KR19990028763U - Flow prevention device of automobile canister - Google Patents

Abstract

The present invention relates to a flow preventing device of a canister for automobiles, and its purpose is to provide a flow preventing device that is fixed firmly less flow after the fastening bracket to the canister.

The present device prevents flow It consists of two guides (2,2 ') having a cross section, but one side (3) of the guide (2,2') is open and the opposite side is configured to be blocked by a stopper (4), The stopper 4 is bonded to the front of the stopper 4 so that the hole 6 drilled in the center portion of the bracket fixing the canister to the thickness of the rubber 5 and the semicircular stopper 7 formed in the canister are prevented from being engaged with each other. Afterwards, the rubber 6 is pushed by an artificial force so that the hole 6 drilled in the center portion of the bracket is fastened to the semicircular stopper 7 formed in the canister.

Description

Flow prevention device of automobile canister

The present invention relates to a flow preventing device of an automobile canister, and more particularly, to a device that is tightly coupled by using a rubber that provides one side is blocked and provides a cushioning force and a fixing force.

In general, the fuel supply system serves to maintain a function and regulation pressure sufficient to inject the required fuel under all operating conditions of the engine.

The fuel in the fuel tank injected from the fuel filling port is supplied to the fuel supply pipe through the fuel filter at a pressure of about 2.5 kg / cm 3 by an electrically driven fuel pump. The fuel pump refers to a device that sucks fuel from a fuel tank and transports the fuel to a carburetor or a fuel injector. The fuel pump includes a type outside the fuel tank and a device installed in the tank. It is divided into mechanical and electrical. The fuel tank stores fuel and includes a tank body, a main pipe, a fuel gauge sender unit, and the like. Inside the fuel tank, several separators (isolating plates) are welded to prevent the fluctuation of the fuel while driving and to increase the strength. In addition, the fuel emission pipe (Fuel emission pipe) is a connection between the tank and the charcoal canister is a passage for absorbing the steam generated in the tank to the charcoal canister. In addition, the fuel cap is equipped with a negative pressure valve to prevent negative pressure from being generated in the fuel tank so that fuel is not supplied to the carburetor or the fuel injection device.

In addition, conventionally, gasoline vapors generated from fuel systems such as fuel tanks were released into the atmosphere. However, since the gas contaminates the atmosphere with hydrocarbons, a device for inducing combustion into a combustion chamber without releasing it into the atmosphere is called a fuel evaporation gas emission suppression apparatus. By installing this device, it will not be accompanied by the increase of harmful components in the exhaust gas, and the device is small in principle, simple in principle, long in life, high in reliability, and will not adversely affect the performance of the car and minimal design changes. It is necessary to satisfy the conditions that can be installed in all cars. In addition to the fuel tank, the gasoline evaporative gas is emitted from the carburetor, but since the vent of the carburetor passes through the inside of the air cleaner and the air is emitted in a small amount, the fuel tank is mainly focused on the crank case storage system. And charcoal canisters are used.

The crankcase storage method stores the evaporated gas in the tank in the crankcase and delivers it to the combustion chamber by using a blow-by gas reducing device (PCV device). The evaporated gas generated in the tank accumulates in the tank until the specified pressure is reached. When the pressure exceeds the specified value, the check valve opens and moves to the Perge control valve. The Purge control valve opens the valve on the crankcase side when the steam pressure exceeds the specified value. It is guided to the crankcase, mixed with the blowby gas, and entered into the combustion chamber by a blowby gas reducing device to be combusted. Since the P.C.V valve closes when the engine stops, steam gas accumulates in the crankcase. In addition, when negative pressure is generated in the tank during operation, the check valve of the tank cap and the air cleaner side valve of the purge control valve open to inhale the atmosphere to prevent the pressure from dropping.

In addition, the char canister system absorbs and stores the boil-off gas on the activated carbon and sends it to the vaporizer together with the outside air, so that the check valve is opened when the vapor pressure in the tank rises, and the boil-off gas flows into the char canister. Since the purge control valve is closed during engine shutdown, the evaporated gas stops in the canister without flowing to the engine. Gasoline is adsorbed on the activated carbon and only air is released into the atmosphere. When the engine is running, the purge control valve is opened by the inlet negative pressure of the engine, and the atmosphere is sucked into the carburetor along with the adsorbed gasoline as it passes through the canister. Since activated carbon is cleaned at this time, it can be used repeatedly. If a negative pressure builds up in the tank, air is drawn from the canister through a check valve. If the canister is blocked, the check valve on the tank cap is opened. In addition, the vehicle equipped with the fuel injection device is configured to suck the evaporated gas generated in the tank into the charl canister, and to send the combustion gas from the throttle body to the combustion chamber for combustion.

The apparatus for fixing the charcoal canister described above is a side view showing a side view showing a flow preventing device mounted on a conventional charcoal canister, and a front view showing a flow preventing device mounted on a conventional charcoal canister. 3 shows a bracket for fixing the charcoal canister, and FIG. 4 shows a front sectional view of the conventional flow preventing device. The conventional flow preventing device has a groove attached to the canister and is formed around the center. It consists of a flow preventing device and a bracket for fixing it.

The bracket is formed with wings bent once on both sides of the plate with holes in the center portion, the wings on one side is small so that the width is well fitted to the inlet of the canister flow prevention device.

The other side is larger than the inlet of the canister flow arrestor to act as a stopper.

Such a device is easy to fasten if the inlet height gap (1.5mm) of the canister's flow prevention device is greater than the thickness of the bracket (1.5mm) when fastening the canister's flow preventing device and the bracket. If the size is small, the tightening may not be possible due to tolerances.

In addition, the flow preventing device of the canister is made of a plastic material, and both sides are open, so that it is difficult to accurately fix the fastening groove or the bracket may be out of the fastening position.

That is, there is a disadvantage that the flow is severe after fastening.

An object of the present invention for solving the above problems is to provide a flow preventing device that is fixed firmly less flow after the fastening the bracket to the canister.

The purpose of the present invention as described above is installed in the side portion of the canister in the flow preventing device for fixing the canister, the flow preventing device is' 'It consists of two guides having a cross section, but one side of the guide is open and the other side is configured to be blocked by a stopper, in front of the stopper is bonded to the buffer of the rubber buffer to secure the canister to the thickness of the rubber bracket After the hole in the canister and the semicircular stopper formed in the canister are shifted from each other to prevent the fastening, the artificially applied force pushes the rubber so that the hole drilled in the center of the bracket is fastened to the semicircular stopper formed in the canister. This is achieved by achieving an anti-flow device of an automotive canister.

1 is a side view showing a flow preventing device mounted on a conventional charcoal canister

Figure 2 is a front view showing a flow preventing device mounted on a conventional charcoal canister

3 is a bracket fixing a charcoal canister

Figure 4 is a front sectional view of a conventional flow preventing device

5 is a flow preventing device according to the present invention

<Explanation of symbols for main parts of the drawings>

(1): Flow prevention device

(2,2 '): guide stand

(3): one side

(4): stopper

(5): rubber

(6): hall

(7): stopper

If described in detail in connection with the accompanying drawings the configuration and the operation of the embodiment of the present invention to achieve the object as described above and to perform the task for removing the conventional drawbacks.

Figure 5 shows a flow preventing device 1 according to the present invention, the configuration is installed in the side portion of the canister in the flow preventing device for fixing the canister, the flow preventing device 1 is' It consists of two guides (2.2 ') having a ruler cross section, one side (3) of the guide stand is open and the other side is configured to be blocked by a stopper (4), in front of the stopper buffer rubber 5 To prevent the hole 6 and the semi-circular stopper 7 formed in the canister from shifting against each other by fastening the rubber 5 by applying an artificial force. The hole 6 drilled in the center portion is fastened to the semicircular stopper 7 formed in the canister so as to be firmly fixed.

The operation of the present invention as described above is as follows.

In order to fix the canister to the bracket, if you push the 'Y' guide guide at the entrance of the flow prevention device to the side of the bracket with the small width of the bracket, it will not move forward by the rubber. The canister is fitted with a semicircular stopper to prevent flow.

The device of the present invention as described above is 'One side of the two guides having a cross section is open and the other side is configured to be blocked by a stopper, and the hole and canister drilled in the center of the bracket to secure the canister to the thickness of the rubber by adhering the buffer rubber in front of the stopper. After preventing the semicircular stopper formed in the shifter to prevent the fastening, there is an effect that the hole drilled in the center of the bracket is fastened to the semicircular stopper formed in the canister only by pushing the rubber with artificial force to secure it.

Claims (1)

In the flow preventing device (1) installed on the side of the car canister for fixing the canister, The flow preventing device is' It consists of two guides (2,2 ') having a cross section, but one side (3) of the guide (2,2') is open and the opposite side is configured to be blocked by a stopper (4), The stopper 4 is bonded to the front of the stopper 4 so that the hole 6 drilled in the center portion of the bracket fixing the canister to the thickness of the rubber 5 and the semicircular stopper 7 formed in the canister are prevented from being engaged with each other. Then, the canister for automobiles, characterized in that the hole (6) drilled in the center of the bracket is fastened to the semicircular stopper (7) formed in the canister only by pushing the rubber by applying artificial force.