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. 26, 2016
Filed:
Dec. 23, 2014
Mahle Filter Systems Japan Corporation, Tokyo, JP;
Yuji Arase, Tokyo, JP;
Junpei Omichi, Kawagoe, JP;
Takashi Hasumi, Nishitokyo, JP;
Koji Yamasaki, Saitama, JP;
MAHLE FILTER SYSTEMS JAPAN CORPORATION, Tokyo, JP;
Abstract
To reduce size and weight of canister while improving adsorbing/desorbing performance by optimizing adsorbent that fills chamber located at air release side. Adsorbent filling chamberslocated at air portside, of a plurality of chambersthat are arranged in series along an air flow direction in caseis formed by macroscopic pore whose diameter is 50 nm or greater. The adsorbent has hollow cylindrical shape whose inside thickness is 0.6 to 1.5 mm and whose outside diameter is 4 to 6 mm or hollow spherical shape whose inside thickness is 0.6 to 1.5 mm and whose diameter is 4 to 6 mm. A ratio of volume of the macroscopic pore whose diameter is less than 500 nm to total volume of the macroscopic pore whose diameter is equal to or greater than 50 nm is within a range of 30 to 70%.