Internal-combustion engines – Two-cycle – Pump and cylinder adjacent
Reexamination Certificate
2006-03-21
2009-12-08
Nguyen, Hoang M (Department: 3748)
Internal-combustion engines
Two-cycle
Pump and cylinder adjacent
C123S197100, C123S197400, C123S053100
Reexamination Certificate
active
07628126
ABSTRACT:
An engine includes a crankshaft, rotating about a crankshaft axis of the engine. A power piston is received within a first cylinder and operatively connected to the crankshaft such that the power piston reciprocates through a power stroke and an exhaust stroke during a single rotation of the crankshaft. A compression piston is received within a second cylinder and operatively connected to the crankshaft such that the compression piston reciprocates through an intake stroke and a compression stroke during a single rotation of the crankshaft. A gas passage interconnects the first and second cylinders. The gas passage includes an inlet valve and an outlet valve defining a pressure chamber therebetween. The outlet valve permits substantially one-way flow of compressed gas from the pressure chamber to the first cylinder. The power piston descends to a firing position from its top dead center position.
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Nguyen Hoang M
Scuderi Philip S.
Scuderi Group LLC
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