Definitions for rocker arm
rocker arm

Princeton's WordNetRate this definition:0.0 / 0 votes

1. rocker arm, valve rockernoun

   a lever pivoted at the center; used especially to push a valve down in an internal-combustion engine

WikipediaRate this definition:0.0 / 0 votes

1. Rocker arm

   In the context of an internal combustion engine, a rocker arm is a valvetrain component that typically transfers the motion of a pushrod to the corresponding intake/exhaust valve. Rocker arms in automobiles are typically made from stamped steel, or aluminum in higher-revving applications. Some rocker arms (called roller rockers) include a bearing at the contact point, to reduce wear and friction at the contact point.

ChatGPTRate this definition:0.0 / 0 votes

1. rocker arm

   A rocker arm is a hinged lever in an internal combustion engine that translates the rotational motion from the camshaft to vertical or linear motion in order to open and close the intake and exhaust valves. It plays a critical role in the functioning of the engine, ensuring optimal timing for the flow of air and fuel mixture into the cylinder and evacuation of exhaust gases.

WikidataRate this definition:0.0 / 0 votes

1. Rocker arm

   Generally referred to within the context of the internal combustion engine of automotive, marine, motorcycle and reciprocating aviation engines, the rocker arm is an oscillating lever that conveys radial movement from the cam lobe into linear movement at the poppet valve to open it. One end is raised and lowered by a rotating lobe of the camshaft while the other end acts on the valve stem. When the camshaft lobe raises the outside of the arm, the inside presses down on the valve stem, opening the valve. When the outside of the arm is permitted to return due to the camshafts rotation, the inside rises, allowing the valve spring to close the valve. The drive cam is driven by the camshaft. This pushes the rocker arm up and down about the trunnion pin or rocker shaft. Friction may be reduced at the point of contact with the valve stem by a roller cam follower. A similar arrangement transfers the motion via another roller cam follower to a second rocker arm. This rotates about the rocker shaft, and transfers the motion via a tappet to the poppet valve. In this case this opens the intake valve to the cylinder head. The effective leverage of the arm is determined by the rocker arm ratio, the ratio of the distance from the rocker arm's center of rotation to the tip divided by the distance from the center of rotation to the point acted on by the camshaft or pushrod. Current automotive design favors rocker arm ratios of about 1.5:1 to 1.8:1. However, in the past smaller positive ratios and even negative ratios have been used. Many pre-WW2 engines use 1:1 ratios.

Matched Categories

1. • Lever

How to pronounce rocker arm?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say rocker arm in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of rocker arm in Chaldean Numerology is: 1

2. Pythagorean Numerology

   The numerical value of rocker arm in Pythagorean Numerology is: 3

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=rocker arm
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Rocker_Arm
3. ^ ChatGPT
   https://chat.openai.com
4. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=rocker arm