DE3503600A1 - VENTILATION HOUSING FOR MOTOR VEHICLES - Google Patents

Description

Patent application P · Förd / D-590/22. January 1985

PATENT APPLICATION FOR VENTILATION HOUSING FOR VEHICLES

The invention relates to a ventilation housing for motor vehicles, which is concealed behind the side bumper parts and a main body made of elastic material that can be clipped into an opening in the fender Has material on which a deflector cap is integrally formed and in which a membrane flap is arranged.

From DE-PS 26 03 297 is a passenger compartment ventilation for passenger cars known, in which a ventilation opening is concealed behind side bumper parts and is arranged by a deflector cap or hood is protected against splash water from above.

A similar passenger compartment ventilation is from a use on the Audi 100 vehicle model known, in which the vent opening through a vent housing made of elastic material with integrally formed Deflector cap is lined.

This known arrangement of a ventilation opening or this ventilation opening lining the ventilation housing have the disadvantage that the immediate ventilation opening and especially the sensitive The membrane flap is not properly protected against the ingress of splash water and dirt from below, which is especially true for a short time Rear overhang of a motor vehicle, in which the position of the ventilation opening comes in close proximity to the rear wheels, creates difficulties can lead.

The object of the invention is to provide a ventilation housing of the known Kind to improve so that on the one hand a protection against from the drive wheels thrown up spray or dirty water is achieved and on the other hand a desired more favorable change in the pressure gradient is reached in the area of the vent.

Patent application P ------ tfÖrd / D-590/22. January 1985

According to the invention, this object is achieved in that a ventilation housing of the type explained in the preamble of claim is in the Characteristic part of the claim has shown features.

In that an air guiding flap is integral with the main body is formed, the resiliently held lip edges the front and lower part of the area adjacent to the ventilation opening on the one hand, a reliable protection against Splash water or dirt thrown up by the drive wheels is achieved and, on the other hand, the pressure conditions are in the range of Desirably changed vent opening so that a steady negative pressure is achieved in this area.

The invention is illustrated by means of one in the accompanying drawings Embodiment explained in more detail.

It shows:

Fig. 1 is a side view of an inventive

Ventilation housing with bumper removed and

FIG. 2 shows a vertical section along the line II-II in FIG

Fig. 1 with the bumper indicated in dashed lines.

In Fig. 1, a vent opening 2 is in a fender 1 with a solid line Flanged edge formed in which a vent housing 3 made of elastic material is clipped in a known manner. The ventilation housing 3 made of elastic material consists essentially of a main body 4, from which there is a circumferential bead edge 5 with locking edges 6 extends to the rear and from which an integrally molded deflector cap 7 extends to the front. The main body 4 has a subdivided by webs 8 ventilation opening 9, which is of a Membrane flap 10 is overlapped.

Patent application P Ford / D-59O / 22. January 1985

The membrane flap 10 is kept so thin and flexible in a known manner that that it opens with an internal pressure in the passenger compartment and a negative pressure on the outside, whereas it opens with a reversal the pressure ratio closes in order to prevent dust or exhaust gases from flowing into the passenger compartment.

As can be seen from Fig. 2, the arrangement of the vent housing 3 taken so that it is covered by side bumper parts 11, which are indicated in dashed lines.

In motor vehicles with a shorter rear body overhang, it has it has been shown that spray material thrown up by the drive wheels and dirty water got into the area of the ventilation housing 3 and here the function of the membrane flap 10 due to the accumulation of dirt impaired. In addition, with unfavorable flow conditions it could occur that the desired negative pressure in the area of the Vent housing 3 was not steady and large enough.

According to the invention, therefore, the front and lower parts of the Vent 2 adjacent area through an air guide flap

12, which is integral with the main body 4 of the vent housing 3 is formed and its lip edges held in a flexible manner

13 sealing the inner surfaces of the bumper 11 in front of it snuggle up.

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Claims (1)

Patent application P "Förd / D-590 / January 22, 1985 PATENT CLAIM Ventilation housing for motor vehicles, which is arranged concealed behind side bumper parts and has a main body made of elastic material that can be clipped into an opening in the fender, on which a deflector cap is formed in one piece and in which a membrane flap is arranged, characterized in that in one piece with the main body (3 ) an air guiding flap (12) is formed which encompasses the front and lower part of the area adjacent to the ventilation opening (9) and whose flexible lip edges (13) nestle against the inner surfaces of the bumper part (11) in front of it.