Internal combustion engine with elevated expansion ratio

Details Internal combustion engine with elevated expansion ratio Internal combustion engine with elevated expansion ratio

2005-06-21

2005-06-21

Dolinar, Andrew M. (Department: 3747)

Internal-combustion engines

Four-cycle

Having subcharger associated with the cylinder

Reexamination Certificate

active

06907859

ABSTRACT:
An Elevated Expansion-Ratio Internal Combustion Engine has a substantially standard repeating four-stroke sequence for each cylinder, and the Engine includes for each cylinder: an intake valve, a combustion-gas exhaust valve, and a vapor return valve. A return manifold for vapor connects from the return valves of respective ones of the cylinders back into a passage ahead of a beginning portion of an intake manifold. Substantially during a predetermined part of each compression stroke in the sequence of strokes, the return valve opens after a closing of the intake valve, and thereafter closes at a time within the compression stroke corresponding to a predetermined position of the piston in the cylinder.

REFERENCES:
patent: 3878826 (1975-04-01), Date et al.
patent: 4192265 (1980-03-01), Amano et al.

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