发明名称 |
METHODS FOR VARNISH REMOVAL AND PREVENTION IN AN INTERNAL COMBUSTION ENGINE |
摘要 |
Methods for removing and preventing the buildup of unwanted deposits and varnishes on combustion chamber surfaces, particularly injector-igniter components that are exposed to combustion events. A method of removing deposits from an injector-igniter comprises monitoring the current across a pair of electrodes in the injector-igniter, comparing the current with a predetermined threshold level, and performing a cleaning cycle if the current exceeds the threshold level. The cleaning cycle may comprise injecting oxidant through the injector-igniter and into the combustion chamber. The cleaning cycle may further comprise ionizing the oxidant with an electrical discharge having a first polarity and ionizing the oxidant a second time with an electrical discharge having a second polarity. In other cases the cleaning cycle comprises injecting hydrogen through the injector-igniter and into the combustion chamber. In still other cases the cleaning cycle may comprise injecting coolant onto the electrodes. |
申请公布号 |
US2015040938(A1) |
申请公布日期 |
2015.02.12 |
申请号 |
US201414206086 |
申请日期 |
2014.03.12 |
申请人 |
McAlister Technologies, LLC |
发明人 |
McAlister Roy Edward |
分类号 |
F23J3/00;B08B7/04;B08B3/12 |
主分类号 |
F23J3/00 |
代理机构 |
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代理人 |
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主权项 |
1. A method of removing deposits from an injector-igniter exposed to combustion events in a combustion chamber, the method comprising:
monitoring the current across a pair of electrodes in the injector-igniter; comparing the current with a predetermined threshold level; and performing a cleaning cycle if the current exceeds the threshold level. |
地址 |
Phoenix AZ US |