HEATING, VENTILATION, OR AIR CONDITIONING SYSTEM

Abstract

A heating, ventilation, or air conditioning system having a housing , for a motor vehicle having a firewall, wherein the firewall has at least one opening, wherein the housing projects through the opening, wherein the housing has at least a first housing part and at least a second housing part, wherein the first housing part rests against the firewall with a seal interposed and is attached to the firewall, wherein a portion of the first housing part projects through the opening, and the second housing part is attached in a sealed manner to the portion of the first housing part that projects through the opening.

Claims

1. A heating, ventilation, or air conditioning system comprising: a housing adapted to be arranged in a motor vehicle having a firewall that has at least one opening and the housing projecting through the opening, the housing having at least a first housing part and at least a second housing part, the first housing part resting against the firewall; and a seal interposed and attached to the firewall, wherein a portion of the first housing part projects through the opening, and wherein the second housing part is attached in a sealed manner to the portion of the first housing part that projects through the opening.

2. The heating, ventilation, or air conditioning system according to claim 1, wherein the first housing part presses against the firewall while loading the seal, and is attached to the firewall.

3. The heating, ventilation, or air conditioning system according to claim 1, wherein the seal is a compressible seal or an essentially incompressible seal.

4. The heating, ventilation, or air conditioning system according to claim 1, wherein the seal is or has a foam seal, in particular of a skinned foam and/or of an impregnated foam, an EPDM, rubber, and/or elastomer seal.

5. The heating, ventilation, or air conditioning system according to claim 1, wherein the seal is a seal that surrounds the opening and that rests against the firewall all around the opening.

6. The heating, ventilation, or air conditioning system according to claim 1, wherein the first housing part is attached to the firewall by threaded connection, by clips, by means of dovetail connections, and/or by means of suspensions.

7. The heating, ventilation, or air conditioning system according to claim 1, wherein the threaded connection of the first housing part to the firewall is accomplished by screws, stud bolts, double-threaded bolts, and/or locked screws through through-holes in the housing part and/or in the firewall.

8. The heating, ventilation, or air conditioning system according to claim 1, wherein the second housing part is sealed and attached to the first housing part by a tongue-and-groove connection.

9. A motor vehicle comprising a firewall that separates the motor vehicle interior from a motor vehicle front end, and having a heating, ventilation, or air conditioning system according to claim 1.

10. The motor vehicle according to claim 9, wherein the first housing part is arranged in the motor vehicle interior and the second housing part is arranged in the motor vehicle front end, or wherein the first housing part is arranged in the motor vehicle front end and the second housing part is arranged in the motor vehicle interior.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will become more fully understood from the detailed description given hereinbelow and the accompanying drawings which are given by way of illustration only, and thus, are not limitive of the present invention, and wherein:

[0018] FIG. 1 is a schematic partial representation of a heating, ventilation, or air conditioning system having an attachment to a firewall, and

[0019] FIG. 2 is another schematic partial representation of a heating, ventilation, or air conditioning system having an attachment to a firewall.

DETAILED DESCRIPTION

[0020] FIG. 1 shows a schematic partial representation of a heating, ventilation, or air conditioning system 1 that is attached to a firewall 2 of a motor vehicle. The firewall 2 in this design separates the vehicle interior from a vehicle front end or an engine compartment.

[0021] The heating, ventilation, or air conditioning system 1 has a housing 3 with at least one air duct 5 arranged therein, wherein optional heat exchangers and air flow control elements typically are provided in the housing 3. Depending on the design, an evaporator and/or a heater, an air filter, and a fan may therefore be provided.

[0022] The firewall 2 has an opening 4. The housing 3 projects through the opening 4 in order to use space both in front of the firewall 2 and behind the firewall 2 for the heating, ventilation, or air conditioning system 1.

[0023] In order to design this in an advantageous way, the housing 3 has at least a first housing part 6 and at least a second housing part 7. The first housing part 6 rests against the firewall 2 with a seal 8 interposed, wherein the first housing part 6 is also attached to the firewall 2 by means of fasteners 9.

[0024] The first housing part 6 is preferably arranged largely on one side of the firewall 2, wherein a portion 10 of the first housing part 6 also projects through the opening 4, which is to say on the other side of the firewall 2. The second housing part 7 is attached in a sealed manner to the portion 10 of the first housing part 6 that projects through the opening 4.

[0025] It can be seen in FIG. 1 that the first housing part 6 presses against the firewall 2 while loading the seal 8, and is attached to the firewall 2.

[0026] The seal 8 can be arranged between the firewall 2 and a flange 11 of the first housing part 6, and is clamped therebetween. Advantageously, the seal 8 is a compressible seal or an essentially incompressible seal that is loaded so as to seal.

[0027] In an exemplary embodiment, the seal 8 is a foam seal, in particular of a skinned foam and/or of an impregnated foam, an EPDM, rubber, and/or elastomer seal, or has such a seal. Preferably, the seal 8 is a seal 8 that surrounds the opening 4 and that rests against the firewall 2 all around the opening 4.

[0028] It is also advantageous when the first housing part 6 is attached to the firewall 2 by threaded connection, by clips, by means of dovetail connections, and/or by means of suspensions. In this case, the threaded connection of the first housing part 6 to the firewall 2 can be accomplished by means of screws, stud bolts, double-threaded bolts, and/or locked screws through through-holes in the first housing part 6 and/or in the firewall 2.

[0029] In addition, it can be seen in FIG. 2 that the second housing part 7 is arranged to be sealed and attached to the first housing part 6 by means of a tongue-and-groove connection 12. For this purpose, a tongue of the first housing part 6 is pushed into a groove of the second housing part 7 and/or a tongue of the second housing part 7 is pushed into a groove of the first housing part 6.

[0030] The heating, ventilation, or air conditioning system 1 according to the invention is advantageously installed in a motor vehicle having a firewall 2, wherein the firewall 2 separates the motor vehicle interior from a motor vehicle front end. In this design, the first housing part 6 can be arranged in the motor vehicle interior and the second housing part 7 in the motor vehicle front end, or the first housing part 6 can be arranged in the motor vehicle front end and the second housing part 7 in the motor vehicle interior.

[0031] The invention being thus described, it will be obvious that the same may be varied in many ways. Such variations are not to be regarded as a departure from the spirit and scope of the invention, and all such modifications as would be obvious to one skilled in the art are to be included within the scope of the following claims.