KR200142205Y1 - Air intake manifold of air intake device for engine - Google Patents

Abstract

By adding an additional flow rate to the mixer or air flowing in the intake manifold, the intake efficiency can be increased, and the vortex can be generated inside the combustion chamber to distribute the mixer evenly, thereby improving engine output and fuel. An air purifier that filters the air in a clean state to provide an intake manifold of the engine intake apparatus so that the combustion of the engine can be expected to complete combustion, and a throttle body equipped with a throttle valve for the inflow of the air flowing through the air cleaner. The surge tank is made larger than the cross-sectional area of the throttle body, and in particular, a surge tank for vortexing the air sucked at a low temperature to raise the on, and coupled to the surge tank so that the intake air or the mixer is distributed and supplied to the combustion chamber of each cylinder. An intake apparatus for an engine composed of an intake manifold, wherein Part manifold is a side cross-sectional shape formed in a circle and; A second portion in which the cross-sectional shape of the intermediate portion extending from the first portion is elliptical or a rectangle formed at both ends thereof rounded; The cross-sectional shape of the other side extended from this 2nd part is comprised from the 3rd part formed of a round shape.

Description

Intake manifold of engine intake

1 is a schematic cross-sectional view showing an intake manifold of a general engine intake apparatus.

2 is a temporary cross-sectional view of FIG. 1 showing a cross section of one side of an intake manifold for an engine according to the present invention.

3 is a helical cross-sectional view of FIG. 1 showing a cross section of one side of an intake manifold for an engine according to the present invention.

4 is a cross-sectional view taken along line 1 of FIG. 1 showing one side cross-section of an intake manifold for an engine according to the present invention.

5 is a cross-sectional view showing one side cross section of an intake manifold of a conventional intake apparatus.

* Explanation of symbols for main parts of the drawings

1: air purifier 3: throttle body

5: surge tank 6: cylinder

7 intake manifold 12 combustion chamber

20: Part 1 30: Part 2

40: Part 3

[Industrial use]

The present invention relates to an intake manifold of an intake apparatus for an engine, and more particularly, to an intake manifold of an intake apparatus for an engine to increase the intake efficiency by giving a flow rate added to a mixer or air circulated therein. It is about.

[Private Technology]

In general, the engine is provided with a combustion chamber formed by a cylinder head, a cylinder block coupled to the cylinder block, and a piston coupled to the bore of the cylinder block to enable linear reciprocating motion. By giving off the explosive force due to combustion, the mixer providing power for the piston to perform a linear reciprocating motion can be sucked in.

As shown in FIG. 1, the intake and exhaust device includes an air cleaner 1 for filtering air in a clean state, and an air flow meter 2 for detecting an inflow amount of air flowing through the air cleaner 1. And a throttle valve (not shown) for controlling the intake air amount, a bypass path for bypassing a small amount of air during the full closing operation of the throttle valve, and a throttle position sensor 3 for detecting the opening amount of the draw valve. And a surge tank 5 and each cylinder 6 combustion chamber, which are made larger than the throttle body 4 to be mounted and the cross-sectional area of the throttle body 4 to increase the temperature by vortexing the air sucked at a low temperature. Intake manifold (7) or the like for distributing intake air.

As described above, the intake manifold 7 is coupled to the cylinder head 8 in communication with the combustion chamber so that the intake manifold 7 is distributed inside the intake manifold 7 through an intake port 9 formed to be opened and closed by a valve opening and closing mechanism. The mixer is sucked into the combustion chamber, and as shown in FIG. 5, a circular circular shape made of cast iron, an aluminum alloy, or a steel pipe having a thickness of 3 to 4 mm is combined with the surge tank 5 described above. .

However, the conventional intake manifold as described above has the same cross-sectional shape over the entire length, so that it is impossible to add a predetermined flow rate to the mixer or air circulated therein, so that the suction efficiency cannot be increased. There is this.

Summary of the proposal

The present invention is devised to solve the above-mentioned disadvantages, the object of the present invention is to add an additional flow rate to the mixer or air flowing in the intake manifold to increase the intake efficiency, The present invention provides an intake manifold of an intake apparatus for an engine that allows vortices to be generated inside a combustion chamber so that the mixer is evenly distributed, thereby improving the output of the engine and expecting complete combustion of the fuel.

In order to realize this, the present invention comprises an air purifier that filters air in a clean state, a throttle body equipped with a throttle valve, and an inflow amount of air flowing through the air purifier, and a larger cross-sectional area of the throttle body. An intake manifold for an engine comprising a surge tank for vortexing intake air to raise the temperature, and an intake manifold coupled to the surge tank so that the mixer is supplied to the combustion chamber of each cylinder. The first portion has a circular cross-sectional shape of one side; A second portion in which the cross-sectional shape of the intermediate portion extending from the first portion is elliptical or a rectangle in which both ends are rounded; The intake manifold of the engine intake apparatus is provided so that the cross-sectional shape of the other side extended from this 2nd part may consist of a 3rd part formed in the shape of a round shape.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings, and the same reference numerals will be given to the same parts as in the prior art.

EXAMPLE

1 is a schematic cross-sectional view showing an intake apparatus of a general engine to which an intake manifold 7 according to the present invention is applied, and a description thereof will be omitted as described above.

The intake manifold 7 as described above has a combustion chamber 12 formed by a cylinder head 8, a cylinder block 6 coupled thereto and a piston 10 coupled to a bore of the cylinder block 6. To be prepared.

On the other hand, in the combustion chamber 12 as described above is mixed with the fuel or the fuel injected by the injector 14, the combustion explosive force is to suck the air formed by the mixer, such a mixer or air is the cylinder head The intake manifold 7 which is connected in communication with the intake port 9 of (8) is provided.

As shown in FIG. 2, the intake manifold 7 is made of cast iron, an aluminum alloy, or a steel pipe having a thickness of 3 to 4 mm, and a cross-sectional shape of one side portion coupled to the surge tank 5 as described above. The first portion 20 formed in this circular shape, and the cross-sectional shape of the intermediate portion extending from the first portion 20, as shown in FIG. Two parts 30; As shown in FIG. 4, the cross-sectional shape of the other side extending from the second portion 30 is formed of the third portion 40 formed in the shape of a circle.

[Effect of design]

In this way, the intake manifold according to the present invention having the change of the cross section so that the middle part has a flat shape so that a predetermined flow rate is added to the mixer or air when the mixer or air distributed through the surge tank is distributed. As a result, the suction efficiency can be increased, and thus, the output of the engine can be improved, and there is an advantage in that the ona combustion of the fuel can flow.

Claims (1)

The air cleaner 1 for filtering the air in a clean state, the throttle body 3 to which the throttle valve is mounted, and the inflow amount of the air flowing through the air corrector 1, and the cross-sectional area of the throttle body 3 to be larger. In particular, the surge tank (5) for vortexing the air sucked at a low temperature to increase the temperature, and coupled to the surge tank (5), the suction air or mixer to the combustion chamber 12 of each cylinder (6) An intake apparatus for an engine composed of an intake manifold (7) for dispensing and supplying, the intake manifold (7) comprising: a first beam (20) having a circular cross-section on one side; A second portion 30 whose cross-sectional shape of the intermediate portion extending from the first portion 20 is elliptical or a rectangle formed with rounded edges thereof; The intake manifold of the engine intake apparatus, characterized in that the cross-sectional shape of the other side extending from the second portion (30) is made of a third portion (40) formed in a round shape.