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. 25, 2009
Filed:
Sep. 10, 2007
Jean-luc Perrin, Girmont, FR;
Philippe Renaud, Sanchey, FR;
Yannick Prebost, Charmes, FR;
Honeywell International, Inc., Morristown, NJ (US);
Abstract
A multiple-turbocharger system for an internal combustion engine includes a first turbocharger comprising a first compressor driven by a first turbine, the first turbine operable to be driven by exhaust gas from the engine; a second turbocharger comprising a second compressor driven by a second turbine, the second turbine operable to be driven by exhaust gas from the engine; a first conduit arranged for supplying exhaust gas from the engine to the first turbine, and a second conduit arranged for supplying exhaust gas from the engine to the second turbine; and a valve coupled with the second conduit and switchable between an open condition allowing exhaust gas flow from the second conduit to the second turbine, and a closed condition substantially preventing exhaust gas flow from the second conduit to the second turbine but allowing a leakage flow to the second turbine sufficient to keep the second turbine rotating.