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. 06, 2005
Filed:
Jan. 30, 2003
Randall D. Partridge, Califon, NJ (US);
Walter Weissman, Basking Ridge, NJ (US);
Takanori Ueda, Susono, JP;
Yoshihiro Iwashita, Susono, JP;
Randall D. Partridge, Califon, NJ (US);
Walter Weissman, Basking Ridge, NJ (US);
Takanori Ueda, Susono, JP;
Yoshihiro Iwashita, Susono, JP;
Exxonmobil Research and Engineering Company, Annandale, NJ (US);
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
An onboard fuel separation apparatus separates a material fuel (gasoline) into a high-octane fuel having a higher octane value than the material fuel and a low-octane fuel having a lower octane value than the material fuel using a separation membrane which selectively allows high-octane value components (such as aromatic components) permeate through the membrane. The apparatus increases the ratio of the amount of the high-octane value components permeating through the membrane to the amount of the high-octane value components contained in the material fuel by, (A) Controlling the temperature of the material fuel supplied to the membrane (B) Increasing partial pressure of the low-octane value components on the high-octane fuel side of the membrane and removing volatiles from the permeate, and (C) Bypassing volatiles in the material feed around the membrane.