JPH0579530B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a fresh air supply system for a motor vehicle, in particular for a motor vehicle heating or air conditioning system connected upstream of a blower housed in a housing to supply fresh air. It enters the gap between the windshield and the bonnet next to it, is turned under the bonnet, and with it water and foreign matter are removed and sent to a filter that can be pulled out and replaced, and then to the intake side. Regarding the supply of fresh air that enters the blower.

PRIOR ART A device for supplying fresh air with a high degree of separation is known from German Patent Publication No. 33 30 951.
Fresh air is desirable and heated, at least during the summer months, as the air intake tract is long and often directed through a wide expanse under the hood, which is heated by engine waste heat and/or the sun's radiant heat. be done.

Problem to be Solved by the Invention The aim of the invention is to prevent unintentional heating of fresh air in the suction tract while maintaining ease of filter replacement.

Means for solving the problem The purpose is to provide an air inlet in the gap between the windshield and the adjacent bonnet, and to provide an intake scoop that covers the support that houses the filter, with a part of the intake scoop being This is accomplished by an air supply device having a protruding portion toward the air inlet, a lattice member below which takes in air, and the incoming air entering from the lattice member whose direction can be changed when it hits the support.

This objective is further achieved by covering the filter with a movable, thermally insulated suction scoop relative to the bonnet.

Good insulation is achieved when the suction scoop is made of a thermally insulating material.

Furthermore, the upper side of the intake scoop can be insulated from the bonnet.

For easy access to the filter, it is expedient to configure the suction scoop so that it can rotate.

Further space and weight savings are achieved by constructing the intake scoop in the bonnet wall area.

Furthermore, in the case of a bonnet that rotates,
When the bonnet is opened, the supporting part that houses the filter is covered with a rotating cover that is articulated to the supporting part to prevent foreign matter and water from entering.

Effects In the air supply device of the present invention having the above configuration,
Fresh air entering from the inlet is diverted between the grate member and the grate plate, passes through the upper opposing grate member and enters the blower via the filter. Further, water entering from the inlet falls through the grid plate and is collected by the water separator, and some foreign matter is captured by the grid plate.

Two embodiments of the present invention will be described in detail below using figures.

DESCRIPTION OF THE PREFERRED EMBODIMENTS On the end wall 1 of a passenger car, not shown in detail, a housing 3 surrounding the blower 2 is also mounted, and other components of a heating or air-conditioning system 4, which are only indicated, are mounted on the passenger compartment side. There is.

Fresh air supply device 6 on the upper side of the housing 3
A support part 5, which is one of the constituent elements, is attached. In addition to the flap 7 configured as a main air flap, the support 5 has a filter 8 that can be removed upwards and also a water separator 9.

Windshield 11 and hood (bonnet)
Air inlet 10 formed in the gap between 12
The fresh air entering in the direction of the support 5 is deflected when it hits the support and flows through a grate 13 which is a component of a rotatable suction scoop 14 which covers the support 5 . A portion of the suction scoop 14 forms a protruding part facing the air inlet 10 , and the lattice member 13 is provided at the lower part of the protruding part, with one end near the upper end of the support part 5 facing the air inlet 10 . can be attached to. A foreign matter removal device is provided below the lattice member, and a lattice plate 15 whose one end is attached below the support portion 5 faces the lattice member.
and a water separator 9 provided below.
Moisture and foreign matter introduced with the air during this deflection process are separated. In this case, large foreign objects, such as leaves, for example, are held back by a grid plate 15 provided above the water separator 9, but the separated moisture passes through the grid plate 15 and enters the water separator 9. The reservoirs of the water separator 9 are approximately roof-shaped, and a drain pipe 16 is formed at the deepest part of each reservoir. The air thus prepurified is deflected by the intake scoop 14 and enters the filter 8;
There, fine foreign objects are removed and then finally enter the blower 2 on the suction side through a wide or narrow opening flap 7.

Up to this point, both embodiments are the same. According to FIG. 1, the suction scoop 14 is rotatably mounted on the support 5 and is attached to a lock 17, not shown in detail.
Since the grate member 13, which can be locked by the I can do it. During ventilation, the bonnet 12 and the inlet scoop 1 are used in order to prevent unnecessary heating of the air in the area of the inlet scoop 14 due to heat transfer from the nearby bonnet 12 in the area of the inlet scoop 14 in hot weather.
A heat insulating layer 19 is provided between the upper side 18 of 4 and the upper side 18 of 4. At the same time or instead of this layer 19 the suction scoop 1
4 can be a heat insulating material.

In the embodiment of FIG. 2, the suction scoop 14 comprises a wall region 20 integral with the bonnet 12;
The grid member 13 also constitutes a fixed component of the bonnet 12. The hood 12 has a molded insulator 22 on the underside of its skin 21. Therefore, when the bonnet 12 is rotated, the suction scoop 14 is also rotated together. In order to prevent dirt from reaching the filter 8 when the bonnet 12 is opened, it is raised to the open position by the control device 24 when the bonnet 12 is closed, but is raised by its own weight when the bonnet 12 is opened. Alternatively, the filter 8 is covered by a rotating cover 23 attached to the support part 5, which is assisted by a spring and placed in the closed position shown by the chain line.

Effects of the Invention The inlet is provided in the gap between the windshield and the rear end of the bonnet, and the fresh air is guided downward away from the bonnet and then redirected under the grid member 13, so that it is not affected by sunlight. This prevents the incoming air from heating up. Furthermore, the large change in direction of the air under the grid member 13 results in effective separation of foreign particles.

[Brief explanation of the drawing]

FIG. 1 is a view of a first embodiment of the invention with a suction scoop attached to a support. FIG. 2 shows a second embodiment of the invention in which the intake scoop is constructed in the area of the bonnet. 2...Blower, 3...Housing, 5...Support part, 8
...filter, 9...water separator, 10...air inlet,
11...windshield, 12...bonnet, 1
3...Grate member, 14...Suction scoop, 15...Grate plate.

Claims (1)

[Claims] 1. Air inlet 10 formed in the gap between the windshield 11 and the adjacent bonnet 12
, a replaceable filter 8, a support part 5 that houses the filter, a movable suction scoop 14 that covers the upper end of the support part, a lattice member 13 for air intake connected to the lower part of the suction scoop, and a lower part of the lattice member. an air supply device connected to the housing of the blower upstream of the blower of a heating or air conditioning system of a motor vehicle, said intake scoop 14 being attached to the upper end of the support part 5; It is thermally shielded from the bonnet, a part of which forms a protrusion towards the air inlet 10, and said grate member 13 is provided below said protrusion of the intake scoop 14, one end of which is connected to the air flow. The air supply device is installed near the upper end of the support part 5 facing the inlet 10, and fresh air is diverted at the support part and supplied through the grid member 13. 2. The foreign matter removal device includes a lattice plate 15 that is provided facing the lattice member 13 and has one end attached below the support portion 5 facing the air inlet 10;
The air supply device according to claim 1, further comprising a water separator 9 provided below the air supply device. 3. The air supply device according to claim 1, wherein the suction scoop 14 is made of a heat insulating material. 4 The upper side 18 of the intake scoop 14 is the bonnet 1
2. The air supply device according to claim 1 or 2, wherein the air supply device is insulated from the air supply device. 5. The air supply device according to any one of claims 1 to 3, wherein the suction scoop 14 is rotatably attached to the support part. 6. The suction scoop 14 is constituted by a wall region 20 integral with the bonnet 12.
The air supply device according to any one of items 1 to 4. 7. The air supply device according to claim 5, wherein the support portion 5 housing the filter 8 is covered with a rotating cover 23 articulated to the support portion 5 when the bonnet 12 is rotated and opened.