Engine valve assembly having holding tank with return valve...

Details Engine valve assembly having holding tank with return valve... Engine valve assembly having holding tank with return valve...

F - Mech Eng,Light,Heat,Weapons

02

B

F02B 21/00 (2006.01) F01B 31/14 (2006.01) F01L 1/28 (2006.01) F01L 1/44 (2006.01)

Patent

CA 2583604

An Elevated Expansion-Ratio Internal Combustion Engine has a substantially standard repeating four-stroke sequence for each of a plurality of cylinders. The head of each cylinder has an intake valve, a combustion-gas exhaust valve, and a vapor return valve. A return manifold for vapor connects from respective ones of the cylinders via a plurality of valve assemblies, each of which includes the return valve, into a passage ahead of a beginning portion of an intake manifold. Each valve assembly also has a discharge valve coupled to the return valve via a holding tank for cylinder vapor or gas. Valve stems of the discharge and return valves are coaxial in a single section valve housing or spaced- apart in a two-section valve housing. A quantity of the vapor is received into the holding tank during the compression stroke, and subsequently transferred via the discharge valve to the return manifold.

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