rocker arm

noun Date: 1851 a center-pivoted lever actuated by a cam to push an automotive engine valve down

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • Rocker arm — Rocker Rock er, n. 1. One who rocks; specifically, one who rocks a cradle. [1913 Webster] It was I, sir, said the rocker, who had the honor, some thirty years since, to attend on your highness in your infancy. Fuller. [1913 Webster] 2. One of the …   The Collaborative International Dictionary of English

  • rocker arm — n. an armlike piece attached to a rockshaft, as in automotive engines …   English World dictionary

  • Rocker arm — Generally referred to within the internal combustion engine of automotive, marine, motorcycle and reciprocating aviation engines, the rocker arm is a reciprocating lever that conveys radial information from the cam lobe into linear information at …   Wikipedia

  • rocker arm — A curved lever that pivots in the middle. One end is attached to the top of the valve stem. In overhead valve engines the other end is attached to the push rod. In some overhead cam engines the other end is attached directly to the camshaft lobe …   Dictionary of automotive terms

  • rocker arm — rock′er arm n. aum mac a rocking or oscillating arm or lever rotating with a moving shaft or pivoted on a stationary shaft • Etymology: 1855–60 …   From formal English to slang

  • rocker arm — noun a lever pivoted at the center; used especially to push a valve down in an internal combustion engine • Syn: ↑valve rocker • Hypernyms: ↑lever …   Useful english dictionary

  • rocker arm — Mach. a rocking or oscillating arm or lever rotating with a moving shaft or pivoted on a stationary shaft. [1855 60] * * * …   Universalium

  • rocker arm — A pivoted arm in the cylinder head of an aircraft reciprocating engine. It is actuated by the push rod to push open the intake or the exhaust valve …   Aviation dictionary

  • rocker arm — /ˈrɒkər am/ (say rokuhr ahm) noun a lever, usually pivoted near its midpoint, used to transmit motion to a valve stem from a cam …   Australian English dictionary

  • rocker arm shaft — The shaft upon which the rocker arms are mounted so that the rocker arms can pivot …   Dictionary of automotive terms

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