KR19990026538U - Car air intake cooling system - Google Patents

Abstract

The present invention relates to an intake cooling device for an automobile, comprising: an air cleaner (4) for filtering air sucked through a snorkel (3), and a throttle body (6) communicating with the air cleaner (4) by an intake hose (5) And an intake apparatus composed of a surge tank 7 and the like; A compressor 8, a condenser 9, an expansion valve 10, and an evaporator connected to the expansion valve 10 by a high pressure pipe 12 while connected to the compressor 8 by a low pressure hose 13. In the cooling device composed of 11), the cooling pipe (1) branched from the high-pressure pipe 12 and passed through the inner surface of the snorkel (3) of the air cleaner (4) to enter the low pressure hose (13) and And, the outer circumferential surface of the snorkel (3) consists of a cooling cover (2) to prevent the external heat is transferred into the snorkel (3), by cooling the air sucked into the air cleaner in the summer to the air cleaner This will lower the temperature of the air supplied to the engine to improve the output performance and fuel economy of the engine.

Description

Car air intake cooling system

The present invention relates to an intake cooling device of an automobile, and more particularly, by cooling the air sucked into the air cleaner in the summer to lower the temperature of the air supplied from the air cleaner to the engine, thereby reducing the output performance and fuel efficiency of the engine. It relates to an intake cooling system of a vehicle to be improved.

Normally, a vehicle powered by an internal combustion engine is made into a mixer by mixing the air drawn from the intake system and the fuel supplied from the fuel tank at an appropriate ratio in a carburetor, which is appropriately adjusted through a throttle valve. It is supplied to and combusted to generate power.

However, the air sucked from the atmosphere contains a lot of dust and a lot of foreign matter. When the foreign matter is sucked into the cylinder together with the mixer through the carburetor, it is caught between the piston and the cylinder wall reciprocating at high speed, and thus the abrasive In addition to damage to the cylinder wall as it acts as, as well as being mixed with the engine oil to promote the wear of each sliding part, including the bearing metal, resulting in a shortened engine life.

Therefore, in order to prevent such a phenomenon, as one of the intake apparatus, an air cleaner is mounted on the air horn portion of the carburetor to remove foreign substances contained in the sucked air and to remove the intake sound generated in the intake cylinder.

On the other hand, in the summer, the engine room is equipped with a cooling device for cooling the interior of a car. In general, the cooling system of a vehicle includes a compressor that sucks and compresses refrigerant gas to make a gas at a high temperature and high pressure, and is sent from the compressor. A condenser to liquefy the refrigerant by forced cooling, an expansion valve that expands the high-pressure liquid refrigerant into a low-temperature / low-pressure fog state, and extracts heat from the surrounding air to convert the refrigerant into a gaseous refrigerant. By being configured as an evaporator to be sent to the compressor it is to be cooled as the circulation of the refrigerant is repeated through this cycle.

Referring to the accompanying drawings, the intake device and the cooling device of the vehicle with reference to the accompanying drawings as follows.

1 is a schematic perspective view of a general cooling apparatus and an intake apparatus of a vehicle, and in the case of an intake apparatus, an air cleaner 4 for filtering intake air and a filter filtered by the air cleaner 4 are provided. A throttle body (6) having a throttle valve for adjusting the flow rate of air, and a surge tank (7) for distributing intake air to each cylinder through an intake manifold, The tip is provided with a snorkel 3, which is a tube through which air in the air is sucked, and the air cleaner 4 and the throttle body 6 are connected by an intake hose 5. On the other hand, the air conditioner includes a compressor (8) for making the refrigerant gas into a high-temperature, high-pressure gas state, a condenser (9) for liquefying the refrigerant passing through the compressor (8), and a high-pressure liquid refrigerant to expand the low-temperature and low-pressure The expansion valve 10 to make a mist state, and the evaporator 11 to release the cool air while making the refrigerant in the mist state of the gas state again, the expansion valve 10 and the evaporator 11 Is connected by a high pressure pipe 12, the evaporator 11 and the compressor (8) is connected by a low pressure hose (13).

Therefore, the flow of intake air in the intake apparatus is as follows. The intake air sucked through the snorkel 3 enters the air cleaner 4 and is filtered, and then is sent to the throttle body 6 through the intake hose 5. The amount of air is then adjusted to enter the surge tank 7 and mixed with the fuel.

In the cooling device, the refrigerant flows from the compressor (8) through the condenser (9), through the expansion valve (10), and then into the evaporator (11) through the high pressure pipe (12), and then to the low pressure hose (13). Cooling is achieved by going back into the compressor (8) and repeating the circulation.

On the other hand, in order to improve the output of the engine, the average effective pressure must be increased, and in order to increase the average effective pressure, the compression ratio or the intake amount must be increased. The density of the air is lowered, the volumetric efficiency is lowered, and the compression pressure is lowered, which causes incomplete combustion, resulting in a decrease in engine output performance and fuel economy.

Therefore, in summer, when the temperature of the air is high, the temperature of the intake air must be lowered to some extent to improve the volumetric efficiency, thereby improving the engine output and fuel economy.

However, conventionally, since there is no separate device for cooling the intake air supplied to the engine in the summer, it must inevitably suffer a decrease in engine power and fuel economy, and a need for a device for cooling the intake air has emerged.

The present invention was devised in response to the necessity as described above, and provides an intake cooling device of a vehicle which improves the output performance and fuel efficiency of the engine by lowering the temperature of the intake air supplied to the combustion chamber of the engine to an appropriate level in the summer. The purpose is to.

The technical configuration of the present invention for achieving the above object, the cooling is diverted from the high-pressure pipe leading to the evaporator from the expansion valve of the air conditioner and passed through the snorkel of the air cleaner to enter the low pressure hose from the evaporator to the compressor A pipe and a cooling cover are formed to surround the outer circumferential surface of the snorkel to prevent external heat from being transferred into the snorkel.

1 is a schematic perspective view of a general intake and cooling device of a vehicle,

2 is a configuration diagram illustrating the concept of an intake air cooling device according to the present invention;

3 is a perspective view of an intake air cooling apparatus according to the present invention.

Explanation of symbols on the main parts of the drawings

1: cooling pipe 2: cold cover

3: snorkel 4: air cleaner

5: intake hose 6: throttle body

7: surge tank 8: compressor

9 condenser 10 expansion valve

11: evaporator 12: high pressure pipe

13: low pressure hose

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

2 is a schematic view illustrating a concept of an intake air cooling device according to the present invention, and FIG. 3 is a perspective view of the air intake cooling device according to the present invention, and the same reference numerals are applied to the same apparatus and mechanism as that of FIG. The detailed description is omitted.

The present invention, as shown, the air cleaner (4) for filtering the air sucked through the snorkel (3), the throttle communicates with the intake hose (5) to the air cleaner (4) to adjust the flow rate of the intake air An intake apparatus composed of a throttle body 6 provided with a valve and a surge tank 7 for distributing intake air to each cylinder via an intake manifold; A compressor (8) for making the refrigerant gas into a high-temperature, high-pressure gas state, a condenser (9) for liquefying the refrigerant passing through the compressor (8), and an expansion to expand the high-pressure liquid refrigerant into a low-temperature / low-pressure fog state The high pressure pipe 12 is connected to the valve 10 and the expansion valve 10 to release the cool air while making the refrigerant in the fog state into the gaseous refrigerant again, and then the refrigerant through the low pressure hose 13 again. In a cooling apparatus comprising an evaporator (11) to be sent to the compressor (8), the snorkel of the air cleaner (4) branched out of the high pressure pipe (12) from the expansion valve (10) to the evaporator (11). (3) The outer surface of the cooling pipe 1 and the outer peripheral surface of the snorkel 3, which passes through the inner surface and enters the low pressure hose 13 from the evaporator 11 to the compressor 8, is wrapped. This leads to the cold cover 2 which prevents it from being transferred into the snorkel 3 Eojinda.

Operation of the intake cooling device of the vehicle according to the present invention made as described above is as follows.

In the summer, the air conditioner is operated to cool the vehicle. When the air conditioner is operated, the refrigerant passes from the compressor 8 through the condenser 9 to the expansion valve 10 and then the high pressure pipe 12. Cooling is achieved by entering the evaporator 11 through, and then repeatedly entering the compressor 8 through the low pressure hose 13 to repeat the circulation, whereby a portion of the low temperature low pressure refrigerant flowing in the high pressure pipe 12 is cooled. By branching into the pipe 1, the inside of the snorkel 3 is cooled, so that the temperature of the intake air sucked into the snorkel 3 drops so that the cooled intake air enters the air cleaner 4, and the snorkel ( After cooling 3), the refrigerant discharged through the outlet of the cooling pipe 1 enters the low pressure hose 13 to repeat the circulation by the cooling cycle.

In addition, since the outer circumferential surface of the snorkel 3 is surrounded by the cold cover 2, it prevents external heat from being transferred into the snorkel 3, thereby improving the cooling effect of the air sucked into the snorkel 3 more. do.

As described above, the intake cooling device of the vehicle according to the present invention is simply made, and by cooling the air sucked into the air cleaner in the summer without the need for a separate complicated cooling device, the air supplied to the engine from the air cleaner is Lowering the temperature has the effect of improving the output performance and fuel economy of the engine.

Claims (1)

An air cleaner (4) for filtering the air sucked through the snorkel (3), a throttle body (6) communicating with the intake hose (5) to the air cleaner (4), and a surge tank (7) Intake apparatus; A compressor 8, a condenser 9, an expansion valve 10, and an evaporator connected to the expansion valve 10 by a high pressure pipe 12 while connected to the compressor 8 by a low pressure hose 13. In the cooling device composed of 11), the cooling pipe (1) branched from the high-pressure pipe 12 and passed through the inner surface of the snorkel (3) of the air cleaner (4) to enter the low pressure hose (13) and And an insulator cooling cover (2) configured to surround an outer circumferential surface of the snorkel (3) to prevent external heat from being transferred into the snorkel (3).