F - Mech Eng,Light,Heat,Weapons – 15 – B
Patent
F - Mech Eng,Light,Heat,Weapons
15
B
F15B 11/02 (2006.01) F15B 11/042 (2006.01) F15B 11/17 (2006.01)
Patent
CA 2740041
A method and a pressurized medium system, comprising: at least one actuator (23) or actuator unit, by means of which it is possible to generate sum forces (Fcyl) effective on said load; at least one working chamber (19, 20, 21, 22) operating by the principle of displacement and located in said actuator or actuator units; at least one charging circuit (HPi, HPia) of a higher pressure, which is a source of hydraulic power; at least one charging circuit (LPi, LPia) of a lower pressure, which is a source of hydraulic power; a control circuit (40), by means of which at least one said charging circuits of higher pressure (HPi, HPia) and at least one of said charging circuits of lower pressure (LPi, LPia) can be coupled, in turn, to at least one of said working chambers (19, 20, 21, 22); wherein each of said working chambers (10, 20, 21, 22) is capable of generating force components (FA, FB, FC, FD) that correspond to the pressures of the charging circuits (HPi, HPia, LPi, LPia) to be coupled to said working chamber, and each force component produces at least one of said sum forces either alone or in combination with the force components produced by the other working chambers of said actuator or actuator unit. The actuator unit is, for example, a slewing device or a rotating device. The system utilizes a controller in the control of the control circuit.
Linvention concerne un procédé et un système à milieu sous pression comprenant : au moins un actionneur (23) ou un ensemble actionneur, permettant de générer des forces cumulées (Fcyl) efficaces sur ladite charge; au moins une chambre de travail (19, 20, 21, 22) fonctionnant par le principe de déplacement et située dans ledit actionneur ou lesdits ensembles actionneurs; au moins un circuit de charge (HPi, HPia) dune pression supérieure, qui est une source de puissance hydraulique; au moins un circuit de charge (LPi, LPia) dune pression inférieure, qui est une source de puissance hydraulique; un circuit de commande (40), permettant de coupler au moins lun desdits circuits de charge de pression supérieure (HPi, HPia) et au moins lun desdits circuits de charge de pression inférieure (LPi, LPia), alternativement, à au moins lune desdites chambres de travail (19, 20, 21, 22). Chacune desdites chambres de travail (10, 20, 21, 22) peut générer des composantes de force (FA, FB, FC, FD) correspondant aux pressions des circuits de charge (HPi, HPia, LPi, LPia) devant être couplés à ladite chambre de travail, et chaque composante de force produit au moins une desdites forces cumulées, seule ou associée aux composantes de force produites par les autres chambres de travail dudit actionneur ou ensemble actionneur. Lensemble actionneur est par exemple un dispositif dorientation ou un dispositif rotatif. Le système utilise un dispositif de commande pour la commande du circuit de commande.
Laamanen Arto
Linjama Matti
Sipola Ari
Vihtanen Hannu-Pekka
Borden Ladner Gervais Llp
Norrhydro Oy
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