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    • 3. 发明申请
    • PRESSURE REGULATOR FOR A HIGH-PRESSURE RAIL OF A FUEL INJECTION SYSTEM
    • US20170350355A1
    • 2017-12-07
    • US15538834
    • 2015-12-22
    • Robert Bosch GmbH
    • Lionel Bruyere
    • F02M37/00F02M63/02
    • F02M37/0052F02M61/1873F02M63/0052F02M63/0077F02M63/023F02M63/025G05D16/202
    • The invention relates to a pressure regulator for a high-pressure ramp of a system for injecting fuel into an internal combustion engine, comprising a solenoid valve element (10) which receives an electromagnet (40). The electromagnet controls a needle (20) that closes a valve seat (30) which is connected to a high-pressure inlet and opens into a discharge chamber (13), said discharge chamber communicating with a liquid recirculation system (5) by means of outlet openings (14). The rear face (12) of the solenoid valve element (10) receives a coil (40) which controls the opening process of an armature (41) that is rigidly connected to the needle (20) and is subject to a closing return spring (25). The discharge chamber (13) is located on the front face (11) of the solenoid valve element (10) on the axis (XX) of the needle (20), and the discharge chamber surrounds the needle. A cavity (15) passes through the discharge chamber, said cavity receiving an inlet valve element (50), and a bore (51) which opens into the valve seat (30) passes axially through the inlet valve element. The discharge chamber (13) through which the needle (20) passes axially and the outlet openings (14) which are connected to the liquid recirculation system open transversally into a wall (131) in the discharge chamber (13) in below the upper part (132) of the chamber. The regulator is characterized that the regulator comprises an annular expansion (70) of the discharge chamber (13) below the outlet openings (14) along the extension of a conical surface (31), which forms the valve seat (30) and an annular dead volume (70), above the surface (54) of the valve element (50), which forms the base of the discharge chamber (13) and has the valve seat (30) in the center of the valve element.
    • 7. 发明授权
    • Method for the open-loop control and closed-loop control of an internal combustion engine
    • 一种用于内燃机的开环控制和闭环控制的方法
    • US09328689B2
    • 2016-05-03
    • US13503570
    • 2010-10-19
    • Armin Dölker
    • Armin Dölker
    • F02D41/38F02D41/22F02D41/02F02M63/02F02D41/14F02D41/20
    • F02D41/3863F02D41/1401F02D41/222F02D41/3854F02D2041/1411F02D2041/2027F02D2041/223F02D2041/227F02D2250/31F02M63/025
    • The invention relates to a method for the open-loop control and the closed-loop control of an internal combustion engine (1), the rail pressure (pCR) being controlled in the normal operating state in a closed loop control mode via an intake throttle (4) on the lower pressure side as the first pressure control member in a rail pressure control loop and at the same time a rail pressure disturbance variable being applied to the rail pressure (pCR) via a pressure control valve (12) on the high pressure side as the second pressure control member. For this purpose, a pressure control valve volume flow (VDRV) is redirected from the rail (6) to a fuel tank (2) via the pressure control valve (12) on the high pressure side, and an emergency operation mode is activated once a defective rail pressure sensor (9) is detected, in which emergency operation the pressure control valve (12) on the high pressure side and the intake throttle (4) on the low pressure side are actuated depending on the same set point value.
    • 本发明涉及一种用于内燃机(1)的开环控制和闭环控制的方法,所述轨压(pCR)在闭环控制模式中通过进气节气门被控制在正常运行状态 (4)作为轨道压力控制回路中的第一压力控制构件的低压侧,同时通过高压侧的压力控制阀(12)将轨道压力干扰变量施加到轨道压力(pCR) 压力侧作为第二压力控制构件。 为此,压力控制阀体积流量(VDRV)通过高压侧的压力控制阀(12)从轨道(6)重新定向到燃料箱(2),并且紧急操作模式被激活一次 检测到有缺陷的导轨压力传感器(9),其中根据相同的设定点值来启动高压侧的压力控制阀(12)和低压侧的进气节流阀(4)的紧急操作。
    • 8. 发明申请
    • Pressure Control Valve
    • 压力控制阀
    • US20150152827A1
    • 2015-06-04
    • US14406245
    • 2013-05-07
    • Robert Bosch GmbH
    • Pierre-Marie Rochas
    • F02M63/00
    • F02M63/0073F02M63/0017F02M63/0033F02M63/025F02M2200/07
    • A pressure control valve for a high-pressure accumulator of an injection device of an internal combustion engine, includes a magnetic actuator. The magnetic actuator has a magnetic core with contacting pins and a magnetic armature with an armature plate. The contacting pins pass through feedthroughs formed in the armature plate. The armature plate is hydraulically connected by a pressure equalization channel to a valve chamber connected to low pressure. The pressure equalization channel has an opening on the magnetic core end face which opens into the armature space. At least one of the feedthroughs forms a passage for the fuel through the armature plate for the pressure equalization. A residual air gap disk is arranged between the magnetic core and the armature plate. The residual air gap disk forms an additional feedthrough with a radial extension that extends in the direction of the opening.
    • 一种用于内燃机的注射装置的高压蓄能器的压力控制阀,包括磁性致动器。 磁致动器具有带有接触销的磁芯和具有电枢板的磁性衔铁。 接触销通过形成在衔铁板中的馈通。 电枢板通过压力平衡通道液压连接到连接到低压的阀室。 压力平衡通道在通向电枢空间的磁芯端面上具有开口。 馈通中的至少一个形成燃料通过用于压力平衡的衔铁板的通道。 在磁芯和衔铁板之间设置有残留气隙盘。 剩余的气隙盘形成了沿着开口方向延伸的径向延伸部分的附加馈通。
    • 9. 发明申请
    • DIAGNOSING FAULT IN COMMON RAIL FUEL SYSTEM
    • 在通用燃油系统中诊断故障
    • US20150106040A1
    • 2015-04-16
    • US14055271
    • 2013-10-16
    • Caterpillar Inc.
    • Nandagopal MethilDaniel R. Puckett
    • F02M65/00
    • F02D41/221F02D41/1401F02D41/1477F02D41/3082F02D41/3854F02D41/3863F02D2041/1409F02D2041/142F02D2041/225F02M55/025F02M63/005F02M63/0225F02M63/025F02M65/006
    • A method of diagnosing a fault in a common rail fuel system having a proportional-integral-derivative (PID) controller includes determining a first integral output corresponding to a first fuel flow condition and a first rail pressure setting. The method includes comparing the first integral output with a threshold integral output and determining a second integral output corresponding to a second fuel flow condition and the first rail pressure setting, when the first integral output is greater than the threshold integral output. The method includes determining a third integral output corresponding to the first fuel flow condition and a second rail pressure setting, when the first integral output is greater than the threshold integral output. The method includes identifying a failure in at least one of a flow control valve arrangement and a pressure relief valve of the common rail fuel system based on the first, second, and the third integral outputs.
    • 一种用于诊断具有比例积分微分(PID)控制器的共轨燃料系统中的故障的方法,包括确定与第一燃料流量状况和第一轨道压力设定相对应的第一积分输出。 该方法包括:当第一积分输出大于阈值积分输出时,将第一积分输出与阈值积分输出进行比较,并确定对应于第二燃料流量条件和第一轨道压力设定的第二积分输出。 该方法包括当第一积分输出大于阈值积分输出时,确定对应于第一燃料流量状况的第三积分输出和第二轨道压力设置。 该方法包括基于第一,第二和第三积分输出识别共轨燃料系统的流量控制阀装置和压力释放阀中的至少一个的故障。