BOOSTED INTERNAL COMBUSTION ENGINE PROVIDED WITH VALVE ACTUATION SYSTEM

Boosted internal combustion engine (IC) provided with valve actuation system (VA), the combustion engine comprising a head (H) where a poppet valve (V) is arranged in such a way to open protruding in the combustion chamber and to close against a corresponding seat, the valve communicating the combus...

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Bibliographic Details
Main Author FESSLER, Harald
Format Patent
LanguageEnglish
French
German
Published 13.03.2024
Subjects
BLASTING
COMBUSTION ENGINES
COMBUSTION ENGINES IN GENERAL
CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
ENGINE PLANTS IN GENERAL
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
INTERNAL-COMBUSTION PISTON ENGINES
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
STEAM ENGINES
WEAPONS
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Summary:Boosted internal combustion engine (IC) provided with valve actuation system (VA), the combustion engine comprising a head (H) where a poppet valve (V) is arranged in such a way to open protruding in the combustion chamber and to close against a corresponding seat, the valve communicating the combustion chamber with an intake manifold (IK), the actuation system (VA) including a pneumatic actuator (PD) comprising a piston (AP) operatively connected with the stem (VS) of the poppet valve (V), at least a first chamber (FC) where the piston (AP) is movable in such a way the first chamber is between the poppet valve and the piston (AP), a spring (SP) arranged to expand the first chamber, wherein the first chamber is fluidly connected with the intake manifold through a pressurization throttled channel (PC) and a pressure sink (SK), which is at a pressure constantly under the intake one, through a controllable valve (SV).
Bibliography:Application Number: EP20210173468