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1. 发明授权

US5209208A Fuel injection pump for diesel internal combustion engines 失效
标题翻译：燃油喷射泵用于柴油内燃机
公开(公告)号：US5209208A
公开(公告)日：1993-05-11
申请号：US829052
申请日：1992-02-18
申请人： Hans-Joachim Siebert , Hermann Grieshaber , Bernhard Schenk , Walter Egler , Norbert Meissner
发明人： Hans-Joachim Siebert , Hermann Grieshaber , Bernhard Schenk , Walter Egler , Norbert Meissner
IPC分类号： F02M51/06 , F02B3/06 , F02M45/06 , F02M59/26
CPC分类号： F02M45/066 , F02M45/06 , F02B2275/14 , F02B3/06 , Y02T10/123
摘要： A fuel injection pump designed to deliver an amount of fuel divided into a pilot and a main injection volume, including a surface of a pump plunger which is guided within a pump cylinder, apart from two recesses limited by an inclined control edge, a first horizontal control edge is formed by a frontal shoulder; and on a side opposite the shoulder, it has a fully enclosed transverse groove with a second and third control edge. Two control apertures and an annular groove above them in the wall of the pump cylinder effect the control, in conjunction with the aforementioned control edges, of the precisely determinable pilot injection and, after a delivery interval, determined by the difference (b-a) between the width (b) of the transverse groove and the distance of the annular groove to the control aperture, the subsequent main injection. For the purpose of controlling an exact and largely speed-independent start of delivery of both the pilot and the main injection, the control apertures can be equipped with a straight limiting edge on the pump chamber side.
摘要翻译： PCT No.PCT / DE90 / 00508 Sec。 371日期：1992年2月10日 102（e）日期1992年2月10日PCT提交1990年7月7日PCT公布。公开号WO91 / 02151 日期：1991年2月21日。一种燃料喷射泵，其设计成将分配到飞行员和主注射体积中的一定数量的燃料，包括在泵气缸内引导的泵柱塞的表面，倾斜控制边缘，第一水平控制边缘由前肩形成; 并且在与肩部相对的一侧上，其具有带有第二和第三控制边缘的完全封闭的横向凹槽。在泵筒壁上的两个控制孔和它们上方的环形槽与上述控制边缘一起实现了可精确确定的先导喷射的控制，并且在传送间隔之后，由传送间隔之间的差（ba）确定横向槽的宽度（b）和环形槽与控制孔的距离，随后的主喷射。为了控制先导和主喷射的精确且极大的速度独立的输送开始，控制孔可以配备在泵室侧的直的限制边缘。

2. 发明授权

US5168847A Fuel injection pump for internal combustion engines 失效
标题翻译：燃油喷射泵用于内燃机
公开(公告)号：US5168847A
公开(公告)日：1992-12-08
申请号：US845883
申请日：1992-03-04
申请人： Hermann Grieshaber , Hans-Joachim Siebert , Walter Egler , Norbert Meissner
发明人： Hermann Grieshaber , Hans-Joachim Siebert , Walter Egler , Norbert Meissner
IPC分类号： F02M45/04 , F02M45/06 , F02M45/08
CPC分类号： F02M45/066 , F02M45/083 , F02B2275/14 , Y02T10/123
摘要： A fuel injection pump for internal combustion engines is proposed, in which to attain particularly quiet operation of an engine that is operated with direct injection, the fuel delivery is subdivided into a preinjection and a main injection; this injection is attained by annular groove, coinciding with one another, on the pump piston and pump cylinder, and a connecting groove connecting the coinciding annular grooves with a relief opening. After a partial stroke in the region of coincidence of the annular grooves with one another, the communication with the relief opening is interrupted again. The preinjection quantity can be kept particularly small here, with a short interval between the preinjection and the main injection; in combination with a two-spring-holder injection valve, this particularly small preinjection quantity can be kept constant to a great extent even at varying engine speeds, to attain an optimal reduction in combustion noise at various engine speeds.
摘要翻译：提出了一种用于内燃机的燃料喷射泵，其中为了实现直接喷射操作的发动机的特别安静的操作，燃料输送被细分为预喷射和主喷射; 该注射是通过在泵活塞和泵筒上相互重合的环形槽以及将重合的环形槽与浮动开口连接的连接槽来实现的。在环形槽相互重叠的区域中的部分行程之后，与释放开口的连通再次中断。注射量在这里可以保持特别小，预注射和主注射之间的间隔很短; 与双弹簧保持器喷射阀组合，即使在发动机转速变化的情况下，这种特别小的预喷射量也可以保持恒定，从而在各种发动机转速下实现燃烧噪声的最佳降低。

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