Port Injection System For Reduction Of Particulates From Turbocharged Direct Injection Gasoline Engines

    公开(公告)号:US20220220909A1

    公开(公告)日:2022-07-14

    申请号:US17706825

    申请日:2022-03-29

    摘要: The present invention describes a fuel-management system for minimizing particulate emissions in turbocharged direct injection gasoline engines. The system optimizes the use of port fuel injection (PFI) in combination with direct injection (DI), particularly in cold start and other transient conditions. In the present invention, the use of these control systems together with other control systems for increasing the effectiveness of port fuel injector use and for reducing particulate emissions from turbocharged direct injection engines is described. Particular attention is given to reducing particulate emissions that occur during cold start and transient conditions since a substantial fraction of the particulate emissions during a drive cycle occur at these times. Further optimization of the fuel management system for these conditions is important for reducing drive cycle emissions.

    Open-valve port fuel injection of alcohol in multiple injector engines
    17.
    发明授权
    Open-valve port fuel injection of alcohol in multiple injector engines 有权
    在多个喷油器发动机中开阀门燃油喷射酒精

    公开(公告)号:US09206761B2

    公开(公告)日:2015-12-08

    申请号:US14599904

    申请日:2015-01-19

    摘要: An engine having two or more fuel injectors is disclosed, where at least one of the injectors is used to port fuel inject fuel into the cylinder when the air intake valve is open. The open valve port fuel injector is used to inject a fuel that has alcohol as a constituent and is the same fuel injected by another fuel injector. In other embodiments, the open valve fuel injector is used to inject an anti-knock fuel containing alcohol while a primary fuel, is introduced by another injector. The operation of the open valve fuel injector can be optimized to maximize the vaporization cooling. In other embodiments, the open valve fuel injector may be used in conjunction with direct injection of the primary fuel or the anti-knock fuel. Heavy EGR can be optimally used with the various embodiments.

    摘要翻译: 公开了具有两个或更多个燃料喷射器的发动机,其中当进气阀打开时,至少一个喷射器用于将燃料喷射到气缸中。 打开的阀口燃料喷射器用于喷射具有酒精作为组分并且是由另一个燃料喷射器喷射的相同燃料的燃料。 在其它实施例中,打开的气体燃料喷射器用于注入含有酒精的防爆燃料,同时主燃料由另一个喷射器引入。 打开阀燃料喷射器的操作可以被优化以使蒸发冷却最大化。 在其他实施例中,打开的阀燃料喷射器可以与直接喷射主燃料或防爆燃料一起使用。 重型EGR可以与各种实施例最佳地使用。

    Open-Valve Port Fuel Injection Of Alcohol In Multiple Injector Engines
    18.
    发明申请
    Open-Valve Port Fuel Injection Of Alcohol In Multiple Injector Engines 审中-公开
    多口喷射发动机中的开式阀口燃油喷射酒精

    公开(公告)号:US20150128901A1

    公开(公告)日:2015-05-14

    申请号:US14599904

    申请日:2015-01-19

    IPC分类号: F02D41/30 F02D19/06

    摘要: An engine having two or more fuel injectors is disclosed, where at least one of the injectors is used to port fuel inject fuel into the cylinder when the air intake valve is open. The open valve port fuel injector is used to inject a fuel that has alcohol as a constituent and is the same fuel injected by another fuel injector. In other embodiments, the open valve fuel injector is used to inject an anti-knock fuel containing alcohol while a primary fuel, is introduced by another injector. The operation of the open valve fuel injector can be optimized to maximize the vaporization cooling. In other embodiments, the open valve fuel injector may be used in conjunction with direct injection of the primary fuel or the anti-knock fuel. Heavy EGR can be optimally used with the various embodiments.

    摘要翻译: 公开了具有两个或更多个燃料喷射器的发动机,其中当进气阀打开时,至少一个喷射器用于将燃料喷射到气缸中。 打开的阀口燃料喷射器用于喷射具有酒精作为组分并且是由另一个燃料喷射器喷射的相同燃料的燃料。 在其它实施例中,打开的气体燃料喷射器用于注入含有酒精的防爆燃料,同时主燃料由另一个喷射器引入。 打开阀燃料喷射器的操作可以被优化以使蒸发冷却最大化。 在其他实施例中,打开的阀燃料喷射器可以与直接喷射主燃料或防爆燃料一起使用。 重型EGR可以与各种实施例最佳地使用。

    Port Injection System For Reduction Of Particulates From Turbocharged Direct Injection Gasoline Engines

    公开(公告)号:US20220282675A1

    公开(公告)日:2022-09-08

    申请号:US17752266

    申请日:2022-05-24

    摘要: The present invention describes a fuel-management system for minimizing particulate emissions in turbocharged direct injection gasoline engines. The system optimizes the use of port fuel injection (PFI) in combination with direct injection (DI), particularly in cold start and other transient conditions. In the present invention, the use of these control systems together with other control systems for increasing the effectiveness of port fuel injector use and for reducing particulate emissions from turbocharged direct injection engines is described. Particular attention is given to reducing particulate emissions that occur during cold start and transient conditions since a substantial fraction of the particulate emissions during a drive cycle occur at these times. Further optimization of the fuel management system for these conditions is important for reducing drive cycle emissions.