JPH088249Y2 - Intercooler cooling device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention relates to a cooling device for an intercooler mounted on a turbocharged engine.

(Prior Art and its Problems) Conventionally, some vehicles equipped with an engine with a turbocharger are equipped with an intercooler for cooling the air supercharged by the turbocharger and increasing the supercharging rate. For example, in an air-cooling type intercooler 51 as shown in FIG. 2, an inflow pipe 52 into which supercharged air flows is connected to an outflow pipe 53 from which cooled air passing through the intercooler 51 flows out to the engine side. Is
An electric fan 56 is installed together with a fan cover 55 via a stay 54 on the front side of the core part 51a on the front side of the intercooler 51, and the fan 56 is rotated by energizing the fan 56 via a cord 57. As a result, the core portion 51a of the intercooler is cooled.

In such a conventional structure, since the electric fan 56 is attached to the front side of the core portion 51a, the core portion 51a is covered by the unit of the fan 56, and when the fan 56 is stopped or the fan 56 fails, etc. On the contrary, there is a problem that the air passage to the core part 51a is deteriorated and the cooling efficiency is deteriorated.

(Means for Solving the Problem) The present invention has been devised in view of the above-mentioned conventional problems, and an object thereof is not to provide a cooling device for an intercooler capable of increasing cooling efficiency, and the gist thereof is as follows. The drain hose of the air conditioner of the vehicle can be connected to a filler cap that is detachably attached to the upper surface to allow introduction of dehumidified water from the air conditioner, and the filler cap can be removed to appropriately supply water, and an overflow pipe can be installed. A front side of an intercooler core that includes a water tank connected to the water tank, a jet motor connected to a pump motor installed on the side of the water tank and a hose, and the jet nozzle forms the front side of the intercooler. And an appropriate distance from the intercooler to the engine side of the outflow pipe on the rear side of the intercooler. An intake air temperature sensor for detecting the temperature of air flowing out to the pump motor is provided on the basis of the detected value of the intake air temperature sensor, the throttle opening from the throttle opening sensor, and the exhaust temperature input signal from the exhaust temperature sensor. A control device for ON / OFF control is provided, and the control device is provided when the water level in the water storage tank falls below a certain level based on a water level detection signal of a water level switch provided in the water storage tank. That is, the pump motor is configured to be turned off.

(Operation) Normally, since there is no shield on the front side of the intercooler core, the air cooling efficiency of the intercooler can be improved. Further, when the intake air temperature is high, the cooling water can be jetted directly from the injection nozzle to the front surface of the intercooler to satisfactorily enhance the cooling efficiency of the intercooler and lower the intake air temperature. In addition, since the pump is turned off when the water level in the water storage tank falls below a certain level, seizure failure of the pump can be prevented.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a schematic arrangement diagram of an intercooler cooling device. In the figure, an inflow pipe 2 and an outflow pipe 3 are connected to a rear surface side of the intercooler 1, and the inflow pipe 2 is connected to a turbocharger (not shown). The supercharged air from the turbocharger is introduced into the intercooler 1 through the inflow pipe 2, the air is cooled in the intercooler 1 and is supplied to the engine side through the outflow pipe 3.

In this example, an injection nozzle 5 is arranged at an appropriate distance in front of the intercooler core 1a forming the front side of the intercooler 1. The injection nozzle 5 is provided with a hose 6 and a water tank. 7 is connected.

A pump motor 8 is installed between the water tank 7 and the hose 6, and when the pump motor 8 is energized via a cord 9, the water in the water tank 7 is jetted through the hose 6. Water is sent to the nozzle 5, and water is jetted from the jet nozzle 5 to the intercooler core 1a.

A filler cap 7a is detachably attached to the upper surface of the water storage tank 7.
Water can be supplied to the water storage tank 7 by removing 7a. Further, an air conditioner drain hose 10 is connected to the upper surface side of the filler cap 7a, and this air conditioner drain hose 10 can introduce dehumidified water from the air conditioner device of the vehicle into the water storage tank 7. An overflow pipe 7b is connected to the water storage tank 7 so that overflow water can be discharged to the outside when the water storage tank 7 is full of water. Further, a water level switch 11 is arranged at an upper portion of the side wall surface of the water storage tank 7, and this water level switch 11 can detect the water level in the water storage tank 7 and When the water level is below a certain level, the pump motor 8 is connected to a control unit (not shown) via a cord 11a so as to turn off the pump motor 8.

An intake air temperature sensor 4 is provided on the outflow pipe 3 of the intercooler 1 so that the temperature of the air passing through the outflow pipe 3 can be detected. The intake air temperature sensor 4 is also connected to a control device (not shown) via a cord, and a throttle opening sensor, an exhaust gas temperature sensor, etc. are also connected to the control device so that the throttle opening and exhaust temperature (exhaust gas of the vehicle Detected temperature) of the intercooler 1 is calculated based on the input signals of the throttle opening, intake air temperature, exhaust temperature, etc. in the control device. ON / OFF control of the pump motor 8 is performed via 9.

As described above, in this example, since water is jetted directly from the injection nozzle 5 to the intercooler core 1a to cool the air passing through the intercooler 1, the injection nozzle 5 is appropriately disposed on the front side away from the intercooler 1. The intercooler core 1a can be disposed at a position, and normally there is no shield on the front side of the intercooler core 1a, so that the air cooling efficiency of the intercooler 1 can be improved. Further, when the vehicle is traveling at high speed, or when the intake air temperature or the exhaust gas temperature is high, etc., the pump motor 8 is operated via the control device to eject the cooling water from the injection nozzle 5 to the intercooler core 1a, and to improve the temperature. The intercooler core 1a can be cooled, the intake air temperature can be easily lowered, and the engine output can be improved.

Further, in this example, since the dehumidified water in the vehicle compartment is supplied into the water storage tank 7 via the drain hose of the air conditioner, the dehumidified water can be effectively used.

(Effects of the Invention) The intercooler cooling device of the present invention can be connected to a filler cap that is detachably attached to the upper surface side of the drain hose of the air conditioner of the vehicle to introduce dehumidified water from the air conditioner, and the filler cap. A water storage tank which can be appropriately supplied with water by removing the water tank and which is connected to an overflow pipe, and a pump motor installed on the side of the water storage tank and an injection nozzle connected via a hose, and the injection nozzle is an intercooler. Of the intake air temperature sensor for detecting the temperature of the air flowing out from the intercooler to the engine side while being disposed at an appropriate distance in front of the intercooler core forming the front side of the intercooler. Is provided, and the detected value of the intake air temperature sensor and the throttle opening and exhaust from the throttle opening sensor are A control device for controlling ON / OFF of the pump motor based on the input signal of the exhaust temperature from the air temperature sensor is provided, and the control device responds to the water level detection signal of the water level switch provided in the water storage tank. Based on this, the pump motor is configured to be turned off when the water in the water storage tank falls below a certain water level, so that water is jetted directly from the injection nozzle to the intercooler core to cool the air passing through the intercooler. Therefore, the injection nozzle can be installed at an appropriate position on the front side away from the intercooler, and normally there is no shield on the front side of the intercooler core, so the air cooling efficiency of the intercooler should be improved. You can Also, when the vehicle is running at high speed or when the intake air temperature or the exhaust air temperature is high, the pump motor is operated via the control device to eject cooling water from the injection nozzle to the intercooler core, and cool the intercooler core satisfactorily. In addition, the intake air temperature can be easily lowered, and the engine output can be improved.

Further, since the dehumidified water in the vehicle compartment is supplied into the water storage tank via the drain hose of the air conditioner, the dehumidified water can be effectively used.

In addition, since the pump is turned off when the water level in the water storage tank falls below a certain level, seizure failure of the pump can be prevented.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of an intercooler cooling device of this example, and FIG. 2 is a configuration diagram of a conventional intercooler cooling device. 1 ... Intercooler, 1a ... Intercooler core 2 ... Inflow pipe, 3 ... Outflow pipe 4 ... Intake temperature sensor, 5 ... Injection nozzle 7 ... Water tank, 7a ... Filler cap 8 ... Pump motor 10 …… Air conditioner drain hose 11 …… Water level switch

Claims (1)

[Scope of utility model registration request] 1. A drain hose of an air conditioner for a vehicle is connected to a filler cap removably attached to the upper surface side so that dehumidified water from the air conditioner can be introduced, and the filler cap can be removed to appropriately supply water. And an injection nozzle connected via a hose with a pump motor installed on the side of the water storage tank, and an injection nozzle connected to the front side of the intercooler. An intake air temperature sensor for detecting the temperature of the air flowing out from the intercooler to the engine side is provided on the outflow pipe on the rear surface side of the intercooler while being arranged at an appropriate distance in front of the cooler core. Input signals of the detected value of the sensor and the throttle opening from the throttle opening sensor and the exhaust temperature from the exhaust temperature sensor A control device for controlling ON / OFF of the pump motor based on the above is provided, and the control device keeps the water in the water tank constant based on a water level detection signal of a water level switch provided in the water tank. An intercooler cooling device, characterized in that the pump motor is turned off when the water level falls below a water level.