JPH0823297B2 - Cooling wind introduction structure for intercooler tower vehicle - Google Patents

Description

TECHNICAL FIELD The present invention relates to a cooling air introduction structure for a vehicle equipped with an intercooler.

2. Description of the Related Art For example, as shown in FIG. 6, in a vehicle equipped with an intercooler, a condenser 1 of an air conditioner is installed in the center of the front of the vehicle.
There is a radiator 2 disposed behind the front tire 4 and an intercooler 3 disposed in front of the front tire 4 (for example, May 1988 Nissan Motor Co., Ltd. Issued Service Circular No. 599, page B-2). reference).

However, in the above-mentioned conventional arrangement structure, the arrangement space of the intercooler 3 is limited, so that there is a problem that the intercooler 3 can be increased in size.

On the other hand, as shown in FIG. 7, it is conceivable to arrange the intercooler 3 in the front part of the condenser 1 in order to improve the performance of the intercooler 3. However, in this case, the intercooler 3 is installed in the upper rear part of the intercooler 3. There is a problem that stagnation of the wind occurs and that the introduced air easily escapes downward in the lower rear part of the intercooler 3, and thus the cooling performance of the condenser 1 and the radiator 2 deteriorates.

Therefore, the present invention provides a cooling air introduction structure for an intercooler-equipped vehicle that can smoothly introduce cooling air to the heat exchange device even if the intercooler is arranged at the front portion of the heat exchange device such as a condenser. Is.

Means for Solving the Problems An intercooler is arranged in front of a heat exchange device arranged in the central part of the front surface of the vehicle, and an air guide plate extending from the upper part of the intercooler to the front surface of the heat exchange device is arranged,
A duct member for guiding outside air to the engine via or bypassing the intercooler is provided behind the lower part of the intercooler and with the heat exchange device, and cooling air is provided by the upper wall of the duct member and the baffle plate. A blower duct for guiding the air from the intercooler to the heat exchange device is configured.

The intercooler can be placed in the center of the front of the vehicle, which is advantageous in terms of cooling performance, and the cooling air that has passed through the intercooler exchanges heat without stagnation by the wind guide plate at the upper rear of the intercooler and the duct member at the lower rear. Allows to be guided to the device.

Embodiments Embodiments of the present invention will be described below with reference to the drawings.

1 to 3, a condenser 5 of an air conditioner and a radiator 6 are arranged behind the front grill F in the center of the front of the vehicle.

The capacitor 5 is mounted on the cross member M.

An intercooler 7 is arranged in front of the condenser 6.

The intercooler 7 is interposed in an outside air introduction duct 9 that guides outside air to the engine 8, and cools the air that is adiabatically compressed and heated by the compressor 11 of the turbocharger 10. In addition, 12 is an air cleaner, 13 is an intake collector, 14 is a turbine of the turbocharger 10, and 15 is a throttle.

Here, behind the upper part of the intercooler 7, an upper wall 16a extends downwardly to the front surface of the condenser 5 (near the central portion in the vertical direction of the condenser 5) and side walls 16b.
The baffle plate 16 having is attached.

By the way, a recirculation duct 17 (duct member) that connects the upstream side of the compressor 11 of the turbocharger 10 and the downstream side of the intercooler 7 is attached to the outside air introduction duct 9.
A recirculation valve 18 is provided on the downstream side of the.

The recirculation duct 17 opens the recirculation valve 18 when the turbocharger 10 is rotating at a low speed or when the throttle 15 is rapidly closed, and guides the outside air to the engine 8 without passing through the intercooler 7 to improve the intake and sound vibration characteristics. It is what makes me.

Further, the recirculation duct 17 closes the lower part of the intercooler 7 between the recirculation duct and the cross member M, and its upper wall 17a abuts on the lower end of the side wall 16b of the baffle plate 16 so that Cooling air is guided to the condenser 5 as a ventilation duct S which is surrounded by the recirculation duct 17 and has a narrowed rear portion. A sealing material is provided at the front and rear edges of the recirculation duct 17 corresponding to the intercooler 7 and the cross member M.
19 are provided.

According to the structure of the above embodiment, the outside air that has passed through the intercooler 7 is formed without being disturbed by the blower duct S composed of the baffle plate 16 and the recirculation duct 17, and the rear side of the blower duct S is narrowed down. Therefore, the flow velocity is increased and the flow is guided to the condenser 5, so that a large amount of outside air is sent to the condenser 5 without leaking.

At this time, the airflow introduced directly into the condenser 5 by the air guide plate 16 does not interfere with the airflow exiting the intercooler 7 and does not cause turbulence.

Therefore, even if the intercooler 7 is arranged in the front portion of the condenser 5, the cooling performance of the condenser 5 and the radiator 6 is not deteriorated, so that the relatively large intercooler 7 can be arranged.

Further, since the recirculation duct 17 functions as a baffle plate, the space for arrangement can be saved and the weight of the vehicle body can be reduced as compared with the case where a separate baffle plate is provided.

Then, the recirculation duct 17 and the baffle plate 16
As a kind of shock absorbing member, it can withstand an input load acting from the front side, so that damage to the capacitor 5 and the like during a light collision can be reduced. In this case, if the recirculation duct 17 and the baffle plate 16 are made of soft resin, higher impact absorption characteristics can be obtained.

On the other hand, since the recirculation duct 17 is arranged between the intercooler 7 and the condenser 5, it is possible to reduce the hood as compared with the case where the recirculation duct 17 is arranged above the engine 8 and the influence of the radiant heat of the engine 8 It is advantageous in that it is hard to receive.

Further, since the recirculation duct 17 is arranged on the front side of the condenser 5, it is advantageous in that a sufficient length can be secured, and therefore the intake noise can be reduced.

 Next, a second embodiment will be described with reference to FIGS.

In FIG. 4 and FIG. 5, a condenser 5 as a heat exchange device and a radiator 6 are disposed behind the condenser 5 as a heat exchange device, and an intercooler 7 is disposed in front of the condenser 5 and an upper rear portion of the intercooler 7. Upper wall 16
Similar to the previous embodiment, a is inclined downward and extends to the front surface of the condenser 5, and the baffle plate 16 having the side wall 16b is attached.

Here, on the exit side of the intercooler 7,
The outside air introducing duct 9 serving as a duct member is folded back and disposed behind the lower part of the intercooler 7 and between the condenser 5.

The lower edge of the side wall 16b of the air guide plate 16 is in contact with the upper wall 9a of the outside air introducing duct 9, and the air duct S is narrowed rearward by the air guide plate 16 and the upper wall 9a of the outside air introducing duct 9. Are formed.

Therefore, also in this embodiment, since the intercooler 7 can be arranged in the central portion of the front surface of the vehicle, the size can be increased and outside air can be smoothly guided to the rear of the intercooler 7, so that the cooling performance of the condenser 5 and the radiator 6 can be improved. Can be improved.

The structure other than the point that neither the recirculation duct nor the recirculation valve is provided is the same as that of the above-mentioned embodiment, so the same parts are designated by the same reference numerals and the description thereof is omitted.

EFFECTS OF THE INVENTION As described above, according to the present invention, the cooling air that has passed through the intercooler can be smoothly guided to the heat exchange device without stagnation by the wind guide plate at the upper rear of the intercooler and the duct member at the lower rear. Due to
There is an effect that the cooling performance of the heat exchange device can be improved.

Further, since the lower wall of the blower duct is configured by utilizing the upper wall of the duct member, the parts are made common, which not only helps to reduce the weight of the vehicle body but also effectively utilizes the space.

Further, since the duct member is arranged adjacent to the lower side of the air duct, the hood height can be reduced as compared with the case where the duct member is arranged above the engine.
The duct member is less likely to receive heat from the engine, and the rise in intake air temperature can be suppressed.

[Brief description of drawings]

1 to 5 show an embodiment of the present invention, FIG. 1 is a side view, FIG. 2 is a perspective view, FIG. 3 is a plan view, and FIG. 4 is a perspective view of a second embodiment. FIG. 5 and FIG. 5 are explanatory views of the same plane, and FIGS. 6 and 7 are a perspective explanatory view and a side explanatory view of a conventional technique, respectively. 5 ... condenser (heat exchange device), 6 ... radiator (heat exchange device), 7 ... intercooler, 16 ... air guide plate, 17 ... recirculation duct (duct member), 17a ... upper wall.

Claims (1)

[Claims] 1. An intercooler is arranged in front of a heat exchange device arranged in a central portion of a front surface of a vehicle, a baffle plate extending from an upper portion of the intercooler to a front face of the heat exchange device is arranged, and a lower rear portion of the intercooler is arranged. A duct member for guiding outside air to the engine via or bypassing the intercooler is provided between the heat exchanger and the heat exchanger to heat the cooling air from the intercooler by the upper wall of the duct member and the air guide plate. A cooling air introduction structure for a vehicle equipped with an intercooler, characterized in that a ventilation duct for guiding to the exchange device is configured.