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    • 2. 发明授权
    • Fuel injection nozzle for internal combustion engines
    • 内燃机燃油喷嘴
    • US5788161A
    • 1998-08-04
    • US564214
    • 1995-12-15
    • Detlev PotzGuenter LewentzUwe GordonStefan Haug
    • Detlev PotzGuenter LewentzUwe GordonStefan Haug
    • F02M61/04F02M61/16F16K15/14F23D11/38B05B1/30
    • F16K15/144F02M61/047
    • A fuel injection nozzle for internal combustion engines has a holding body with a protruding fixed nozzle needle whose terminal portion, has a valve cone, an annular valve diaphragm cooperates in valve-like fashion. The valve diaphragm is fastened by its outer peripheral portion against the holding body with a union nut, and the edge surrounding the opening is resiliently pressed with initial tension against the valve cone. In order to keep the strains occurring in the stroke, generated by bending, of the valve diaphragm low over its entire region, the valve diaphragm has a bulge oriented counter to the stroke direction. The bulge is preferably composed of an annular region of steep slope (.alpha.) adjoining the fastened outer peripheral region, and an annular region of flat slope (.beta.) extending from it toward the opening. The bulge may also be conical or dome-shaped. In order to limit the stroke of the valve diaphragm, a stroke stop shim is provided, which is firmly fastened to the holding body, together with the valve diaphragm, by the union nut. The form of the injection stream is varied by the form of the end portion of the nozzle needle and the form of the flow opening of the stroke stop disk.
    • PCT No.PCT / DE95 / 00407 Sec。 371 1995年12月15日第 102(e)1995年12月15日日期PCT 1995年3月24日PCT PCT。 WO95 / 28561 PCT出版物 日期1995年10月26日用于内燃机的燃料喷射喷嘴具有保持体,该保持体具有突出的固定喷嘴针,其端子部具有阀锥,环形阀隔膜以阀状方式配合。 阀门隔膜通过其外周部分用联接螺母紧固在保持体上,并且围绕开口的边缘以初始张力弹性地按压在阀锥体上。 为了使阀膜在其整个区域上保持较低的弯曲产生的行程中产生的应变,阀膜具有与冲程方向相反的凸起。 该凸起优选地由毗邻紧固的外围区域的陡坡(α)的环形区域和从其向开口延伸的平坦斜面(β)的环形区域构成。 凸起也可以是圆锥形或圆顶形。 为了限制阀膜的行程,提供行程止动垫片,其通过联管螺母与阀膜片一起牢固地固定到保持体上。 喷射流的形式通过喷嘴针的端部的形式和冲程停止盘的流动开口的形式而变化。
    • 3. 发明授权
    • Fuel injection nozzle for internal combustion engines
    • 内燃机燃油喷嘴
    • US5497947A
    • 1996-03-12
    • US294033
    • 1994-08-24
    • Detlev PotzGuenter LewentzUwe Gordon
    • Detlev PotzGuenter LewentzUwe Gordon
    • F02M61/04F02M61/08F02M61/18
    • F02M61/182F02M61/045F02M61/08
    • A fuel injection nozzle for internal combustion engines that has a nozzle body with a valve seat disposed on the combustion chamber end and an outwardly-opening valve needle with a closing head, which has a closing cone that works together with the closing valve seat. At least one injection port is disposed in the closing head at an angle with respect to the axis of reciprocation of the valve needle, and is opened by a control edge on the nozzle body depending on the inlet pressure of the fuel. In order to minimize any deflection of the injection stream flowing out of the injection port relative to the alignment of the injection port, the port is divided into at least two parallel conduits, which are separated from each other by a dividing wall and which upon the opening stroke of the valve needle are unblocked one after the other by the control edge.
    • 一种用于内燃机的燃料喷射喷嘴,其具有设置在燃烧室端部的具有阀座的喷嘴体和具有闭合头部的向外开启的阀针,所述闭合头具有与闭合阀座一起工作的闭合锥体。 至少一个注射口相对于阀针的往复运动轴线成角度设置在关闭头部中,并根据燃料的入口压力由喷嘴体上的控制边缘打开。 为了使流出喷射口的注射流相对于注射口的排列的偏转最小化,该端口被分成至少两个平行的管道,这些管道通过分隔壁彼此分开, 阀针的打开行程通过控制边缘一个接一个地打开。
    • 4. 发明授权
    • Injection nozzle for internal combustion engines
    • 内燃机喷嘴
    • US5482018A
    • 1996-01-09
    • US351393
    • 1994-12-12
    • Detlev PotzTheodor DuetschGuenter LewentzUwe Gordon
    • Detlev PotzTheodor DuetschGuenter LewentzUwe Gordon
    • F02M61/04F02M61/08F02M61/18
    • F02M61/08F02M61/045F02B2275/14Y02T10/123
    • A fuel injection nozzle for internal combustion engines with direct injection including a nozzle body and an outward-opening valve needle with a closing head, in which outward-oriented injection ports are disposed. In order to form exact oriented fuel streams from the injection onset on, the cross section of the stream is controlled by the valve needle as a function of its stroke. The injection ports have a sharp control edge with a sharp control edge on the nozzle body which determines the injection cross section, and a sealing seat line formed by a hollow frustoconical valve seat on the nozzle body and a frustoconical valve cone on the nozzle needle, with a radially inner annular edge. The annular edge is disposed on an annular body secured to the valve needle and is aligned with the control edge of the injection ports in the injection direction of the injection ports. The annular body is secured to the end of the nozzle needle toward the combustion chamber either nonpositively or positively.
    • PCT No.PCT / DE93 / 00446 Sec。 371日期1994年12月12日第 102(e)日期1994年12月12日PCT提交1993年5月21日PCT公布。 出版物WO93 / 25813 日期:1993年12月23日。一种具有直接喷射的内燃机的燃料喷射嘴,包括喷嘴体和具有封闭头的向外开启的阀针,其中设置有向外的注射口。 为了从注射开始形成精确定向的燃料流,流的横截面作为其行程的函数由阀针控制。 注射口具有尖锐的控制边缘,喷嘴主体上具有尖锐的控制边缘,其确定喷射截面,以及由喷嘴体上的中空截头圆锥​​形阀座和喷嘴针上的截头圆锥形阀座形成的密封座线, 具有径向内部环形边缘。 环形边缘设置在固定到阀针的环形体上,并且在喷射口的喷射方向上与喷射口的控制边缘对准。 环形体无论是正向还是正向,都朝向燃烧室固定到喷嘴针的端部。
    • 6. 发明授权
    • Fuel-injection valve for internal combustion engines
    • 内燃机燃油喷射阀
    • US5755385A
    • 1998-05-26
    • US564522
    • 1995-11-29
    • Detlev PotzGuenter LewentzUwe Gordon
    • Detlev PotzGuenter LewentzUwe Gordon
    • F02M61/04F02M61/08F02M61/10F02M61/18F02M59/00
    • F02M61/182F02M61/045F02M61/08
    • A fuel injection valve for internal combustion engines, with an outward-opening valve member which, at one end projects out of a guide bore in a valve body. The valve has a valve head which acts as a closing member and on which is arranged a sealing face that cooperates with a valve seat on the valve body and which forms a sealing edge. For a variable injection cross section, a sleeve is attached onto the valve member on the region of the valve member located near the valve-member head, in which sleeve are provided a plurality of rows of injection orifices which can be opened in succession with an increasing opening stroke of the valve member. In order to allow a reliable and sealing guidance of the valve member, an inflow duct to the injection orifices is designed as a recess in the valve-member shank, in such a way that a web region guiding and sealing off the valve member in the sleeve remains.
    • 一种用于内燃机的燃料喷射阀,具有向外打开的阀构件,其一端从阀体中的引导孔突出。 该阀具有用作关闭件的阀头,并在其上配置有与阀体上的阀座配合并形成密封边缘的密封面。 对于可变注射截面,套筒附接到位于阀构件头附近的阀构件的区域上的阀构件上,套筒设置有多排注射孔,其可以连续地打开 增加阀构件的打开行程。 为了允许阀构件的可靠和密封引导,到注射孔的流入管道被设计为阀构件柄中的凹部,使得在区域中引导和密封阀构件的腹板区域 袖子仍然存在。
    • 7. 发明授权
    • Fuel injection valve for internal combustion engines
    • 内燃机燃油喷射阀
    • US6152111A
    • 2000-11-28
    • US854216
    • 1997-05-09
    • Detlev PotzGuenter LewentzUwe Gordon
    • Detlev PotzGuenter LewentzUwe Gordon
    • F02M45/12F02M47/02F02M61/04F02M61/08F02M61/10F02M61/20F02M63/00F02M41/00
    • F02M45/12F02M47/027F02M61/045F02M61/08F02M61/20F02M2200/304
    • The invention proposes a fuel injection valve for internal combustion engines, having a valve member (11), which can be displaced axially outward in a bore (9) of a valve body (1) counter to the force of a closing spring (47) and which on its end toward the combustion chamber has a closing head (13), protruding from the bore (9) and forming a valve closing member, that on its side toward the valve body (1) has a valve sealing face (15) with which it cooperates with a valve seat face (17) disposed on the end of the valve body (1) toward the combustion chamber, and having at least one injection opening on the closing head (13) which originates at a pressure chamber (19) and whose outlet opening is covered by the valve body (1) in the closing position of the valve member (11) and is uncovered in the outward-oriented opening stroke. In the fuel injection valve a damping chamber (35) is provided, which damps the stroke motion of the valve member (11) in the opening direction and moreover enables shaping of the course of injection.
    • 本发明提出了一种用于内燃机的燃料喷射阀,具有阀构件(11),其能够相对于闭合弹簧(47)的力而在阀体(1)的孔(9)中轴向向外移位, 并且其端部朝向燃烧室具有从孔(9)突出并形成阀关闭构件的封闭头(13),其在朝向阀体(1)的一侧具有阀密封面(15), 其与阀体(1)的端部朝向燃烧室配置的阀座面(17)配合,并且在封闭头部(13)上具有至少一个注入口,该至少一个注射开口起始于压力室(19) ),并且其出口在阀构件(11)的关闭位置被阀体(1)覆盖,并且在向外取向的打开行程中未被覆盖。 在燃料喷射阀中,设置有阻尼室(35),其阻止阀构件(11)在打开方向上的行程运动,并且还能够使注塑过程成形。
    • 9. 发明授权
    • Injection nozzle for internal combustion engines
    • 内燃机喷嘴
    • US5522550A
    • 1996-06-04
    • US351394
    • 1994-12-12
    • Detlev PotzGuenter LewentzUwe Gordon
    • Detlev PotzGuenter LewentzUwe Gordon
    • F02M61/04F02M61/08F02M61/18
    • F16J15/04F02M61/045F02M61/08F02M61/18F02B2275/14Y02T10/123
    • A fuel injection nozzle for internal combustion engines has a nozzle body and an outward-opening valve needle with a closing head. To produce tightly focused injection streams, the closing head has, in addition to a valve cone that cooperates with a valve seat on the nozzle body, a piston acted upon by fuel, with a jacket cut away by means of a recess and pierced by openings. The discharge orifice of the openings is axially offset from the valve cone, so that the injection cross sections, which are elongated and axially parallel, are not opened up by a control edge on the valve seat until after an idle stroke. A relief groove between the valve cone and the piston of the closing head assures a defined contact of the valve cone with the valve seat.
    • PCT No.PCT / DE93 / 00447 Sec。 371日期1994年12月12日第 102(e)日期1994年12月12日PCT提交1992年5月21日PCT公布。 出版物WO93 / 25814 日期为1993年12月23日。内燃机用燃料喷嘴具有喷嘴体和具有闭合头的向外开口阀针。 为了产生紧密集中的注射流,闭合头除了与喷嘴体上的阀座配合的阀锥之外还具有由燃料作用的活塞,其中夹套通过凹口切除并被开口刺穿 。 开口的排出孔轴向地偏离阀锥,使得细长且轴向平行的注入截面不被阀座上的控制边缘打开,直到空转行程为止。 阀芯和闭合头的活塞之间的一个释放槽确保阀锥与阀座的限定接触。
    • 10. 发明授权
    • Fuel injection nozzle for motor vehicles
    • 汽车燃油喷嘴
    • US5405088A
    • 1995-04-11
    • US176996
    • 1994-01-03
    • Uwe GordonGuenter LewentzDetley Potz
    • Uwe GordonGuenter LewentzDetley Potz
    • F02M61/06F02M61/04F02M61/08F02M61/18B05B1/32F02M61/00
    • F02M61/045F02M61/08
    • A fuel injection nozzle for internal combustion engines having a nozzle body with a valve seat disposed on a side of the combustion chamber of the internal combustion engine and an outwardly opening needle valve with a closing head that has a closing cone that cooperates with the valve seat. At least one outwardly oriented injection hole is disposed in the closing head that is supplied with fuel via a supply conduit from a pressure chamber. The supply conduit is oriented axially with respect to the injection hole and changes over into this injection hole in a funnel shape. Its width corresponds approximately to the length of the injection hole. The injection hole and supply conduit extend at an acute angle a to the longitudinal axis of the closing head that is adapted to the combustion chamber of the internal combustion engine. The intake of the supply conduit is located in a face end of the closing head remote from the end on the side of the combustion chamber.
    • 一种用于内燃机的燃料喷射喷嘴,其具有设置在内燃机的燃烧室侧的具有阀座的喷嘴体和具有闭合头的向外开口针阀,所述闭合头具有与阀座配合的闭合锥体 。 至少一个向外取向的喷射孔设置在关闭头部中,该压缩空气通过供给管道从压力室供给燃料。 供应导管相对于注射孔轴向定向,并以漏斗形状转换到该注入孔中。 其宽度大致对应于注入孔的长度。 喷射孔和供应导管以适合于内燃机的燃烧室的关闭头的纵向轴线成锐角A延伸。 供应导管的入口位于远离燃烧室一侧的端部的关闭头的面端。