-
公开(公告)号：US20120205470A1
公开(公告)日：2012-08-16
申请号：US13503686
申请日：2010-10-01
CPC分类号： F02M47/027 , F02M61/168 , F02M2200/8084 , F02M2200/8092 , Y10T29/49412 , Y10T29/49425
摘要： The invention relates to a method for producing a fuel injection valve (10; 10a; 60; 60a), in which a valve needle (40; 40a; 62; 62a) which closes at least one fuel outlet opening (49) is inserted into an injector housing (11), wherein that end of the valve needle (40; 40a; 62; 62a) which lies opposite the at least one fuel outlet opening (49) is guided in a valve element (32) which has a pressurized control chamber (37) which is filled with fuel, wherein the control chamber (37) can be closed on the side which faces away from the valve needle (40; 40a; 62; 62a) by a closing element (23) which forms a passage during opening and is connected at least indirectly to a fuel return line (5) which is under low pressure, wherein fuel volume which is present in the control chamber (37) flows away through the passage after opening of the control chamber (37) by means of the closing element (23), wherein the valve needle (40; 40a; 62; 62a) moves in the direction of the closing element (23), wherein the at least one fuel outlet opening (49) is opened, and wherein a delay time (t) occurs between the opening of the control chamber (37) and the opening of the at least one fuel outlet opening (49) on account of the magnitude of the volume of the control chamber (37) and on account of the rigidity of the valve needle (40; 40a; 62; 62a), which rigidity is caused by the modulus of elasticity, the diameter (D) and the length (L) of the valve needle (40; 40a; 62; 62a). There is provision according to the invention for at least the volume of the control chamber (37) to be adapted in order to achieve identical delay times (t) in fuel injection valves (10; 10a; 60; 60a) having injector housings (11) of different length and valve needles (40; 40a; 62; 62a) of different length, in such a way that the volume of the control chamber (37) is reduced in order to shorten the delay time (t) and the volume of the control chamber (37) is increased in order to lengthen the delay time (t).
-
公开(公告)号：US08113176B2
公开(公告)日：2012-02-14
申请号：US12447322
申请日：2007-08-29
CPC分类号： F02M63/0015 , F02M47/027 , F02M55/002 , F02M63/0026 , F02M63/0031 , F02M63/004 , F02M63/0043
摘要： The invention relates to an injector for injecting fuel into combustion chambers. According to the invention, a valve piston of a control valve is provided with low pressure on both faces thereof. The valve piston is arranged in a valve chamber hydraulically connected to a control chamber and is guided inside a sleeve received in the valve chamber. The valve chamber contains a spring supported on one end against the sleeve and on the other end on the valve piston such that the spring presses the valve piston onto a valve seat and the sleeve onto an opposing bottom surface. The valve piston diameter inside the sleeve corresponds to the effective valve piston diameter at the valve seat.
摘要翻译： 本发明涉及一种用于将燃料喷射到燃烧室中的喷射器。 根据本发明，控制阀的阀活塞在其两个面上设置有低压。 阀活塞设置在液压连接到控制室的阀室中，并被引导到容纳在阀室中的套筒内。 阀室包含一个弹簧，该弹簧支撑在一端抵靠套筒上，另一端支撑在阀活塞上，使得弹簧将阀活塞压到阀座上并将套筒压到相对的底表面上。 套管内的阀活塞直径对应于阀座处的有效阀活塞直径。
-
公开(公告)号：US20100071665A1
公开(公告)日：2010-03-25
申请号：US12447322
申请日：2007-08-29
CPC分类号： F02M63/0015 , F02M47/027 , F02M55/002 , F02M63/0026 , F02M63/0031 , F02M63/004 , F02M63/0043
摘要： The invention relates to an injector for injecting fuel into combustion chambers. According to the invention, a valve piston of a control valve is provided with low pressure on both faces thereof. The valve piston is arranged in a valve chamber hydraulically connected to a control chamber and is guided inside a sleeve received in the valve chamber. The valve chamber contains a spring supported on one end against the sleeve and on the other end on the valve piston such that the spring presses the valve piston onto a valve seat and the sleeve onto an opposing bottom surface. The valve piston diameter inside the sleeve corresponds to the effective valve piston diameter at the valve seat.
摘要翻译： 本发明涉及一种用于将燃料喷射到燃烧室中的喷射器。 根据本发明，控制阀的阀活塞在其两个面上设置有低压。 阀活塞设置在液压连接到控制室的阀室中，并被引导到容纳在阀室中的套筒内。 阀室包含一个弹簧，该弹簧支撑在一端抵靠套筒上，另一端支撑在阀活塞上，使得弹簧将阀活塞压到阀座上并将套筒压到相对的底表面上。 套管内的阀活塞直径对应于阀座处的有效阀活塞直径。
-
公开(公告)号：US20080290196A1
公开(公告)日：2008-11-27
申请号：US12096488
申请日：2006-10-16
申请人： Andreas Rettich , Stefan Haug , Markus Rueckle , Stephan Amelang
发明人： Andreas Rettich , Stefan Haug , Markus Rueckle , Stephan Amelang
CPC分类号： F02M63/0071 , F02M47/027 , F02M61/16 , F02M61/168 , F02M63/0015 , F02M2200/16 , F02M2547/003
摘要： The invention relates to a fuel injector having a solenoid valve for actuating an armature assembly which is configured in one piece or a plurality of pieces. A closing element is actuated via this in order to relieve the pressure in a control chamber. The armature assembly is guided in an armature guide which is fastened in the injector body by means of a valve-clamping screw. In a fixing region in the injector body, the armature guide has at least one circumferential recess which allows for deformation of the fixing region during fastening by the valve-clamping screw.
摘要翻译： 本发明涉及一种燃料喷射器，其具有用于致动电枢组件的电磁阀，该电枢组件被配置成一片或多片。 为了减轻控制室中的压力，关闭元件通过其启动。 电枢组件在衔铁导向件中引导，电枢引导件通过阀夹紧螺钉紧固在注射器主体中。 在注射器主体中的固定区域中，电枢引导件具有至少一个圆周凹槽，该周向凹槽允许通过夹紧螺钉紧固时固定区域的变形。
-
-
-
搜索结果
4 条记录 (耗时 0.02 秒)