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:
Dec. 20, 2005
Filed:
Dec. 08, 2004
Tetsuya Kato, Okazaki, JP;
Hideaki Itakura, Nagoya, JP;
Takanobu Kawano, Okazaki, JP;
Takashi Nishimoto, Toyota, JP;
Kouichi Oda, Chita, JP;
Tetsuya Kato, Okazaki, JP;
Hideaki Itakura, Nagoya, JP;
Takanobu Kawano, Okazaki, JP;
Takashi Nishimoto, Toyota, JP;
Kouichi Oda, Chita, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Nippon Soken, Inc., Nishio, JP;
Toyota Boshoku Kabushiki Kaisha, Kariya, JP;
Abstract
An evaporated fuel adsorbing apparatus for an engine intake passage includes a layer of activated carbon disposed in the engine intake passage for adsorbing evaporated fuel. The activated carbon includes activated carbon pellets having pores. At least one of an average pellet size and an average pore size of the activated carbon is varied in an intake gas flow direction of the engine intake passage. More particularly, an average pore size of a first portion of the activated carbon located in an atmosphere side portion of the layer is greater than an average pore size of a second portion of the activated carbon located in an engine side of the layer. An average pellet size of the first portion of the activated carbon is smaller than an average pellet size of the second portion of the activated carbon.