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:
Sep. 22, 1998
Filed:
May. 09, 1997
Applicant:
Inventors:
Kenjiro Morota, Toyota, JP;
Kanji Sakaguchi, Toyota, JP;
Assignee:
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Primary Examiner:
Int. Cl.
CPC ...
F02M / ;
U.S. Cl.
CPC ...
12318453 ; 123593 ;
Abstract
An intake passage structure for an internal combustion engine has a first passage portion where a throttle valve is disposed and a second passage portion, downstream of the fist passage portion, where a mesh member is disposed. A relationship S.sub.1 .ltoreq..alpha.S.sub.2 holds between a cross-sectional area S.sub.1 of the first passage portion and a cross-sectional area S.sub.2 of the second passage portion where .alpha. is an open area rate of the mesh member. A clearance may be provided between a periphery of the mesh member and an inside surface of the intake pipe where the mesh member is disposed.