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:
Apr. 02, 2002
Filed:
Sep. 01, 2000
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A common intake port is branched into a pair of branch intake ports which are separated through a partition wall at the downstream end thereof. A pair of intake valves adapted to independently open and close the pair of branch intake ports respectively, are provided. In a four-stroke cycle internal combustion engine adapted so that one of the pair of intake valves opens and closes in a low intake air operating range, while the other intake valve is in a resting condition, and that both the pair of intake valves open and close in a high intake air operating range, a cutout is formed in a laterally central portion of the partition wall in such a way as to extend from the edge of the upstream end of the partition wall toward the downstream end thereof and to separate the pair of branch intake ports from each other.