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:
Jul. 30, 2013
Filed:
Apr. 09, 2010
Alexandre Pagot, Rueil Malmaison, FR;
Eric Watel, Arras, FR;
Alexandre Pagot, Rueil Malmaison, FR;
Eric Watel, Arras, FR;
IFP, Rueil Malmaison Cedex, FR;
Abstract
The present invention relates to a two-stage supercharging system for an internal-combustion engine () comprising at least one cylinder () with an intake distributor () and an exhaust manifold (), as well as a recirculation line () for recycling the exhaust gas to the intake of said engine, said system comprising a high-pressure supercharging stage () with a turbocharger including an expansion turbine () connected to a compressor () and a low-pressure supercharging stage () with a turbocharger including an expansion turbine () connected to a compressor (), and exhaust gas purification means arranged between exhaust outlet () and turbine () of the high-pressure turbocharger. According to the invention, the system comprises an exhaust gas bypass branch () going from outlet () of the engine exhaust and ending at turbine () of low-pressure turbocharger ().