cake 23 tops positioning hole 223, and pass the positioning hole 223 of filter 22 and be locked in locating column 215 via penetration hole 231 with bolting element 24 corresponding to filter 22.

See also shown in Fig. 1,3, and when engine 14 runnings, extraneous air can be entered in the box body 21 by the suction port 211 and the extra-air inlet 212 of box body 21, and aqueous vapor of being carried secretly in the air and impurity can filter by the filter element 221 of filter 22, aqueous vapor then condenses into water droplet, extra-air inlet 212 by tool sluicing function flows out box body 21, see also shown in Fig. 1,2, filter the clean air in back via filter element 221 and then enter exhaust passage 216 by the relief opening 214 that is positioned at box body 21, be mixed into oil gas for Carburetor 3, make engine 14 continuous runnings.

Yet; general mowing machine is when using; usually can be accompanied by the grass bits that splash; dust and small crushed stone; and when near the air the air-strainer 2 enters in the box body 21 by the suction port 211 of box body 21 and extra-air inlet 212; tend to grass is considered to be worth doing; dust together sucks; and the less grass of volume bits and dust can be filtered element 221 by suction port 211 and extra-air inlet 212 and stop down; but volume is bigger; even suction port 211 can be blocked to live; and make the required lack of air of Carburetor 3; therefore cause the oil gas overrich; and giving off higher waste gas, the user also takes and often air-strainer 2 is dismantled cleaning, if serious obstruction will cause engine 14 to turn round; and the grass of splash bits; dust; rubble also can pollute Carburetor 3, and it is filthy that Carburetor 3 is produced.

Comprehensive as can be known above-mentioned, the suction port 211 of the air-strainer of known engine is considered to be worth doing by grass easily and dust blocks, and cause the required lack of air of Carburetor 3, and give off higher waste gas, and must at any time air-strainer be dismantled cleaning, the user is often caused greatest inconvenience, and historical facts or anecdotes has the necessity that is improved.

[summary of the invention]

The objective of the invention is to be to provide a kind of air-strainer of engine, can prevent that careless bits, dust, rubble are inhaled in the air-strainer, keep the cleaning of air, and avoid careless bits, dust, rubble to pollute Carburetor.

In order to achieve the above object, the invention provides a kind of air-strainer of engine, it comprises a box body and a loam cake, is provided with filter in the containing space that this box body and this loam cake surrounded, and it is characterized in that:

This box body is provided with a suction port and an exhaust passage, and this box body below is positioned at this suction port and this exhaust passage side is provided with catch.

The air-strainer of described engine is characterized in that: stretching out around this suction port is provided with a hollow tube, and air enters this air-strainer by this hollow tube.

The air-strainer of described engine is characterized in that: this box body below is provided with extra-air inlet.

The air-strainer of described engine is characterized in that: this extra-air inlet is a discharge opening.

The air-strainer of described engine is characterized in that: this exhaust passage is a hollow tube, and air is imported in this Carburetor by this hollow tube.

The air-strainer of described engine is characterized in that: this catch covers this hollow tube.

In sum, the air-strainer of engine of the present invention, be one catch to be set by the exhaust passage side below the box body of air-strainer, utilize this catch that Carburetor is covered, and the grass of the time institute's splash of will mowing bits, dust, rubble is stopped, to prevent the grass bits, dust, rubble blocks this suction port and avoids Carburetor to be polluted and produce filth, utilize the hollow tube that is arranged at suction port in addition, further make the grass bits, dust, rubble is difficult for along with air is entered in the air-strainer by suction port, and block this suction port, not only simple and can effectively guarantee the usefulness of engine running.

[description of drawings]

Fig. 1 is the stereogram of known mowing machine.

Fig. 2 is the three-dimensional exploded view of the air-strainer of known engine.

Fig. 3 is the partial sectional view of the air-strainer of known engine.

Fig. 4 is the three-dimensional exploded view of the air-strainer of engine of the present invention.

Fig. 5 is the partial sectional view of the air-strainer of engine of the present invention.

Fig. 6 is the stereogram that the present invention is used in mowing machine.

[embodiment]

For the effect that can be easier to understand structure of the present invention and can reach, conjunction with figs. is described as follows now:

At first see also Fig. 4,6, air-strainer 4 for engine 61 of the present invention, it mainly is by box body 41, filter 42 and loam cake 43 are formed, this box body 41 forms a containing space with loam cake 43, in order to ccontaining filter 42, wherein this box body 41 is provided with suction port 411 in a side of contiguous Carburetor 5, stretch out around this suction port 411 and be provided with a hollow tube 412, and be provided with extra-air inlet 413 in the bottom of box body 41, this extra-air inlet 413 is except that can entering for air, the function that also has sluicing simultaneously, and the central authorities of box body 41 extend upward two side tool arcs and be microscler align member 414, this align member 414 is provided with a relief opening 415 in the bottom, and be provided with locating column 416 in two sides, this locating column 416 is the cylinder of hollow, and be provided with screw thread in inside, in addition, be provided with the exhaust passage 417 that is connected with Carburetor 5 in box body 41 belows, this exhaust passage 417 is hollow tubes 419, this hollow tube 419 and be arranged at the below of box body 41 integratedly, 417 sides are provided with the catch 418 that it can be covered and the below of box body 41 is in the exhaust passage.

The bottom center of this filter 42 is a hollow state, just can be inserted in for the align member 414 and the locating column 416 of box body 41, and filter 42 around be provided with filter element 421, this filter element 421 is generally a filter pulp or filter paper, be provided with the flexible packing ring 422 of tool in filter 42 below peripheries, filter 42 tops then are provided with positioning hole 423 corresponding to locating column 416 places.

This loam cake 43 is a microscler lid, box body 41 can be hidden to coat, and is provided with the penetration hole 431 corresponding to locating column 416 in loam cake 43 tops, and this penetration hole 431 can pass locking for bolting element 44.

The inferior Fig. 5 that sees also, air-strainer 4 of the present invention is when being combined in, be that filter 42 is placed on the align member 414 in the box body 41, and make positioning hole 423 on the filter 42 corresponding to locating column 416, the elastic washer 422 of filter 42 belows then can fit on the box body 41, to avoid clean air to overflow, loam cake 43 is placed on the box body 41, and with the penetration hole 431 of loam cake 43 tops positioning hole 423, and pass the positioning hole 423 of filter 42 and be locked in locating column 416 via penetration hole 431 with bolting element 44 corresponding to filter 42.

See also Fig. 5,6, when engine 61 runnings, extraneous air can be entered in the box body 41 via suction port 411 and extra-air inlet 413 by outward extending hollow tube 412 around the suction port 411 of box body 41, aqueous vapor of being carried secretly in the air and impurity can filter by the filter element 421 of filter 42, aqueous vapor then condenses into water droplet, extra-air inlet 413 by tool sluicing function flows out box body 41, see also Fig. 4, shown in 6, filter the clean air in back via filter element 421 and then enter exhaust passage 417 by the relief opening 415 that is positioned at box body 41, be mixed into oil gas for Carburetor 5, make engine 61 continuous runnings.

See also Fig. 4 again, 6, when the present invention is used in mowing machine 6, when the grass bits of mowing machine 6 in the time institute's splash of mowing, dust, when rubble is desired to enter air-strainer 4 along with air, be arranged at the below of

box body

41, and 418 of catch that are positioned at exhaust passage 417 sides can be considered grass to be worth doing, dust, rubble is stopped, and be difficult for entering suction port 411, to prevent the grass bits, dust, rubble blocks this suction port 411, and this catch 418 also can be covered Carburetor 5, to prevent the grass bits, dust, rubble pollutes Carburetor 5, it is filthy to avoid Carburetor 5 to produce, further, this box body 41 is because of being provided with hollow tube 412, when the grass bits, dust, when rubble is desired to enter air-strainer 4 with air, these grass bits, dust, rubble can stop by hollow tube 412 and be difficult for entering suction port 411, and can further prevent the grass bits, dust, rubble blocks this suction port 411, and engine 61 can be run well.

Claims

1. the air-strainer of an engine, it comprises a box body and a loam cake, is provided with filter in the containing space that this box body and this loam cake surrounded, and it is characterized in that:

This box body is provided with a suction port and an exhaust passage, and this box body below is positioned at this suction port and this exhaust passage side is provided with catch, and this exhaust passage is a hollow tube, and air is by in this hollow tube input Carburetor, and this catch covers this hollow tube.

2. the air-strainer of engine as claimed in claim 1 is characterized in that: stretching out around this suction port is provided with a hollow tube.

3. the air-strainer of engine as claimed in claim 1 is characterized in that: be provided with extra-air inlet below this box body.

4. the air-strainer of engine as claimed in claim 3, it is characterized in that: this extra-air inlet is a discharge opening.