rocker arm


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rocker arm

n.
A pivoted lever used in an internal combustion engine to transfer cam or pushrod motion to a valve stem.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

rocker arm

n
(Automotive Engineering) a lever that rocks about a pivot, esp a lever in an internal-combustion engine that transmits the motion of a pushrod or cam to a valve
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

rock′er arm`


n.
a rocking or oscillating arm or lever rotating with a moving shaft or pivoted on a stationary shaft.
[1855–60]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.rocker arm - a lever pivoted at the centerrocker arm - a lever pivoted at the center; used especially to push a valve down in an internal-combustion engine
lever - a rigid bar pivoted about a fulcrum
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
References in periodicals archive ?
The Power-Train Control Module (PCM) software which controls the cylinder deactivation function may not operate correctly, and may cause an Intake Valve Rocker Arm to move out of position and make contact with other internal engine parts.'
The automotive rocker arm is an important part of the internal combustion engine.
Eaton (eaton.com) is taking advantage of the fundamental architecture of a diesel engine to address exhaust gas emissions by deploying a switchable roller rocker arm on each cylinder that's electro-mechanically actuated (not hydraulically) so that the exhaust gas recirculation system can kick in right away, even during cold starts, so that the selective catalytic reduction (SCR) system can do its job sooner rather than later.
The purpose of the work is to develop sequence of actions for kinematic research of velocities of points that coincide with the geometric centers of kinematic pairs of the second order fourth class structural group with a movable closed loop formed by three connecting rods and one rocker arm, based on provisions of the course of the theory of mechanisms and machines on the structural property of mechanisms with structural groups to change the class depending on the conditionally selected other possible initial mechanism, that becomes part of the structure of driven links of the mechanism, provisions on "singular points" and applies the method of theoretical mechanics course on kinematic study of the material points mechanical system with instantaneous velocity center (I.V.C.).
Extreme wear was found on pushrod ends and the rocker arm sockets.
This shortened length results in less contact stress on the brake rocker arm and camshaft (Figure: 4)
The Ace's pumping action was achieved by a horizontal slot in the rocker arm. A crank pin fit into this slot.
Once Scorpion's engineers felt they had the ultimate design for a shaft mount rocker arm with endurance qualities, the manufacturing crew produced prototype components for testing.
The fuel/water separator's vent lines that mount into engine's rocker arm covers
Low-friction technologies such as an offset cylinder and a roller rocker arm are supplemented by such techniques as intelligent control to lessen friction during power generation and the first adoption of a shell-type needle bearing for the rocker arm shaft.
SKF (UK) has launched a new Rocker Arm Bearing Unit developed to enhance the operating of valve mechanisms in 4-stroke engines.