CN203130296U

CN203130296U - Engine air filter

Info

Publication number: CN203130296U
Application number: CN 201320113224
Authority: CN
Inventors: 钟立志
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-03-13
Filing date: 2013-03-13
Publication date: 2013-08-14
Anticipated expiration: 2023-03-13

Abstract

The utility model discloses an engine air filter which comprises a filter pipe having an air inlet and an air outlet. The air outlet is reserved at the bottom of the filter pipe. A partition plate is disposed at the inner bottom of the filter pipe. A filter cavity is formed between the partition plate and the conical bottom of the filter pipe. A filter net is disposed in the filter cavity. The partition plate is provided with a through hole. An outlet pipe comprises an outer pipe and an inner pipe. One end of the outer pipe is fixed on the air outlet, and one end of the inner pipe is fixed on the through hole while the other end of the inner pipe is located in the filter pipe. The air inlet is arranged on the side of the filter pipe. An inlet pipe is disposed inside the filter pipe. One end of the inlet pipe is connected with the air inlet while the other end of the inlet pipe is located in the filter pipe. Impurities and dust in air are removed by centrifugal force generated by the spiral inlet pipe, so that the impurities and dust are allowed to fall naturally; the filter net is disposed at the orifice of the outlet pipe, minute impurities in the air are further prevented from entering an engine, and accordingly quality of the air entering the engine is improved.

Description

A kind of air filter for engine

Technical field

The utility model relates to mechanical field, is specifically related to a kind of engine charge be carried out the filtered air filter.

Background technique

The engine charge end of general vehicle all is provided with air filter, but because the difference of ambient air quality of living in and working environment, cause some air filters actual demand of can not satisfying the demand, particle as the big still relative dust of atmospheric pollution in the city is less, and air quality is good but dust granule is bigger in the rural area, particularly be operated in the agricultural vehicle in field, the easier suction tude of the time kicking up in work that enters motor of dust, thus influence the normal operation of motor.

The model utility content

In order to solve the engine air filtration problem that car is used in the rural area; the utility model provides a kind of air filter for engine that can eliminate the large particle dust and not influence air inlet; concrete scheme is as follows: a kind of air filter for engine; comprise the screen pipe that has suction port and air outlet; it is characterized in that; described screen pipe is taper; the air outlet is arranged on the conical lower portion center of circle of screen pipe; fixedly there is steam outlet pipe at the place in the air outlet; the inner bottom part of described screen pipe is provided with space bar; form filtering cavity between the conical lower portion of space bar and screen pipe; be provided with filter screen in the described filtering cavity; the position of the relative air outlet of described space bar is provided with corresponding through hole; steam outlet pipe is divided into exterior tube and inner tube; wherein exterior tube one end is fixed on that the other end is connected with the engine gas import on the air outlet; the other end is positioned at screen pipe on the through hole and inner tube one end is fixed on; described suction port is arranged on the side of screen pipe conical lower portion; be provided with in screen pipe inside around the inner tube suction tude of structure in the shape of a spiral, an end of suction tude is connected the other end with suction port and is positioned at screen pipe.

Be the dust in the easy cleaning screen pipe: what the conical top of described screen pipe was provided with the splendid attire dust connects the slag pipe, and the described slag pipe that connects is connected with screen pipe by screw thread.

For accelerating the flow velocity that gas enters: the sectional area of described suction tude is less than the sectional area of steam outlet pipe.

The centrifugal force that the utility model utilizes the suction tude of screw type to produce breaks away from airborne impurity and dust, reach and make the purpose that impurity and dust fall naturally in the air, the structure of the air duct of Yan Changing and the screw type pressure that namely can reduce in the pipe can increase again the stopping of impurity in the air simultaneously, further eliminated airborne impurity.Filter screen in that the mouth of pipe of giving vent to anger is installed can prevent further that impurity small in the air from entering motor, improves the air quality that enters motor, and filter screen is installed in the also for convenience detach and cleaning of the mouth of pipe of giving vent to anger, and can reduce the number of times of safeguarding motor.Utilization connects the slag pipe can the interior dust of easy cleaning screen pipe.

Description of drawings

Fig. 1 structural representation of the present utility model;

The internal structure schematic representation of Fig. 2 Fig. 1;

Label declaration in the accompanying drawing: 1-screen pipe, 2-air outlet, 3-suction port, 4-connect slag pipe, 5-exterior tube, 6-suction tude, 7-filter screen, 8-inner tube, 9-space bar.

Embodiment

As Fig. 1, shown in 2, the disclosed air filter for engine of the utility model, comprise the screen pipe 1 that has suction port 3 and air outlet 2, described screen pipe 1 is taper, air outlet 2 is arranged on the conical lower portion center of circle of screen pipe 1, fixedly there is steam outlet pipe at 2 places in the air outlet, the inner bottom part of described screen pipe is provided with space bar 9, form filtering cavity between the conical lower portion of space bar 9 and screen pipe 1, be provided with filter screen 7 in the described filtering cavity, the position of described space bar 9 relative air outlets 2 is provided with corresponding through hole, steam outlet pipe is divided into exterior tube 5 and inner tube 8, wherein exterior tube 5 one ends are fixed on that the other end is connected with the engine gas import on the air outlet 2, the other end is positioned at screen pipe on the through hole and inner tube 8 one ends are fixed on, described suction port 3 is arranged on the side of screen pipe conical lower portion, is provided with in screen pipe 1 inside around inner tube 8 suction tude 6 of structure in the shape of a spiral, and an end of suction tude 6 is connected the other end with suction port 3 and is positioned at screen pipe 1.

Exterior tube 5 of the present utility model is connected with the engine gas import, during work, motor sucks air by exterior tube 5, the air that enters screen pipe 1 by suction tude 6 at first will pass through spiral winding mountain path structure, airborne dust or dust are understood free fall after running into volute wall, and the air pressure in the suction tude 6 is also less than the outside, airborne impurity or dust in a single day enter suction tude 6 also can be under the gravity effect whereabouts naturally.The air that enters screen pipe 1 is at first filtered out big dust by the filter screen at suction port place, reduced the probability that dust enters screen pipe 1, improved the quality of air in the screen pipe 1, also just improved the quality that enters engine air, in addition filter screen is installed on the suction port, also maintain easily and dismantle, reduced the number of times of clear.The 7 pairs of air that enter motor of filter screen that are arranged on screen pipe inside filter again, after entering filtering cavity, air in the screen pipe is filtered net filtration, air after the filtration enters motor by exterior tube 5 again, this programme has improved airfiltering number of times, also just improve the quality of filtering the back air, prolonged the uptime of motor.

Clear up the dust in the screen pipe 1 for convenience, the utility model connects slag pipe 4 what the conical top of screen pipe 1 was provided with the splendid attire dust, and the described slag pipe 4 that connects is connected with screen pipe 1 by screw thread.Connect the dust that the slag pipe can be removed screen pipe inside by regularly or regularly clearing up, utilize the screen pipe that is threaded to make that the dismounting that connects the slag pipe is convenient.For improving the air velocity of suction tude, suction tude 6 sectional areas of the present utility model are less than the sectional area of exterior tube 5.Accelerating the suction tude air velocity can make airborne impurity be easier to bump with tube wall, thereby make more impurity fall into screen pipe, in addition, the flow velocity of accelerating the air inlet inner air tube also can improve centrifugal force, airborne impurity is thrown on the tube wall of screen pipe, improves filtering effect.

The above only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model, anyly be familiar with the technician of this patent in not breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned prompting is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, any simple modification that foundation technical spirit of the present utility model is done above embodiment, equivalent variations and modification all still belong in the scope of the utility model scheme.

Claims

1. air filter for engine, comprise the screen pipe (1) that has suction port (3) and air outlet (2), it is characterized in that, described screen pipe (1) is taper, air outlet (2) is arranged on the conical lower portion center of circle of screen pipe (1), (2) locate fixedly to have steam outlet pipe in the air outlet, the inner bottom part of described screen pipe (1) is provided with space bar (9), form filtering cavity between the conical lower portion of space bar (9) and screen pipe (1), be provided with filter screen (7) in the described filtering cavity, described space bar (9) position of air outlet (2) relatively is provided with corresponding through hole, steam outlet pipe is divided into exterior tube (5) and inner tube (8), wherein exterior tube (5) one ends are fixed on air outlet (2) and go up the other end and be connected with the engine gas import, the other end is positioned at screen pipe on the through hole and inner tube (8) one ends are fixed on, described suction port (3) is arranged on the side of screen pipe conical lower portion, be provided with in screen pipe (1) inside around inner tube (8) suction tude of structure (6) in the shape of a spiral, an end of suction tude (6) is connected the other end with suction port (3) and is positioned at screen pipe.

2. a kind of air filter for engine as claimed in claim 1 is characterized in that, what the conical top of described screen pipe (1) was provided with the splendid attire dust connects slag pipe (4), and the described slag pipe (4) that connects is connected with screen pipe (1) by screw thread.

3. a kind of air filter for engine as claimed in claim 1 is characterized in that, the sectional area of described suction tude (6) is less than the sectional area of steam outlet pipe (5).