CN100432413C

CN100432413C - Air filter device for engine

Info

Publication number: CN100432413C
Application number: CNB2004100577852A
Authority: CN
Inventors: 许永昌; 陈建宏; 曾新安; 欧庆昌; 李德华
Original assignee: Kwang Yang Motor Co Ltd
Current assignee: Kwang Yang Motor Co Ltd
Priority date: 2004-08-19
Filing date: 2004-08-19
Publication date: 2008-11-12
Anticipated expiration: 2024-08-19
Also published as: CN1737359A

Abstract

The present invention relates to an air filter device for an engine, which is provided with a box body, a box cover and a filtering element, wherein a drain hole is arranged on the bottom part of the box body of the air filter, the position of the drain hole is provided with a rewinding mechanism which is covered with a cover body and provided with a rewinding type atmospheric air channel, and the drain hole is communicated with the rewinding type atmospheric air channel through the drain hole so as to make the accumulated water and the overrich oil vapor in the air filter discharged automatically. Therefore, the defect of difficult starting caused by excessive water vapor or overrich oil vapor for an engine can be solved.

Description

The engine air purifier unit

[technical field]

The present invention relates to a kind of engine air purifier unit.

[background technique]

The start of general vehicle is as motorcycle, all-terrain vehicle ... etc., be after fresh air that the external world is imported and oil are mixed into oil gas, again with the quick-fried generation power of oil gas input engine, move reciprocatingly and promote piston, drive belt speed change mechanism via bent axle and come transmission, to reach the purpose of advancing.Because of engine in the running, need an amount of air to enter, and the air in the atmosphere itself is mingled with aqueous vapor, impurity and dust etc., if impurity and dust enter engine, the damage of engine and air inlet system parts will be caused, and too much aqueous vapor will cause engine start to be difficult for, for fear of impurity and dust infringement engine and air inlet system, vehicle all is provided with air-strainer, this air-strainer is arranged on the front of the Carburetor (this is general conventional engine) or the throttle valve body (this is injection engine) of air inlet system, can obtain clean air and keep good work status to guarantee air inlet system and engine.

Known air-strainer 1, as shown in Figure 1, it is the inflow chamber 111 that is defined by loam cake 11, filter element 12 and the delivery chamber 131 that is defined by lower cover 13 are constituted, wherein, flow into chamber 111 and can be provided with gas-entered passageway 14, this filter element 12 is generally a filter pulp, and being provided with an exhaust passage 15, delivery chamber 131 is connected with Carburetor or throttle valve body (in graphic, not drawing), below delivery chamber 131, be provided with water gall mechanism 16, this water gall mechanism 16 has the body 161 that extends to the car body below, and utilize a body 162 to make its sealing in the water outlet place of this body 161, and a clamping element 163 is clamped and fastened on body 162 on the water gall mechanism 16.

When engine in the running, a large amount of ambient airs is entered by gas-entered passageway 14 and flows into chamber 111, extraneous air forms clean air via filter element 12 backs and enters delivery chamber 131, enter Carburetor or throttle valve body by exhaust passage 15 again, and form mixed oil and gas with the air/fuel of proper proportion and in the firing chamber, burn and produced power and make the engine start.Yet extraneous air is often being carried aqueous vapor, impurity and dust secretly, and impurity and dust can filter by filter element 12, and aqueous vapor can condense into water droplet, in delivery chamber 131, form ponding, when finding by the time in the body 161 ponding to be arranged, just body 162 is taken off, allow water discharge.As seen, known water gall mechanism 16 only has the function of sluicing, and need note at any time whether ponding is arranged in the air-strainer 1 with manpower, in time carried out sluicing work, when this vehicle for a long time at the sandy beach or small stream bed when advancing or raining cats and dogs, will cause air-strainer after cutting the engine, because of too much aqueous vapor and the oil gas of depositing, when starting engine once more, the phenomenon that often causes engine start to be difficult for, historical facts or anecdotes has the necessity that is improved.

[summary of the invention]

The purpose of this invention is to provide a kind of engine air purifier unit, the oil gas of ponding in the air-strainer and overrich can be discharged, can solve that too high or oil gas overrich causes engine to be difficult for the shortcoming that starts because of aqueous vapor, and can prevent that dust from being entered in the air-strainer by spilled water hole.

The invention provides a kind of engine air purifier unit, this air-strainer comprises a box body, a lid and a filter element, it is characterized in that: the bottom side of this box body is provided with a spilled water hole, at this spilled water hole place one rewind mechanism is set, this rewind mechanism is covered by a lid, this rewind mechanism has the formula plasmas channel that unrolls, and this spilled water hole communicates with ambient air by this formula plasmas channel that unrolls.

Described engine air purifier unit is characterized in that: this rewind mechanism comprises first resistor and second resistor, and this first resistor and second resistor are annular solid.

Described engine air purifier unit is characterized in that: this first resistor and second resistor respectively are provided with short slot.

Described engine air purifier unit is characterized in that: the opening direction of the short slot of this first resistor and second resistor is not in same direction.

Described engine air purifier unit is characterized in that: this lid has a ventilating hole.

Described engine air purifier unit is characterized in that: this rewind mechanism is to be arranged at this box body below.

Described engine air purifier unit is characterized in that: this rewind mechanism is to be arranged in this lid.

Engine air purifier unit of the present invention, the place sets firmly a rewind mechanism in the air-strainer spilled water hole, the oil gas of ponding in the air-strainer and overrich can be discharged by this rewind mechanism, can solve that too high or oil gas overrich causes engine to be difficult for the shortcoming that starts because of aqueous vapor, and can prevent that dust from being entered in the air-strainer by spilled water hole.

[description of drawings]

Fig. 1 is known air-strainer schematic representation.

Fig. 2 is the three-dimensional exploded view of air-strainer of the present invention.

Fig. 3 is an air purifier unit partial exploded view of the present invention.

Fig. 4 is the sectional view of air-strainer rewind mechanism of the present invention and lid.

Fig. 5 is the schematic representation of another embodiment of the present invention.

[embodiment]

Be the effect that can be easier to understand structure of the present invention and can reach, cooperation now illustrates as follows:

At first, see also shown in Fig. 2,3, air-strainer 2 of the present invention is made of a box body 21, a lid 22, a filter element 23 and a member 24 that unrolls.This box body 21 is provided with a suction tude 211 that supplies outside air to enter at upper end, this suction tude 211 can import the air in the external world and flow in the chamber 212, filter the laggard delivery chamber 214 of going into through being located at the filter element 23 that flows into chamber 212, deliver in throttle valve body or the Carburetor through steam outlet pipe 215 again and (do not draw herein), flow into chamber 212 and come boundary's branch by a dividing plate 213 that extends from box body 21 with delivery chamber 214, the bottom of this inflow chamber 212 is provided with a spilled water hole 216, but ponding and oil gas in these spilled water hole 216 discharged air filter cleaners 2.

Lid 22, its shape is corresponding with the side edge shape of box body 21, but the mat bolting element is fixedly arranged on the side of box body 21.

Rewind mechanism 24, see also shown in Figure 3, it mainly is opposite position at the spilled water hole 216 of box body 21, first resistor 241 and second resistor 242 that extend out from the below of box body 21 constitute, this is first years old, second resistance 241,242 can be covered by a lid 243, this first resistor 241 is the annular solids for a hollow shape, offer a short slot 2411 in a side, should in vacancy just can be connected with the spilled water hole 216 of the inflow chamber 212 of box body 21, this second resistor 242 also becomes the annular solid of hollow shape, offers short slot 2421 in a side, second resistor 242 has extended a fixed base 2422 in a side, and a side of this fixed base 2422 offers fixed hole 2423.The hollow portion of second resistor 242 just can be wherein ccontaining with first resistor 241, be formed with gap 2412 between first resistor 241 and second resistor 242, this gap 2412 can become a passage, again first resistor 241 and the

short slot

2411,2421 of second resistor 242 be opposite to setting.One side of lid 243 becomes open shape and forms a ventilating hole 2432, the opposite side of ventilating hole 2432 is provided with a screw fixed hole 2431, this screw fixed hole 2431 is just corresponding with the fixed hole 2423 of the fixed base 2422 of second resistor 242, can lid 243 be fixed on the fixed base 2422 by bolting element S, this lid 243 also can cover this first resistor 241 and second resistor 242.The width of this lid 243 is slightly larger than the external diameter of second resistor 242, and the height of the degree of depth of lid 243 and second resistor 242 is similar, therefore when lid 243 is fixed on the fixed base 2422 of second resistor 242, the top edge of first resistor 241 and second resistor 242 contacts with the bottom surface 2433 of lid 243, and the two side faces 2434,2435 of lid 243 then remains with the gap with the outer periphery of second resistor 242.

See also Fig. 4 again, rewind mechanism 24, be the gap 2412 of the short slot 2421 of the short slot 2411 that utilizes the ventilating hole 2432 of lid 243 and first resistor 241, second resistor 242 and first resistor 241 and second resistor 242 and the passage that forms, cover the lids 243 formula plasmas channel A that unrolls by rewind mechanism 24, can allow the spilled water hole 216 of box body 21 communicate with atmosphere by this formula plasmas channel A that unrolls.

Enforcement of the present invention, when having ponding or vehicle to have overrich oil gas to accumulate in the air-strainer at starting a cold engine, the oil gas of this ponding and overrich can be by the spilled water hole 216 that flows into chamber 212, short slot 2411 via first resistor 241 of

rewind mechanism

24,2412 form the short slot 2421 that passage flows to second resistor 2412 through the gap, by the gap of the lid 243 and second resistor 242, the oil gas of this ponding and overrich is outside the ventilating hole 2432 exhausting air filter cleaners 2 of lid 243 again.When vehicle in the running, because the start of engine, can make the inflow chamber 212 of air-strainer 2 form a negative pressure, and make the formula plasmas channel A that unrolls that flows into the 212 pairs of rewind mechanism 24 in chamber form one suction, when dust or foreign matter are attracted by the ventilating hole 2432 of lid 243, mat lid 243 covers second resistor 242 and first resistor 241 of this rewind mechanism 24, can form the resistance shelves to foreign matters such as dusts, and foreign matters such as prevention dust enter from spilled water hole 216 and flow in the chamber 212.

The present invention is by spilled water hole 216 arranged outside one rewind mechanism 24 at air-strainer 2, relend help rewind mechanism 24 be used for make air-strainer 2 have the effect of automatic drainage and oil extraction gas, can prevent that engine from starting the phenomenon that is difficult for and taking place when causing the cold car of engine because of too much aqueous vapor and oil gas, and can prevent that dust from being entered in the air-strainer 2 by spilled water hole because lid 243 covers rewind mechanism 24.

Another embodiment of the present invention sees also Fig. 5, can be with direct one-body molded the extending on lid 243A inside of the first resistor 241A and the second resistor 242A, form a rewind mechanism 24A independently.In addition nearby locate to establish a fixed base P at the spilled water hole 216 of lid 21, this rewind mechanism 24A and lid 243A are that mat bolting element S locking is on fixed base P, and the structure of first,

second resistor

241A, 242A is all identical with the first embodiment of the present invention with configuration, so do not repeat them here.

In sum, the present invention is provided with a

rewind mechanism

24,24A by means of the below of air-strainer 2, and by the effect of this

rewind mechanism

24,24A, make air-strainer 2 have the effect of automatic drainage and oil extraction gas, and can prevent really that engine from starting the phenomenon that is difficult for and taking place when causing the cold car of engine because of too much aqueous vapor and oil gas, and can prevent effectively that dust from being entered in the air-strainer by spilled water hole because lid covers on the rewind mechanism, can effectively improve known air-strainer can't automatic drainage and the disappearance of oil extraction gas.

Claims

1. engine air purifier unit, this air-strainer comprises a box body, a lid and a filter element, it is characterized in that: the bottom side of this box body is provided with a spilled water hole, at this spilled water hole place one rewind mechanism is set, this rewind mechanism is covered by a lid, this rewind mechanism has the formula plasmas channel that unrolls, and this spilled water hole communicates with ambient air by this formula plasmas channel that unrolls.

2. engine air purifier unit as claimed in claim 1 is characterized in that: this rewind mechanism comprises first resistor and second resistor, and this first resistor and second resistor are annular solid.

3. engine air purifier unit as claimed in claim 2 is characterized in that: this first resistor and second resistor respectively are provided with short slot.

4. engine air purifier unit as claimed in claim 3 is characterized in that: the opening direction of the short slot of this first resistor and second resistor is not in same direction.

5. engine air purifier unit as claimed in claim 1 is characterized in that: this lid has a ventilating hole.

6. engine air purifier unit as claimed in claim 1 is characterized in that: this rewind mechanism is to be arranged at this box body below.

7. engine air purifier unit as claimed in claim 1 is characterized in that: this rewind mechanism is to be arranged in this lid.