KR19980055438A - Throttle valve device of internal combustion engine - Google Patents

Abstract

The present invention relates to a throttle valve of an automobile engine installed in the throttle body and interlocked with an accelerator pedal to regulate an amount of intake air mixed with fuel supplied to the engine, the hinge being fixed to the throttle body 1. (4) is connected to the valve body (5), which is installed to be foldably rotatable, a restoring spring (6) supported on the inner side of the valve body folded, and both sides of the valve body folded and linked to the accelerator pedal It consists of a cable (7). According to this configuration, the throttle valve is opened to be folded in the direction of the air flow in conjunction with the accelerator pedal, thereby minimizing the resistance of the intake air, increase the responsiveness of the engine, and improve the filling efficiency. In addition, the engine output power and operation characteristics are improved.

Description

Throttle valve device of internal combustion engine

The accompanying drawings are plan views showing the throttle valve device of the internal combustion engine according to the present invention.

Explanation of symbols on the main parts of the drawings

1: Throttle Body 2: Surge Tank

3: Throttle Valve 4: Hinge

5: valve body 6: restoring spring

7: cable

Technical Field of the Invention

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a throttle valve of an internal combustion engine, and more particularly, to a throttle valve installed in an intake cylinder of a vehicle to increase or decrease the amount of air flowing into the engine in proportion to the driver's accelerator pedal operation. It is about.

[Private Technology]

Generally, a throttle valve is installed in an intake cylinder of an automobile engine to appropriately adjust the amount of intake air mixed with fuel supplied into a combustion chamber.

Such a throttle valve is disposed in the throttle body and installed to be interlocked by an accelerator pedal, and the less air flow resistance by the throttle valve is, the higher the output of the engine can be.

In the conventionally known throttle valve, a shaft interlocked by an accelerator pedal is provided inside the throttle body, which is an air passage, and a disk-shaped throttle valve is fixed to the shaft to rotate together.

The throttle valve is generally made of a disc of a butterfly (Butterfly) shape, and linked to the accelerator pedal and the link operated by the driver, by opening and closing the throttle body, that is, the passage of air, the flow of air flowing into the engine and To control the amount.

[Technical problem to be achieved]

The problem associated with the above-described conventional throttle valve is that air flow resistance is generated at the initial opening.

Typically the flow of air is linear. For this reason, the conventional butterfly type throttle valve hits the air almost perpendicularly at the initial stage of opening, generates vortices in the air that flows into the gap with the throttle body, and generates resistance to the flow of air.

This problem causes a destabilization of the engine's operating state and causes a decrease in power. In addition, the driving performance is reduced when the vehicle starts or accelerates.

In order to solve the problem with the prior art, to minimize the flow resistance of the air flowing into the engine of the vehicle of the present invention, to improve the output and driving performance of the engine.

[Configuration and Function of Invention]

As a means for realizing the above object, the present invention proposes a throttle valve device of an internal combustion engine having a configuration described later.

That is, the present invention relates to a throttle valve of an automobile engine installed in the throttle body and controlling the amount of intake air mixed with fuel supplied to the engine by opening and closing in conjunction with an accelerator pedal. It is characterized by consisting of a valve body which is installed to be pivotally foldable, a restoring spring carried on the inner side of the valve body, and a cable connected to both sides of the valve body and linked to the accelerator pedal.

According to this configuration, the throttle valve is opened to be folded in the flow direction of the air in conjunction with the accelerator pedal, to supply air to the engine with a minimum flow resistance.

EXAMPLE

EMBODIMENT OF THE INVENTION Hereinafter, preferred embodiment for implementing this invention is demonstrated in detail based on an accompanying drawing.

The accompanying drawings are plan views of the throttle valve device of the internal combustion engine according to the present embodiment as seen from the upper side of the engine room.

Reference numeral 1 in the drawings refers to the throttle body. This throttle body 1 is a passage of intake air which guides clean air supplied from an air cleaner (not shown) to the surge tank 2.

The surge tank 2 is a place where the air flowing through the throttle body 1 is temporarily stored, and communicates with each combustion chamber of the engine. The throttle body 1 is provided with a throttle valve 3 for adjusting the amount of air sucked by the negative pressure of the engine.

Here, the throttle valve 3 of the present embodiment, unlike the conventional one, proposes a folding valve that opens in the direction of the flow of air in order to minimize the flow resistance of the intake air.

More specifically, the throttle valve (3) is coupled to the hinge (4) fixed to the throttle body (1), the valve body 5 is installed to be folded in the flow direction of air based on the hinge (4) It is composed. On the inner side of the valve body 5 that is folded, the restoring spring 6 is supported, and is always forced in the unfolding direction.

In addition, a cable 7 linked to the accelerator pedal is connected to the inner side of the valve body 5 in the folded direction.

As can be seen from the figure, the valve body 5 is composed of a semicircle plate that is rotatably coupled to the hinge 4.

According to the configuration of the present embodiment described above, the throttle valve 3 is opened to be folded in the direction of the flow of air in conjunction with the accelerator pedal, thereby supplying air to the engine in a state of minimizing the flow resistance of the air.

That is, when the driver operates the accelerator pedal, the valve body 5 interlocked with the cable 7 is folded toward the air flow direction, and a space is formed between the throttle body 1 and toward the surge tank 2. Passed through the air.

On the contrary, when the force acting on the accelerator pedal is released, the valve body 5 is closed again by the restoring spring 6 to block the flow of air.

[Effects of the Invention]

Through the embodiments described above, it can be seen that the throttle valve device of the internal combustion engine according to the present invention substantially solves the problems of the prior art.

That is, the present invention minimizes the flow resistance of the air sucked into the engine, thereby increasing the filling efficiency of the intake air and improving the responsiveness and output of the engine.

On the other hand, the present invention is not limited to the above-described specific preferred embodiment, and any person having ordinary knowledge in the field to which the invention belongs without departing from the gist of the invention claimed in the claims, various changes Would be possible.

Claims (1)

Internal combustion including a throttle body which is a passage of intake air, a throttle valve which is linked to an accelerator pedal to control the amount of intake air, and a surge tank which temporarily stores air flowing through the opening and closing action of the throttle valve and is connected to each combustion chamber. In the intake of the engine, a valve body coupled to the hinge fixed to the throttle body, the valve body is installed to be folded in the flow direction of the air on the basis of the hinge, a restoring spring which is supported on the inner side of the folded valve body, A draw valve device of an internal combustion engine, characterized in that consisting of a cable connected to both sides of the valve body folded and linked to the accelerator pedal.