Engine valvetrain deactivation system with switchable rocker arm cam lift

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12180866
SERIAL NO

18662889

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A cylinder deactivation system for an engine includes an engine block defining a cylinder. A valve opens and closes a port to the cylinder. A rocker arm pivots to operate the valve. A camshaft has a cam lift and a cam-to-rocker input system transfers the cam lift through the rocker arm to the valve. A deactivation assembly is disposed in the rocker arm and is responsive to fluid pressure to alternately effect an activated state of the valve and a deactivated state of the valve.

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Patent Owner(s)

  • GM GLOBAL TECHNOLOGY OPERATIONS LLC

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Austin, Paul Rockford, US 20 382
Huerta, Ortiz Rolando Grandville, US 3 3
Opipari, Anteo Carl Saugatuck, US 1 0
Warner, Brian Joseph Hudsonville, US 1 0

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