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:
Jan. 29, 2013
Filed:
Dec. 21, 2007
Bruno Gaudin, Chozeau, FR;
Mourad Hedna, Lyons, FR;
Philip Meier, Hagerstown, MD (US);
James E. Marsden, Hagerstown, MD (US);
Bruno Gaudin, Chozeau, FR;
Mourad Hedna, Lyons, FR;
Philip Meier, Hagerstown, MD (US);
James E. Marsden, Hagerstown, MD (US);
Renault Trucks, St. Priest, FR;
Abstract
An apparatus is provided for injection of a fluid for an exhaust gases treatment device of an internal combustion engine arrangement. The apparatus includes a fluid injector fed from a source of fluid under pressure through a fluid conduit, a feed valve in the fluid conduit between the source of fluid the said injector, a purge system including a gas conduit connecting a source of pressurized gas to the fluid conduit, a pressure limiter within the gas conduit, and a check valve downstream of the pressure limiter. The pressure limited by the pressure limiter is lower than the pressure of fluid delivered by the source of fluid.