KR19980025353A - A carburetor for vehicles that directly supply air to the intake side when idling - Google Patents

Abstract

The present invention relates to a carburettor for directly supplying air to the intake side during idling to easily supply the auxiliary air to the intake side without going through the idle port, and more particularly to detect the rotation amount of the throttle shaft. The throttle position sensor and the actuator are installed at the same axis, and the solenoid is used to open and close the air inlet hole of the throttle plate to supply air directly to the intake side. The present invention relates to a car carburetor, the present invention integrates the function of the throttle position sensor and the function of the idle flow control actuator to integrate with the throttle body to effectively use the space of the limited engine room, and to intake the auxiliary air volume during idling Can be supplied directly to the side to reduce air flow resistance Has a feature that improves the control performance due to reduced delay time and idle flow rate improves control performance using a Soleil hameuroseo Lloyd to the drive control of the drive and the number of parts configuring productivity down due to simplification of the manufacturing process, increase manufacturing costs and the reduction operation neungyul.

Description

A carburetor for vehicles that directly supply air to the intake side when idling

The present invention relates to a carburettor for directly supplying air to the intake side during idling so that the auxiliary air is easily supplied directly to the intake side without going through the idle port, and more particularly, the amount of rotation of the throttle shaft The throttle position sensor and the actuator are installed at the same axis, and the solenoid is used to open and close the air inlet hole of the throttle plate to supply air directly to the intake side. It relates to a carburetor for supplying.

In general, the combustion of gasoline requires an appropriate mixing ratio of air and gasoline, and controlling the mixing ratio is a vaporizer. On the other hand, if there is too much air or too much gasoline is injected into the carburetor, it cannot be completely burned, and in order to burn gasoline, the theoretical weight requires a mixing ratio of about 15 air to gasoline 1, and the range of combustible mixing ratio Usually between 8-20. The principle of the throttle body is the application of the principle of spraying, which is divided into a part where fuel and air are mixed and a part which always stores a certain amount of fuel.

The part that mixes fuel and air consists of choke valve, venturi, main nozzle and throttle valve. When the engine rotates, the flow rate of air drawn from above is increased in the venturi part, and the air pressure in this part goes down, so the fuel is attached to the main nozzle. I'm going. At this time, the fuel is swept into the air and atomized and mixed with the air to flow downward, and the throttle valve, that is, the throttle body, controls the passage amount of the mixer.

As shown in FIG. 1, the conventional vaporizer 100 having the above function has an elastic force so that one side of the shaft 300 penetrating the throttle body 200 can be returned to its original position when the shaft 300 is rotated. It has a spring 400 is installed, such as a wire bracket 500 is connected to the wire for transmitting the operation of the accelerator pedal is installed.

On the other hand, the shaft 300 penetrating the inside of the mixer inlet 210 formed in the throttle body 200 is fixed to the throttle plate 600 to adjust the amount of the mixer and the other end of the shaft 300 The throttle position sensor 700 which detects the rotation angle, that is, the opening amount of the throttle plate 600, and transmits the detected signal to the ECU is installed.

On the other hand, the mixer inflow path 210 formed in the throttle body 200 is connected to the Vives passage 220 penetrated outward from the predetermined portion inside the engine so that the engine can be driven without idling the accelerator pedal during idling, for example An idle port 800 is provided to adjust the amount of fuel supplied thereto.

The conventional carburetor made as described above is complicated in structure by using an additional device in accordance with the installation of the idle pod communicating with the Vives container, and the control performance is reduced due to the delay time of reaching the intake side to the intake side of the curved idle pod. There was a problem.

Another problem is that the idling flow regulator and the throttle position sensor are dualized, which makes the structure complicated and reduces the efficiency of the limited engine room space, and it is impossible to apply various throttle bodies, and the production process is complicated due to the large number of components. There was a problem.

The present invention has been made in view of the above-mentioned problems, and its object is to integrate the function of the throttle position sensor and the idle flow control actuator to integrate with the throttle body so that the space of the limited engine room can be efficiently used. In case of idling, auxiliary air can be directly supplied to the intake side, improving control performance by reducing air flow resistance and shortening delay time, and using solenoid as driving drive of idling flow controller. Its purpose is to provide a carburetor that reduces productivity, improves productivity and reduces manufacturing costs.

The purpose of the above is the main shaft in the carburetor for the vehicle, comprising a guide member formed in the flow path of the body fixed to the engine is provided with a flat groove, the groove is inserted into the shaft rod, the guide groove formed in the upper portion A throttle body provided with a throttle plate having one or more air conditioning grooves formed therein; a throttle position sensor that detects a rotation angle on one side of the main shaft and sends a signal to the ECU; and a main side on one side of the throttle position sensor An actuator formed by connecting an air conditioner plate to a shaft rod penetrating one end of the shaft and penetrating to the inner side of the flow path, and a spring is installed between the fixed core and the floating core. Auxiliary air, characterized in that made including the winding drive drive The carburettor is achieved by a vehicle for supplying directly to the intake side.

1 is an exemplary view showing the structure of a conventional car vaporizer.

Figure 2 is a plan sectional view showing a structure of a carburetor for supplying air directly to the intake side when the inventors idle

Figure 3 is a perspective view of the main portion of the carburetor for supplying air directly to the intake side when the inventors idle

4 is an enlarged cross-sectional view taken along the line A-A of FIG.

Figure 5a is an exemplary view showing that the carburetor of the present invention directly supply the air to the intake side when idling, (5a) is an exemplary view when driving, and (5b) shows that the air is directly supplied to the intake side during idling It is an illustration.

Explanation of symbols for the main parts of the drawings

10: Throttle Body 30: Throttle plate opening and closing means

40: actuator 50: drive drive

60: throttle position sensor 70: main shaft

80: throttle plate 72: guide member

73: groove 81: air conditioner

Hereinafter, the configuration and operation of the present invention will be described in detail with reference to the accompanying drawings. 2 and 3 are cross-sectional views and main parts exploded perspective view showing the structure of the carburetor for directly supplying the auxiliary air amount to the intake side of the present invention, according to the present invention is a throttle body 10 is installed in a predetermined portion of the engine and Throat plate opening and closing means 30 for transmitting the amount of force of the accelerator to rotate the main shaft 20, an actuator 40 installed inside the throttle body 10, and the throat plate opening and closing means The other side of the 30 is roughly composed of a drive driver 50 for driving the actuator 40 and a throttle position sensor 60 provided between the throttle body 10 and the drive drive 50.

Specifically, the central portion of the throttle body 10 fixed to the engine is provided with a flow passage 11 through which the mixer passes, but the flange portion 12 is formed on both sides of the flow passage 11 and the throttle on the other side. The fixed end portion 13 to which the lot plate opening and closing means 30 is installed is formed, and the flange portion 12 and the fixed end portion 13 are formed through the shaft hole 14 horizontally. A main shaft 70 is formed in the shaft hole 14, and a throttle plate 80 is fixed to the main shaft 70 inside the flow path 11.

At this time, the structure of the main shaft 70 is a fixed portion having a plane so that the central portion located in the interior of the flow path 11 is cut to predetermined as shown in Figure 3 attached to the fixed ( A guide 72 is formed at an upper part of the fixing part, and the guide 72 has a fixing plate at both ends and is bent to protrude upward to form a space, and the guide groove 72a is formed at the fixing plate. ).

One end of the fixing plate is formed with a spiral so that the conventional throat plate opening and closing means 30 is fixed in a screw, and a recess 73 is formed at a portion of the fixing plate 12 penetrating the flanger 12. On the other hand, the fixed amount is installed on the main shaft 70 when the driver brightens the accelerator is transmitted to the wire bracket to rotate the main shaft 70 and according to the amount of rotation of the main shaft 70 flow path 11 The throttle plate 80 to open and close the one or more air conditioning groove 81 is formed.

The plunger 12 is provided with a throttle position sensor 60 which detects the rotation angle of the main shaft 70 and sends the signal to the ECU, and between them, the throttle position sensor 60 is prevented from being transferred to the temperature. The insulating member 90 to protect is installed.

One end of the main shaft 70 is arranged at one side of the throttle position sensor 60, and an shaft bar 41 is inserted into the recess 73 of the shaft and penetrated to the inside of the flow path 11. On the other hand, the other end of the shaft bar 41 penetrating the throttle position sensor 60 is fitted to the flow core 51 of the drive drive 50.

The structure of the drive drive 50 is the outer periphery of the fixed core 52, the coil 54 is wound and the floating core 51 is installed to face the fixed core 52, each of the core (51, 52) A spring 53 is installed between the shaft 53 and a shaft rod 41 penetrates the flow core 51.

The drive drive 50 may be a motor, a solenoid, or other devices, but in the present invention, it is preferable to use a solenoid. The actuator 40 installed inside the throttle body 10 may be a throttle. The center of the air control plate 42 formed larger than the air control groove 81 formed in the plate 80 is fixed by the stop ring 43 through which the axial rod penetrates.

Reference numeral 91 is a stopper for preventing the flow of the core and 92 is a fastening means.

The carburetor 1 for directly supplying the auxiliary air volume of the present invention having the above structure to the intake side is the driver when the engine is first driven, idling the engine or stopping for a short time due to running signals or other conditions. In other words, when idling, the engine continues to be driven even when the driver does not step on the accelerator. When the driver steps on the accelerator pedal, the carburetor typically rotates by pulling the throat plate opening and closing means 30 connected to the wire. The main shaft 70 is then rotated together.

At this time, the throttle plate 80 rotates at the same time as the shaft 30 rotates to open the flow path 11 of the throttle body 10 so that a mixture of fuel and air is supplied to the engine. As described above, the engine supply amount of the mixer is determined according to the stepping amount of the accelerator pedal while driving, and the rotation is sent to the ECU by the throttle position sensor 60 to affect each device.

However, when the vehicle is stopped, the engine should be stopped because the throttle plate 80 is completely closed, but at this time, the actuator 40 is operated by the drive drive 50 to control the air formed in the throttle plate 80. This is solved by opening the ball 81. On the other hand, the shaft bar 41 is inserted into the groove 73 when the main shaft 70 is rotated, the predetermined portion is bent and does not flow because the shaft center coincides.

As shown in FIGS. 5A and 5B, the action of the actuator 40 is that the intensity of the current supplied to the drive drive 50 is changed by adjusting the intensity of the current in the ECU. When hardened, the magnetic field of the coil 54 wound on the outer circumferential surfaces of the cores 51 and 52 is hardened to pull the cores.

At this time, the floating core 51 is pulled toward the fixed core 52, and the moving distance of the floating core 51 is determined by the strength of the current. At the same time, the shaft bar 41 is also pulled out and the shaft bar 41 is pulled out by the groove 73 while pulling the air control plate 42 to open the air control hole (81). At this time, the end of the shaft bar 41 is prevented by the guide groove 72a formed in the guide member 72 so as not to shake, and the lifting and twisting of the air control plate 81 is prevented by the guide member 72.

As such, the amount of air flowing into the intake side flows directly into the air regulating hole 81 formed in the throttle plate 80 to improve the performance of the engine. On the other hand, when the current supplied to the drive drive 50 is cut off, the magnetic field of the coil 54 does not exist, the flow core 51 is returned to its original state by the elastic force of the spring 53, so the air conditioning hole 81 The air control plate 42 is blocked.

The carburettor for directly supplying air to the intake side during idling of the present invention is installed so that the throttle position sensor and the actuator for detecting the rotational amount of the throttle shaft are located at the same shaft center, and the air inlet of the throttle plate using the solenoid By opening and closing the ball, the function of the throttle position sensor and the function of the idling flow control actuator are integrated to integrate with the throttle body so that the limited space of the engine room can be used efficiently, and the auxiliary air can be supplied directly to the intake side during idling. Improved control performance due to reduced air flow resistance and shorter delay time, and solenoid as drive drive of idle flow controller, improved control performance and fewer components, resulting in simplification of manufacturing process, improved productivity and reduced production cost. Filial piety providing vaporizer A.

Claims (4)

In a carburetor for vehicles, The flow path 11 for supplying the mixer includes a guide member 72 forming a fixing portion 71 and having a groove 73 into which the shaft rod 41 is inserted, and having a guide groove 72a formed thereon. A throttle body (10) provided with a throttle plate (80) formed with at least one air adjusting hole (81) formed on the main shaft (70); A throttle position sensor 60 which detects a rotation angle and transmits a signal to the ECU on one side of the main shaft 70; One side of the throttle position sensor 60, the one end of the main shaft 70 is formed, the actuator 40 is formed by connecting the air conditioning plate 42 to the shaft rod 41 penetrating to the inner side of the flow path (11) )Wow, A spring 53 is installed between the fixed core 52 and the floating core 51, and the driving core 40 has a shaft bar 41 penetrated therethrough and a coil 54 is wound outside the core. A carburetor for supplying air directly to the intake side during idling, characterized in that it comprises a). 2. The carburetor for a vehicle according to claim 1, wherein the throttle position sensor (60) and the drive drive (50) are integrally formed. The method of claim 1, wherein a predetermined portion of the shaft rod 41 inserted into the recess 73 of the main shaft 70 and penetrating to the inner side of the flow passage 11 is bent to directly supply air to the intake air during idling. Car carburetor. According to claim 1, wherein the main shaft 70 for adjusting the opening amount of the throttle plate 80 and the shaft 41 of the actuator 40 of the actuator 40 which sends auxiliary air to the intake side during idling is located in a straight line. A carburetor for a vehicle that directly supplies air to the intake side during idling.