Internal-combustion engines – Adjustable combustion chamber – Piston in head adjusted
Reexamination Certificate
2006-06-06
2006-06-06
Kamen, Noah P. (Department: 3747)
Internal-combustion engines
Adjustable combustion chamber
Piston in head adjusted
C123S0780AA
Reexamination Certificate
active
07055469
ABSTRACT:
An apparatus and method for varying a compression ratio of an engine having a block and a head mounted thereto. The apparatus and method includes a cylinder having a block portion and a head portion, a piston linearly movable in the block portion of the cylinder, a cylinder plug linearly movable in the head portion of the cylinder, and a valve located in the cylinder plug and operable to provide controlled fluid communication with the block portion of the cylinder.
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Dutart Charles H.
Lawrence Keith E.
Strawbridge Bryan E.
Caterpillar Inc
Kamen Noah P.
Lundquist Steve D.
Woods Michael L.
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