Device for exhaust gas recirculation into the air

专利名称：Device for exhaust gas recirculation into the

air intake region of motor vehicle internalcombustion engines

发明人：Karlheinz Wienand,Matthias Muziol,Karlheinz

Ullrich,Gerhard Damaschke

申请号：US10322317申请日：20021217

公开号：US20030101974A1公开日：20030605

专利附图：

摘要：For reduction of toxic components in exhaust gases of internal combustion

engines, particularly of nitrogen oxides in motor vehicles, a portion of the exhaust gases,essentially operating as inert gases, are recirculated into the combustion chamber of theengine for the purpose of reducing the peak combustion temperature. In the air intakeregion the engine is fed an adjustable mixture of partially recirculated exhaust gas andair, wherein the mass of in-flowing air and the mass of exhaust gas recirculated from theengine following its cleaning and cooling are fed respectively to its own flow rate sensor.From the determined mass flow amounts of in-flowing air and recirculated exhaust gas,an actual value signal is formed and compared with a target value signal dependent uponthe respective performance specification. A regulation deviation of the actual value signalleads to an adjustment signal, which intervenes into the exhaust gas recirculation for thepurpose of adjusting the amount recirculated.

申请人：HERAEUS ELECTRO-NITE INTERNATIONAL N.V.

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