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1. 发明授权

US07124744B2 Variable control orifice member and fuel injector using same 有权
标题翻译：变量控制孔构件和使用其的燃油喷射器
公开(公告)号：US07124744B2
公开(公告)日：2006-10-24
申请号：US10631291
申请日：2003-07-31
申请人： Norval J. Weimken , Xinshuang Nan , Ye Tian , Lifeng Wang , Jianyuan Yang , Ronald D. Shinogle , Chetan J. Desai
发明人： Norval J. Weimken , Xinshuang Nan , Ye Tian , Lifeng Wang , Jianyuan Yang , Ronald D. Shinogle , Chetan J. Desai
IPC分类号： F02M37/04
CPC分类号： F02M57/025 , F02M47/027 , F02M61/161
摘要： Engineers have determined that the ability to front end rate shape injection events can result in a number of advantages, including improved injector performance and a reduction in undesirable emissions. In addition, engineers have learned that it is desirable for the needle valve to open slowly at the beginning of an injection event and to close abruptly to end the injection event. Therefore, the present invention utilizes at least one orifice member that is movably positioned in an injector body such that fluid flowing away from the needle valve member closing hydraulic surface flows through a relatively restricted flow path and fluid flowing toward the needle valve member flow through a relatively unrestricted flow path.
摘要翻译：工程师已经确定，前端速率形状喷射事件的能力可以产生许多优点，包括改进的喷射器性能和减少不期望的排放。此外，工程师们了解到，针阀在注射事件开始时缓慢打开，并突然关闭以结束注射事件。因此，本发明使用至少一个可移动地定位在喷射器主体中的孔口构件，使得从针阀构件闭合液压表面流出的流体流过相对受限制的流动路径，并且流向针阀构件的流体流过相对无限制的流路。

2. 发明授权

US06520151B2 Fuel injection system with common actuation device and engine using same 失效
公开(公告)号：US06520151B2
公开(公告)日：2003-02-18
申请号：US09974285
申请日：2001-10-10
申请人： Chetan J. Desai , Xinshuang Nan
发明人： Chetan J. Desai , Xinshuang Nan
IPC分类号： F02M4702
CPC分类号： F02M63/0005 , F02D41/3809 , F02M45/00 , F02M45/02 , F02M45/04 , F02M47/02 , F02M47/022 , F02M47/027 , F02M63/0225
摘要： The present invention relates to engines having common rail fuel injection systems. In traditional common rail fuel injection systems, each fuel injector utilized by the fuel system includes its own solenoid. These individual solenoids must cooperate to ensure that the proper amount of fuel is being injected from each injector at the proper time. Having individual solenoids requires a multiple number of moving electrical components. In contrast to the traditional common rail fuel injection system, the fuel injection system of the present invention includes fuel injectors that are controlled in operation by a common electronic actuator that is positioned remote from the fuel injectors. Therefore, the present invention reduces the number of moving electrical components in the fuel injection system by reducing the need for individual solenoids for each fuel injector.

3. 发明授权

US06412705B1 Hydraulically-actuated fuel injector having front end rate shaping capabilities and fuel injection system using same 有权
标题翻译：具有前端速率整形能力的液压致动燃料喷射器和使用其的燃料喷射系统
公开(公告)号：US06412705B1
公开(公告)日：2002-07-02
申请号：US09566714
申请日：2000-05-09
申请人： Chetan J. Desai , Xinshuang Nan
发明人： Chetan J. Desai , Xinshuang Nan
IPC分类号： F02M4702
CPC分类号： F02M45/066 , F02M57/025
摘要： A hydraulically actuated fuel injection system according to the present invention comprises at least one hydraulically actuated fuel injector that includes an injector body that defines a fuel pressurization chamber. A pumping element having a stepped top is movably mounted in a pumping bore defined by the injector body, wherein the pumping element defines at least one internal passageway. The pumping element is movable a distance between a first position and a second position. A spill passage defined by the injector body is open to the fuel pressurization chamber via the at least one internal passageway over a portion of the distance.
摘要翻译：根据本发明的液压致动燃料喷射系统包括至少一个液压致动燃料喷射器，其包括限定燃料加压室的喷射器主体。具有台阶顶部的泵送元件可移动地安装在由喷射器主体限定的泵送孔中，其中泵送元件限定至少一个内部通道。泵送元件可在第一位置和第二位置之间移动一定距离。由喷射器主体限定的溢流通道经由该距离的一部分上的至少一个内部通道对燃料加压室开放。

4. 发明授权

US06408821B1 Fuel injection system with common actuation device and engine using same 失效
标题翻译：具有通用致动装置的燃油喷射系统和使用其的发动机
公开(公告)号：US06408821B1
公开(公告)日：2002-06-25
申请号：US09740533
申请日：2000-12-19
申请人： Chetan J. Desai , Xinshuang Nan
发明人： Chetan J. Desai , Xinshuang Nan
IPC分类号： F02M4702
CPC分类号： F02M63/0005 , F02D41/3809 , F02M45/00 , F02M45/02 , F02M45/04 , F02M47/02 , F02M47/022 , F02M47/027 , F02M63/0225
摘要： The present invention relates to engines having common rail fuel injection systems. In traditional common rail fuel injection systems, each fuel injector utilized by the fuel system includes its own solenoid. These individual solenoids must cooperate to ensure that the proper amount of fuel is being injected from each injector at the proper time. It is believed in the art that a reduction in the number of moving or electrical components in the fuel injection system can improve robustness of the system. Therefore, the fuel injection system of the present invention includes fuel injectors that are controlled in operation by a common electronic actuator that is positioned remote from the fuel injectors.
摘要翻译：本发明涉及具有共轨燃料喷射系统的发动机。在传统的共轨燃料喷射系统中，由燃料系统使用的每个燃料喷射器包括其自己的螺线管。这些单独的螺线管必须配合以确保在适当的时间从每个喷射器喷射适量的燃料。在本领域中相信，燃料喷射系统中的移动或电气部件的数量的减少可以提高系统的鲁棒性。因此，本发明的燃料喷射系统包括通过远离燃料喷射器定位的公共电子致动器来操作的燃料喷射器。

5. 发明授权

US06467391B2 Hydraulic device with anti-stiction features 失效
公开(公告)号：US06467391B2
公开(公告)日：2002-10-22
申请号：US09740696
申请日：2000-12-19
申请人： Chetan J. Desai , Xinshuang Nan
发明人： Chetan J. Desai , Xinshuang Nan
IPC分类号： F15B1304
CPC分类号： F02M57/026 , F02M57/025 , F02M59/105 , F02M59/44 , F16J1/08
摘要： In hydraulically actuated fuel injectors that utilize lubricating oil as the actuation fluid, various components within the injector body must move relatively short distances at high rates of speed in a wetted oil environment. When the oil is at a relatively low temperature, its relatively high viscosity coupled with relatively small size of these components can cause stiction problems to occur. Stiction occurs where the moveable component comes in contact with the body when it rests against its stop. The highly viscous oil can tend to cause the component to resist breaking free of its stop surface such that the fuel injector may be inhibited in performing adequately, especially during cold start conditions. These potential stiction problems are reduced by including a raised surface feature on one or both of the component and body in order to reduce the potential contact surface area.

6. 发明申请

US20050023372A1 Variable control orifice member and fuel injector using same 有权
标题翻译：变量控制孔构件和使用其的燃油喷射器
公开(公告)号：US20050023372A1
公开(公告)日：2005-02-03
申请号：US10631291
申请日：2003-07-31
申请人： Norval Weimken , Xinshuang Nan , Ye Tian , Lifeng Wang , Jianyuan Yang , Ronald Shinogle , Chetan Desai
发明人： Norval Weimken , Xinshuang Nan , Ye Tian , Lifeng Wang , Jianyuan Yang , Ronald Shinogle , Chetan Desai
IPC分类号： F02M47/02 , F02M57/02 , F02M61/16 , F02M51/00 , F02M61/00
CPC分类号： F02M57/025 , F02M47/027 , F02M61/161
摘要： Engineers have determined that the ability to front end rate shape injection events can result in a number of advantages, including improved injector performance and a reduction in undesirable emissions. In addition, engineers have learned that it is desirable for the needle valve to open slowly at the beginning of an injection event and to close abruptly to end the injection event. Therefore, the present invention utilizes at least one orifice member that is movably positioned in an injector body such that fluid flowing away from the needle valve member closing hydraulic surface flows through a relatively restricted flow path and fluid flowing toward the needle valve member flow through a relatively unrestricted flow path.
摘要翻译：工程师已经确定，前端速度形状喷射事件的能力可以产生许多优点，包括改进的喷射器性能和减少不期望的排放。此外，工程师们了解到，针阀在注射事件开始时缓慢打开，并突然关闭以结束注射事件。因此，本发明使用至少一个可移动地定位在喷射器主体中的孔口构件，使得从针阀构件闭合液压表面流出的流体流过相对受限制的流动路径，并且流向针阀构件的流体流过相对无限制的流路。

7. 发明授权

US06412473B1 Rate shaped fluid driven piston assembly and fuel injector using same 有权
标题翻译：速率形流体驱动活塞组件和使用其的燃料喷射器
公开(公告)号：US06412473B1
公开(公告)日：2002-07-02
申请号：US09607164
申请日：2000-06-29
申请人： Xinshuang Nan , Ye Tian
发明人： Xinshuang Nan , Ye Tian
IPC分类号： F02M700
CPC分类号： F02M59/46 , F02M47/043 , F02M57/025 , F02M59/466 , F02M61/205 , F02M2200/502
摘要： A hydraulically actuated fuel injector includes an injector body that defines an actuation fluid passage, a low pressure area and a nozzle outlet. A piston having a hydraulic surface is positioned in the injector body and moveable a stroke distance between a retracted position and an advance position. At least one of the piston and injector body define a first cavity and a second cavity when the piston is located in an initial portion of its stroke distance. Before a first portion of the hydraulic surface is exposed to fluid pressure in the first cavity, and a second portion of the hydraulic surface is exposed to fluid pressure in the second cavity when the piston is in its initial portion of its stroke distance. A valve is positioned in the injector body and has an open position that fluidly connects the second cavity to the low pressure area when the piston is located in the initial portion of its stroke distance, and a closed position when the piston is located away from the initial portion of the stroke distance.
摘要翻译：液压致动燃料喷射器包括限定致动流体通道，低压区域和喷嘴出口的喷射器主体。具有液压表面的活塞定位在喷射器主体中并且能够在缩回位置和提前位置之间移动行程距离。当活塞位于其行程距离的初始部分中时，活塞和喷射器主体中的至少一个限定第一腔和第二腔。在液压表面的第一部分暴露于第一腔中的流体压力之前，并且当活塞处于其行程距离的初始部分时，液压表面的第二部分暴露于第二腔中的流体压力。阀门定位在喷射器主体中，并且具有打开位置，当活塞位于其行程距离的初始部分时，将第二腔体流体连接到低压区域，并且当活塞远离行程距离的初始部分。

8. 发明授权

US06647966B2 Common rail fuel injection system and fuel injector for same 有权
标题翻译：共轨燃油喷射系统和燃油喷射器相同
公开(公告)号：US06647966B2
公开(公告)日：2003-11-18
申请号：US09960772
申请日：2001-09-21
申请人： Ye Tian , Xinshuang Nan
发明人： Ye Tian , Xinshuang Nan
IPC分类号： F02M3704
CPC分类号： F02M47/027 , F02D41/3809 , F02M63/004 , F02M63/0042 , F02M63/0045 , F02M63/0225
摘要： A fuel injection system is provided which includes a source of high pressure fuel, a low pressure fuel reservoir, and at least one fuel injector which has an injector body that defines a nozzle chamber, a needle control chamber, a needle control vent, a fuel inlet, and a nozzle outlet. A high pressure line extends between the source of high pressure fuel and the fuel inlet. A low pressure line extends between the low pressure fuel reservoir and the needle control vent. A needle control valve is positioned in the injector body and includes a poppet valve member with a first position in which the needle control chamber is fluidly connected to the fuel inlet but closed to the needle control vent. The poppet valve also has a second position in which the needle control chamber is closed to the fuel inlet but open to the needle control vent. A needle valve is positioned in the injector body and includes a one piece needle valve member with a closing hydraulic surface exposed to fluid pressure in the needle control chamber, and an opening hydraulic surface exposed to fluid pressure in the nozzle chamber.
摘要翻译：提供一种燃料喷射系统，其包括高压燃料源，低压燃料储存器和至少一个燃料喷射器，其具有限定喷嘴室的喷射器主体，针控制室，针控制通风口，燃料入口和喷嘴出口。高压线路在高压燃料源和燃料入口之间延伸。低压线路在低压燃料储存器和针控制通气口之间延伸。针控制阀定位在注射器主体中并且包括具有第一位置的提升阀构件，在该第一位置中针控制室流体地连接到燃料入口但是关闭到针控制通风口。提升阀还具有第二位置，在该第二位置，针控制室关闭到燃料入口，但是通向针控制排气口。针阀定位在注射器主体中，并且包括单件针阀构件，其具有暴露于针控制室中的流体压力的闭合液压表面，以及暴露于喷嘴室中的流体压力的开口液压表面。

9. 发明授权

US07174881B2 Actuation valve for controlling fuel injector and compression release valve, and engine using same 失效
标题翻译：用于控制燃油喷射器和压缩释放阀的致动阀，以及使用其的发动机
公开(公告)号：US07174881B2
公开(公告)日：2007-02-13
申请号：US10017523
申请日：2001-12-07
申请人： Ye Tian , Scott Leman , Xinshuang Nan , Lifeng Wang , Jianyuan Yang
发明人： Ye Tian , Scott Leman , Xinshuang Nan , Lifeng Wang , Jianyuan Yang
IPC分类号： F02M37/04
CPC分类号： F02M59/105 , F01L9/02 , F01L13/065 , F02D13/04 , F02M47/043 , F02M57/025
摘要： The present invention relates to engines having multiple hydraulic devices. For instance a multi-cylinder diesel engine might include both an a fuel injector and an engine compression release brake. Traditionally, each of these hydraulic devices has been controlled by an individual actuator control valve. However, engineers have learned that decreasing the number of engine components can increase engine robustness. In addition, engineers have learned that de-coupling fluid pressure to the needle valve member hydraulic surface from fluid pressure lines to other injector components can result in greater control of the injector. Therefore, the present invention utilizes a single actuator control valve to control both hydraulic devices for an engine cylinder and to provide independent control of fluid pressure to the needle valve member closing hydraulic surface.
摘要翻译：本发明涉及具有多个液压装置的发动机。例如，多缸柴油发动机可以包括燃料喷射器和发动机压缩释放制动器。传统上，这些液压装置中的每一个都由单独的致动器控制阀控制。然而，工程师们了解到，减少发动机部件数量可以提高发动机的鲁棒性。此外，工程师们已经了解到，从流体压力管线将针阀构件液压表面的流体压力解耦到其它喷射器部件可以更好地控制喷射器。因此，本发明使用单个致动器控制阀来控制用于发动机气缸的两个液压装置，并且提供对针阀构件关闭液压表面的流体压力的独立控制。

10. 发明授权

US06899068B2 Hydraulic valve actuation system 有权
标题翻译：液压阀驱动系统
公开(公告)号：US06899068B2
公开(公告)日：2005-05-31
申请号：US10259599
申请日：2002-09-30
申请人： Xinshuang Nan , Sean Olen Cornell , Scott Alan Leman
发明人： Xinshuang Nan , Sean Olen Cornell , Scott Alan Leman
IPC分类号： F01L9/02
CPC分类号： F01L9/02 , F01L2800/00
摘要： An engine valve actuation system may include an actuation assembly having a body, a slidable piston, and first, second, and third chambers defined between the piston and the body. Low pressure and high pressure fluid sources may be included. A first fluid passage may connect the low pressure fluid source to the second chamber. A second fluid passage may connect the high pressure fluid source to the second chamber, and a third fluid passage may connect the high pressure fluid source to the third chamber. A control valve may be connected to the low pressure fluid source, to the high pressure fluid source, and to the first chamber. The control valve may be configured to move between a first position at which the high pressure fluid source is connected to the first chamber, and a second position at which the low pressure fluid source is connected to the first chamber.
摘要翻译：发动机气门致动系统可以包括具有主体，可滑动活塞以及限定在活塞和主体之间的第一，第二和第三室的致动组件。可以包括低压和高压流体源。第一流体通道可将低压流体源连接到第二室。第二流体通道可以将高压流体源连接到第二室，并且第三流体通道可将高压流体源连接到第三室。控制阀可以连接到低压流体源，高压流体源和第一室。控制阀可以构造成在高压流体源连接到第一室的第一位置和低压流体源连接到第一室之间的第二位置之间移动。

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