公开(公告)号：US06460499B1

公开(公告)日：2002-10-08

申请号：US09761353

申请日：2001-01-16

Applicant: John R. Mason ,  David A. Koblic ,  Jason Janeczko

Inventor： John R. Mason ,  David A. Koblic ,  Jason Janeczko

IPC: F01L114

CPC classification number: F01L1/255 ,  F01L1/146 ,  F01L1/183 ,  F01L1/245

Abstract: A lifter assembly for an internal combustion engine, including an elongate sleeve having an upper radial wall portion provided with oil feed and oil bleed holes through which oil respectively enters and exits the lifter assembly. An elongate, hollow lifter body closed at one end is reciprocatingly disposed within the sleeve, and has a plunger reciprocatingly disposed therein. The plunger has an internal cavity at least partially defining a low pressure oil reservoir which is in at least periodic fluid communication with the oil feed hole. A high pressure oil reservoir is at least partially defined by the plunger and the lifter body closed end, and is in one-way fluid communication with the low pressure oil reservoir. A cap is reciprocatingly disposed within the sleeve and engaged with the plunger. Seals are provided which preclude oil from exiting the lifter assembly through the ends of the sleeve.

Abstract translation: 一种用于内燃机的提升器组件，包括具有上部径向壁部分的细长套筒，所述上部径向壁部分设置有供油和排油孔，油分别通过所述入口和排油孔进入和离开升降机组件。 在一端封闭的细长的中空升降机主体往复地设置在套筒内，并且具有往复地设置在其中的柱塞。 柱塞具有至少部分地限定低油储存器的内部空腔，其至少与供油孔周期性地流体连通。 高压储油器至少部分地由柱塞和升降器主体封闭端限定，并且与低压储油器单向流体连通。 盖子往复地设置在套筒内并与柱塞接合。 提供密封件，其排除油通过套筒的端部离开升降机组件。