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:
Apr. 30, 2002
Filed:
Oct. 16, 2000
Frank Pflüger, Linkenheim-Hochstetten, DE;
3K Warner Turbosystems GmbH, , DE;
Abstract
A turbocharged internal-combustion engine ( ), with at least one high-pressure stage ( ), with at least one low-pressure stage ( ), which is arranged downstream of the high-pressure stage, with bypass piping ( ) having pipe switch(es) ( ), and which connect the exhaust side ( ) of the engine with the inlet side of the low-pressure turbine ( ) with sensors for detection of the operating parameters of the engine. The high-pressure turbine ( ) is continuously flowed through by at least a minimum exhaust mass flow so that it continually circulates, a central processing unit (CPU) is provided, into which signals of the sensors are fed, the CPU actuates the pipe switch ( ) in such a way that variable partial flows of the entire exhaust mass flow are distributed to the high-pressure turbine ( ), to the low-pressure turbine ( ) and optionally to the fresh air side of the engine, and namely in order to optimize the mode of operation of the engine with a view to achieving minimum fuel consumption and/or minimum pollutant emission.