发明公开
EP1430210A1 VERFAHREN ZUM VERMEIDEN EINER SPRITZLOCHINNENVERKOKUNG VON SPRITZLÖCHERN EINES MEHRLOCH-EINSPRITZVENTILS
有权
方法避免了多孔喷射阀的SPRITZLOCHINNENVERKOKUNG喷射孔
- 专利标题: VERFAHREN ZUM VERMEIDEN EINER SPRITZLOCHINNENVERKOKUNG VON SPRITZLÖCHERN EINES MEHRLOCH-EINSPRITZVENTILS
- 专利标题(英): Method for avoiding an internal coking of an injection hole for injection holes in a multi-hole injection valve
- 专利标题(中): 方法避免了多孔喷射阀的SPRITZLOCHINNENVERKOKUNG喷射孔
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申请号: EP02799358.3申请日: 2002-07-26
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公开(公告)号: EP1430210A1公开(公告)日: 2004-06-23
- 发明人: BRITSCH, Heinz , WUERFEL, Gernot
- 申请人: ROBERT BOSCH GMBH
- 申请人地址: Postfach 30 02 20 70442 Stuttgart DE
- 专利权人: ROBERT BOSCH GMBH
- 当前专利权人: ROBERT BOSCH GMBH
- 当前专利权人地址: Postfach 30 02 20 70442 Stuttgart DE
- 优先权: DE10145580 20010915
- 国际公布: WO2003027473 20030403
- 主分类号: F02D41/40
- IPC分类号: F02D41/40
摘要:
A method for avoiding an injector orifice internal coking of the spray orifices of a multi-orifice fuel injector of a direct injection internal combustion engine, e.g., of a motor vehicle, is provided. Fuel is injected into a combustion chamber of the internal combustion engine by multiple injections. The fuel is injected by a first main injection during the intake stroke and by a subsequent postinjection during the compression stroke before the ignition time. Thereby, during a long operation of the internal combustion engine, especially in a homogeneous operation, the injection time does not have to be continually increased in order to compensate for the increasingly shrinking cross section of the spray orifices.
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