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. 23, 2008
Filed:
Nov. 24, 2006
Masao Kano, Gamagori, JP;
Shinsuke Takakura, Kariya, JP;
Noriyasu Amano, Gamagori, JP;
DENSO Corporation, Kariya, JP;
Abstract
An evaporative fuel treatment apparatus is disclosed that includes a fuel tank and a purge passage that fluidly couples the intake path of an internal combustion engine and the fuel tank. The apparatus also includes a purge valve that is installed in the purge passage and controls the quantity of evaporative fuel purged from the fuel tank into the intake path. Furthermore, the apparatus includes an evaporative fuel status measuring device that measures a density-based status of evaporative fuel in the fuel tank. Additionally, the apparatus includes a purge valve controlling device that controls the purge valve based on the density-based status of the evaporative fuel measured by the evaporative fuel status measuring device.