发明名称 |
Fuel injector nozzle |
摘要 |
A fuel injector nozzle is disclosed which solves a long-standing problem in the industry of reducing polluting engine emissions. The nozzle has a needle which alternately blocks and leaves open spray holes for delivering fuel to the combustion chamber. The needle is received in a cavity where the injector needle seats. Machining the seat of the cavity causes a sac at the nozzle tip where the unburned fuel causes the polluting emissions. Minimizing the sac volume minimizes the polluting emissions. The present invention discloses a nozzle formed with a seat having an apex located at the bottom of a sac. The design of the present minimizes the sac volume and the sac volume is closer to zero volume than any prior design.
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申请公布号 |
US6491237(B1) |
申请公布日期 |
2002.12.10 |
申请号 |
US20000591985 |
申请日期 |
2000.06.12 |
申请人 |
HATCH & KIRK, INC. |
发明人 |
COPPOLA EDOARDO;HSU NORMAN |
分类号 |
F02M57/02;F02M61/16;F02M61/18;(IPC1-7):B05M59/00;B05B1/30;F02M61/08;F02M61/20 |
主分类号 |
F02M57/02 |
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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