Patent ID: 6234131
Filing Date: 2001-05-22
Classification: B29C,B29L,F02B,F02M,F05C

Abstract:
A composite air intake manifold assembly adapted for use with an internal combustion engine comprising:an upper half shell formed from a polymer;a lower half shell formed from a polymer and joined to said upper half shell to define a housing having an internal cavity; anda one piece inner shell formed from a polymer and disposed within said cavity, said one piece inner shell in combination with said upper half shell and said lower half shell cooperating to define at least a pair of spaced apart generally cylindrical shaped air intake runners, each of said runners including an opened air intake end, adapted to receive atmospheric air, and an opened air inlet end, adapted to be connected to an associated an air inlet side of a cylinder head of the internal combustion engine;wherein each of said runners includes a continuous uninterrupted weld joint along substantially an entire peripheral edge thereof to sealing join said one piece inner shell said upper half shell and said lower half shell together to provide a sealed fluid path from the opened air intake end to the opened air inlet end of said runner and prevent air leakage between adjacent runners whereby a generally uniform air supply is maintained to each associated cylinder head of the internal combustion engine.