JPH029941A - Air cleaner for automobile - Google Patents

Abstract

PURPOSE:To facilitate the equipment layout in an engine room and the maintenance management of a filter element by arranging filter elements constituted of a filter medium and a frame supporting it on the back side of the bonnet or the like of an automobile via a hooking means. CONSTITUTION:An air cleaner is constituted of a support frame 1 welded on the back side of a bonnet 100 or the like, multiple filter elements 2 inserted into the support frame 1, and multiple presser metals 3 hooked on the support frame 1 and pressing the filaments 2 to the bonnet 100. The support frame 1 is constituted of an outer frame section 11 surrounding the filter elements 2 and an inner frame section 12 arranged between two adjacent filter elements 2. The filter element 2 is formed with a filter medium 21 and a frame 22 stuck on the periphery of the filter medium. The presser metal 3 is made of a flat plate provided with a through hole 31 at the center section, a screw 32 penetrating the through hole 21 is screwed to the screw hole 13 of the support frame 1.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to an air cleaner mounted on a vehicle.

[Prior Art] A conventional air cleaner is fixed integrally with an engine inside an engine room and constitutes a part of its intake system. For example, in the case of a gasoline engine with a combustion engine, the outlet of the air cleaner is connected to the inlet of the carburetor, and the outlet of the carburetor is connected to the inlet of the intake manifold.

Also, JP-A-56-224.61, JP-A-57-
No. 107840 and Japanese Unexamined Patent Publication No. 58-182874 propose providing an air duct or a muffler in the bonnet, which is installed upstream of the air cleaner in the flow path of air passing through the engine.

[Problem to be Solved by the Invention 1] Due to the recent trend toward slant-nosed vehicle bodies and the increase in engine-equipped parts, auxiliary machinery, superchargers, etc., there is very little space available in engine rooms.

It is very complicated to design and arrange the tassels in this narrow space so that they do not interfere with each other, and
The shape and performance of each device are subject to various constraints due to insufficient space. This is for the air cleaner
5 is no exception, and depending on the balance with the adjacent 1 black, air may be taken in through a duct that has a complicated shape or has many bends.

If the shape becomes more complex, the manufacturing process becomes more complicated and the cost becomes higher.Also, the complexity of the shape and the lack of space combine to make it difficult to replace the filter element, etc.
There is also the possibility that maintenance work will become difficult. Further, an increase in the extension or bending of the duct may lead to an unnecessary increase in ventilation resistance.

The present invention has been made in view of these problems, and it is an object of the present invention to provide an air cleaner for an automobile that can facilitate engine design, that is, the arrangement of equipment in the engine room, and is easy to maintain.

[Means for Solving the Problems] The automobile air cleaner of the present invention has a filter element consisting of a filter medium and a frame that supports the filter medium, which is attached to the bonnet covering the engine room of the automobile or the back side of the luggage compartment door of the automobile. It is characterized in that it is arranged via a stop means.

This air cleaner can be comprised of a filter element that is used as an air source, and a locking means that is installed in the bonnet and locks the filter element. In this case, part or all of the locking means can be configured integrally with the bonnet. The filter element is provided along the periphery of the filter medium and can be composed of a frame that provides rigidity to the filter element and a filter medium for filtering intake air. As the material of the filter medium, aM, various fiber mats, nonwoven fabrics, etc. can be used. As for the shape of the filter medium, various shapes such as a flat panel shape and a folded shape can be adopted.

[Function 1] In the air cleaner of the present invention, the space in the engine room close to the bonnet or the space in the trunk close to the luggage compartment door, which has not been used effectively in the past, is utilized as a space for arranging the air cleaner. are doing. Therefore, the space conventionally occupied by the air cleaner in the engine room can be used for other equipment. Also, when the bonnet or luggage converter 1 to door is heard, the filter element swings upward and moves to a position suitable for inspection and replacement.

[Example] Example 1 An example of the air cleaner of the present invention is shown in FIGS. 1 to 4. In addition, FIG. 1 is a schematic diagram of the hood seen from the back side, FIG. 2 is a schematic diagram of a car equipped with the air cleaner of this embodiment, and FIG. 3 is a schematic diagram of the AA-line arrow in FIG. #
2, and FIG. 4 shows an enlarged plan view of the portion shown in FIG. 3.

As shown in FIG. 3, this air cleaner consists of a support frame 1 welded to the back side of a bonnet 100, four filter elements 2 fitted into the support frame 1 (see FIG. 1), and a support frame 1. It consists of a plurality of presser metal fittings 3 that are latched to hold the filter element 2 to the bonnet 10o. Note that a pair of hinges 101 are provided on one side of the bonnet 100.
are fixed, and these hinges 101 hold the bonnet 100 swingably to the vehicle body.

The support frame 1 consists of an outer frame part 11 surrounding the filter element 2 and an inner frame part 12 arranged between two adjacent filter elements. These outer frame portion 11 and inner frame portion 12 are made of steel, and have a channel-shaped cross section with a flange, as shown in FIG. Screw holes 13 (
(see Figure 3) are drilled. One end of a bellows-shaped hose 300 constituting a part of the intake system of the engine is connected to a predetermined location of the outer frame 11, and the other end of the hose 30o (
(not shown) is connected to a carburetor (not shown) via an intake pipe (not shown). In addition, a through hole 14 is formed at a predetermined location of the inner frame portion 12 .

Each of the filter elements 2 (see FIG. 3) consists of a filter medium 21 formed of a panel made of nonwoven fabric, and a frame 22 made of resin and bonded to the peripheral edge of the filter medium 21 and having a substantially 1-shaped cross section. A communication hole 23 is formed in the frame 22 at a position that can communicate with the viewing hole 14 of the inner frame portion 12.

The four clean side spaces 200 surrounded by the above-mentioned bonnet 100, support frame 1, and filter elements 2 are in communication with each other through communication holes 23 and sight holes 14, and intake air is connected through hoses 300. tube(
(not shown).

The presser metal fitting 3 is composed of a flat plate having a through hole 31 in its center, and is fastened to the support frame 1 by a screw 32 that passes through the through hole 31 and is screwed into the screw hole 13.

Here, the filter element 2 is fitted into the support frame 1, and then, by tightening the screw 32, the presser metal fitting 3 holds the filter element 2 against the bonnet 100.

This air cleaner takes in combustion air from the engine room and filters it through each filter medium 21 of the filter element 2. The combustion air filtered by the filter element 2 is then passed through the hose 3 through the communication hole 23 and the air/oil 7L14.
00.

As explained above, the automobile air cleaner of this embodiment is arranged on the back side of the bonnet 100 that covers the engine room, and the bonnet 100 constitutes the case of the air cleaner, and the air cleaner cap, input vibrator, etc. Because parts of can be omitted,
Even though the air cleaner has a large filtration area, it is possible to reduce the weight. Further, since the dust collected on the filter medium 21 is peeled off from the filter medium 21 and falls due to the vibration of the bonnet 100, there is an advantage that the filter medium 21 is not easily soiled.

In the above-mentioned embodiments, a heat shield plate made of, for example, glass U&cloth may be disposed below the filter medium 21 in order to shield the hot air from the engine room. in this case,
The combustion air may be configured to pass between the filter medium 21 and the shield plate and flow in from the front grill. Also,
The filter medium 21 is not only provided parallel to the bonnet 100 as in the present embodiment, but may also be provided in a direction in which the filter medium stands upright from the bonnet 100.

In the above embodiment, it is also possible to further improve airtightness by adhering gas keratin (-) to a predetermined position of each frame 22 of the filter element 2.

Example 2 Other embodiments of the invention are shown in FIGS. 5 to 7.

However, components common to those in the first embodiment will be described using common numbers.

As shown in FIG. 6, the air cleaner in this embodiment includes a plurality of support fittings 4 welded to the back side of a bonnet 100 and having a prismatic shape, a plurality of support fittings 4 and a bonnet 1.
Five filter elements 2A to E) arranged so as to be in contact with 00 (see Fig. 5) are locked by screws 32 screwed into the support fittings 4, and the filter elements 2A-
It consists of a presser metal fitting 3 that presses E to the bonnet 100.

Unlike the support frame 1 of Embodiment 1, the support fittings 4 are not arranged around the entire circumference of each filter element [2] to 2 (A-E), but are placed at a predetermined position at the fifth A plurality of screws are disposed at positions corresponding to the screws 32 shown in FIGS. A screw hole 41 is bored in the neck portion of the support fitting 4 .

Filter element 2 (A-E) is shown in Figures 6 and 7.
As shown in the figure, in addition to the filter medium 21 and the frame 22,
A gasket 28 is provided on the surface of the frame 22 facing the presser metal fitting 3 over its entire circumference. In addition, a communication hole 23 is formed in the frame 22 on the side where each filter element 2 (A-E) is adjacent to each other, and each communication hole 23 allows the flow of air that has passed between each filter element 2. There is.

In the first embodiment, the presser metal fitting 3 is in contact with the gasket 28 of the filter element 2 around the entire circumference of each frame 22 of each filter element 2 (A to F).

Further, the presser metal fitting 3 has a through hole 31 above the screw hole of the support metal fitting 4, and is fastened to the support metal fitting 4 by a screw 32 that passes through this D through hole 31.

According to the air cleaner of this embodiment, the support frame 1 disposed around the entire circumference of each frame 22 of each filter element 2 (8 to E) as in the air cleaner of embodiment 1 can be omitted, so that weight reduction can be achieved. be able to. Further, since the filter medium in this example is appropriately pleated, the rigidity of the filter medium itself is improved, and the filter medium has excellent durability against vibration and external damage.

[Effects of the Invention] As explained above, the air cleaner of the present invention can have the following effects.

(1) Since the air cleaner element can be exposed by opening the bonnet, inspection and replacement are easy.

(2) Since many flattened filter elements can be installed, the filtration area can be widened and the life of the element can be extended. tJ construction becomes easy.

(3) Extra space is created in the engine room, increasing the degree of freedom in design regarding the shape and placement of each device.

(4) Since the filter medium and the bonnet form a double wall structure, the sound radiated from the bonnet can be reduced.

(5) Since the number of component parts of the air cleaner is reduced, weight reduction can be achieved.

(6) Since there is no inlet vibe and the filtration area is large, ventilation resistance can be significantly reduced.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram showing the arrangement of the air cleaner of Embodiment 1, Fig. 2 is a schematic diagram of an automobile equipped with the air cleaner of Embodiment 1, and Fig. 3 is a schematic diagram showing the arrangement of the air cleaner of Embodiment 1. The sectional view and FIG. 4 are partially enlarged plan views of the air cleaner shown in FIG. 3. FIG. 5 is a schematic diagram showing the arrangement of the air cleaner according to the second embodiment, FIG. 6 is a partially enlarged perspective view thereof, and FIG. 7 is a partially perspective view of the filter element shown in FIG. 5. 2.2 (A to E)...Filter element 100...
・Bonnet patent applicant Toyota Boshoku Co., Ltd. agent Patent attorney Hiroki Okawa

Claims (1)

[Claims] (1) On the bonnet covering the engine compartment of a vehicle or on the back side of the vehicle's ratchet compartment door.
An air cleaner for an automobile, characterized in that a filter element consisting of a filter medium and a frame supporting the filter medium is disposed via a locking means.