CN2795463Y - Oil bath type metal net air filter - Google Patents

Abstract

The utility model discloses an oil bath type metal net air filter. A filter screen body (6) is arranged at the bottom of an inner cavity formed by clapping and connecting a lower housing (11) and an upper housing (2); a through hole (10) arranged at the bottom of the inner cavity of the filter screen body is communicated with the bottom of the lower housing (11); a hollow filter screen supporting seat (8) arranged in the inner cavity of the filter screen body is connected with a filter screen (7); the lower end surface of the filter screen supporting seat forms a through hole shape and is communicated with the bottom of the filter screen body; the upper end part of the filter screen supporting seat is connected with a through hole-shaped filter screen end cover (5); the upper part of the inner cavity of the upper housing is connected with a bent pipe (3), one end of the bent pipe (3) is connected with an air inlet pipe (4), and the other end is connected with the upper end of the hollow filter screen supporting seat. In work, air filtration bears the dual filtration of oil wet type rough filtration first and dry type fine filtration of a filter screen then, and the air filtration quality of an engine and the work life of the engine are evidently improved. Filtration oil or a filter screen can be periodically replaced or cleaned, and the maintenance cost of vehicle use is effectively reduced.

Description

Oil bath type wire netting air-strainer

(1) technical field: the utility model relates to the motor vehicle air filtration unit; Be specifically related to the oil bath type wire netting air-strainer that uses on a kind of heavy motor vehicles.

(2) background technique: heavy motor vehicles of the prior art (as the steyr truck) goes up the air-strainer that uses, and is the dry type filter cleaner that places its housing inner chamber to be constituted by papery filtering core.Exist not enough: the one, the paper air cleaner of dry construction, in the working environment that abominable dust, sand grains fly upward, air-filtering turbidity test deviation, quality and its working life that motor proper functioning required air filters have seriously been influenced, the 2nd, when motor vehicle are normally operated in the 8000-10000 kilometer, its papery Air filter element promptly can't use, and the filtering refill that need more renew has again increased the maintenance cost that vehicle uses.

(3) summary of the invention: the purpose of this utility model is to provide a kind of oil bath type wire netting air-strainer, is intended in the bad working environment, improves air filtering quality and its operating life of motor vehicle engine, and reduces the maintenance cost that vehicle uses.

For achieving the above object, the utility model oil bath type wire netting air-strainer, the upper shell that comprises lower shell body and be connected with suction tude and steam outlet pipe respectively constitutes; Its improvement is: at described lower shell body and the involutory intracavity bottom that connects and composes of upper shell, be connected with strainer body; The through hole that the strainer body intracavity bottom is provided with communicates with the lower shell body bottom; On the hollow shape filter screen bearing that described strainer body inner chamber is equipped with, be connected with filter screen; Described filter screen bearing lower end surface is the through hole shape and communicates with the strainer body bottom; In described filter screen bearing upper end portion, be connected with through hole shape filter screen end caps; Above described upper shell inner chamber, bend pipe one end that is connected with links to each other with suction tude, and the upper end hole of its other end and hollow shape filter screen bearing joins.

The utility model is by taking said structure, realized in the work that air-filtering is earlier through fluid wet type coarse filtration, through the double filtration program of the smart filter of filter screen dry type, compare again, improved air filtering quality and its operating life of motor vehicle engine significantly with prior art; Filtering fluid or filter screen can be periodically changed or cleaned, has reduced the maintenance cost that vehicle uses effectively.

(4) description of drawings:

Fig. 1 has partial cross sectional views for first kind of mode of execution of the utility model;

Fig. 2 has partial cross sectional views for second kind of mode of execution of the utility model.

(5) embodiment: Fig. 1-shown in Figure 2.This oil bath type wire netting air-strainer comprises lower shell body 11 and is connected with suction tude 4 respectively and the upper shell of steam outlet pipe 12 formations; At described lower shell body 11 and the upper shell 2 involutory intracavity bottoms that connect and compose, be connected with strainer body 6; Described strainer body 6 intracavity bottoms are provided with the through hole 10 of precipitation dust, sand grains, communicate with lower shell body 11 bottoms; Be equipped with on the hollow shape filter screen bearing 8 at described strainer body 6 inner chambers, twine and be connected with the filter screen 7 that multilayer is made of the curved shape wire; The skeleton shape through hole that described filter screen bearing 8 lower end surfaces are provided with communicates with strainer body 6 bottoms; In described filter screen bearing 8 upper end portions, be connected with skeleton through hole shape filter screen end caps 5; Above described upper shell 2 inner chambers, bend pipe 3 one ends that are connected with link to each other with suction tude 4, the upper end hole of its other end and hollow shape filter screen bearing 8 join (Fig. 1-shown in Figure 2).

According to the mounting point of different motor vehicle, the link position direction of suction tude 4 of the present utility model or steam outlet pipe 1 can be horizontal respectively, vertical configuration or skewed connection wherein a kind of (Fig. 1-shown in Figure 2).The utility model is used on the heavy motor vehicles usually, earlier filtering machine oil 9 is injected lower shell body 11 intracavity bottoms and makes the fluid surface remain on above position, strainer body 6 bottoms (Fig. 1-shown in Figure 2) by a constant volume before using, respectively suction tude 4 is linked to each other with the admission line of car body, steam outlet pipe 1 joins with car body engine charge pipeline again.During work, the filtering air that the car body motor is required, suction by steam outlet pipe 1, air to be filtered is entered in hollow shape filter screen bearing 8 holes by suction tude 4 and bend pipe 3, and discharge the fluid surface of directly pouncing on filtering machine oil 9 from its through hole lower end, make its fluid surface form the spray pattern of seething up and down, entered the sand grains that contains in the air to be filtered in oil atomization district, strainer body 6 bottom this moment, dust, filter cleaning postposition through mist of oil stays in filtering machine oil 9 and (also claims wet type tentatively to filter cleaning), air after coarse filtration passes through the skeleton shape through hole of filter screen bearing 8 lower end surfaces again, entering multilayer is twined in the filter screen 7 constitute by the curved shape wire and carries out the dry type fine filtering, the air of last filter cleaning enters upper shell 2 inner chambers top by the skeleton shape through hole of filter screen end caps 5, be inhaled into by steam outlet pipe 1 and carry out work in the motor, finished the double filtration filtering of air effectively.Filter cleaning through mist of oil and put sand grains, the dust that stays in fluid, a plurality of precipitation through holes 10 depositions that are provided with by strainer body 6 bottoms store in the bottom of lower shell body 11.When motor vehicle travel the 8000-10000 kilometer, usually filtering machine oil 9 is changed and cleaned sand grains, dust, take off filter screen 7 and after cleaning up, can reinstall use (Fig. 1-shown in Figure 2) again.

The above only is a preferred implementation of the present utility model.Be noted that for the person of ordinary skill of the art; under the prerequisite that does not break away from the principle of the invention; need not other technical characteristics that the process creative work just can be associated; can also make some modification and improvement; these variations obviously all should be considered as equivalent feature, all belong within the protection domain of the utility model patent.

Claims (2)

1, a kind of oil bath type wire netting air-strainer comprises lower shell body (11) and is connected with suction tude (4) respectively and the upper shell (2) of steam outlet pipe (1) formation; It is characterized in that:, be connected with strainer body (6) at described lower shell body (11) and the involutory intracavity bottom that connects and composes of upper shell (2); Described strainer body (6) intracavity bottom is provided with precipitation through hole (10), communicates with lower shell body (11) bottom; On the hollow shape filter screen bearing (8) that described strainer body (6) inner chamber is equipped with, be connected with filter screen (7); Described filter screen bearing (8) lower end surface is the through hole shape, communicates with strainer body (6) bottom; In described filter screen bearing (8) upper end portion, be connected with through hole shape filter screen end caps (5); In described upper shell (2) inner chamber top, bend pipe (3) one ends that are connected with link to each other with suction tude (4), and the upper end hole of its other end and hollow shape filter screen bearing (8) joins.

2, oil bath type wire netting air-strainer according to claim 1, it is characterized in that: being connected with the link position direction of suction tude (4) and steam outlet pipe (1) on the described upper shell (2), is respectively the wherein a kind of of horizontal, vertical configuration or skewed connection.

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