Ford Global Technolgoies, LLC

Daniel James Baraszu

David Lee Boggs

V Durga Nageswar Rao

Yash Andrew Imai

Michael Joseph Zaitz

George Aristidis Papaioannou

Steve Poe

Satheesh Makkapati

Pravin Sashidharan

Peter Renny George

Enio Goyannes Gomes

David Mark Foulkes

A variable length connecting rod for changing a compression ratio of an engine is provided. The connecting rod includes a first locking assembly for locking the connecting rod in a first effective length setting corresponding to a high compression ratio. The connecting rod further includes a second locking assembly for releasably locking the connecting rod in a second effective length setting corresponding to a low compression ratio. When a length change is initiated, hydraulic fluid unlocks one of the locking assemblies allowing inertial force to effect the length change during an engine cycle. At completion of a length change, the other locking assembly automatically locks. The locking assemblies are self-contained units that are assembled to a bearing retainer

Connecting rod for a variable compression engine

The lost motion arm 44 has first and second contact surfaces,and,A latch mechanism is connected on the body with an extendable plunger,having a first contact surface,and a second contact surface,The plunger,has a first position for first contact surface,engagement with the lost motion arm first contact surface,to prevent angular movement of the lost motion arm,with respect to the body,in a first angular direction. When angular movement in the first angular direction is prevented, the motion of the lost motion arm,imparted by the cam lobe,is transmitted to the body,to provide for a first state of operation of the valve stem,When the plunger,is in a second position, non-contacting with the lost motion arm,the lost motion arm,is allowed to pivot relative to the body,Accordingly, the rocker arm assembly,will be in a second state of total or partial deactivation of the valve stem,The plunger second contact surface,contacts with the lost motion arm second contact surface,to cause the plunger,to be cammed out of the first position when the plunger,is in the first position and when the plunger first contact surface,is not engaged with the lost motion arm's first contact surface

Rocker arm assembly

An internal combustion engine includes separated oil drain-back and crankcase ventilation passages. The oil drain-back passages extend from the cylinder head to a position below the top level of oil in the engine's crankcase. The crankcase ventilation passages extend from passages formed in the main bearing bulkheads from positions above the oil level in the crankcase and ultimately through the cylinder head. Oil dams surrounding the uppermost portions of the crankcase ventilation passages prevent oil from running downwardly through the crankcase ventilation passages.

Internal combuston engine having separated cylinder head oil drains and

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Plymouth, MI, United States of America

Daniel James Baraszu