Pump or motor with interconnected chambers in the rotor
AssigneeInnas Free Piston B.V.
InventorPeter A. J. Achten
Life of this patent
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Abstract
Pump or motor having a rotor with chambers with a through rotation variable volume which are connectable via switches to either a first line connection or a second line connection. During switching between the line connections, the volume of the chamber changes and to avoid pressure peaks or cavitation the chambers are interconnected with connecting lines. Each connecting line has closures to stop the flow through the connecting line after a limited volume of fluid has passed in one direction.
Claims8
A hydraulic device for converting mechanical energy into a high pressure fluid flow or a high pressure fluid flow into mechanical energy, comprising a housing, a first line connection, a second line connection, a rotatable shaft for supplying or removing mechanical energy, a rotor which is coupled to the shaft, a plurality of chambers with a volume which, on account of the rotation of the rotor, varies between a minimum value and a maximum value, switching means for successively connecting a chamber to either the first line connection or the second line connection when the rotor is rotating, whereby the switching means are designed such that the volume of the chamber varies while the connection of the chambers changes from the first line connection to the second line connection, characterized in that the chambers are interconnected with passages within the rotor, said passages having closure means for closing the passages after a limited volume of fluid has flowed through the connecting lines in one direction.
Dependencies are inferred from the claim text.