Internal-combustion engines – Poppet valve operating mechanism – Hydraulic system
Reexamination Certificate
2007-04-10
2007-04-10
Gimie, Mahmoud (Department: 3747)
Internal-combustion engines
Poppet valve operating mechanism
Hydraulic system
C123S559100
Reexamination Certificate
active
10992198
ABSTRACT:
Engines and methods of controlling an engine may involve one or more fluidically driven actuators associated with engine intake and/or exhaust valves. In some examples, the actuators may be placed in flow communication with high pressure fluid from one source and/or low pressure fluid from another. Timing of valve closing/opening and use of an air supply system may enable engine operation according to a Miller cycle.
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Coleman Gerald N.
Duffy Kevin P.
Fluga Eric C.
Kilkenny Jonathan P.
Leman Scott A.
Caterpillar Inc
Finnegan, Henderson, Farabow, Garret & Dunner
Gimie Mahmoud
LandOfFree
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