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:
Aug. 14, 2012
Filed:
Nov. 14, 2007
Philippe Lucien Valmy Georis, Chelles, FR;
Nadja Walling, Janville, FR;
Philippe Lucien Valmy Georis, Chelles, FR;
Nadja Walling, Janville, FR;
Inergy Automotive Systems Research (Societe Anonyme), Brussels, BE;
Abstract
Process for storing an additive and injecting it into the exhaust gases of an engine and comprising two tanks for storing the additive and one pump for supplying the additive from these tanks to an injection line, these two tanks being in parallel and each being connected to the pump by a branch of the supply line, each of these branches being equipped with a non-return valve and these two valves being calibrated so that the valve located in the branch coming from the first tank () is normally open but closes when this tank is empty, and so that the valve located in the branch coming from the other tank () is normally closed but opens when the valve from tank () is closed or when the branch coming from this tank () is blocked.