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US 12,359,682 B2Granted
Pneumatic device with a movably mounted piston
AssigneeAfag Holding AG
InventorsFabian Bachmann, Michael Schmid, Benedikt Heigenhauser
Life of this patent
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AssigneeAfag Holding AG
InventorsFabian Bachmann, Michael Schmid, Benedikt Heigenhauser
Estimating the term…
A pneumatic device having a pneumatic cylinder and a piston movably mounted in the pneumatic cylinder to divide an interior of the pneumatic cylinder into two chambers. The chambers are connected to a line network having a valve assembly. The line network, in a plurality of operating states of the valve assembly serving for venting the respective chamber, connects the respective chamber to at least a respective selected one of a plurality of outflow openings, of the pneumatic device, and in a further operating state of the valve assembly, disconnects the respective chamber from the outflow opening. A control installation of the pneumatic device adjusts the operating state of the valve assembly. The line network is designed so that, in at least three of the operating states for venting the respective chamber, the connection between the respective chamber and the outflow opening is established by mutually dissimilar flow resistances.
A pneumatic device having a pneumatic cylinder and a piston which is movably mounted in the pneumatic cylinder and by way of which an interior of the pneumatic cylinder is subdivided into two chambers, wherein the chambers are connected to a line network of the pneumatic device that comprises a valve assembly, wherein the line network, in a plurality of operating states of the valve assembly serving for venting a respective chamber, is specified to connect the respective chamber to an outflow opening, or at least a respective selected one of a plurality of outflow openings, of the pneumatic device, and in at least one further operating state of the valve assembly, to disconnect said respective chamber from the outflow opening or all outflow openings, wherein a control installation of the pneumatic device is specified to adjust the operating state of the valve assembly, wherein the line network is designed in such a manner that, in at least three of the operating states serving for venting the respective chamber, the connection between the respective chamber and the outflow opening, or the respective selected outflow opening, is established by way of mutually dissimilar flow resistances, wherein said pneumatic device comprises at least one sensor which is specified to detect sensor data pertaining to a position of the piston relative to the pneumatic cylinder, and/or a spatial orientation of the piston and/or of the pneumatic cylinder, and/or pertaining to a pressure in at least one of the chambers, wherein the control installation is specified to adjust the operating state of the valve assembly as a function of the sensor data, and wherein the control installation, when meeting a recuperation condition dependent on the sensor data, is specified to actuate the valve assembly in such a manner that the chamber of which the volume is currently being reduced by the movement of the piston is connected to a pressure source so as to direct compressed air back into the pressure source.
A pneumatic device having a pneumatic cylinder and a piston which is movably mounted in the pneumatic cylinder and by way of which an interior of the pneumatic cylinder is subdivided into two chambers, wherein the chambers are connected to a line network of the pneumatic device that comprises a valve assembly, wherein the line network, in a plurality of operating states of the valve assembly serving for venting a respective chamber, is specified to connect the respective chamber to an outflow opening, or at least a respective selected one of a plurality of outflow openings, of the pneumatic device, and in at least one further operating state of the valve assembly, to disconnect said respective chamber from the outflow opening or all outflow openings, wherein a control installation of the pneumatic device is specified to adjust the operating state of the valve assembly, wherein the line network is designed in such a manner that, in at least three of the operating states serving for venting the respective chamber, the connection between the respective chamber and the outflow opening, or the respective selected outflow opening, is established by way of mutually dissimilar flow resistances, wherein an exhaust line of the line network that is connected to the respective chamber at least in the operating states serving for venting the respective chamber, irrespective of the operating state of the valve assembly, is permanently connected to the outflow opening or at least one of the outflow openings by way of at least one bypass line.
A pneumatic device having a pneumatic cylinder and a piston which is movably mounted in the pneumatic cylinder and by way of which an interior of the pneumatic cylinder is subdivided into two chambers, wherein the chambers are connected to a line network of the pneumatic device that comprises a valve assembly, wherein the line network, in a plurality of operating states of the valve assembly serving for venting a respective chamber, is specified to connect the respective chamber to an outflow opening, or at least a respective selected one of a plurality of outflow openings, of the pneumatic device, and in at least one further operating state of the valve assembly, to disconnect said respective chamber from the outflow opening or all outflow openings, wherein a control installation of the pneumatic device is specified to adjust the operating state of the valve assembly, wherein the line network is designed in such a manner that, in at least three of the operating states serving for venting the respective chamber, the connection between the respective chamber and the outflow opening, or the respective selected outflow opening, is established by way of mutually dissimilar flow resistances, wherein the valve assembly is specified in such a manner that in a non-energized valve installation a selected one of the chambers is connected to a pressure source and/or a compressed air connection of the pneumatic device, and the other one of the chambers is connected to the outflow opening or at least one of the outflow openings, wherein the connection between the other one of the chambers and the outflow opening is established in an operating state for venting the other one of the chambers that has a highest flow resistance for the venting.
Dependencies are inferred from the claim text.