专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4747545A Fuel injection nozzle for internal combustion engines 失效
标题翻译：内燃机燃油喷嘴
公开(公告)号：US4747545A
公开(公告)日：1988-05-31
申请号：US429955
申请日：1982-09-30
申请人： Dietrich Trachte , Helmut Giess
发明人： Dietrich Trachte , Helmut Giess
IPC分类号： F02M61/08 , F02M61/10 , F02M61/16 , F02M61/20
CPC分类号： F02M61/08 , F02M61/205
摘要： A fuel injection nozzle for internal combustion engines is proposed, which includes a valve needle stressed by a closing spring and a damping device to partially damp the opening movement of the valve needle. The damping is effected in accordance with the stroke frequency, the stroke length of the valve needle, or both, or the quantity of fuel throughput per injection cycle, and the damping effect is preferably variable automatically by shifting the time of the onset of damping relative to the onset of injection. As a result, an adaptation of the damping effect to the operating state of the engine at a particular time can be attained which substantially meets the ideal parameters for such damping.
摘要翻译：提出了一种用于内燃机的燃料喷射喷嘴，其包括由关闭弹簧应力的阀针和阻尼装置，以部分地抑制阀针的打开运动。阻尼根据行程频率，阀针的行程长度或两者进行，或者每个喷射循环的燃料通过量，并且阻尼效果优选地通过将阻尼起始时间的相对位移相对自动地变化到注射开始。结果，可以获得在特定时间对发动机的运行状态的阻尼效果的适应，其基本上满足用于这种阻尼的理想参数。

2. 发明授权

US4605171A Fuel injector having fuel-filled damping chamber 失效
标题翻译：具有燃料填充阻尼室的燃料喷射器
公开(公告)号：US4605171A
公开(公告)日：1986-08-12
申请号：US600043
申请日：1984-04-13
申请人： Dietrich Trachte , Helmut Giess
发明人： Dietrich Trachte , Helmut Giess
IPC分类号： F02M61/08 , F02M61/16 , F02M61/20
CPC分类号： F02M61/20 , F02M61/08
摘要： A fuel injection nozzle for internal combustion engines, having an outwardly opening valve needle, which is connected with a piston upon which a damping cap is placed, which is supported on a shoulder integral with the housing. In the damping cap, a damping chamber is formed, which communicates via a throttle conduit with the flow path of the fuel. The diameter of the piston is smaller than the cross section enclosed by the valve seat, as a result of which an annular shoulder is attained, on which the unthrottled fuel pressure acts upon the valve needle in the opening direction. This disposition has the advantage that at lower rpm and smaller fuel quantities, the valve needle can be effectively braked even up to relatively long needle strokes, without the injection duration becoming overly long at higher rpm.
摘要翻译：一种用于内燃机的燃料喷射喷嘴，其具有向外打开的阀针，其与放置有阻尼帽的活塞连接，支撑在与壳体一体的肩部上。在阻尼帽中，形成有阻尼室，其通过节流导管与燃料的流动路径连通。活塞的直径小于由阀座包围的横截面，结果是获得环形肩部，在该位置上，未节流的燃料压力在打开方向作用在阀针上。这种配置的优点在于，在较低的转速和较小的燃料量下，即使直到较长的针冲程也能够有效地制动阀针，而在较高转速下注射持续时间变得过长。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式