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公开(公告)号：US4526323A
公开(公告)日：1985-07-02
申请号：US380376
申请日：1982-05-20
Applicant: Kurt Seifert
Inventor： Kurt Seifert
CPC classification number: F02M61/182 , F02M45/086 , F02M61/045 , F02M61/08
Abstract: A fuel injection nozzle for internal combustion engines having a hollow needle in which a valve needle is displaceably supported, which cooperates with an internal valve seat of the hollow needle. Associated with the valve needle are a valve spring and a stop attached to the housing, which restrain the valve needle with respect to the hollow needle as it moves in the opening direction, thus opening the valve. The closing movement of the hollow needle is limited by a stop on the nozzle body, which with a counterpart shoulder on the hollow needle efficaciously forms a shield with respect to the combustion chamber for the bearing gap between the hollow needle and the nozzle body. The hollow needle may advantageously be embodied as a closing member opening outward and cooperating with the nozzle body in order to control further injection openings. The injection nozzle has the advantage that operation is possible without leaking oil, with two injection hole cross sections being opened in a time-controlled manner effected via the needle stroke.
Abstract translation: 一种用于内燃机的燃料喷射嘴，其具有中空针，其中阀针可移动地支撑，其与中空针的内部阀座配合。 与阀针相关联的是阀弹簧和附接到壳体的止动件，当阀针沿打开方向移动时，其相对于中空针限制阀针，从而打开阀。 中空针的关闭运动受到喷嘴体上的停止限制，中空针上的对应肩部有效地形成相对于中空针头和喷嘴体之间的轴承间隙的燃烧室的屏蔽。 中空针可以有利地被实施为向外开口并与喷嘴体配合，以便控制进一步的喷射开口。 注射喷嘴具有的优点是可以在不漏油的情况下进行操作，其中两个注射孔横截面以时间控制的方式通过针冲程打开。
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公开(公告)号：US4442978A
公开(公告)日：1984-04-17
申请号：US400205
申请日：1982-07-21
Applicant: Kurt Seifert
Inventor： Kurt Seifert
CPC classification number: F02M61/20 , F02M45/083 , F02M61/08
Abstract: A fuel injection nozzle is proposed having a valve needle which opens in the direction of fuel flow and a throttle point controlled in accordance with the stroke of the valve needle which is loaded by at least two closing springs, in order to obtain a distinct pressure jump with respect to the required opening pressure when the throttle point is rendered ineffective. As a result, the throttle point is fully effective during idling and at relatively low partial loads and is only rendered ineffective when the supply of fuel is relatively great.
Abstract translation: 提出了一种燃料喷射喷嘴，其具有沿着燃料流动的方向开口的阀针和根据由至少两个闭合弹簧加载的阀针的行程来控制的节气门点，以便获得明显的压力跳跃 当节气门点无效时相对于所需的打开压力。 结果，节气门点在怠速期间和在相对较低的部分负荷下是完全有效的，并且仅在燃料供应相对较大时才变得无效。
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公开(公告)号：US4410141A
公开(公告)日：1983-10-18
申请号：US209347
申请日：1980-11-21
Applicant: Kurt Seifert
Inventor： Kurt Seifert
Abstract: A fuel injection nozzle is proposed which opens toward the outside and functions with a valve needle and two springs, and further wherein a throttle restriction is effective after a first portion of the opening stroke, acting as a pre-stroke, and can be subsequently rendered ineffective. The two springs having a predetermined certain relationship to one another enable an abrupt increase in closing force after the pre-stroke. The first spring, embodied as a compression spring, acts in the closing direction; the second spring, having a smaller force than the first spring and acting counter to the closing direction, is rendered ineffective after the pre-stroke has been performed.
Abstract translation: 提出了一种燃料喷射喷嘴，其朝向外部开口并且具有阀针和两个弹簧，并且其中节流阀限制在打开行程的第一部分之后有效，用作前冲程，并且可以随后呈现 无效 具有预定的一定关系的两个弹簧能够使得在行程之后的关闭力突然增加。 作为压缩弹簧体现的第一个弹簧作用于关闭方向; 第二弹簧具有比第一弹簧小的力并且相对于关闭方向起作用的程度在执行预冲程之后变得无效。
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公开(公告)号：US4344575A
公开(公告)日：1982-08-17
申请号：US210638
申请日：1980-11-26
Applicant: Kurt Seifert
Inventor： Kurt Seifert
CPC classification number: F02M61/20 , F02M45/083 , F02M61/08
Abstract: A fuel injection nozzle is proposed having a valve needle which opens in the direction of fuel flow and a throttle point controlled in accordance with the stroke of the valve needle which is loaded by at least two closing springs, in order to obtain a distinct pressure jump with respect to the required opening pressure when the throttle point is rendered ineffective. As a result, the throttle point is fully effective during idling and at relatively low partial loads and is only rendered ineffective when the supply of fuel is relatively great.
Abstract translation: 提出了一种燃料喷射喷嘴，其具有沿着燃料流动的方向开口的阀针和根据由至少两个闭合弹簧加载的阀针的行程来控制的节气门点，以便获得明显的压力跳跃 当节气门点无效时相对于所需的打开压力。 结果，节气门点在怠速期间和在相对较低的部分负荷下是完全有效的，并且仅在燃料供应相对较大时才变得无效。
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公开(公告)号：US5271270A
公开(公告)日：1993-12-21
申请号：US839162
申请日：1992-02-21
Applicant: Alfred Knauer , Ulli Lessing , Karl Hofmann , Kurt Seifert
Inventor： Alfred Knauer , Ulli Lessing , Karl Hofmann , Kurt Seifert
CPC classification number: F02M65/005
Abstract: An injection nozzle for internal combustion engines has an electrical needle motion sensor, having a cable leading to an evaluation device. To dispose the terminals of the contact lugs of the needle motion sensor and the contact ends of the individual wires of the cable in such a way that they are shake-proof, relieved of tensile strain and protected against splashing water, they are encapsulated in a two-piece insulating shaped part, which is fixed in a recess of the holder body of the injection nozzle. The soldered terminals rest on support bases of pockets in the inner insulating shaped part, and the adjoining parts of the individual wires are bent back and guided in a U around retaining protrusions. The insulating shaped parts and the sheathed cable are fixed by a cover strip or by pins. The preferred field of application is injection nozzles for Diesel engines.
Abstract translation: 用于内燃机的喷嘴具有电针运动传感器，其具有通向评估装置的电缆。 为了配置针运动传感器的接触片的端子和电缆的各个电线的接触端，使得它们是防抖的，减轻拉伸应变并防止溅水，它们被封装在 两片绝缘成型部件，其固定在喷嘴的保持体的凹部中。 焊接端子位于内绝缘成形部分中的袋的支撑基座上，并且各个线的相邻部分向后弯曲并且以U形围绕保持突起引导。 绝缘成形部件和护套电缆通过盖板或销钉固定。 优选的应用领域是用于柴油发动机的喷嘴。
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Patent Agency Ranking
公开(公告)号：US4730785A
公开(公告)日：1988-03-15
申请号：US25151
申请日：1986-12-05
Applicant: Kurt Seifert
Inventor： Kurt Seifert
CPC classification number: F02M61/08 , F02M61/205
Abstract: Fuel injection nozzle for internal combustion engines, which includes a valve needle connected with a piston which limits a dampening chamber filled with fuel and connected with only one throttle passage with the flow path of the fuel. The dampening chamber is formed in a cap which is mounted on the piston. A pressure piece which is loaded by the fuel is guided in the bottom of the cap. The pressure piece pushes immediately against the piston during a prestroke and then comes into engagement with the cap. The pressure piece has a smaller diameter than that of the piston, so that the prestroke of the valve needle is more or less dampened at least at its lower speed and load range.
Abstract translation: PCT No.PCT / DE86 / 00127 Sec。 371日期1986年12月5日第 102（e）日期1986年12月5日PCT提交1986年3月26日PCT公布。 公开号WO86 / 06441 日期：1986年11月6日。用于内燃机的燃料喷射喷嘴，其包括与活塞连接的阀针，该阀针限制了填充有燃料并且仅与一个节气门通道与燃料的流动路径连接的阻尼室。 阻尼室形成在安装在活塞上的盖中。 由燃料装载的压力件在盖的底部被引导。 压力件在预冲击期间立即推靠在活塞上，然后与盖接合。 压力片具有比活塞小的直径，使得至少在其较低的速度和负载范围内，阀针的前冲程或多或少地被润湿。
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公开(公告)号：US4361286A
公开(公告)日：1982-11-30
申请号：US215471
申请日：1980-12-11
Applicant: Karl Hofmann , Kurt Seifert
Inventor： Karl Hofmann , Kurt Seifert
CPC classification number: F02M61/08 , F02M61/168 , Y10T403/7005
Abstract: A fuel injection nozzle having a valve needle opening outward is proposed in which the valve needle is suspended in place in the base of a spring plate embodied in the form of a cup.
Abstract translation: 提出了一种具有向外开口的阀针的燃料喷嘴，其中阀针悬挂在以杯形式体现的弹簧板的基部中的适当位置。
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公开(公告)号：US4572434A
公开(公告)日：1986-02-25
申请号：US559679
申请日：1983-12-09
Applicant: Kurt Seifert
Inventor： Kurt Seifert
CPC classification number: F02M61/205 , F02M61/08
Abstract: A fuel injection nozzle for internal combustion engines having a valve needle opening outward and connected with a piston which defines a damping chamber filled with fuel. Upon the opening stroke of the valve needle, the damping chamber communicates with the flow path of the fuel only via a throttling conduit. The damping chamber is formed in a cap, which is mounted upon the piston and centers itself on the piston. The cap is supported on the nozzle housing toward the side of the injection opening via a pre-stressed support spring, and the cap and the support spring are confined between stops attached to the housing. Therefore, the damping can be limited in a manner dependent on pressure or speed.
Abstract translation: 一种用于内燃机的燃料喷嘴，其具有向外开口的阀针并与活塞连接，所述活塞限定了填充有燃料的阻尼室。 在阀针的打开行程之后，阻尼室仅通过节流导管与燃料的流路连通。 阻尼室形成为盖，其安装在活塞上并使其自身居中活塞。 盖子通过预应力的支撑弹簧被支撑在喷嘴壳体上朝向注射开口侧，并且帽和支撑弹簧被限制在附接到壳体的止挡件之间。 因此，可以以取决于压力或速度的方式限制阻尼。
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公开(公告)号：US4417693A
公开(公告)日：1983-11-29
申请号：US373000
申请日：1982-04-29
Applicant: Paul Fussner , Karl Hofmann , Iwan Komaroff , Kurt Seifert , Dietrich Trachte , Wilhelm Vogel , Hans-Jorg Vogtmann
Inventor： Paul Fussner , Karl Hofmann , Iwan Komaroff , Kurt Seifert , Dietrich Trachte , Wilhelm Vogel , Hans-Jorg Vogtmann
CPC classification number: F02M61/08 , F02M61/20 , F02B3/06 , F02M2200/304
Abstract: To provide for coupling the injection needle of a Diesel injection valve with an inertia mass, and thereby provide for speed damping of the movement of the valve, the pressurized Diesel fuel is applied to a chamber (20,68) in the valve body (10,12,14), which slidably retains the needle valve element (18) at a location downstream of the inertia mass, the inertia mass subdividing the chamber into a spring or pressure chamber (20) and a damping chamber (68) forming a dead, or storage chamber for fuel, the inertia mass being slidable in the second chamber and the clearance between the inertia mass and the walls of the chamber forming a throttled connection duct so that, upon command to opening movement, the needle valve element will engage, after a short dead distance (v), the inertia mass (62) which must move against the flow resistance through the throttled connection upon shifting of fuel between the first and second chamber and thus damping the speed of operation of the valve element. The pressure differential at the two sides of the inertia mass will act on the entire cross-sectional area of the inertia mass, to provide high initial damping of the valve needle movement upon initiation of an opening stroke, while permitting a slim construction minimizing external diameter.
Abstract translation: 为了提供将具有惯性质量的柴油喷射阀的注射针联接，从而提供阀的运动的速度阻尼，加压柴油燃料被施加到阀体（10）中的腔室（20,68） ，12,14），其将针阀元件（18）可滑动地保持在惯性质量下游的位置处，惯性质量将腔室细分成弹簧或压力室（20）和形成死区的阻尼室（68） 或用于燃料的储存室，所述惯性质量可在所述第二室中滑动，并且所述惯性物质与所述室的壁之间的间隙形成节流的连接管道，使得在打开运动的命令时，所述针阀元件将接合， 在短的死距离（v）之后，惯性质量（62），其在第一和第二室之间的燃料移动时必须抵抗通过节流连接的流动阻力而移动，并因此阻尼阀元件的操作速度。 惯性质量两侧的压力差将作用于惯性质量的整个横截面积，以便在打开行程开始时提供阀针运动的高初始阻尼，同时允许减小外径的细长结构 。
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公开(公告)号：US4407457A
公开(公告)日：1983-10-04
申请号：US326091
申请日：1981-11-30
Applicant: Kurt Seifert
Inventor： Kurt Seifert
CPC classification number: F02M61/182 , F02M45/086 , F02M2200/46
Abstract: A fuel injection nozzle for internal combustion engines is proposed in which a valve needle receives an auxiliary needle in a blind bore opening toward the side on which injection occurs, and in which two injection locations each having at least one injection opening are controllable in accordance with the stroke, and in which the valve needle controls the passage of fuel from a pressure chamber of the injection nozzle selectively to the injection areas. The auxiliary needle is urged in the opening direction of the valve needle by a spring and is displaced in the flow direction at a first, lower fuel pressure, whereby it hydraulically separates the two injection areas. At a second, higher pressure the auxiliary needle is carried along as a drag member by the valve needle so as to reestablish communication between the two injection areas.
Abstract translation: 提出了一种用于内燃机的燃料喷射喷嘴，其中阀针在朝向喷射侧的盲孔开口中接收辅助针，并且其中每个具有至少一个喷射开口的两个喷射位置可根据 行程，并且其中阀针控制燃料从喷射喷嘴的压力室通向喷射区域。 辅助针通过弹簧在阀针的打开方向上被推压，并且在第一较低的燃料压力下沿流动方向移位，从而液压地分离两个喷射区域。 第二，较高的压力，辅助针被阀针作为阻力构件携带，以便重新建立两个注射区域之间的连通。
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