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1. 发明授权

US07072757B2 Fuel control system 失效
公开(公告)号：US07072757B2
公开(公告)日：2006-07-04
申请号：US10166336
申请日：2001-10-29
申请人： Robert E. Adams , Douglas M. Chevalier , Jeffery T. Fischer , Robert C. Griffith, Jr. , Bin He , Diane M. Laugel
发明人： Robert E. Adams , Douglas M. Chevalier , Jeffery T. Fischer , Robert C. Griffith, Jr. , Bin He , Diane M. Laugel
IPC分类号： B60T7/12
CPC分类号： F02D41/061 , F02D41/062 , F02D41/221 , F02D41/406 , Y02T10/44
摘要： An apparatus and method of controlling an engine by determining the state of an ignition command device and the speed of an engine and operating a fuel pump during a predetermined period in response to the ignition command device being in a predetermined state and the speed being substantially zero.

2. 发明授权

US06289871B1 Method for achieving minimum liquid pilot fuel delivery to each cylinder of a dual fuel engine while operating in a dual fuel mode 失效
标题翻译：用于在双燃料模式下操作时实现双燃料发动机的每个气缸的最小液体先导燃料输送的方法
公开(公告)号：US06289871B1
公开(公告)日：2001-09-18
申请号：US09036045
申请日：1998-03-06
申请人： Scott C. Brown , Jeffery T. Fischer , Martin L. Willi
发明人： Scott C. Brown , Jeffery T. Fischer , Martin L. Willi
IPC分类号： F02B300
CPC分类号： F02D41/008 , F02D19/061 , F02D19/0628 , F02D19/105 , F02D35/023 , F02D41/0025 , F02D41/0027 , F02D41/1446 , Y02T10/36
摘要： A method for controlling and adjusting the delivery of liquid pilot fuel to each cylinder of a dual fuel engine during a dual fuel operating mode so as to both minimize the quantity of liquid pilot fuel being delivered to each individual cylinder while, at the same time, ensuring that such minimum quantity of liquid pilot fuel provides complete combustion performance within each such cylinder wherein certain cylinder performance parameters such as exhaust port temperature or cylinder pressure are evaluated on a per cylinder basis in order to determine cylinder performance. The present method establishes certain predetermined incremental changes in the selected cylinder performance parameters, which changes are indicative of poor or deteriorated combustion performance within any particular cylinder, and thereafter varies the amount of liquid pilot fuel delivered to such cylinder based upon an analysis and evaluation of changes occurring in the selected cylinder performance parameters. Although it is preferred that each cylinder be evaluated on an individual basis, it is recognized and anticipated that, in some applications, the present method may be used to control the delivery of liquid pilot fuel to two or more cylinders simultaneously.
摘要翻译：一种用于在双燃料运行模式期间控制和调节液体引燃燃料输送到双燃料发动机的每个气缸的方法，以便使输送到每个气缸的液体引燃燃料的量最小化，同时，确保这种最小量的液体引燃燃料在每个这样的气缸内提供完整的燃烧性能，其中某些气缸性能参数（例如排气口温度或气缸压力）以每缸为基础进行评估，以便确定气缸性能。本方法在所选择的气缸性能参数中建立某些预定的增量变化，该变化指示在任何特定气缸内的燃烧性能差或劣化，然后根据分析和评价来改变输送到这种气缸的液体引燃燃料的量所选气缸性能参数发生变化。虽然优选每个气缸在个别基础上进行评估，但是应当认识到并预期在某些应用中，本方法可用于控制液体引燃燃料同时向两个或多个气缸的输送。

3. 发明授权

US5868121A Method and apparatus for relieving a differential pressure across a gaseous fuel admission valve of a dual fuel engine 失效
标题翻译：用于缓解双燃料发动机的气体燃料进入阀上的压差的方法和装置
公开(公告)号：US5868121A
公开(公告)日：1999-02-09
申请号：US995254
申请日：1997-12-19
申请人： Scott C. Brown , Jeffery T. Fischer , Eric W. Ohlson , Martin L. Willi
发明人： Scott C. Brown , Jeffery T. Fischer , Eric W. Ohlson , Martin L. Willi
IPC分类号： F02D19/02 , F02D19/10 , F02M21/02 , F02M21/00
CPC分类号： F02D19/0631 , F02D19/022 , F02D19/027 , F02D19/105 , F02M21/0242 , F02M21/0254 , F02M21/0266 , Y02T10/32 , Y02T10/36
摘要： A fuel pressure relief system for a dual fuel engine including at least one gaseous fuel admission valve positioned between a gaseous fuel inlet region and an air intake region is provided. The system includes a first pressure sensor positioned in the gaseous fuel inlet region and a second pressure sensor positioned in the air intake region. An electronic controller is connected to the first pressure sensor and the second pressure sensor. A gaseous fuel vent path extends between the gaseous fuel inlet region and a portion of an air intake path of the engine. A vent valve is positioned along the gaseous fuel vent path and is connected to the electronic controller for control thereby. When the differential pressure across the gaseous fuel admission valve exceeds a predetermined level the fuel vent valve is opened to relieve the pressure.
摘要翻译：提供了一种用于双燃料发动机的燃料压力释放系统，其包括位于气体燃料入口区域和进气区域之间的至少一个气体燃料进入阀。该系统包括位于气体燃料入口区域中的第一压力传感器和位于进气区域中的第二压力传感器。电子控制器连接到第一压力传感器和第二压力传感器。气体燃料通气路径在气体燃料入口区域和发动机的进气路径的一部分之间延伸。排气阀沿着气体燃料通气路径定位，并连接到电子控制器以进行控制。当气体燃料进入阀两端的压差超过预定值时，打开燃油通气阀以减轻压力。

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