公开(公告)号：US06406278B1

公开(公告)日：2002-06-18

申请号：US09608374

申请日：2000-06-30

申请人： Sisto Luigi De Matthaeis ,  Angelo Beatrice

发明人： Sisto Luigi De Matthaeis ,  Angelo Beatrice

IPC分类号： F04B3900

CPC分类号： F02M63/0215 ,  F02M55/00 ,  F02M59/46 ,  F02M63/0225 ,  F04B49/22 ,  Y10T137/7559

摘要： The pump has a body including at least a fuel compression chamber and an actuating chamber enclosing the actuating members of the pump; the on-off valve is defined by an independent operating assembly insertable in fluidtight manner inside a hole in the body; the hole connects an inlet conduit to the actuating chamber and to a feed conduit of the compression chamber; the assembly of the valve has a sleeve in turn having an opening located at the fuel feed conduit and which is closed by a shutter sliding inside the sleeve; the sleeve has two seats for two seals located on opposite sides of the opening; and the feed conduit is straight, and can be formed using a drilling tool through the hole.

摘要翻译： 泵具有至少包括燃料压缩室和包围泵的致动构件的致动室的主体; 所述开关阀由独立的操作组件限定，所述独立操作组件可以在所述主体的孔内以流体密封方式插入; 该孔将入口管道连接到致动室和压缩室的进料管道; 阀的组件具有套筒，其又具有位于燃料供给导管处的开口，并且其由在套筒内滑动的闸板封闭; 套筒具有位于开口相对两侧的两个密封件的两个座位; 并且进料管是直的，并且可以使用钻孔工具通过孔形成。

公开(公告)号：US4651779A

公开(公告)日：1987-03-24

申请号：US884248

申请日：1986-07-10

申请人： Renato Filippi ,  Angelo Beatrice

发明人： Renato Filippi ,  Angelo Beatrice

IPC分类号： F02M59/46

CPC分类号： F02M59/462 ,  Y10T137/7774

摘要： A constant-pressure delivery valve for fuel injection pumps for diesel engines includes a conical-surface obturator to which is fixed a body forming an axial chamber containing a calibrated one-way valve with a ball obturator. The ball obturator is located on that side of the chamber facing the conical-surface obturator and controls communication between radial and axial fuel return passages formed beneath the bottom of the chamber.

摘要翻译： 用于柴油发动机的燃料喷射泵的恒压输送阀包括圆锥形表面闭塞器，其固定有形成轴向室的主体，该轴向室包含具有球形闭塞器的校准单向阀。 球填塞器位于腔室面向锥形表面闭塞器的那一侧，并且控制形成在腔室下方的径向和轴向燃料返回通道之间的连通。