Invention Application
US20080314340A1 Two-step roller finger cam follower assembly having a follower travel limiter
有权
具有跟随行程限制器的两步辊指凸轮从动组件
- Patent Title: Two-step roller finger cam follower assembly having a follower travel limiter
- Patent Title (中): 具有跟随行程限制器的两步辊指凸轮从动组件
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Application No.: US11820789Application Date: 2007-06-20
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Publication No.: US20080314340A1Publication Date: 2008-12-25
- Inventor: Thomas H. Fischer , Andrew J. Lipinski , Hermes A. Fernandez , Timothy W. Kunz , Richard B. Roe
- Applicant: Thomas H. Fischer , Andrew J. Lipinski , Hermes A. Fernandez , Timothy W. Kunz , Richard B. Roe
- Main IPC: F01L1/02
- IPC: F01L1/02

Abstract:
A two-step roller finger follower assembly for use in conjunction with a camshaft of an internal combustion engine, wherein the camshaft has at least one first lobe and at least one second lobe. The roller finger follower assembly comprises a follower body for engaging the first cam lobe and having a central aperture, a follower pivotably disposed on the follower body in the central aperture for engaging the second cam lobe, and a limiting stop disposed on the follower body for engaging a feature on the follower to limit travel of the follower body with respect to the follower. The limiting stop prevents overtravel of the follower body during valve-deactivation mode of the assembly, thus preventing excessive leak down of an associated hydraulic lash adjuster.
Public/Granted literature
- US07798113B2 Two-step roller finger cam follower assembly having a follower travel limiter Public/Granted day:2010-09-21
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