发明名称 |
Use of a variable valve actuation system to control the exhaust gas temperature and space velocity of aftertreatment system feedgas |
摘要 |
A method for controlling the temperature and/or space velocity of exhaust gas passing through an aftertreatment device disposed in the exhaust system of a diesel engine provides an optimal environment for efficient conversion of NOx and undesirable emissions during transient and steady state engine operation. The method includes controlling intake and/or exhaust valve timing, either singly or in combination with fuel injection timing and selective individual cylinder cutout, in response to sensed engine operating parameters.
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申请公布号 |
US6948310(B2) |
申请公布日期 |
2005.09.27 |
申请号 |
US20020261128 |
申请日期 |
2002.10.01 |
申请人 |
SOUTHWEST RES INST |
发明人 |
ROBERTS, JR. CHARLES E.;MATHEAUS ANDREW C.;BRANYON DAVID P.;STANGLMAIER RUDOLF H;DODGE LEE G.;RYAN, III THOMAS W.;STEWART DANIEL W. |
分类号 |
F01N3/08;F02D13/02;F02D41/00;F02D41/34;F02D41/38;(IPC1-7):F01N3/00 |
主分类号 |
F01N3/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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