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AssigneeUniversidade De Aveiro
InventorsAntónio Manuel GODINHO COMPLETO, Fernando José NETO DA SILVA, João Carlos DOS SANTOS BATISTA
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The present disclosure relates to a variable displacement vane pump, in particular for oil, comprising a body having a cavity wherein a movable ring slides in the longitudinal direction over the rotor which rotates around an axis and which is provided with vanes which are radially supported on the inner surface of the fixed ring of fixed eccentricity relative to the rotation axis of the rotor, and with movement means in the longitudinal direction of the movable ring according to a pilot pressure between a position corresponding to the maximum volume of the plurality of chambers, the return elastic spring being in this position at its maximum length, and a predetermined end position corresponding to the minimum volume of the plurality of chambers, the return elastic spring being in this position at its minimum length by action of the displacement in the longitudinal direction of the movable wall which occurs simultaneously to the longitudinal displacement of the plurality of vanes and of the movable ring.
A variable displacement vane pump of the type having a body with a fixed ring fixed to said body, a rotor provided with a plurality of radial vanes, wherein each vane is adapted to slide radially in a corresponding slot in said rotor, wherein the vanes slide along the circular inner surface of said fixed ring, and wherein the rotation axis of the rotor is eccentric relative to the axis defined by the circular inner surface of the fixed ring, the displacement vane pump comprising:
Dependencies are inferred from the claim text.