The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 17, 2004
Filed:
Jul. 19, 2002
Michaël Pontoppidan, Colombes, FR;
Magneti Marelli France, Nanterre, FR;
Abstract
The invention concerns an intake manifold ( ) comprising a plenum ( ) and air ducts ( ) one of which at least, for each combustion chamber of the engine, has a sudden enlargement ( ) of its passage cross-section, immediately followed in downstream direction by a duct portion ( ) having a gradually decreasing cross-section and ending ( ) upstream of a flange fixing ( ) the manifold ( ) to the engine and its cylinder head. The plenum ( ) and each of the air ducts ( ) at least are made of synthetic material, preferably capable of being molded. The invention is useful for equipping internal combustion engine with pistons driven in reciprocating movement in the cylinders.