DE102004026105A1 - Intake device for internal combustion engine of motor vehicle, has connection room and air outflow route which are arranged at connection direction of air inlet path with respect to dirty side room - Google Patents

Abstract

A connection room (15) and an air outflow route (16) are arranged at the connection direction of an air inlet path (12) with respect to a dirty side room (13). The main body part has an air inflow opening (11) and the air outflow opening. A communication hole (33) is formed at an attachment frame (32) of a filter (30).

Description

The The invention relates to an intake air device for internal combustion engines.

at Vehicles in recent years is a trend to see the Thereby increasing engine power that several Air quantities fed into the cylinder be increased by the intake air device and thus more volumetric Efficiency is increased. And there is also a case where several Air quantities fed into the cylinder be connected by the intake air device with supercharger and airs urgently forced into it are. In recent years, however, bring due to high technology from vehicle controls changes with yourself, that places yourself forward and backward or left and right in the engine compartment narrow. Therefore, when installing the intake air device in engine compartment demanded that the desired engine power Fulfills and the possibility of interpretation is increased, By wasteful components or gaps are reduced as possible. In particular when the intake air device on the upper part of the internal combustion engine feels upset, there were re the design problems, since the intake air device so positioned had to be, on the one hand the intake air capacity the intake air device are ensured and on the other hand their Holding down altitude the arrangement of related Facilities in the area had to be determined.

To the For example, the intake air device typically includes an air filter on, the dusts from three components of a lower housing, an upper housing and an intermediate clamped filter part, and a Schmutzigseiten- (dust side) Chamber is designed by clamping the filter in the lower area, and a clean side chamber is designed in the upper area. It can be Drain water from a water extraction hole provided in the lower housing is by collecting water in the lower dirt side chamber is, even if water in mixed with air intake penetrates. If the above-described intake air device on the upper part of the internal combustion engine However, it was not favorable because of the height of the internal combustion engine increases by leaving an air outlet is designed on the top of the intake air device, the purified Air ventes. There was also a case where sufficient Intake air capacity is not can be ensured to the height of the intake air device hold down. Therefore, such an intake air device is required with their help the sufficient Ansaugluftkapazität ensured and thus the height held down the air outlet can be, even if the intake air device on the upper part the internal combustion engine is placed in the vehicle, as well as the design option can be increased so that the Arrangement design with related facilities in the Environment gets better.

As related The prior art is an air filter known on one side the air filter with an air inlet and an outlet is provided such that cleaned Air coming from the lower case through filter part to the upper housing fluently is filtered, in turn from the upper housing into the lower housing leading back, from the lower case is drained (see, for example: Patent 1 to 3). None of the Previous examples described in Patent Documents 1 to 3 provided the above-described intake air devices available. To the Example in the previous example described in patent document 1 Although the intake air device is designed so that air flow, the height the intake air device is filtered low, on the input side is reversed, but since they are from the air intake and air outlet outlet arranged deviating, there was in setting the arrangement with related Facilities in the area fears that useless Rooms would arise. Further in the previous example described in Patent Document 2 is the Although intake air device designed so that the design possibility with related Facilities in the area the height of the air outlet but the sufficient intake air capacity was difficult to ensure. Furthermore, in the previous example described in patent document 3 Although the intake air device is designed so that the assurance of Ansaugluftkapazität possible and the air flow is reversibly returned to the entry side, but since they are on the top of the internal combustion engine in the vehicle her shape was not favorable to the height of the intake air device hold down.

In recent years, such an example (see, for example, Patent Document 4) is now known in which economical interior design, reduction of a number of components, and engine mounting capability are increased to increase the design capability of the intake air device by providing peripheral components of intake air duct such as air filters, Resonator and the like by means of plastic technology, ie by means of technology with which several components can be integrally formed, are designed in one piece (see, for example, patent document 4). However, in the previous example described in Patent Document 4, problems have remained with regard to providing the above-described intake air device: That the related devices such as air intake duct, resonator, and the like are only used with Hil Although the number of components, play and the like can be reduced in one piece by the use of plastic technology, in contrast to this it leads to an increase in assembly, and thus flexibility of the design is also lost.

• Patent document 1: Japanese Utility Model Laid-Open Publication 556-63842
• Patent document 2: Japanese Patent Laid-Open Publication H2-163453
• Patent 3: Japanese Patent Laid-Open Publication 2000-87815
• Patent 4: Japanese Patent Laid-Open Publication H11-125158

The Invention is made in light of the above, and The invention is based on an object, an intake air device to disposal to provide with their help the sufficient intake air capacity if they can on the top of the internal combustion engine is placed in the vehicle, and the design possibilities are increased so can that the Arrangement design with related facilities in the Surroundings the height of Air drain output is getting better.

As Means of solution The object of the invention is described in the claim 1 Invention characterized in that the intake air device for internal combustion engine, which is placed on top of an internal combustion engine, with a box-shaped Main body portion, in which an air inlet and an air outlet outlet are designed with a plate-shaped filter part, which is installed at an opening for filters is that on the surface of the main body part is designed, as well as with a cover that with the previously described Main body part is so connected that the Filter part is covered, wherein in the previously described filter part a through hole is formed on a mounting frame, the between the main body part and the cover member is clamped, and thus in the previously described Main body part one Dirty-side chamber, which accommodates the lower part of a filter material, installed on the above-described mounting frame Luftzuflußeingang, the between the dirty side chamber and the previously described Air intake entrance communicates, a connection chamber with the above-described through hole communicates, as well as an air drainage channel, between the previously described Connecting chamber and the previously described air outlet communicate, are designed, and further that the above-described connection chamber and the above described air discharge passage in the connection direction of the previously described Luftzuflußkanals against the previously described Dirty-side chamber are arranged.

at this version let yourself provide an intake air device available, their interpretation possibility so increased will that the Height of Air drain output is held down to the filtered overhead stream turn down again, though they are on the top of the Internal combustion engine is launched that required intake air quantities be ensured by two-stage clean-side chamber of two inner clear composed of cover and connecting chamber, and further that the Arrangement design with peripherals in the environment gets better to the air supply channel, the air outlet and the like in the vicinity of the filter part of the relatively larger shape to arrange intensively.

Furthermore is the invention described in claim 2 when in claim 1 Described characterized in that the previously described Schmutzigseiten chamber is designed approximately rectangular in plan, and that the previously described Connecting chamber and the above-described through hole along Peripheral wall of the longer Side of the above-described Schmutzigseiten chamber are designed.

at this version let yourself the area required for the filtration function of the filter material on Filter part along the longer Ensure side of dirty side chamber and also that required to the air outlet channel area make sure, but also the cover part, the through hole and the filter part covers, can be made smaller by the fact that the connecting chamber and the through hole are arranged to bring the filter part into proximity.

Farther the invention described in claim 3 is in claim 1 or 2 described characterized in that the above-described mounting frame and the above-described filter material from the installation side of the previously described Luftzuflußkanals from to the installation side extend the previously described air outlet channel, wherein the Installation position in upward or downward pointing Direction against the previously described mounting frame of the previously described Filter material is designed inclined so that the installation side of previously described Luftzuflußkanals is higher than that of the previously described air outlet channel.

In this embodiment, the height of the intake air device can be kept down and thus the entire surface of the filter material for filtration to effectively use the function within a limited space.

Farther is the invention described in claim 4 in one of claims 1 to 3 described characterized in that in the above-described main body part the previously described Luftzuflußkanal and the above-described air discharge channel on one side back on the previously described air inlet entrance side are arranged, and that the previously described air outlet in the opposite direction to the previously described air inlet open is.

at this version can be the air inlet and the air outlet outlet on the shortest Arrange path side by side, arranged by the Luftzuflußkanal and the air outlet channel fitting are, and also can be a room in which peripheral devices are installed, thereby acquire that depression on the side of the air outlet of the main body part is designed.

Farther is the invention described in claim 5 in one of claims 1 to 4 described characterized in that the peripheral wall of the longer side the previously described dirty side chamber parallel to Crankshaft of the above-described internal combustion engine extends and thus the interface of the previously described main body part and the above-described cover member in the vehicle-mounted State of the above-described internal combustion engine compared to a Side, in which the previously described Luftzuflußkanal and the previously described Air spillway are arranged so inclined that the opposite side of the Luftzuflußkanals and the air outlet channel in lower position.

at this version let yourself the intake air device along the upper part of the internal combustion engine Arrange so useless Gaps do not arise, and thus can replace the filter part and the Cover are easily made during maintenance by Gaps between components on the top of the cover part of the intake air device are arranged, are enlarged.

Farther is the invention described in claim 6 in one of claims 1 to 5 described characterized in that the above-described air supply inlet and the air outlet outlet on one and the same axis.

at this version let yourself also the intake air device, which has the shorter intake air path of duct has, easier to install.

Farther is the invention described in claim 7 in one of claims 1 to 6 described characterized in that the above-described Luftzuflußkanal and the previously described Schmutzigseiten chamber approximately L-shaped with each other communicate, and that the previously described air outlet channel and communicate the above-described connection chamber approximately L-shaped with each other.

at this version let two chambers be arranged close by that the two chambers about L-shaped are designed when these chambers on both the dirty side and also on the clean side by dividing the inside of the main body part are designed.

Farther the invention described in claim 8 is characterized that intake air device for internal combustion engine, which placed on the top of the internal combustion engine is, and which an air inlet, an air inlet channel, a filter part, an air flow channel and an air outlet outlet wherein between the above-described air supply inlet and the previously described filter part, a dirty side chamber is provided that between the previously described filter part and the previously described Luftabflußausgang two clean-side chambers are provided, that the above-described Schmutzigseiten chamber and the upstream side clean side chamber up or after arranged at the bottom of the previously described filter part fitting. are, and that in Connection direction to the previously described air supply channel against the previously described dirty side chamber, the downstream side clean side chamber and the above-described air discharge passage are arranged.

at this version let yourself provide an intake air device available, their interpretation possibility so increased will that the Height of Air drain output is held down to the filtered overhead stream turn down again, though they are on the top of the Internal combustion engine is launched that required intake air quantities be ensured by putting two-stage clean side chamber together is, and further that the Arrangement design with peripherals in the environment gets better to the air supply channel, the air outlet and the like in the vicinity of the filter part of the relatively larger shape intensively to arrange.

And the invention described in claim 9 is in one of claims 1 to 8 Beschrie characterized in that the above-described internal combustion engine is disposed horizontally in the vehicle and provided with a supercharger in its front, that the above-described filter part is positioned rearwardly on the above-described internal combustion engine, and that the above-described air supply inlet and the previously described Luftabflußausgang be positioned forward.

at this version let yourself the design possibility increase, because the air outlet and the supercharger over the relatively shorter Path can be interconnected and thus useless spaces eliminated could be, although the intake air device on the top of the with supercharger provided internal combustion engine is launched.

The intake air device according to the invention for internal combustion engine is basically designed as described above, but this internal combustion engine should not be restricted to supercharged internal combustion engines, but other combustion engine can also be used. And advantageously, although the air supply inlet and the air outlet outlet placed on one and the same axis, but it is also possible theirs If necessary, adjust installation positions accordingly. When making recesses on the air outlet exit side, open the air outlet channel one side of the air inlet arranged, may be the way of contiguous Institutions that are included in this recess, not limited be, and with it also other facilities are arranged as air flow meter. Furthermore, need in this intake air device of the air inlet channel and the air outlet not always to one side of the Luftzuflußkanals to arrange, but the coherent ones Facilities can be arranged in those wells, which between the air inlet channel and the air outlet is provided. And also can the coherent ones Facilities in the main body part integrating one piece available be put. But also can Ansaugluftmengen not only be increased by the fact that the depression in the main body part is provided, but also in that the width of Luftzuflußkanal and Luftauflußkanal designed more larger is. And also, the inside of the main body part does not always become two chambers but it may for example add a resonator chamber into three or more chambers are divided.

In the following, the advantageous embodiments of the invention will be explained with reference to the accompanying drawings:
First, an exemplary embodiment of the intake air device for internal combustion engine, which relates to an embodiment of the invention, with respect to 1 and 2 be explained.

In the embodiment shown in Figure internal combustion engine E is installed together with gear T lying in the engine compartment R, with the dashboard 8th , Bonnet 9 and the like is enclosed in the front vehicle. Although the internal combustion engine E has intake air device 1 in order to supply air from the outside of the vehicle to the cylinder, but the air taken in from the outside of the vehicle is in the illustrated embodiment, as shown by arrow A1, from the right-side air inflow entrance 11 taken inside by the intake air device 1 is placed on the top of the internal combustion engine E. The intake air device 1 has in its interior a filter part, with the aid of which air flow is filtered, and thereafter, as shown by arrow A7, it is from the left-side air outlet 17 drained.

Now In the present specification, the term "intake air device" means a device to understand, with whose help air of the internal combustion engine supplied is, and has a function by the dusts in the Air can be taken out, and advantageously it is an air filter. even Understandably can other functions than those described above are provided.

In recent years, in vehicles, various devices such as a device which can increase volumetric efficiency of the intake air device, or superchargers and the like are incorporated to increase the engine output. For example, in an embodiment shown in FIG., Intake air quantities are detected by "air-flow meter" 2, which is immediately after the air discharge passage 17 is provided. And to increase the power of the air flow, as shown with arrow A8, the supercharger 3 it flows in, and after increasing the pressure it continues, as with arrow 9 shown the front intercooler 4 inflowed, so that air temperature, which is increased by pressure, is cooled. And then there's airflow coming out of the intercooler 4 has flowed off, as shown with arrow A10, in the intercooler output channel 5 flowed, and then, after the rear, shown in arrow A11 intake manifold 6 flowed, and finally to each cylinder of the internal combustion engine 1 distributed.

As described above, there is a design that the intake air device 1 with regard to the arrangement of hanging one directions in the environment is placed on the top of the internal combustion engine E, since with high technology of vehicle controls various additional facilities and the like are launched and associated with front and rear or left-side and right-side places in the Motoraaum R have become very close. There were advantages in terms of reducing a number of components by arranging the intake air device 1 arise, such as: it can get along without using bonnet, but on the contrary, there are also design problems that usually the height of the intake air device 1 in terms of gaps between hood 9 , related facilities 5 and the like, and that the better arrangement of the related equipment in the environment ensures the intake air capacity is very difficult.

Therefore, the embodiment of the present invention is designed so that upon application of the intake air device 1 on the upper part of the internal combustion engine E, the air inlet 11 the intake air device 1 and the air outlet outlet 17 are arranged on one and the same position in the sense of height direction, and thus the height of the intake air device 1 is held down. But it should be excessive reduction of the intake air structure 1 be avoided, so that volumetric efficiency can not be reduced. In addition, the design possibility can be improved so that the Luf tzuflußkanal, the air outlet channel and the like are placed in the vicinity of the filter part intensive and thus the arrangement design of related facilities in the area is improved.

It demonstrate:

1 a side view, in which an intake air device is shown, which is placed on the upper part of the internal combustion engine;

2 a supervision in 1 ;

3 an oblique view in which the intake air device in 1 is shown;

4 a disassembled oblique view in 3 ;

5 a supervision in 3 ;

6 a cross section along the line VI-VI in 5 ;

7 a cross section along the line VII-VII in 5 ;

8th a cross section along the line VIII-VIII in 5 ;

9 a view in which an embodiment other than those in 4 shown intake air device is shown.

The following is the intake air device 1 relating to an embodiment of the present invention with respect to 3 to 9 be explained in more detail:

3 shows in an oblique view intake air device 1 as a unit in 1 and 2 is shown. 4 shows a disassembled oblique view, in which the internal structure of this intake air device 1 is shown. As shown in these figures, the intake air device 1 a box-shaped main body part ( 1 , Casing) 10 on, and this main body part 10 is with an air inlet 11 and an airflow outlet 17 Provided. The main body part 10 , on the surface of which opening 21 designed for filters, installed inside a plate-shaped filter part 30 , In addition, cover part (2nd housing) 40 so with the main body part 10 connected that he the filter part 30 from the top covers. And filter material 31 is on the filter part 30 via mounting frame 32 installed, and in the main body part 10 is dirty side chamber 13 designed, which is a lower part of the filter material 31 picks up on the mounting frame 32 installed, and clean-side chamber 14 is in the upper cover part 40 designed. This forms air, which from the air inlet 11 out, a purified stream in this upper clean-side chamber 14 by filtration by placing in the air inlet channel 12 flows into the dirt side chamber as well 13 flows through and through the filter part 30 passes. As previously described, in that the lower part of the intake air device 1 as dirty side chamber 13 and its upper part as a clean-side chamber 14 is designed, can be water in the dirty side chamber 13 collect and from water extraction hole, in the lower part of the intake air device 1 is provided, drain, even if water is mixed in intake air. But in that the intake air device 1 is placed on the top of the internal combustion engine E, the water extraction hole, for example, in a preliminary stage, in which the air from the air inlet 11 into the intake air device 1 is sucked in, be provided on the intake passage or on the way of the intake air passage.

As in 1 and 2 shown, purified stream passing through the intake air device 1 is filtered, in the advantageous embodiment of the invention after measurement by means of air flow meter 2 the supercharger 3 and the intercooler 4 flowed in. It is desirable in that the purified stream from the air outlet 17 drain off, bringing these facilities and the like in the vicinity, easy to carry out pipelines and reduce useless gaps. This is through hole 33 on the mounting frame (filter housing) of the filter part 30 designed, which in an advantageous embodiment of the invention between the main body part 10 and the cover part 40 is clamped, and in that through-hole 23 and connecting chamber (2nd clean-side chamber) 15 are designed so that they on the main body part 10 side with the through hole 33 can communicate, the purified stream, which is in the upper clean side chamber 14 is formed, return down. The purified stream entering the main body part 10 is attributed to flow in the connection chamber 15 along the air outlet channel 16 flowing out of air outlet 17 drained. In the manner described above, the air outlet can be 17 at the same low position as the air inlet 11 ausgestalt and thus the height of the intake air device 1 be held down. And thus can be when installing the intake air device 1 on the top of the internal combustion engine E facilitate engagement with upper components 5 the internal combustion engine, the hood 9 and the like to avoid.

Furthermore, on the one hand, the height of the intake air device can be 1 hold down, and on the other hand, the required air filter capacity can ensure that two clean-side chambers 14 . 15 between the filter part 30 and the air outlet 17 are designed. In this case, in the advantageous embodiment of the invention, the connection chamber 15 and the air outlet 16 in the direction of connection to the air inlet channel 12 against the dirty side chamber 13 arranged. Advantageously, the connecting chamber 15 and the air outlet 16 arranged such that air supply channel 12 and peripheral wall 18 are common, and the internal structure of the intake air device 1 are determined so that the Luftzuflußkanal 12 , the connection chamber 15 and the air outlet 16 in the vicinity of the dirty side chamber 13 are arranged intensively. This allows reduction of the intake air device 1 make such that useless gaps do not arise, and thus the design possibility can be increased so that the arrangement design is improved with the related facilities in the area.

In this case, intake-related components can be located in the vicinity of the intake air device 1 compactly assemble when air inlet 11 , which is connected to the upstream intake channel, on the right side of the air supply channel 12 is open, and air outlet 17 , the airflow meter on the downstream side 2 , the supercharger 3 and the like, on the left side of the air discharge passage 16 is open. In addition, the position can be reduced in both elevation directions when the air inlet 11 and the air outlet outlet 17 on one and the same axis next to each other and in the front of the internal combustion engine E are arranged.

Furthermore, the main body part forms 10 advantageously made of heat-resistant plastic component, since it is placed on the upper part of the internal combustion engine E. In this case, the main body part 10 be formed of one-piece component _; or it may be composed of combination with two or more components. In the latter case, the main body is part 10 for example, as in 4 shown, assembled so that two components 19 . 20 of lower housing (lower part) 19 and upper housing (upper part) 20 superimposed on each other. This will be the lower case 19 and the upper case 20 advantageously welded to ensure umluftdichte arrangement. However, any sealing elements between the lower housing 19 and the upper case 20 be interposed. But also can the lower case 19 and the upper case 20 freely separable one-piece be installed. Also, the inside of the main body part 10 though by peripheral walls (separation means) 13a . 18 in two chambers, namely in Schmutzigseiten chamber (Luftzuflußkanal 12 , Dirty side chamber 13 ) and clean-side chamber (connecting chamber 15 , Air outlet outlet 16 ) but these peripheral walls 13a . 18 can also with the main body part 10 be designed in one piece as well as on other parts. In addition, the main body part 10 , as in 5 shown with built-in part 28 on the side part of the main body part 10 provided, with the help of screw for fastening and the like, fixed on the top of the internal combustion engine E, but the number and size of this component 28 can be arbitrarily selected and they are determined according to embodiments accordingly.

As described above, the height of the intake air device can be adjusted 1 in the advantageous embodiments according to the invention hold down so that the intake air device 1 mainly of four components, ie three components of lower housing 19 , Upper case 20 and filter part 30 plus cover 40 is compiled that air that in the main body part 10 flows, with the filter part 30 is filtered, that the filtered current after flowing into the cover 40 again in the main body part 10 turned back and that the filtered stream from the air outlet 16 which in the main body part 10 is designed, drained. Also, the installation with the related facilities can be facilitated by the fact that the air supply flow channel 12 and the air outlet 16 are arranged intensively. At this time, the intake air capacity is allowed on the clean side of the intake air device 1 increase since the connecting chamber ( 2 , Clean side chamber) 15 that with the clean side chamber 14 communicates, in the main body part 10 is provided. And there the connection chamber 15 can also be regarded as an extended resonator, noise of a certain frequency can be reduced due to the Helmholtz resonance principle in that the size of the through hole 33 and the capacity of the connection chamber 15 are set accordingly. In addition, can be a special holder, the connecting chamber 15 fastened holds, fastening bolts and the like, or unnecessary games compared to that of the connecting chamber 15 as a divisional intake air device 1 is intended to reduce.

The dirty side chamber 13 can now be configured in any shape, and in the advantageous embodiment of the invention, the dirty side chamber 13 , as in 4 g., roughly rectangular in plan. And the connection chamber 15 and the through hole 33 are along the peripheral wall 13a the longer side of the dirt side chamber 13 designed. In this case, the required filtration area can ensure such that the filter material 31 of the filter part 30 is designed as a rectangular shape that extends along this longer side. And also, the required channel area in the air outlet channel can be ensured. In addition, the shape of the cover can be 40 that the filter part 30 and the connection chamber 33 covers, zoom out.

It is advantageous, as in 4 shown when the filter material (filter element) 31 on the mounting frame 32 of the filter part 30 is installed so that it is from the arrangement side of the Luftzuflußkanals 12 to the arrangement side of the air outlet channel 16 extends. This is the filter material 31 Although a required area of action (filtration area) is available so that filtration paper is formed by various bending, but in the embodiment of the present invention, the filter material to be used 31 not be limited in one way, but it is possible to use various filter materials. And also by separable design of the cover 40 from the main body part 10 it is possible to clean or replace the filter material 31 , which is arranged inside, facilitate, but the installation of the cover 40 with the main body part 10 It should not be limited to any particular means, but it can be done by any means. For example, the main body part 10 and the cover part 40 freely separable one-piece assembly, with the help of clamp-shaped part 29 desired number of spring clips and the like or fastening means such as bolts and the like.

The installation position in upper and lower directions against the mounting frame 32 of the filter material 31 is now advantageously, as in 6 shown inclined so that the arrangement side of the Luftzuflußkanals 12 is higher than the arrangement side of the air outlet channel 16 , Due to the fact that the filter material 31 in the manner previously described against the mounting frame 32 installed inclined, can be the cross-sectional area of the passage, the Luftzuflußkanal 12 to the dirty side chamber 13 leads, as in 7 shown, without the height dimension of the main body part 10 and the cover part 40 and thus also the cross-sectional area of the passage, that of the clean side chamber 14 to the connection chamber 15 leads, as in 8th shown, enlarge. In addition, the air can be up to the end portion of the filter material 31 flow easier, hence the height of the intake air device 1 hold down and ensure the required filtration area in the limited space.

Furthermore, the air supply channel 12 and the air outlet 16 advantageously, as in 4 shown, arranged on one side, in which the air inlet duct 12 in the extending direction of the peripheral wall of the longer side of the dirty side chamber 13 is arranged. And in the air outlet 16 is air outlet outlet 17 on mutual outer wall surface of the air supply channel 12 arranged side, opened. By the design made in the manner described above can be, as shown with reference numeral S, depression (gap) on the air outlet channel 16 of the main body part arranged side, and in this recess S can be facilities that the air flow meter on the lower side channel 2 and the like are installed, and in view of the design possibility, useless voids can be reduced, and piping from the air discharge outlet 17 shorten to this bottom side.

As described above, the dirty side chamber is 13 advantageously designed approximately rectangular in plan view, and on the one end portion side of the air supply channel 12 roughly rectangular communicates. Thus form the air supply channel 12 and the dirty-side chamber 13 in the embodiment shown in Figure an approximately L-shaped space (chamber). And in that the connecting chamber 15 and the air outlet 16 Along this approximately L-shaped side portion are also arranged approximately L-shaped fitting, is gap S, located in the main body part 10 recessed inside, designed, and the adjacent arranged facilities (air flow meter 2 ) and the like They are included in this gap.

Furthermore, the peripheral wall extends 13a the longer side of the dirt side chamber 13 when placing the intake air device 1 on the upper part of the internal combustion engine E approximately parallel to the crankshaft 7 (see. 1 ) of the internal combustion engine E, and when installed in the vehicle state of the internal combustion engine E is the connection surface 22 of the main body part 10 with the cover part 40 inclined so that opposite one side (front), in which the air supply channel 12 and the air outlet 16 are arranged, the opposite side (back) is down. As described above, by the inclined design of the connection surface 22 of the main body part 10 and the cover part 40 is the gap between components (eg intercooler output channel 5 , Bonnet 9 and the like) on the top of the cover 40 are arranged, enlarged, and by handling the clamp molding 29 From above-described spring clip and the like can be detachment of the cover 40 and the filter part 30 easier to carry out during maintenance work.

In the manner described above, the filter part can be 30 the intake air device 1 position in the embodiment according to the invention to the rear, and in positioning the air inlet 11 and the air outlet outlet 17 forward is the intake air device 1 bent in a side view of a circular arc and placed along the upper part of the internal combustion engine E. Therefore, the installation can be carried out so easily that the air outlet outlet, the charger is placed near bringing, and between the intake air device 1 and the internal combustion engine E can be omitted useless gap and thus maintenance of the intake air device 1 facilitate.

As described above, the advantageous embodiments of the present invention are explained here, but also it is possible to make various changes to the above-described advantageous embodiments. For example, the internal combustion engine E to be used in the embodiment shown in FIG. 1 has a supercharger, but also the intake air device relating to the embodiment of the invention 1 can be used in other internal combustion engine E, which is not provided with supercharger. In addition, a device other than air flow meter 2 in the recess S of the intake air device 1 to be ordered.

The intake air device 1 can also be provided with crankcase breather (PCV) and also have means by which unfired gases that blow from the gap between not shown baskets and cylinders into the crankcase (blow-by gases), are returned to the suction side, and then they returning to the combustion chamber to re-fire. However, PVC functions in such a way as to be incorporated in the same way as in the prior art, and in view of the design of the patent claims according to the invention it may under no circumstances be limited, and thus more detailed explanations may be omitted.

Furthermore, the installation position of the air supply inlet 11 and the air outlet outlet 17 be adapted in relation to the arrangement of the related devices and the like in the environment. For example, the air inlet needs 11 that in the main body part 10 is provided as in 3 shown not always open to the right side, and it can be opened, for example, to the front or towards the front or back inclined. Also, the air outlet exit 17 does not always need to open to the left side, and it may be opened, for example, forwardly, forwards, or backwards. But also need the air supply channel 12 and the air outlet 16 in the intake air device 1 not always on the one side of the air inlet 11 side to arrange, and for example by designing the depression part S between the air inlet channel 12 and the airflow channel 16 For example, devices such as resonators and the like can be arranged in their gap. But also can facilities such as air flow meter 2 and the like in the main body part 10 integrating be made available in one piece. In addition, by wider design of widths of the air supply channel 12 and the air outlet channel 16 intake air quantities can be increased without the depression part S in the main body part 10 to design.

Furthermore, the design of the main body part 10 not always limited to the fact that its interior is divided into two chambers, but the interior of the main body part 10 can also, as in 9 shown to be divided into three chambers. In this case, noise of a certain Fraquenz example, by further installation of the extended resonator (connection chamber) 50 be further reduced due to the Helmholtz resonance principle. In this case, intake noise by switching control of the through hole 51 According to the speed range of the engine can be reduced by that Ansaugpulsierung changes according to a predetermined speed range of the engine. Or other related facilities may be in this chamber 50 be recorded. However, the shape and position of these chambers are in 9 shown only schematically, and determined in accordance with embodiments accordingly and thus it may by no means be relied on in 9 shown embodiment are limited.

There the present invention an intake air device for internal combustion engine, As described above, is possible, an intake air device to disposal to ask: It can be provide an intake air device available, their interpretation possibility so increased will that the Height of Air outlet downheld will turn back to the filtered current that has been drained upwards let down, though they are on the top of the internal combustion engine is placed on that required intake air quantities be ensured by two-stage clean-side chamber of two internal spaces of Cover part and connecting chamber is assembled, and further that the Arrangement design with peripherals in the environment gets better to the air supply channel, the air outlet and the like in the vicinity of the filter part of the relatively larger shape to arrange intensively.

at the invention described in claim 2, in addition to the effects described above, the required area of the Filter material, the filtration function on the filter part along the longer one Side of the dirty side chamber is needed, secured and also the required channel area to the air outlet be ensured, and by arranging the connection chamber and bringing the passage-hole close to it Cover part, which covers the through hole and the filter part, zoom out.

at the invention described in claim 3, in addition to the effects arising from claim 1 or 2, the height the Ansaugluftvorrichtung held down and thus in a limited space the full surface the filter material to be effectively utilized for filtration function.

at The invention described in claim 4, in addition to the according to the of claims 1 to 3 described invention unfolding effects, the air inlet inlet and the air outlet outlet by adjacent arrangement of the Luftzuflußkanals and the air outlet channel the shortest Be arranged side by side, or spaces where the peripherals can be installed also by the fact that the Groove part on the air outlet exit side of the main body part is designed.

at the invention described in claim 5, the intake air device, additionally according to the one of claims 1 to 4 described invention unfolding effects, along the Shell form of the internal combustion engine are arranged such that useless Gaps do not arise, and by enlarging the gaps between the components on the top of the cover part of the intake air device are in the mood, it is possible replacement the filter part of the cover easily perform during maintenance.

at the invention described in claim 6, the intake air device, additionally according to the one of claims 1 to 5 described invention unfolding effects, by flow movement of air flow, which flows from the intake air duct, as well of purified stream after filtration on one and the same Axis also in shorter Intake air path of channel can be easily installed.

at the invention described in claim 7, two chambers, in addition to according to the one of claims 1 to 6 described invention unfolding effects, in design of these two chambers by distributing the interior of the main body part in the dirty side and the clean side in the vicinity be arranged so that the two chambers about L-shaped are designed.

at the invention described in claim 8, the height of the air outlet be held down to turn the upwardly drained stream again let down, albeit on the top of the internal combustion engine is on, and thus can also the required intake air quantities be ensured so that the two-stage clean-side chamber designed is, and further, the intake air device can be provided With their help, the design possibilities are increased in such a way can be that the Arrangement design with the related facilities in the Environment is improved, around the air inlet duct, the air outlet duct and the like in the vicinity of the filter part of the relatively larger shape to arrange intensively.

at the invention described in claim 9, the Luftabflußausgang and the supercharger, in addition according to the one of claims 1 to 8 described invention unfolding effects when applied the intake air device on the top of the supercharged Internal combustion engine, on shorter way be communicated, and thus can be the possibility of interpretation increase, without useless spaces to emerge.

e

Internal combustion engine

T

transmission

R

engine compartment

1

Ansaugluftvorrichtung

10

Main body part (1st case)

11

Luftzuflußeingang

12

Luftzuflußkanal

13

Schmutztigseiten- (Dust side) chamber

13a, 18

peripheral wall (Separation means)

14

Clean side chamber

15

connecting chamber (2nd clean-side chamber)

16

Air spillway

17

Air drain output

19

Lower housing (lower part)

20

Upper housing (upper part)

30

filter part

31

filter material (Filter element)

40

cover (2nd case)

Claims (9)

An intake air device for internal combustion engine, which is superposed on top of an internal combustion engine, comprising a box-shaped main body part in which an air inlet and an outlet outlet outlet are designed, with a plate-shaped filter part, which is installed at an opening for filters, which is designed on the surface of the main body part, and a cover member connected to the above-described main body member so as to cover the filter member, characterized in that in the above-described filter member, a through hole is formed on fixing frames sandwiched between the main body member and the cover member and thus in the above-described main body member Dirty-side chamber receiving lower part of a filter material installed on the above-described mounting frame, an air supply inlet connected between the dirty-side chamber and the above-described air supply In addition, the above-described connecting chamber and the above-described air discharge passage in the connecting direction of the above-described Luftzuflußkanals against the above-described Schmutzigseiten Chamber are arranged. Intake air device for internal combustion engine according to claim 1, characterized in that the previously described Schmutzigseiten chamber is designed approximately rectangular in plan, and that the previously described Connecting chamber and the above-described through hole along Peripheral wall of the longer Side of the above-described Schmutzigseiten chamber are designed. Intake air device for internal combustion engine according to claim 1 or 2, characterized in that the previously described Mounting frame and the previously described filter material itself from the installation side of the above-described air supply passage from to the installation side of the previously described air outlet channel extend, with the installation position in upward or respectively downwardly facing direction against the previously described mounting frame the previously described filter material is inclined so that the Installation side of the previously described Luftzuflußkanals is higher than that of the previously described air outlet channel. Intake air device for internal combustion engine according to one of claims 1 to 3, characterized in that in the above-described main body part the previously described Luftzuflußkanal and the above-described air discharge channel on one side back on the previously described air inlet entrance side are arranged, and that the previously described air outlet in the opposite direction to the previously described air inlet open is. Intake air device for internal combustion engine according to one of claims 1 to 4, characterized in that the peripheral wall of the longer side the previously described dirty side chamber parallel to Crankshaft of the above-described internal combustion engine extends and thus the interface of the above-described main body part and the above-described cover member when installed in the vehicle the above-described internal combustion engine compared to a Side, in which the previously described Luftzuflußkanal and the previously described Luftauflußkanal are arranged so inclined that the opposite side of the Luftzuflußkanals and the air outlet channel in lower position. Intake air device for internal combustion engine according to one of claims 1 to 5, characterized in that the above-described air supply inlet and the air outlet outlet on one and the same axis. An internal combustion engine intake air device according to any one of claims 1 to 6, characterized in that the above-described air supply passage and the above-described dirty side chamber communicate with each other in an approximately L-shape, and in that the above-described air exhaust Flow channel and the above-described connection chamber communicate approximately L-shaped with each other. Intake air device for internal combustion engine, which placed on the top of an internal combustion engine is, and which an air inlet, an air inlet duct, a filter part, an air outlet channel and an air outlet outlet characterized in that between the previously described Air inlet and the previously described filter part provided a dirty side chamber is that between the previously described filter part and the previously described Luftabflußausgang two clean-side chambers are provided, that the above-described Schmutzigseiten chamber and the upstream side clean side chamber up or after arranged at the bottom of the previously described filter part fitting are, and that in Connecting direction after the previously described air supply channel against the previously described dirty side chamber, the downstream side clean side chamber and the above-described air discharge passage are arranged. Intake air device for internal combustion engine according to one of claims 1 to 8, characterized in that the above-described internal combustion engine is arranged lying in the vehicle and in its front with a charger is provided that the previously described filter part to the rear on the previously described Internal combustion engine is positioned, and that the above-described Luftzuflußeingang and the previously described air outlet port positioned forward is.