发明名称 |
Treated port fuel injectors |
摘要 |
Treated port fuel injectors are disclosed. The treated port fuel injectors have a surface coated with a film which resists or limits deposit formation on the injector surface. The film may be formed by contacting the port fuel injector with: (i) a succinimide compound comprising the reaction product of polyisobutylene-substituted succinic anhydride and a polyamine; (ii) a Mannich base detergent; and (iii) a spark ignition fuel. The treated port fuel injectors may also include a film formed by contacting the port fuel injector with: (i) a Mannich condensation reaction product of a polyamine having a sterically-hindered primary amino group, a hydrocarbyl-substituted hydroxyaromatic compound, and an aldehyde; and (ii) a spark ignition fuel. Methods of forming films on port fuel injector surfaces are also disclosed.
|
申请公布号 |
US7422161(B2) |
申请公布日期 |
2008.09.09 |
申请号 |
US20060393271 |
申请日期 |
2006.03.30 |
申请人 |
AFTON CHEMICAL CORPORATION |
发明人 |
HOU PETER W.;MALFER DENNIS J.;NICHOLS THOMAS WILLIAM |
分类号 |
B05B1/28;C10L1/22 |
主分类号 |
B05B1/28 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|