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1. 发明公开

EP0360278A2 Electronic controlled fuel supply system for high pressure injector 失效
标题翻译：系统在einerHochdruckeinspritzdüse的Steuerung der Kraftstoffzufuhr。
公开(公告)号：EP0360278A2
公开(公告)日：1990-03-28
申请号：EP89117549.9
申请日：1989-09-22
申请人： CUMMINS ENGINE COMPANY, INC.
发明人： Peters, Lester L. , Perr, Julius P. , Smith, Edward D.
IPC分类号： F02D41/40 , F02D41/30
CPC分类号： F02D7/007 , F02B1/04 , F02B3/06 , F02D7/002 , F02D41/40 , F02D2200/0602 , F02D2250/31 , F02M57/021 , F02M57/024 , Y02T10/44
摘要： An electronically controlled fuel supply system is provided for employing a plurality of fuel injectors which maximize SAC pressures under both low speed and high speed operating conditions and are capable of sustaining SAC pressures in excess of 30,000 psi. The fuel supply system of the present invention includes a gear pump which supplies pressure-modulated fuel to a fueling channel and to a timing channel and from there to a plurality of injectors. Fuel pressure regulator means and timing fluid pressure regulator means are provided in the fueling and timing channel, respectively. An electronic control unit receives information relating to engine operating conditions from a plurality of sensors and actuates the fuel pressure regulator means and the timing fluid pressure regulator means to adjust the pressure as required for the specific engine operating conditions. The timing fluid is delivered to the injectors by the present system at a pressure sufficient to sustain a hydraulic link within the injector of the length necessary to maintain high SAC pressures during injection. Several embodiments of a fuel supply system which achieves these objectives are disclosed. A mounting integral with the cylinder head for an electronically controlled injector fuel supply system is also provided.
摘要翻译：提供一种电子控制燃料供应系统，用于使用多个燃料喷射器，其在低速和高速运行条件下使SAC压力最大化，并且能够承受超过30,000psi的SAC压力。本发明的燃料供给系统包括齿轮泵，其将加压调节燃料供给到加油通道和定时通道，并且从那里到多个喷射器。燃料压力调节装置和定时流体压力调节装置分别设置在加油和定时通道中。电子控制单元从多个传感器接收与发动机操作条件有关的信息，并且启动燃料压力调节装置和定时流体压力调节装置，以根据特定的发动机运行条件来调节压力。正时流体由本系统以足以维持注射器内的液压连杆在注射期间维持高SAC压力所需的长度所需的压力被输送到喷射器。公开了实现这些目的的燃料供应系统的几个实施例。还提供了与用于电子控制的喷射器燃料供应系统的气缸盖一体的安装。

2. 发明公开

EP0607982A1 Infinitely variable hydromechanical timing control 失效
标题翻译： Stufenlose hydromechanische zeitliche Steuerung。
公开(公告)号：EP0607982A1
公开(公告)日：1994-07-27
申请号：EP94100840.1
申请日：1994-01-21
申请人： CUMMINS ENGINE COMPANY, INC.
发明人： Smith, Edward D. , Buchanan, David L. , Peters, Lester L. , Stroia, Bradlee J. , Lu, Helen F.
IPC分类号： F02D7/00 , F02M59/30
CPC分类号： F02D7/002 , F02D1/12 , F02D7/007 , F02M57/024
摘要： A fuel system for fuel injectors of an internal combustion engine is provided with a hydromechanical timing valve (7) having a valve body assembly with a barrel (18) and plunger (26) arrangement. The plunger (26) is displaceable within the barrel (18) under the counterbalancing forces of rail fuel pressure (load) (3) and one or more timing valve springs (28). The relative position of the barrel (18) and plunger (26) determines the effective size of the port (22b,22c) through which timing fluid can flow. In accordance a first embodiment, the plunger (26) has a tapered head which covers and uncovers ports (22b,22c) in the barrel to a greater or lesser extent, thereby creating a variable flow-through cross section. Alternatively, in accordance with other embodiments, the barrel has ports with slot-like orifices of progressively changing widths which coact with a metering groove (34) on the spool to define a variable flow cross section through which the timing fluid must pass. Optionally, for highway motor vehicle applications, to increase fuel economy, a delayed timing advance feature can be incorporated into the timing valve. More specifically, by a controlled leakage effect, the valve plunger (26) can be caused to shift in a direction causing timing to be advanced (timing fluid supply increased) only after a predetermined period of time has elapsed. This delayed timing advance can be produced, in accordance with the invention, via a second, internal plunger, or via a second, diaphragm-operated external plunger.
摘要翻译：该系统包括阀芯型液压机械正时阀，其具有带有筒体和柱塞装置的阀体组件。柱塞在轨道燃料压力（负载）和一个或多个定时阀弹簧的平衡力之下在筒内可移动。筒和柱塞的相对位置决定了正时流体可以流过的端口的有效尺寸。在一个实施例中，柱塞具有锥形头部，其大大或多或少地覆盖和暴露筒体中的端口，由此形成可变的流过横截面。或者，在其他实施例中，筒具有具有逐渐变化的宽度的狭缝状孔口的端口，其与柱塞上的计量槽共同定义可变流动横截面，正时流体必须通过该横截面通过。

3. 发明授权

EP0360278B1 Electronic controlled fuel supply system for high pressure injector 失效
标题翻译：系统，用于控制在高压喷射器的燃料供给。
公开(公告)号：EP0360278B1
公开(公告)日：1993-10-20
申请号：EP89117549.9
申请日：1989-09-22
申请人： CUMMINS ENGINE COMPANY, INC.
发明人： Peters, Lester L. , Perr, Julius P. , Smith, Edward D.
IPC分类号： F02D41/40 , F02D41/30
CPC分类号： F02D7/007 , F02B1/04 , F02B3/06 , F02D7/002 , F02D41/40 , F02D2200/0602 , F02D2250/31 , F02M57/021 , F02M57/024 , Y02T10/44

4. 发明授权

EP0607982B1 Infinitely variable hydromechanical timing control 失效
标题翻译：无级变速流体力学定时
公开(公告)号：EP0607982B1
公开(公告)日：1997-07-23
申请号：EP94100840.1
申请日：1994-01-21
申请人： CUMMINS ENGINE COMPANY, INC.
发明人： Smith, Edward D. , Buchanan, David L. , Peters, Lester L. , Stroia, Bradlee J. , Lu, Helen F.
IPC分类号： F02D7/00 , F02M59/30
CPC分类号： F02D7/002 , F02D1/12 , F02D7/007 , F02M57/024

5. 发明公开

EP0253483A2 An air fuel control, and a plunger and barrel assembly for a fuel system, either for an internal combustion engine 失效
标题翻译：空气 - 燃料控制和插槽载体Steurkolben用于内燃发动机的燃料系统。
公开(公告)号：EP0253483A2
公开(公告)日：1988-01-20
申请号：EP87304852.4
申请日：1987-06-02
申请人： Cummins Engine Company, Inc.
发明人： Bremmer, Robin J. , Baker, Roscoe A.
IPC分类号： F02D1/06 , F02D7/00
CPC分类号： F02D1/065 , F02D7/007 , F02M59/205
摘要： A tamper-proof air fuel control for a compression ignition type i.c. engine is provided wherein fuel is supplied to cylinders in response to the pressure of air in the intake manifold. A pair of oppositely biased springs (40 and 42) controls movement of a stem valve (30) in response to intake manifold air pressure exerted on a flexible diaphragm (28) located between the springs (40 and 42). The stem valve (30) includes a plunger (32) within a barrel (31) in the air fuel control housing (20) in the engine fuel pump. The cross-sectional profiles of the plunger (32) and barrel (31) are designed to meter precisely a controlled amount of fuel to the engine fuel supply system as the intake air pressure increases and to reduce this metered flow as the intake air pressure decreases. A class fit between the barrel (31) and plunger (32) wherein the clearance must not exceed 1905 × 10⁻⁹ metres to 3175 × 10⁻⁹ metres (0.000075 to 0.000125 inches) and pressure regulating means in the plunger (32) substantially eliminate fuel leakage from the barrel (31). Internal venting means are provided to direct any minimal amount of fuel which might leak to the engine crankcase.
摘要翻译：对于压缩点火式I.C.一种防干扰空气燃料控制发动机设置worin燃料供给到缸响应于空气的进气歧管中的压力。一对相对地偏置弹簧（40和42）的控制，响应于施加在位于所述弹簧（40和42）之间的柔性隔膜（28）进气歧管空气压力的杆阀（30）的运动。阀杆（30）包括在发动机燃料泵的空气燃料控制壳体（20）筒（31）内的柱塞（32）。所述柱塞（32）和筒（31）的横截面轮廓被设计为米精确受控的燃料量给发动机的燃料供给系统，进气压力的增加而减少这种计量流量作为进气压力降低，筒（31）和柱塞（32）worin的间隙之间的类配合必须不超过1905×10 < - > <9>米至3175×10 < - > <9>米（0.000075至0.000125英寸）和压力调节装置在所述柱塞（32）基本上消除从筒体（31）的燃料泄漏。都提供了内部通风装置直接可能泄漏到发动机曲轴箱燃料的任何最小量。

6. 发明公开

EP0360278A3 Electronic controlled fuel supply system for high pressure injector 失效
标题翻译：用于高压喷射器的电子控制燃料供应系统
公开(公告)号：EP0360278A3
公开(公告)日：1991-12-27
申请号：EP89117549.9
申请日：1989-09-22
申请人： CUMMINS ENGINE COMPANY, INC.
发明人： Peters, Lester L. , Perr, Julius P. , Smith, Edward D.
IPC分类号： F02D41/40 , F02D41/30
CPC分类号： F02D7/007 , F02B1/04 , F02B3/06 , F02D7/002 , F02D41/40 , F02D2200/0602 , F02D2250/31 , F02M57/021 , F02M57/024 , Y02T10/44
摘要： An electronically controlled fuel supply system is provided for employing a plurality of fuel injectors which maximize SAC pressures under both low speed and high speed operating conditions and are capable of sustaining SAC pressures in excess of 30,000 psi. The fuel supply system of the present invention includes a gear pump which supplies pressure-modulated fuel to a fueling channel and to a timing channel and from there to a plurality of injectors. Fuel pressure regulator means and timing fluid pressure regulator means are provided in the fueling and timing channel, respectively. An electronic control unit receives information relating to engine operating conditions from a plurality of sensors and actuates the fuel pressure regulator means and the timing fluid pressure regulator means to adjust the pressure as required for the specific engine operating conditions. The timing fluid is delivered to the injectors by the present system at a pressure sufficient to sustain a hydraulic link within the injector of the length necessary to maintain high SAC pressures during injection. Several embodiments of a fuel supply system which achieves these objectives are disclosed. A mounting integral with the cylinder head for an electronically controlled injector fuel supply system is also provided.

7. 发明公开

EP0253483A3 An air fuel control, and a plunger and barrel assembly for a fuel system, either for an internal combustion engine 失效
标题翻译：一个燃油系统，一个燃油系统，一个内燃机发动机和一个排气管和一个组合
公开(公告)号：EP0253483A3
公开(公告)日：1989-04-12
申请号：EP87304852.4
申请日：1987-06-02
申请人： Cummins Engine Company, Inc.
发明人： Bremmer, Robin J. , Baker, Roscoe A.
IPC分类号： F02D1/06 , F02D7/00
CPC分类号： F02D1/065 , F02D7/007 , F02M59/205
摘要： A tamper-proof air fuel control for a compression ignition type i.c. engine is provided wherein fuel is supplied to cylinders in response to the pressure of air in the intake manifold. A pair of oppositely biased springs (40 and 42) controls movement of a stem valve (30) in response to intake manifold air pressure exerted on a flexible diaphragm (28) located between the springs (40 and 42). The stem valve (30) includes a plunger (32) within a barrel (31) in the air fuel control housing (20) in the engine fuel pump. The cross-sectional profiles of the plunger (32) and barrel (31) are designed to meter precisely a controlled amount of fuel to the engine fuel supply system as the intake air pressure increases and to reduce this metered flow as the intake air pressure decreases. A class fit between the barrel (31) and plunger (32) wherein the clearance must not exceed 1905 × 10⁻⁹ metres to 3175 × 10⁻⁹ metres (0.000075 to 0.000125 inches) and pressure regulating means in the plunger (32) substantially eliminate fuel leakage from the barrel (31). Internal venting means are provided to direct any minimal amount of fuel which might leak to the engine crankcase.
摘要翻译：用于压缩点火式直流电的防窜改空气燃料控制发动机，其中响应于进气歧管中的空气的压力将燃料供应到气缸。一对相对偏压的弹簧（40和42）响应于施加在位于弹簧（40和42）之间的柔性隔膜（28）上的进气歧管空气压力来控制阀杆（30）的运动。杆阀（30）在发动机燃料泵中的空气燃料控制壳体（20）内的筒体（31）内包括柱塞（32）。柱塞（32）和筒体（31）的横截面轮廓被设计成当进气压力增加时精确地计量到发动机燃料供应系统的受控量的燃料，并且随着进气压力降低而减小该计量流量。筒体（31）和柱塞（32）之间的配合，其中间隙不得超过1905×10 -9米至3175×10 -9米（0.000075至0.000125英寸），并且压力调节柱塞（32）中的装置基本上消除了来自筒体（31）的燃料泄漏。提供内部排气装置以引导可能泄漏到发动机曲轴箱的任何最小量的燃料。

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