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1. 发明授权

US6062178A Method of operating uni-flow two-cycle engine during reduced load conditions 失效
标题翻译：在减载条件下运行单流双循环发动机的方法
公开(公告)号：US6062178A
公开(公告)日：2000-05-16
申请号：US82282
申请日：1998-05-20
申请人： David P. Meyers , John C. Hedrick , Gary D. Bourn , John T. Kubesh , Kevin D. Beaty , Robert W. Burrahm
发明人： David P. Meyers , John C. Hedrick , Gary D. Bourn , John T. Kubesh , Kevin D. Beaty , Robert W. Burrahm
IPC分类号： F02B25/02 , F02B29/00 , F02B33/38 , F02B37/007 , F02B37/18 , F02B75/02 , F02B25/04 , F02B33/32 , F02D9/08
CPC分类号： F02B37/02 , F02B25/02 , F02B29/00 , F02B33/38 , F02B37/007 , F02B37/18 , F02B2075/025 , Y02T10/144 , Y02T10/146
摘要： A method of operating a two-cycle internal combustion engine under low load conditions. A throttle is placed at the intake air system to reduce air intake into the engine cylinders. A pump is placed in the exhaust system, such that it creates reduced pressure downstream of the exhaust valves. In this manner, when the air intake ports close, the exhaust is evacuated and the air trapped in the cylinder is reduced. This permits fuel to be reduced so that the engine may operate in a low load state without losing combustion.
摘要翻译：一种在低负载条件下操作双循环内燃机的方法。在进气系统处放置节流阀，以减少进入发动机气缸的空气。将泵放置在排气系统中，使得其在排气阀下游产生减压。以这种方式，当进气口关闭时，排气被抽真空并且气缸内的空气减少。这允许燃料减少，使得发动机可以在低负载状态下运行而不失去燃烧。

2. 发明授权

US06227174B1 Plunger-activated unit injector for internal combustion engines 失效
标题翻译：用于内燃机的柱塞激活单元喷射器
公开(公告)号：US06227174B1
公开(公告)日：2001-05-08
申请号：US09474176
申请日：1999-12-29
申请人： John C. Hedrick , Robert W. Burrahm
发明人： John C. Hedrick , Robert W. Burrahm
IPC分类号： F02M3704
CPC分类号： F02M49/04
摘要： An electronically controlled unit injector for internal combustion engine. The unit injector is mounted on a cylinder and has a plunger that extends into the combustion chamber. Fuel flow through the unit injector is accomplished by the plunger, which moves upward into the unit injector in response to upward motion of the piston. This motion displaces fuel and pressurizes a fuel path within the unit injector, including a pressure void at the tip of the needle. The pressurized fuel lifts the needle, which permits fuel to exit through injection spray holes into the combustion chamber.
摘要翻译：一种用于内燃机的电子控制单元喷射器。单元喷射器安装在气缸上，并具有延伸到燃烧室中的柱塞。通过单元喷射器的燃料流动通过柱塞来实现，柱塞响应于活塞的向上运动向上移动到单元喷射器中。该运动移动燃料并加压单元喷射器内的燃料路径，包括针尖处的压力空隙。加压燃料提升针头，这允许燃料通过注射喷孔离开燃烧室。

3. 发明授权

US06990857B1 Fuel injector timing tool 有权
标题翻译：燃油喷射器定时工具
公开(公告)号：US06990857B1
公开(公告)日：2006-01-31
申请号：US10926861
申请日：2004-08-26
申请人： Gary D. Bourn , John C. Hedrick , Steven G. Fritz , Larry W. Wolter
发明人： Gary D. Bourn , John C. Hedrick , Steven G. Fritz , Larry W. Wolter
IPC分类号： G01M15/00
CPC分类号： F02M61/168 , F01L2103/01 , F01L2800/17 , F02M57/023
摘要： A fuel injector timing tool has an elongated tubular member on which a measurement device may be mounted. A lower end of the tubular member is attached to a base member disposed perpendicularly to the tubular member and has an open end that only partially circumscribes a plunger follower slidably disposed on a retainer element of the fuel injector. The timing tool permits ready access to an adjustable ball stud and associated lock nut mounted in a plunger actuator end of an injector rocker arm so that accurate plunger position can be set while the timing tool remains in place on the retainer element of the fuel injector.
摘要翻译：燃料喷射器定时工具具有细长的管状构件，测量装置可以安装在该细长管状构件上。管状构件的下端附接到垂直于管状构件设置的基座构件，并且具有仅部分地限制可滑动地设置在燃料喷射器的保持器元件上的柱塞从动件的开口端。定时工具允许准确地访问安装在喷射器摇臂的柱塞致动器端部中的可调节球头螺栓和相关联的锁定螺母，使得可以在定时工具保持在燃料喷射器的保持器元件上的适当位置时设置精确的柱塞位置。

4. 发明授权

US06494192B1 On-board fuel vapor collection, condensation, storage and distribution system for a vehicle 有权
标题翻译：车载燃料蒸汽收集，冷凝，储存和分配系统
公开(公告)号：US06494192B1
公开(公告)日：2002-12-17
申请号：US09879726
申请日：2001-06-12
申请人： William K. Capshaw , John C. Hedrick , David W. Naegeli , Michael G. Ross
发明人： William K. Capshaw , John C. Hedrick , David W. Naegeli , Michael G. Ross
IPC分类号： F02M116
CPC分类号： F02M37/20
摘要： An on-board fuel vapor recovery system draws vapors from a fuel tank, compresses the vapors, and then cools the compressed vapors to form a condensate liquid fuel which is stored in an auxiliary condensate tank for introduction to an engine for enhanced cold start operation.
摘要翻译：车载燃料蒸汽回收系统从燃料箱抽取蒸汽，压缩蒸汽，然后冷却压缩蒸汽，形成冷凝液体燃料，储存在辅助冷凝水箱中，引入发动机以加强冷启动运行。

5. 发明授权

US07059278B2 Locomotive engine charge air cooling system and method for cooling the engine 有权
标题翻译：机车发动机增压空气冷却系统和冷却发动机的方法
公开(公告)号：US07059278B2
公开(公告)日：2006-06-13
申请号：US11005701
申请日：2004-12-06
申请人： John C. Hedrick , Steven G. Fritz
发明人： John C. Hedrick , Steven G. Fritz
IPC分类号： F01P5/10 , F01P1/06
CPC分类号： F01P3/20 , B60L7/02 , B60L11/02 , B60L2200/26 , F01P2060/02 , Y02T10/70 , Y02T90/16
摘要： A locomotive engine having an engine cooling system, a compressor for compressing engine intake air, and an aftercooler for cooling the compressed intake air prior to introduction into an intake manifold of the engine. The locomotive also has a dynamic brake system that includes a dynamic brake grid and one or more cooling fans. The engine cooling system includes an engine cooling circuit having coolant passages internally disposed in the engine, and a radiator and radiator fans configured to receive coolant exiting the engine and return cooled coolant to the engine. An enhanced aftercooler cooling circuit is disposed in fluid communication with the engine cooling circuit and includes a heat exchanger arranged to receive coolant exiting the engine coolant passages, cool the coolant passing therethrough, and return cooled coolant to the aftercooler. The heat exchanger is advantageously positioned in a manner whereby the dynamic brake grid cooling fan is operatively associated with both the dynamic brake grid and the heat exchanger.
摘要翻译：具有发动机冷却系统的机车发动机，用于压缩发动机进气的压缩机和用于在引入发动机的进气歧管之前冷却压缩进气的后冷器。机车还具有动态制动系统，其包括动态制动网格和一个或多个冷却风扇。发动机冷却系统包括具有内部设置在发动机中的冷却剂通道的发动机冷却回路，以及散热器和散热器风扇，其构造成接收从发动机排出的冷却剂并将冷却的冷却剂返回到发动机。增强的后冷却器冷却回路设置成与发动机冷却回路流体连通，并且包括热交换器，该热交换器布置成接收从发动机冷却剂通道排出的冷却剂，冷却通过其的冷却剂，并将冷却的冷却剂返回到后冷却器。热交换器有利地以这样的方式定位，由此动态制动网格冷却风扇与动态制动网格和热交换器可操作地相关联。

6. 发明授权

US5890459A System and method for a dual fuel, direct injection combustion engine 失效
标题翻译：双燃料直喷式发动机的系统和方法
公开(公告)号：US5890459A
公开(公告)日：1999-04-06
申请号：US927608
申请日：1997-09-12
申请人： John C. Hedrick , Gary Bourn
发明人： John C. Hedrick , Gary Bourn
IPC分类号： F02B3/06 , F02B69/02 , F02M43/00 , F02B43/00
CPC分类号： F02B69/02 , F02M21/0251 , F02M21/0263 , F02M21/0275 , F02M43/00 , F02B3/06 , Y02T10/32 , Y02T10/36
摘要： A standard diesel injection system and a mechanical direct-gas injection system are selectively operable, in combination with a continuous pilot injection system, to provide a combustion system that is capable of operating in either a conventional diesel mode or a dual-fuel mode. Operation between convention diesel or dual-fuel combustion modes is mechanically controlled by a two-position, four-way control valve. The mechanical direct-gas injection system is actuated by pulsed diesel fuel directed to the actuation chamber of a gas injector by the same injection pump used to provide diesel fuel to the combustion chamber during conventional diesel operation.
摘要翻译：标准柴油喷射系统和机械直接气体喷射系统可选择性地与连续先导喷射系统组合起来，以提供能够以常规柴油模式或双燃料模式操作的燃烧系统。常规柴油或双燃料燃烧模式之间的操作由两位四通控制阀机械控制。机械直接气体喷射系统由通过用于在常规柴油操作期间向燃烧室提供柴油燃料的相同注射泵的脉冲柴油燃料致动到燃气喷射器的致动室。

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