JP2001115910A - Atomospheric air intake device in vehicular internal combustion engine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily remove a filter element 10 in an air cleaner 7 in which a clean side case 8 and a dust side case 9 composed to be separated from each other on the right and the left are coupled with each other having the filter element 10 between them. SOLUTION: A dust side case 9 in the air cleaner 7 is installed on an internal combustion engine or a car body frame or the like, the clean side case 8 is detachably coupled with the dust side case 9, and a gasket part 21 of soft elastic material around the filter element 10 is engaged in the clean side case 8 to be installed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for introducing atmospheric air into an internal combustion engine mounted on a vehicle through an air cleaner.

[0002]

2. Description of the Related Art In general, this type of atmospheric air intake device is provided with an air cleaner having a clean side case and a dust side case detachably connected to each other with a filter element interposed therebetween. An air duct pipe having an intake port for atmospheric air is connected to the tip, and an intake pipe to the internal combustion engine is connected to a clean side case of the air cleaner.

[0003] In this case, Japanese Patent Application Laid-Open No. Hei 8-3 as a prior art is used.
Japanese Patent No. 26614 discloses an air cleaner in which a clean side case and a dust side case are separated in the left-right direction by making a joining surface thereof a vertical direction. On the other hand, it is proposed that the dust side case be attached to and detached from the clean side case as a lid of the air cleaner.

[0004]

However, in this prior art, a gasket portion made of a soft elastic body around a filter element sandwiched between both cases is attached to an internal combustion engine or the like of an air cleaner. When the dust side case which is the lid of the air cleaner is removed, the filter element is attached to the clean side case attached to the internal combustion engine or the like. Therefore, since the removal of the filter element requires removal of the filter element from the clean side case in addition to removal of the dust side case which is the lid, the workability is reduced. There was a problem of bad.

In the prior art, among the thickness dimensions of the filter element sandwiched between the two cases, the dimension to be inserted into the dust side case as the lid is set in the clean side case as the main body. The filter element which is larger than the dimension to be inserted, in other words, is configured to insert the filter element largely into the dust side case, so that when the dust side case is removed from the clean side case, the filter remaining on the clean side case side. Of the thickness of the element, the size to be inserted into the dust side case is large, so the dust side case must be moved largely in the lateral direction,
Since it is necessary to secure a space for laterally moving the dust side case on the side of the dust side case, there is a problem in that the air cleaner cannot be arranged in a narrow place.

An object of the present invention is to solve these problems.

[0007]

SUMMARY OF THE INVENTION In order to achieve this technical object, the present invention provides an air cleaner in which a clean side case and a dust side case configured to be separated in the left-right direction are connected with a filter element interposed therebetween. Atmospheric air intake apparatus comprising: an air duct pipe having an intake port for atmospheric air at a tip thereof connected to a dust side case of the air cleaner; and an intake pipe to an internal combustion engine connected to a clean side case of the air cleaner. , One of the clean side case and the dust side case is attached to an internal combustion engine or a vehicle body frame, and the other case is detachably connected to the one case, while the filter element is The gasket part made of soft elastic material around In a square of the case to fit mounting. "Was the configuration that.

[0008]

As described above, one of the clean side case and the dust side case is attached to the internal combustion engine or the body frame and the other case is detachably attached to the one case. On the other hand, the gasket portion made of a soft elastic body around the filter element is fitted and mounted on the other case, so that the filter element does not remain on one case side attached to an internal combustion engine or the like. The filter element can be removed together with the other case while being attached to the other case, in other words, the filter element can be removed together with the other case from one case attached to an internal combustion engine or the like. Therefore, the workability of removing the filter element can be greatly improved.

In particular, the thickness of the filter element inserted into the other case is made smaller than the dimension inserted into the one case of the filter element, so that the thickness of the other case is reduced. When removing the filter element from one of the cases attached to the internal combustion engine or the like, the filter element is inserted in one of the thickness dimensions of the filter element in the lateral direction of the other case by a small amount. Therefore, the space secured for laterally moving the other case can be narrowed beside the other case, and the air cleaner is disposed in a narrow place. Can have the advantages.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to FIGS.

In FIG. 1, reference numeral 1 denotes an internal combustion engine. In the internal combustion engine 1, a crank axis 1a is substantially perpendicular to a traveling direction of a vehicle in a front engine room 3 of a vehicle body frame 2. The intake manifold 4 is mounted on the side of the internal combustion engine 1 on the rear side with respect to the traveling direction.
Exhaust manifolds 5 are respectively attached to the front side surfaces, and the exhaust manifolds 5 are provided with exhaust turbochargers 6.
Is connected.

Reference numeral 7 denotes an air cleaner disposed in a space between the internal combustion engine 1 and the vehicle body frame 2 in a plan view. The air cleaner 7 is configured to be separated in the left-right direction. And a dust side case 9 are detachably connected to each other with a filter element 10 interposed therebetween. The dust side case 9 is connected to an air duct pipe 11 having an atmospheric air intake port 11a at the end. On the other hand, the clean side case 8 is connected to the blower compressor 6a of the exhaust turbocharger 6 via the intake pipe 12 on the suction side, and the intake pipe 13 from the discharge side of the blower compressor 6a is connected to the clean side case 8. An air-cooled intercooler 14 is provided on the way, and is connected to the intake manifold 4.

Then, one of the dust side cases 9 of the two cases in the air cleaner 7 is detachably attached to the body frame 2 or the internal combustion engine 1 by fastening with a plurality of bolts 15 having grommets 16. Then, the other clean side case 8 is detachably connected to the dust side case 9.

In this detachable connection, for example, an engaging piece 17 provided on the lower surface side is removably engaged with an engaging portion 18 provided on the clean side case 8, while both engagement pieces 17 are provided on the upper surface side. The case 8 and the case 9 are fastened to each other with a clip 19 which can be freely engaged, so that the air cleaner 7 can be operated from the upper surface side.

Further, a fitting flange 20 having an L-shaped cross section is integrally provided around the opening of the clean side case 8, and is formed in the flange 20 around the filter element 10. The gasket portion 21 made of a soft elastic body is
And the other side surface 21c of the gasket portion 21 is fitted while the outer peripheral surface 21a and one side surface 21b of the
In addition, a configuration is adopted in which a flange portion 22 provided integrally with the dust side case 9 abuts.

Further, of the thickness dimension T of the filter element 10, the dimension T2 inserted into the dust side case 9 is reduced and the dimension T1 inserted into the clean side case 8 is increased.

Further, the whole or a part of the intake pipe 12 from the clean side case 8 is formed as a bellows pipe made of a soft elastic material such as rubber, so that the clean side case 8 With the tube 12 connected,
The dust side case 9 is configured to be able to move far and near.

In this configuration, by removing the clip 19 on the upper surface of the air cleaner 7, the clean side case 8 is opened from the dust side case 9 attached to the body frame 2 as shown in FIG. Can be removed.

In this case, the filter element 10 sandwiched between the two cases 8 and 9 has the gasket portion 21 on the outer periphery thereof fitted and fitted into the fitting flange portion 20 provided integrally with the clean side case 8. By doing so, it is possible to remove it together with the clean side case 8 while it is mounted on the clean side case 8 without remaining on the die side case 9 side.

When the clean side case 8 of the air cleaner 7 is detached from the die side case 9, the clean side case 8 has a thickness corresponding to a dimension inserted into the dust side case among thicknesses of the filter element 10 therebetween. In this case, the dimension T2 of the thickness T of the filter element 10 to be inserted into the dust side case 9 is larger than the dimension T1 of the filter element 10 inserted into the clean side case 8. When the clean side case 8 is detached from the dust side case 9, the size T2 of the thickness T of the filter element 10 to be inserted into the dust side case 9 is smaller by reducing the size. The side of the clean side case 8 It is possible to reduce the dynamic range.

In the above-described embodiment, the dust side case 9 is attached to an internal combustion engine or the like, the clean side case 8 is detachably connected to the dust side case 9, and a filter is attached to the clean side case 8. The case where the gasket portion 21 of the element 10 is fitted is shown. However, the present invention is not limited to this. Conversely, the clean side case 8 is attached to an internal combustion engine or the like, and The dust side case 9 may be detachably connected, and the gasket portion 21 of the filter element 10 may be fitted into the dust side case 9.

[Brief description of the drawings]

FIG. 1 is a plan view showing a state where an internal combustion engine is mounted on a vehicle.

FIG. 2 is an enlarged sectional view taken along line II-II of FIG.

FIG. 3 is a diagram showing a state in which both cases of the air cleaner are separated.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Internal combustion engine 7 Air cleaner 8 Clean side case 9 Dust side case 10 Filter element 19 Clip 20 Fitting flange 21 Gasket part of filter element 22 Flange part

Claims (2)

[Claims] 1. An air cleaner comprising: a clean side case and a dust side case configured to be separated in the left-right direction and a filter element interposed therebetween.
An atmospheric air intake device comprising an air duct pipe having an intake port for atmospheric air at a tip thereof connected to a dust side case of the air cleaner, and an intake pipe to an internal combustion engine connected to a clean side case of the air cleaner. One of the clean side case and the dust side case is attached to an internal combustion engine or a vehicle body frame, and the other case is detachably connected to the one case. An atmospheric air intake device for an internal combustion engine for a vehicle, wherein a gasket portion made of an elastic body is fitted and mounted in the other case. 2. The internal combustion engine for a vehicle according to claim 1, wherein a dimension inserted into the other case among thicknesses of the filter element is smaller than a dimension inserted into the one case. Atmospheric air intake device in Japan.