F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic
F01L9/11—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column
F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
F01L2001/34423—Details relating to the hydraulic feeding circuit
F01L2001/34446—Fluid accumulators for the feeding circuit
Detendeur a debit variable et distribution par soupape a commande progressive pour moteur a injection d'air comprime fonctionnant en mono et pluri energie et autres moteurs ou compresseurs
Procede et dispositif pour ameliorer le rendement d'un moteur a combustion interne par variation selective au taux de compression effectif selon le regime du moteur
Procede de controle de l'admission et de l'echappement d'un moteur a combustion interne du type a fonctionnement degrade d'au moins un cylindre et moteur utilisant un tel procede
Dispositif destine a faire varier le calage d'un arbre a cames et le temps d'ouverture des soupapes, d'un moteur a explosion a quatre temps.