Internal-combustion engines – Adjustable combustion chamber – Piston in head adjusted
Reexamination Certificate
2005-12-20
2005-12-20
Kamen, Noah P. (Department: 3747)
Internal-combustion engines
Adjustable combustion chamber
Piston in head adjusted
C123S0480AA
Reexamination Certificate
active
06976456
ABSTRACT:
An adjustable connecting rod system includes a reliable, rapidly responsive mechanism for varying effective connecting rod length to vary the compression ratio of the engine. The mechanism may employ the momentum of connecting rod components during operation of the engine to provide actuation force to vary connecting rod length. Connecting rod length is preferably controlled by manipulation of fluid-actuated locking members. In a preferred embodiment, hydraulic pressure is applied through the use of engine oil or other hydraulic fluids. The connecting rod preferably employs one or more movable compression members such as roller members or other mechanical components that may be shifted from one position to another with relatively little friction in order to vary the effective length of the connecting rod. The movable compression members may engage surfaces of both the crankpin bearing retainer and the connecting rod body, loaded in compression to transmit forces therebetween.
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Chottiner Jeffrey Eliot
Henig Yitzhak Isaac
Makkapati Satheesh
Sashidharan Pravin
Sorab Jagadish
Artz & Artz P.C.
Brehob Diana D.
Ford Global Technologies LLC
Kamen Noah P.
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