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公开(公告)号：US5607106A
公开(公告)日：1997-03-04
申请号：US288047
申请日：1994-08-10
申请人： Joseph C. Bentz , John T. Carroll, III , Lester L. Peters , Thomas M. Yonushonis , Jeffrey L. Campbell
发明人： Joseph C. Bentz , John T. Carroll, III , Lester L. Peters , Thomas M. Yonushonis , Jeffrey L. Campbell
CPC分类号： F02M61/166 , F02M57/024 , Y10S239/19
摘要： A low inertia, wear-resistant needle valve assembly is provided for an internal combustion engine closed nozzle unit fuel injector. The needle valve assembly includes a needle and spring retainer subassembly made from an advanced structural ceramic, such as silicon nitride. A valve seat subassembly in the injector cup is made from a combination of metal and ceramic. The assembly materials and configuration provide maximum control over the efficiency of the injection event so that the fuel injection event can be terminated quickly, thereby allowing more effective control over exhaust emissions.
摘要翻译： 为内燃机闭合喷嘴单元燃料喷射器提供低惯性耐磨针阀组件。 针阀组件包括由诸如氮化硅的先进结构陶瓷制成的针和弹簧保持器子组件。 注射器杯中的阀座子组件由金属和陶瓷的组合制成。 组装材料和配置可以最大程度地控制喷射事件的效率，从而可以快速终止燃油喷射事件，从而更有效地控制废气排放。
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公开(公告)号：US5409165A
公开(公告)日：1995-04-25
申请号：US213453
申请日：1994-03-14
申请人： John T. Carroll, III , Katsuhiro Shinosawa , Lester L. Peters , Jeffrey L. Campbell , Joseph C. Bentz
发明人： John T. Carroll, III , Katsuhiro Shinosawa , Lester L. Peters , Jeffrey L. Campbell , Joseph C. Bentz
CPC分类号： F02M59/445 , F02M57/021 , F02M61/166 , F02M61/168 , F02M61/18 , F02M2200/8061 , Y10S239/19 , Y10T29/49307 , Y10T403/21 , Y10T403/55 , Y10T403/7039
摘要： A highly wear-resistant plunger assembly for a fuel injector, particularly an open nozzle fuel injector, is provided. The wear-resistant plunger assembly of the present invention includes components formed from wear-resistant materials specifically including, but not limited to, ceramics and metals capable of withstanding the high temperatures and frictional forces produced by prolonged motoring and other potentially adverse engine operating conditions. Different portions of the plunger assembly may be formed from different kinds of wear-resistant materials.
摘要翻译： 提供了一种用于燃料喷射器的高耐磨柱塞组件，特别是开放喷嘴燃料喷射器。 本发明的耐磨柱塞组件包括由耐磨材料形成的部件，具体包括但不限于能够耐受由长时间的电动和其它可能不利的发动机操作条件产生的高温和摩擦力的陶瓷和金属。 柱塞组件的不同部分可以由不同种类的耐磨材料形成。
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公开(公告)号：US6149073A
公开(公告)日：2000-11-21
申请号：US21296
申请日：1998-02-10
申请人： Dan K. Hickey , J. Victor Perr , David M. Rix , Joseph C. Bentz , Thomas M. Yonushonis , Malcolm G. Naylor , Katsuhiro Shinosawa , John T. Carroll, III
发明人： Dan K. Hickey , J. Victor Perr , David M. Rix , Joseph C. Bentz , Thomas M. Yonushonis , Malcolm G. Naylor , Katsuhiro Shinosawa , John T. Carroll, III
IPC分类号： F02M41/04 , F02M41/08 , F02M41/12 , F02M41/14 , F02M57/02 , F02M59/06 , F02M59/26 , F02M59/44 , F02M63/02 , F04B53/02 , F04B53/14 , F02M47/02 , F02M45/50
CPC分类号： F02M57/023 , F02M41/042 , F02M41/08 , F02M41/121 , F02M41/1405 , F02M57/024 , F02M59/06 , F02M59/445 , F02M63/0225 , F04B53/144 , F05C2203/0869 , F05C2203/0895 , F05C2251/042 , F05C2251/10
摘要： A wear and scuff-resistant plunger for use in high pressure fuel system components in internal combustion engines is provided. The plunger, which is formed of a high thermal expansion, high hardness ceramic with a thermal expansion coefficient preferably greater than 6.times.10.sup.-6 /.degree. C. and a hardness preferably greater than 800 Kg/mM.sup.2, maintains a desired optimum minimal diametral clearance while avoiding excessive fuel leakage and efficient plunger function without scuffing or sticking under the high axial, side and pressure loads and variable quality fuels encountered in the fuel system operating environment. Preferred high thermal expansion, high hardness ceramics are zirconia, alumina-zirconia and alumina.
摘要翻译： 提供了一种用于内燃机中的高压燃料系统部件的耐磨和耐磨柱塞。 由热膨胀系数优选大于6×10 -6 /℃，硬度优选大于800Kg / mM 2的高热膨胀高硬度陶瓷形成的柱塞在避免时保持期望的最佳最小直径间隙 过度的燃料泄漏和高效的柱塞功能，在燃料系统运行环境中遇到的高轴向，侧压和高负荷以及可变质量的燃料下不会磨损或粘附。 优选的高热膨胀，高硬度陶瓷是氧化锆，氧化铝 - 氧化锆和氧化铝。
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公开(公告)号：US5899383A
公开(公告)日：1999-05-04
申请号：US803511
申请日：1997-02-20
申请人： Dan K. Hickey , J. Victor Perr , David M. Rix , Joseph C. Bentz , Thomas M. Yonushonis , Malcolm G. Naylor , Katsuhiro Shinosawa , John T. Carroll, III
发明人： Dan K. Hickey , J. Victor Perr , David M. Rix , Joseph C. Bentz , Thomas M. Yonushonis , Malcolm G. Naylor , Katsuhiro Shinosawa , John T. Carroll, III
CPC分类号： F02M59/445 , F02M57/023
摘要： A wear and scuff-resistant timing plunger for a timing assembly in a unit fuel injector for an internal combustion engine is provided. The timing plunger is formed of a high thermal expansion ceramic with a thermal expansion coefficient greater than 6.times.10.sup.-6 /.degree. C. and a hardness greater than 800 Kg/mm.sup.2, which maintains a desired diametral clearance and efficient plunger function without scuffing or sticking under the axial, tangential and pressure loads encountered in the fuel injector operating environment. Preferred high thermal expansion ceramics are zirconia, alumina-zirconia and alumina.
摘要翻译： 提供了一种用于内燃机单元燃料喷射器中的定时组件的耐磨和抗磨时序柱塞。 定时柱塞由热膨胀系数大于6×10 -6 /℃，硬度大于800Kg / mm2的高热膨胀陶瓷形成，其保持所需的直径间隙和有效的柱塞功能，而不会磨损或粘附 在燃料喷射器操作环境中遇到的轴向，切向和压力负载。 优选的高热膨胀陶瓷是氧化锆，氧化铝 - 氧化锆和氧化铝。
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公开(公告)号：US5410995A
公开(公告)日：1995-05-02
申请号：US228342
申请日：1994-04-15
CPC分类号： F01L1/143 , F01L1/16 , F01L1/26 , F01L2001/187 , F02B3/06 , F02F1/4214 , F02F2001/247 , Y10T74/20882
摘要： In accordance with preferred embodiments of the invention, a disc-shaped contact pad of ceramic material is disposed within a recess formed in the top surface of a metal valve crosshead. The pad is held in the recess by a retainer that clips onto the crosshead. The retainer is designed to maintain only a light pressure on only a narrow shoulder of the pad to keep it seated, and does not, itself, experience any dynamic loading. Furthermore, by the provision of a circumferential clearance between the pad and both the wall of the crosshead recess and the retainer, the need for precision machining of the ceramic material can be avoided. Additionally, a reduction of frictional sliding forces imposed on the crosshead, and in turn upon the valves, by the rocker lever is achieved by the ceramic pad, so that resultant frictional side loading is not imposed on adjacent valve components to a significant extent.
摘要翻译： 根据本发明的优选实施例，陶瓷材料的盘形接触垫设置在形成在金属阀十字头的顶表面中的凹槽内。 垫通过夹在十字头上的保持器保持在凹槽中。 保持器被设计成仅在垫的狭窄肩部上保持轻微的压力，以保持其就位，并且本身不经历任何动态负载。 此外，通过在垫与十字头凹槽和保持器的两个壁之间设置圆周间隙，可以避免对陶瓷材料进行精密加工的需要。 此外，通过陶瓷垫来实现施加在十字头上的摩擦滑动力，并且通过摇杆杠杆减小，从而在相当的阀部件上不会产生相当大的摩擦副载荷。
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公开(公告)号：US5279211A
公开(公告)日：1994-01-18
申请号：US872751
申请日：1992-04-24
CPC分类号： F02F7/0087 , F01L13/065 , F16B21/183 , F01L2101/02 , F05C2201/021 , F05C2203/0895 , F05C2251/042 , F16B2001/0078 , F16D2125/06 , Y10T403/7039 , Y10T403/7047
摘要： A ceramic-metal composite structure which minimizes tensile ceramic loads and accommodates differences in thermal expansion characteristics between a metal member and a ceramic member without reliance on precise feature control for either member. The composite includes a mechanical retainer which allows a loose fitting relationship between the metal and ceramic members. The ceramic member is secured within a receiving bore in the metal member by the retainer in a manner which eliminates the need for precise machining of the ceramic and metal members. The metal member may be configured to accept either an internal or an external mechanical retainer element. The composite ceramic-metal structure of the present invention finds particular utility in forming a durable wear-resistant interface in internal combustion engine actuator or actuating components, such as compression brake master pistons.
摘要翻译： 一种陶瓷 - 金属复合结构，其最小化拉伸陶瓷载荷并且适应金属构件（11）和陶瓷构件（12）之间的热膨胀特性的差异，而不依赖于任一构件的精确特征控制。 复合材料包括允许金属和陶瓷构件之间松动配合关系的机械保持器（20）。 陶瓷构件通过保持器固定在金属构件的接收孔内，其方式不需要精确地加工任一构件。 金属构件可以构造成接受内部（20,20a，20b，20c）或外部（40,40a）机械保持器元件。 复合陶瓷 - 金属结构在内燃机致动器或致动部件（例如压缩制动器活塞）中形成耐用的耐磨接口具有特别的用途。
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公开(公告)号：US5435234A
公开(公告)日：1995-07-25
申请号：US143111
申请日：1993-10-29
CPC分类号： F02F7/0087 , F01L13/065 , F16B21/183 , F01L2101/02 , F05C2201/021 , F05C2203/0895 , F05C2251/042 , F16B2001/0078 , F16D2125/06 , Y10T403/7039 , Y10T403/7047
摘要： A ceramic-metal composite structure which minimizes tensile ceramic loads and accommodates differences in thermal expansion characteristics between a metal member and a ceramic member without reliance on precise feature control for either member. The composite includes a mechanical retainer which allows a loose fitting relationship between the metal and ceramic members. The ceramic member is secured within a receiving bore in the metal member by the retainer in a manner which eliminates the need for precise machining of the ceramic and metal members. The metal member may be configured to accept either an internal or an external mechanical retainer element. The composite ceramic-metal structure of the present invention finds particular utility in forming a durable wear-resistant interface in internal combustion engine actuator or actuating components, such as compression brake master pistons.
摘要翻译： 陶瓷 - 金属复合结构，其使拉伸陶瓷载荷最小化，并适应金属构件和陶瓷构件之间的热膨胀特性的差异，而不依赖于任一构件的精确特征控制。 复合材料包括允许金属和陶瓷构件之间的松散配合关系的机械保持器。 陶瓷构件通过保持器固定在金属构件的接收孔内，以消除对陶瓷和金属构件的精确加工的需要。 金属构件可以构造成接受内部或外部机械保持器元件。 本发明的复合陶瓷 - 金属结构在内燃机致动器或诸如压缩制动器主活塞的致动部件中形成耐用的耐磨接口具有特别的用途。
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公开(公告)号：US06439202B1
公开(公告)日：2002-08-27
申请号：US09986481
申请日：2001-11-08
IPC分类号： F02M3704
CPC分类号： F02D41/402 , F02D41/3836 , F02D2250/31 , F02M45/00 , F02M45/02 , F02M45/04 , F02M45/12 , F02M47/027 , F02M57/02 , F02M57/023 , F02M59/366 , F02M63/0005 , F02M63/0225 , Y02T10/44
摘要： An improved fuel injection system is provided which incorporates a common rail and a plurality of unit injectors which function together to efficiently produce various injection rate shapes and different combinations of discreet and blended pilot, main, post and after treatment fuel injection events during a single injection. The fuel injection system effectively permits flexible, responsively timed, square shaped, discreet low to mid pressure level injections utilizing the fuel pressure of the common rail while also allowing the unit injector portion to function independently to produce flexible and responsively timed and pressure controlled, triangular shaped high pressure fuel injection events and to recover excess energy. In one embodiment, a separate common rail pump is avoided by utilizing the unit injector plunger to replace fuel into the common rail which was previously injected.
摘要翻译： 提供了一种改进的燃料喷射系统，其包括共轨和多个单元喷射器，其在一次喷射期间一起起作用以有效地产生各种注射速率形状和不同组合的谨慎和混合的先导，主，后处理和后处理燃料喷射事件 。 燃油喷射系统利用共轨的燃料压力有效地允许灵活的响应时间，正方形的小型至中等压力水平喷射，同时还允许单元喷射器部分独立地起作用以产生柔性和响应性定时和压力控制的三角形 形成高压燃油喷射事件并回收多余的能量。 在一个实施例中，通过利用单元喷射器柱塞将燃料替换为预先注入的共轨来避免单独的共轨泵。
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公开(公告)号：US06557779B2
公开(公告)日：2003-05-06
申请号：US09796823
申请日：2001-03-02
IPC分类号： F02M4116
CPC分类号： F02M47/027 , F02M45/04 , F02M45/086 , F02M45/12 , F02M63/0017 , F02M63/0064 , F02M2200/21 , F02M2547/003
摘要： An improved closed nozzle injector assembly for injecting high pressure fuel into the combustion chamber of an engine is provided which includes a first needle valve element associated with a first set of injector orifices, a first needle valve control device for controlling the opening and closing of the first needle valve, a second needle valve associated with a second set of injector orifices and a second needle valve control device for controlling the opening and closing of the second needle valve. Each needle valve control device includes a control volume positioned at one end of the respective needle valve, a control volume charge circuit for supplying high pressure fuel to the respective control volume and the respective injection control valve for controlling the flow of high pressure fuel from the respective control volume to a low pressure drain thereby controlling the movement of the respective needle valve. Using a dedicated control volume and injection control valve for each needle valve element permits effective control over the duration of pilot and post fuel injection events while also providing variable rate shaping capability for optimized emissions and fuel economy. The present dual needle valve element injector includes various components such as biasing springs which are positioned and interconnected to other components in a manner which creates a simple, compact fuel injector package providing independent control of two sets of spray orifices in one injector.
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公开(公告)号：US5765755A
公开(公告)日：1998-06-16
申请号：US787963
申请日：1997-01-23
申请人： Lester L. Peters , Julius P. Perr , A. S. Ghuman , Benjamin M. Yen , Chad L. Buchanan , Robert Samuel , Kevin L. Vogt , John T. Carroll, III , James E. Denton , David E. Schisler
发明人： Lester L. Peters , Julius P. Perr , A. S. Ghuman , Benjamin M. Yen , Chad L. Buchanan , Robert Samuel , Kevin L. Vogt , John T. Carroll, III , James E. Denton , David E. Schisler
CPC分类号： F02M61/18 , F02M45/10 , F02M61/042 , F02M61/168
摘要： An injection rate shaping nozzle assembly for a fuel injector is provided which includes a closed nozzle valve element and a rate shaping control device including an injection spill circuit for spilling a portion of the fuel to be injected to produce a predetermined time varying change in the flow rate of fuel injected into a combustion chamber. The spill circuit includes a spill passage integrally formed in the nozzle valve element. The rate shaping control device may include a spill accelerating chamber in formed in the nozzle valve element for creating a rapid increase in the spill flow rate. A spill circuit purge device is provided to remove fuel from the spill circuit and accelerating chamber between each of the injection events thereby ensuring an unimpeded, effective spill fuel flow during the next spill event. The purge device includes a purge passage formed of a predetermined size for restricting the flow of purge gas to ensure sufficient fuel removal from the injection spill circuit while avoiding excessive purge gas flow. The purge passage may include an annular clearance gap formed between the nozzle valve element and the nozzle housing wall, or alternatively, may include an orifice passage formed in the inner portion of the nozzle valve element. An improved method for forming a nozzle valve element having an axial center passage is also disclosed.
摘要翻译： 提供了一种用于燃料喷射器的喷射率成形喷嘴组件，其包括封闭的喷嘴阀元件和速率整形控制装置，该速率整形控制装置包括用于溢出待喷射的燃料的一部分以产生流量的预定时变变化的喷射泄漏电路 喷入燃烧室的燃料的速率。 泄漏回路包括一体形成在喷嘴阀元件中的溢流通路。 速率整形控制装置可以包括形成在喷嘴阀元件中的溢流加速室，用于产生溢流量的快速增加。 提供溢流回路吹扫装置以在每次喷射事件之间从泄漏回路和加速室中除去燃料，从而确保在下一个溢出事件期间不受阻碍地有效地溢出燃料流。 净化装置包括由预定尺寸形成的吹扫通道，用于限制净化气体的流动，以确保足够的燃料从喷射泄漏电路中移除，同时避免过多的吹扫气体流动。 净化通道可以包括形成在喷嘴阀元件和喷嘴壳体壁之间的环形间隙，或者可以包括形成在喷嘴阀元件的内部中的孔口通道。 还公开了一种用于形成具有轴向中心通道的喷嘴阀元件的改进方法。
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