Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing
Reexamination Certificate
2006-01-03
2006-01-03
Denion, Thomas (Department: 3748)
Internal-combustion engines
Poppet valve operating mechanism
With means for varying timing
C123S432000, C123S184430, C123S184530
Reexamination Certificate
active
06981475
ABSTRACT:
The present invention pertains to a process and a system for controlling the intake valves of an internal combustion engine comprising at least two valves per cylinder. During the closing of the intake valves of a cylinder, provisions are made for closing a first valve and then for closing a second valve, the time between the closing of the first valve and the closing of the second valve being such that it permits the propagation toward the second valve of at least one overpressure generated in the first port by the closing of the first valve.
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French Preliminary Search Report, Nov. 14, 2003.
Denion Thomas
Peugeot Citroen Automobiles SA
RatnerPrestia
Riddle Kyle M.
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