
基本信息:
- 专利标题: Hydraulic tappets
- 专利标题(中):液压挺杆
- 申请号:EP90304187.9 申请日:1990-04-19
- 公开(公告)号:EP0396279A1 公开(公告)日:1990-11-07
- 发明人: Randle, Steven James
- 申请人: JAGUAR CARS LIMITED
- 申请人地址: Browns Lane Allesley Coventry CV5 9DR GB
- 专利权人: JAGUAR CARS LIMITED
- 当前专利权人: JAGUAR CARS LIMITED
- 当前专利权人地址: JAGUAR CARS LIMITED
- 代理机构: Cundy, Anthony Brian
- 优先权: GB8910102 19890503
- 主分类号: F01L1/24
- IPC分类号: F01L1/24
摘要:
A hydraulic tappet for an internal combustion engine has a collar (15) located axially on a valve stem (10), the outer periphery of the collar (15) slidably engaging a cylindrical bore (20) which is coaxial with the valve stem (10). A cap (25) having a central tubular formation (26) which slidingly engages over the end (17) of the valve stem (10) and an outer periphery which engages the cylindrical bore (20), is separated axially of the collar (15), to define a first chamber (30) between the cap (25) and collar (15) and a second chamber (35) between the cap (25) and the end (17) of valve stem (10). An inlet (31, 32) for hydraulic fluid is provided to the first chamber (30) and the first and second chambers (30, 35) one interconnected by a non-return valve (37) which prevents flow from the second chamber (35). A controlled leakage path is provided from the second chamber and a spring (40) biases the cap (25) into engagement with a cam formation (45).
摘要(中):
一种用于内燃机的液压挺杆具有轴向位于阀杆(10)上的轴环(15),轴环(15)的外周可滑动地接合与阀杆(10)同轴的圆柱形孔(20) )。 具有可滑动地接合在阀杆(10)的端部(17)上的中央管状结构(26)和接合圆柱形孔(20)的外周边的帽(25)沿轴向与套环 )以限定帽(25)和套环(15)之间的第一室(30)以及帽(25)和阀杆(10)的端部(17)之间的第二室(35)。 用于液压流体的入口(31,32)被提供到第一腔室(30)和第一和第二腔室(30,35),其中一个通过防止来自第二腔室(35)的流动的止回阀(37) )。 从第二腔室提供受控的泄漏路径,并且弹簧(40)偏压盖(25)与凸轮结构(45)接合。
公开/授权文献:
- EP0396279B1 Hydraulic tappets 公开/授权日:1992-04-15
IPC结构图谱:
F | 机械工程;照明;加热;武器;爆破 |
--F01 | 一般机器或发动机;一般的发动机装置;蒸汽机 |
----F01L | 机器或发动机用的循环操作阀 |
------F01L1/00 | 阀机构或阀装置,如升阀机构 |
--------F01L1/02 | .阀驱动装置 |
----------F01L1/22 | ..自动的 |
------------F01L1/24 | ...用流体装置,如液压装置 |