公开(公告)号：US4876989A

公开(公告)日：1989-10-31

申请号：US192243

申请日：1988-05-10

申请人： Michael E. Karpuk ,  Scott W. Cowley

发明人： Michael E. Karpuk ,  Scott W. Cowley

IPC分类号： F02B1/02 ,  F02B1/04 ,  F02M1/16 ,  F02M27/02

CPC分类号： F02M27/02 ,  F02B1/02 ,  F02D19/0647 ,  F02D19/0655 ,  F02D19/0671 ,  F02M1/165 ,  F02B1/04 ,  Y02T10/36

摘要： Apparatus and method are described for enhancing performance of an alcohol fueled engine during cold conditions, with such enhancement being particularly effected by generation of ether to assist cold operation including starting and/or to achieve reduced emissions during cold running. Dimethyl ether is generated by catalytic dehydration of vaporized methanol using a catalyst, preferably fluorinated alumina. Apparatus is disclosed for generating dimethyl ether on board as needed for immediate mixing with combustion air and methanol and/or for storage to enable later mixing of the dimethyl ether with combustion air and methanol to effect subsequent cold starts and/or cold running operations.

摘要翻译： 描述了用于在寒冷条件下提高酒精燃料发动机的性能的装置和方法，其特别是通过产生醚以辅助冷运行（包括起动和/或在冷运行期间实现减少的排放）而实现。 二甲醚是通过使用催化剂，优选氟化氧化铝的蒸发甲醇的催化脱水生成的。 公开了用于根据需要立即与燃烧空气和甲醇混合并/或用于储存以使二甲基醚与燃烧空气和甲醇稍后混合以实现随后的冷启动和/或冷运行操作的装置。