IMPROVEMENT OF THE AIR INTAKE MANIFOLD FOR AUTOMOTIVE AIR CONDITIONING SYSTEMS

The air inlet neck with a sealing plate and multiple seals addresses the issue of noise transmission by providing enhanced acoustic insulation at the connection between the air inlet neck and fluid lines, optimizing vehicle layout and improving passenger compartment comfort.

FR3151384B1Active Publication Date: 2026-08-07STELLANTIS AUTO SAS
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Patent Information

Application Number
FR2023007860
Authority / Receiving Office
FR · FR
Patent Type
Patents
Current Assignee / Owner
Filing Date
2023-07-21
Publication Date
2026-08-07
Estimated Expiration
2043-07-21

AI Technical Summary

Technical Problem

Existing air conditioning systems in vehicles suffer from inadequate acoustic insulation at the connection between the air inlet neck and fluid lines, leading to unwanted noise transmission into the passenger compartment due to space constraints and the inability to install additional sound insulation means.

Method used

An air inlet neck with a downward extension in the form of a sealing plate, integrated into the existing neck, which covers the orifice surrounding the fluid line interface, and is equipped with multiple seals to provide hermetic sealing and enhanced sound insulation.

Benefits of technology

The solution effectively blocks parasitic noise from entering the passenger compartment, optimizing the vehicle's layout without requiring a complete overhaul and enhancing acoustic insulation at the critical connection points.

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Abstract

The invention relates to an air inlet neck (1) for a motor vehicle air conditioning system, said neck being intended to be mounted on the front wall of a bulkhead (T) which delimits, towards the front, the passenger compartment of the vehicle and which is provided with a through opening (B) into which a sleeve (11) carried by said neck is inserted and in which an interface (2) grouping fluid lines (3) is housed, characterized in that the sleeve (11) of said neck is extended downwards as a single piece by a plate (12) for closing the portion of the opening (B) surrounding the interface (2) of the fluid lines (3). (Fig. 2)
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