Ford Global Technolgoies, LLC

Jonathan Patrick Jeffries

Michael Bruno Magnan

Todd Jay Brewer

Thomas Jeremy Kostrzewski

Brian Jon Fregonese

Brian Denis Armstrong

A piston includes a crown having a deck, a spark recess, an exhaust valve recess, and an intake valve recess. The piston also includes a wedge disposed on the crown extending from the exhaust valve recess and the intake valve recess toward the spark recess above the deck. The wedge is a planar wedge disposed at an angle substantially parallel to an associated exhaust valve received by the exhaust valve recess. The crown is symmetrical about a piston center line.

Piston crown to raise compression ratio

Systems and methods for selectively activating and deactivating gas exchange valves in a variable displacement internal combustion engine include a rocker arm having a positioning device that opposes movement of a lash adjustment device while deactivated to position a coupling hole of the rocker arm within a desired coupling range to facilitate coupling of the rocker arm during subsequent activation of an associated engine cylinder.

Growing community of inventors

Canton, MI, United States of America

Jonathan Patrick Jeffries