公开(公告)号：US5644913A

公开(公告)日：1997-07-08

申请号：US569938

申请日：1995-12-08

申请人： Nobuo Iwai ,  Seiji Hayashi ,  Motoaki Akai

发明人： Nobuo Iwai ,  Seiji Hayashi ,  Motoaki Akai

IPC分类号： F02B65/00 ,  F01N3/20 ,  F01N3/36 ,  F02D41/00 ,  F02D41/02 ,  F02D41/14 ,  F02D41/36 ,  F04B41/04

CPC分类号： F02D41/025 ,  F01N3/204 ,  F02D41/0087 ,  F02D41/1446 ,  F01N2430/02 ,  F01N2430/06 ,  Y02T10/26

摘要： A heating system for a catalytic converter of a multi-cyclinder, spark-ignition engine is provided. Half of the cylinders of the engine, for example, the cylinder #2 and the cylinder #3, are operated on a rich gas mixture with an excess air ratio of 0.6 or less to produce a combustible gas mixture comprising hydrogen, carbon monoxide, and unburned fuel components, while the remaining half of the cylinders, for example, the cylinder #1 and the cylinder #4, are utilized as air blowers to which no fuel is fed. The flammable gas mixture produced from the combustible gas produced in the cylinder #2 and the cylinder #3 and the air supplied by the cylinder #1 and the cylinder #4 is burned in the combustor equipped with an ignition device which is installed upstream from the catalytic converter to provide heat energy to activate the catalyst. The system can rapidly heat and activate the catalyst without requiring a special fuel supply system and air blower.

摘要翻译： 提供了一种用于多循环器，火花点火发动机的催化转化器的加热系统。 发动机的一半气缸，例如气缸＃2和气缸＃3，在空气比浓度为0.6以下的浓气体混合物中运转，以产生包含氢气，一氧化碳和 未燃燃料组分，而剩余的一半气缸，例如气缸＃1和汽缸＃4，被用作没有燃料供给的鼓风机。 由气缸＃2和气缸＃3中产生的可燃气体和气缸＃1和气缸＃4供应的可燃气体产生的可燃气体混合物在装有点火装置的燃烧器中燃烧，该点火装置安装在 催化转化器以提供热能来活化催化剂。 该系统可以快速加热和激活催化剂，而不需要特殊的燃料供应系统和鼓风机。