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:
Mar. 30, 2004
Filed:
Sep. 07, 2001
Takanori Ueda, Susono, JP;
Takeshi Okumura, Sosono, JP;
Yoshihiro Iwashita, Suntoh-gun, JP;
Kazuhiro Akihama, Aichi-gun, JP;
Masahiro Taki, Aichi-gun, JP;
Satoshi Yamazaki, Aichi-gun, JP;
Walter Weissman, Basking Ridge, NJ (US);
Bhupender S. Minhas, Bel Air, MD (US);
Other;
Abstract
A gasoline in a material fuel tank is separated into a high-RON fuel having a higher octane value than the material fuel and a low-RON fuel having a lower octane value than the material fuel, by a separator device equipped with a separation membrane. Using a fuel switching mechanism, one or both of the high-RON fuel and the low-RON fuel are supplied to the engine in accordance with the state of operation of the engine. As the octane value of a fuel can be changed in accordance with the engine operation state, the state of combustion in the engine improves, so that both an increase in engine output and an improvement in an exhaust property can be achieved.