公开(公告)号：EP0384882A3

公开(公告)日：1991-04-03

申请号：EP90630054.6

申请日：1990-02-23

申请人： AIL CORPORATION

发明人： Brisbon, Eric S. ,  DiCarlo, Jeffrey P. ,  Cavanaugh, John B. ,  Karlson, Ross S.

IPC分类号： F02M47/02 ,  F02M45/00

CPC分类号： F02M57/026 ,  F02M45/00 ,  F02M47/02 ,  F02M57/025 ,  F02M59/105 ,  F02M59/466

摘要： Accumulator injector comprising a needle valve (30), an accumulator chamber and an amplifier chamber (64) in communication with the source of pressurized fuel, the end (74) of the valve (30) being subjected to the pressure in the amplifier chamber (64). An amplifier piston (70') is provided for boosting the pressure in in the amplifier chamber (64) and in the accumulator chamber. A duct (80') extends from a valve assembly (82) along side of and spaced from the amplifier cylinder (72) and communicates with the cylinder (72) by means of a smaller lower port (106) and a larger upper port (108). By restricting the rate of movement of the amplifier piston (70') upwardly, the pressure in the amplifier chamber (64) and hence in the accumulator chamber is relieved at a slower rate, hence changing the rate of opening of the needle valve (30) and the rate of fuel injection. The initial fuel flow from the end chamber (116) through the small port (106) produces a pilot injection. The injection rate is controlled by restricting the pressure decay in the amplifier chamber (64).

公开(公告)号：EP0239523A3

公开(公告)日：1988-02-03

申请号：EP87630038

申请日：1987-03-25

申请人： AIL CORPORATION

发明人： Brisbon, Eric S. ,  Krosney, Mark

IPC分类号： F02D01/10 ,  F02D01/08 ,  F02D41/38

CPC分类号： F02D41/407 ,  F02D1/08 ,  F02D1/10 ,  Y02T10/44

摘要： In a fuel injection system having a stepper motor (40) positioning the pump rack (32A) in the fuel injection pump to control the end of injection, a preloaded, compliant linkage (52,54,56) is interposed between the stepper motor output pinion gear (48) and the pump rack (32A) to prevent a phase shift between the actual and the desired stepper motor position. The preload of the linkage (52,54,56) is set at greater than the normal operating load and less than the stepper motor output. The linkage includes a rack member (52) that is urged by a spring-loaded mechanism (76) against the output pinion (48) of the stepper motor (40) to maintain tooth engagement, and a clevis member (56) that is pivoted to allow the rack member to move away from the pinion in the event of a pump rack load of extremely high (tooth-damaging) magnitude. A closed throttle position is assured by a spring (99) urging the single-acting linkage against a stop (98).

公开(公告)号：EP0239523A2

公开(公告)日：1987-09-30

申请号：EP87630038.5

申请日：1987-03-25

申请人： AIL CORPORATION

发明人： Brisbon, Eric S. ,  Krosney, Mark

IPC分类号： F02D1/10 ,  F02D1/08 ,  F02D41/38

CPC分类号： F02D41/407 ,  F02D1/08 ,  F02D1/10 ,  Y02T10/44

摘要： In a fuel injection system having a stepper motor (40) positioning the pump rack (32A) in the fuel injection pump to control the end of injection, a preloaded, compliant linkage (52,54,56) is interposed between the stepper motor output pinion gear (48) and the pump rack (32A) to prevent a phase shift between the actual and the desired stepper motor position. The preload of the linkage (52,54,56) is set at greater than the normal operating load and less than the stepper motor output.
The linkage includes a rack member (52) that is urged by a spring-loaded mechanism (76) against the output pinion (48) of the stepper motor (40) to maintain tooth engagement, and a clevis member (56) that is pivoted to allow the rack member to move away from the pinion in the event of a pump rack load of extremely high (tooth-damaging) magnitude.
A closed throttle position is assured by a spring (99) urging the single-acting linkage against a stop (98).

摘要翻译： 在具有将泵架（32A）定位在燃料喷射泵中以控制喷射结束的步进电动机（40）的燃料喷射系统中，预加载的顺应性联动装置（52,54,56）插在步进电机输出 小齿轮（48）和泵齿条（32A），以防止实际和期望的步进电机位置之间的相移。 联动装置（52,54,56）的预载被设定为大于正常工作负载并小于步进电机输出。 联动装置包括齿条构件（52），该齿条构件（52）被弹簧加载机构（76）压靠在步进马达（40）的输出小齿轮（48）上以保持齿啮合;以及枢转的U形夹构件 在齿轮载荷极高（齿轮损伤）的情况下，允许齿条构件从小齿轮移开。 通过弹簧（99）来确保闭合的节气门位置，以使止动件（98）推动单作用连杆。

公开(公告)号：EP0384882A2

公开(公告)日：1990-08-29

申请号：EP90630054.6

申请日：1990-02-23

申请人： AIL CORPORATION

发明人： Brisbon, Eric S. ,  DiCarlo, Jeffrey P. ,  Cavanaugh, John B. ,  Karlson, Ross S.

IPC分类号： F02M47/02 ,  F02M45/00

CPC分类号： F02M57/026 ,  F02M45/00 ,  F02M47/02 ,  F02M57/025 ,  F02M59/105 ,  F02M59/466

摘要： Accumulator injector comprising a needle valve (30), an accumulator chamber and an amplifier chamber (64) in communication with the source of pressurized fuel, the end (74) of the valve (30) being subjected to the pressure in the amplifier chamber (64). An amplifier piston (70') is provided for boosting the pressure in in the amplifier chamber (64) and in the accumulator chamber. A duct (80') extends from a valve assembly (82) along side of and spaced from the amplifier cylinder (72) and communicates with the cylinder (72) by means of a smaller lower port (106) and a larger upper port (108). By restricting the rate of movement of the amplifier piston (70') upwardly, the pressure in the amplifier chamber (64) and hence in the accumulator chamber is relieved at a slower rate, hence changing the rate of opening of the needle valve (30) and the rate of fuel injection. The initial fuel flow from the end chamber (116) through the small port (106) produces a pilot injection. The injection rate is controlled by restricting the pressure decay in the amplifier chamber (64).

摘要翻译： 蓄能器喷射器包括与加压燃料源连通的针阀（30），蓄压室和放大器室（64），阀（30）的端部（74）在放大器室（... 64）。 提供了放大器活塞（70'），用于升高放大器室（64）和蓄能器室中的压力。 管道（80'）从阀组件（82）沿着放大器气缸（72）的侧面和间隔延伸，并通过较小的下部端口（106）和较大的上部端口（106）与气缸（72）连通 108）。 通过向上限制放大器活塞（70'）的移动速度，放大器室64中的压力，因此在蓄能器室中的压力以较慢的速度释放，因此改变针阀（30）的打开速率 ）和燃油喷射速率。 从端室（116）通过小端口（106）的初始燃料流量产生引燃喷射。 通过限制放大器室（64）中的压力衰减来控制喷射速率。

公开(公告)号：EP0239523B1

公开(公告)日：1990-06-06

申请号：EP87630038.5

申请日：1987-03-25

申请人： AIL CORPORATION

发明人： Brisbon, Eric S. ,  Krosney, Mark

IPC分类号： F02D1/10 ,  F02D1/08 ,  F02D41/38

CPC分类号： F02D41/407 ,  F02D1/08 ,  F02D1/10 ,  Y02T10/44