JPS6339379Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an inertial supercharging device for an internal combustion engine that improves intake efficiency.

In order to increase the intake efficiency of a multi-cylinder internal combustion engine and increase the output of the engine, it is possible to increase the length of the intake pipe.
A method of providing an air vessel in the middle of an intake pipe to avoid interference with intake air is conventionally known. The combined inertial supercharging method that is currently commonly used is a combination of the above two methods, and is capable of achieving high intake efficiency.

However, the inertial supercharging method requires a relatively large space because the intake pipe is long, and an air vessel that maintains the static pressure of the intake air must be installed in the middle of the intake pipe, making it difficult to use in areas such as the engine room. The disadvantage is that the layout is very difficult in a confined space.

Therefore, the purpose of this invention is to eliminate the above-mentioned drawbacks of the conventional technology, to allow easy layout in a limited space, to improve output through inertial supercharging, and to reduce intake noise by shielding the sound radiated from the intake pipe. It is an object of the present invention to provide an excellent inertial supercharging device for an internal combustion engine that can reduce the amount of energy required.

The inertial supercharging device for an internal combustion engine of the present invention achieves the above object, and the outside of the intake manifold of the internal combustion engine is
The present invention is characterized in that an air vessel is formed by covering a space with a cover member, and the air vessel and the intake manifold are connected via an intake inertia pipe.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing an embodiment of an inertial supercharging device 10 for an internal combustion engine according to the present invention, which is attached to an in-line six-cylinder internal combustion engine 1. As shown in FIG.

In the present invention, the outside of the front three-cylinder intake manifold 11 and the rear three-cylinder intake manifold 12 of the in-line six-cylinder internal combustion engine 1 are respectively covered with cover members 20 and 21 made of damping steel, and independent air vessels 13, 14 were established. This Air Beth Cell 1
3 and 14 provide a gap between the intake manifolds 11 and 12 and the cover members 20 and 21 to ensure an intake volume that enters the air vessels 13 and 14. At this time, if there is not enough space on the sides of the intake manifold, a large gap can be provided in the vertical direction, and if there is not enough space in the vertical direction, a large gap can be provided on the sides. The cover members 20, 21 may be attached to the internal combustion engine 1 using bolts or nuts, and a sealing material may be used to prevent intake air from leaking to the outside.

An intake inlet hole 1 is provided in the upper part of the cover members 20 and 21.
3a and 14a are provided, and an intake pipe 15 is connected to these by branching into two, and the other end of this intake pipe 15 is connected to a supercharger or an air cleaner (not shown). Then, intake outlet holes 13b and 14b are provided in positions far from the intake inlet holes 13a and 14a of each cover member 20 and 21, respectively, and intake inertia pipes 16 and 17 are connected to these from the outside. Further, the other ends of these intake inertia pipes 16 and 17 are connected to the intake manifolds 12 and 12 in the cover members 21 and 20 adjacent to each other.
11 through the walls of the cover members 21 and 20 to be connected.

That is, the reason why the front air vessel 13 and the rear intake manifold 12 are connected, and the rear air vessel 14 and the front intake manifold 11 are connected is to ensure the length of the intake inertia pipes 16 and 17. However, if the length of the intake inertia pipe is not so long, as shown in the modified embodiment shown in FIG.
1, and the intake outlet hole 14b of the rear cover member 21 may be connected to the rear intake manifold 12.

Inertial supercharging device 1 of the present invention configured as described above
Next, the flow of intake air at 0 will be explained using FIG. 1, but first, the order of intake cylinders of an in-line six-cylinder internal combustion engine will be explained.

Generally, in an in-line six-cylinder internal combustion engine, the first cylinder is #1.
As expressed as #1-#5-#3-#6-#2
-#4 or #1-#4-#2-#6-#3-
Ignition is performed in the order of cylinder #5. Therefore, as mentioned above, if the front three cylinders and the rear three cylinders are made independent, this means that intake air will not be supplied to the same intake manifold twice in a row, and if intake air is supplied to the front intake manifold 11, , the next intake air will necessarily be supplied to the intake manifold 12 at the rear.

That is, first, from the air cleaner to the intake pipe 15
If the intake air sent to enters the air vessel 13 from the intake inlet hole 13a, this intake air moves inside the air vessel 13, passes through the intake inertia pipe 16 from the intake outlet hole 13b, and is supplied to the rear intake manifold 12. It goes into any cylinder from #4 to #6. When the intake air of this cylinder is finished, the intake air next enters the air vessel 14 from the intake inlet hole 14a, passes through the intake inertia pipe 17 from the intake outlet hole 14b as before, and then enters the front intake manifold 11. is supplied to any one of cylinders #1 to #3. Such a flow of intake air is the same in the apparatus shown in FIG.

As explained above, in the inertial supercharging device for an internal combustion engine according to the present invention, an air vessel is formed by covering the outside of the intake manifold of the internal combustion engine with a cover member such as a damping steel material with a space in between. By connecting the intake manifold and the intake pipe, it is possible to install a large volume air vessel and a long intake inertia pipe even in a limited narrow space such as an engine room, thereby creating an inertia filter with good intake efficiency. This has the effect of increasing the output of the engine by increasing the amount of electricity.

Furthermore, in the present invention, since the intake manifold is covered with a vibration-damping steel plate, it is possible to shield the radiated sound generated from the intake manifold during intake, which has the effect of reducing intake noise.

The inertial supercharging device of the present invention can be applied to both in-line multi-cylinder internal combustion engines in which the intake manifold is not separated into front and rear sections, and V-type multi-cylinder internal combustion engines in which the intake manifolds are separated into left and right sections. can.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the inertia supercharging device for an internal combustion engine of the present invention installed in an in-line six-cylinder internal combustion engine, and Fig. 2 is a perspective view showing a modified embodiment of the embodiment shown in Fig. 1. It is a diagram. 1... Internal combustion engine, 10... Inertial supercharging device, 1
1, 12... Intake manifold, 13, 14... Air vessel, 15... Intake pipe, 16, 17, 1
8, 19...Intake inertia pipe, 20, 21...Cover member.

Claims (1)

[Scope of utility model registration request] Covering the outside of an intake manifold of an internal combustion engine with a cover member with a space in between to form an air vessel,
An inertial supercharging device for an internal combustion engine, characterized in that the air vessel and the intake manifold are connected through an intake inertia pipe.