Air duct for a vehicle and method for manufacturing the air duct

Abstract

Air duct line ( 2 ) for combustion engines, in particular for motor vehicles, consisting of at least two line parts ( 4 , 6 ) consisting of The plastic materials are manufactured by means of injection moulding and are connected to each other along interconnecting lines (8) consisting of interconnecting pipes (10) consisting of interconnections for each respective pipe part Components (12, 14) are formed in the area of ​​interconnect lines (8). The pipe parts (4, 6) are connected to each other by injecting said plastic material into said interconnecting duct (10) and are sealingly joined to each other. The interconnecting parts (12, 14) comprise internal interconnecting parts (16, 18) designed such that they form a uniform interconnecting surface (20) on the inside of the air duct pipe (2) and It is adapted to absorb pressure from the interconnecting duct (10) during injection of said plastics material into the interconnecting duct. The interconnecting members (12, 14) include outer interconnecting members (22, 24) adapted to mechanically keep the line members interconnected.

Description

technical field [0001] The invention relates to an air duct for a vehicle and a method for producing an air duct according to the preambles of the independent claims. Background technique [0002] In addition to ongoing efforts within the automotive industry to improve vehicle fuel economy, increasingly stringent environmental requirements must be met. Continuing efforts are also required to reduce the cost of the components involved, while at the same time maintaining or improving the quality of said components. [0003] The air ducts for the clean air from the filter to the inlet of the compressor (supercharger) are currently manufactured as blow molded plastic parts, cast rubber parts, or sometimes even as metal parts. The geometry of the pipes is often complex, with the result that injection molding of plastic parts has not been involved until now. [0004] With manufacturing methods other than injection molding, some post-processing of the part must be performed, as t...

AI Technical Summary

Problems solved by technology

[0010] A disadvantage of the ductwork in use today is that it is complex to manufacture ductwork of sufficient quality for the purity, weight and geometry such ducting has

In addition, the pipe can have multiple bends which further complicate its manufacture

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